Artificial Intelligence Archives - https://www.bix-tech-ai.com/category/artificial-intelligence/ We are a highly qualified custom software development company with very strong data engineering, data science, BI, and AI practices as well as stellar customer satisfaction ratings - see our 5 stars at independent review site Clutch. We provide staff augmentation and project development services. Fri, 09 Aug 2024 11:46:14 +0000 en-US hourly 1 https://wordpress.org/?v=6.6.1 https://www.bix-tech-ai.com/wp-content/uploads/2022/07/cropped-logo_bix-e1658935623249-32x32.png Artificial Intelligence Archives - https://www.bix-tech-ai.com/category/artificial-intelligence/ 32 32 The AI revolution in startup strategies https://www.bix-tech-ai.com/ai-potential-startups/ https://www.bix-tech-ai.com/ai-potential-startups/#respond Mon, 08 Jul 2024 11:49:32 +0000 https://www.bix-tech-ai.com/?p=17468 Beyond being a mere buzzword, AI has become the linchpin for startups, offering not just innovation but a transformative force for efficiency, creativity, and a robust market stance. Join us as we navigate the exhilarating landscape of AI projects in startups, revealing their profound significance and the waves of impact they create. In a world […]

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Beyond being a mere buzzword, AI has become the linchpin for startups, offering not just innovation but a transformative force for efficiency, creativity, and a robust market stance. Join us as we navigate the exhilarating landscape of AI projects in startups, revealing their profound significance and the waves of impact they create.

In a world where startups are constantly sculpting their identities, AI emerges as the sculptor’s chisel, carving paths to innovation and practical solutions. From automating the mundane to spearheading avant-garde products, AI infuses startups with a culture of ingenuity and problem-solving—a culture at the core of their very existence.

The allure of AI extends beyond its transformative potential. It empowers startups to elevate their decision-making processes through sophisticated analytics. By harnessing AI-driven insights from vast datasets, startups gain a competitive edge. 

This data-driven prowess not only informs but propels strategic planning, fostering a culture where decisions are not just made but are well-informed and impactful.

Moreover, AI crafts a narrative of customer-centricity for startups. Through ingenious applications such as chatbots, virtual assistants, and predictive analytics, startups personalize user experiences. This isn’t just about understanding customer behavior; it’s about sculpting delightful interactions that breed satisfaction and loyalty, the bedrock for sustainable success.

In the crucible of specific AI projects, startups are exploring diverse avenues

  • Chatbots and Virtual Assistants: These AI-driven marvels revolutionize customer interactions, providing instant responses and streamlined support services. The result? Enhanced customer satisfaction and operational efficiency, marking a paradigm shift.
  • Predictive Analytics: A strategic weapon in anticipating market trends and customer preferences, predictive analytics propels startups into a proactive stance, ready to tackle dynamic market demands with informed strategies.
  • Natural Language Processing (NLP): Unleashing the power of NLP, startups extract meaningful insights from unstructured data, diving deep into customer sentiments through avenues like reviews and social media interactions.
  • Image and Speech Recognition: Integrating AI projects with image and speech recognition technologies proves a game-changer. From enhanced security to streamlined processes, startups leverage these applications across diverse sectors.

Yet, amid this transformative journey, startups encounter challenges—resource constraints and the need to navigate data security and ethical considerations. Enter strategic planning, the compass guiding startups to prioritize AI projects aligned with overarching business objectives.

The narrative deepens as we explore success stories of startups seamlessly weaving AI into their fabric. Tangible outcomes underscore the positive impact on growth and market positioning.

As technology unfurls its wings, the future of AI in startups holds untold promise. It’s not just about automating routine tasks; it’s about sculpting a future where startups strategically position themselves for sustained success and relevance in an ever-evolving business landscape.

Ready to Infuse Innovation into Your Startup?

Embark on a journey of transformative growth by exploring tailor-made AI projects for your startup. Schedule a consultation with our AI experts, and together, let’s craft the narrative of your startup’s success!

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3 things you should know about AI PoCs https://www.bix-tech-ai.com/3-things-about-ai-pocs/ https://www.bix-tech-ai.com/3-things-about-ai-pocs/#respond Tue, 18 Jun 2024 12:10:49 +0000 https://www.bix-tech-ai.com/?p=17517 When it comes to adopting Artificial Intelligence (AI) solutions in business, Proof of Concepts (PoCs) serve as invaluable tools for testing and validating ideas before full-scale implementation.  Photo credits by Christina @ wocintechchat.com on Unsplash.  Here are three key aspects you should know about AI PoCs! Purpose and Scope: AI PoCs are designed to assess the […]

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When it comes to adopting Artificial Intelligence (AI) solutions in business, Proof of Concepts (PoCs) serve as invaluable tools for testing and validating ideas before full-scale implementation. 

Photo credits by Christina @ wocintechchat.com on Unsplash

Here are three key aspects you should know about AI PoCs!

  • Purpose and Scope: AI PoCs are designed to assess the feasibility and potential of an AI solution within a specific business context. They aim to demonstrate how AI can address specific challenges or opportunities faced by the organization. It’s essential to define clear objectives and success criteria for the PoC to ensure that it aligns with the company’s strategic goals.
  • Iterative Approach: PoCs follow an iterative approach, allowing for continuous refinement and improvement of the AI solution. It’s crucial to gather feedback and insights throughout the PoC process to identify any shortcomings or areas for enhancement. By iterating on the solution, companies can optimize its performance and increase its value proposition.
  • Decision Making and Scaling: The insights gained from an AI PoC inform decision-making regarding the large-scale implementation of the solution. Companies evaluate the PoC results against predefined metrics to determine whether to proceed with full deployment, make adjustments, or explore alternative solutions. Additionally, scaling an AI solution involves considerations such as infrastructure requirements, data governance, and change management processes.

In conclusion…

AI Proof of Concepts provide a structured approach for evaluating the viability and effectiveness of AI solutions in business settings. 

By understanding the purpose, adopting an iterative approach, and leveraging insights for decision-making, companies can harness the transformative potential of AI to drive innovation and achieve their strategic objectives. If you’re interested in exploring how AI PoCs can benefit your organization, reach out to us today.

To learn more about how AI Proof of Concepts can accelerate innovation in your business, visit our landing page about this subject.

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Exploring the Potential of AI PoCs in Business https://www.bix-tech-ai.com/exploring-ai-pocs-in-business/ https://www.bix-tech-ai.com/exploring-ai-pocs-in-business/#respond Mon, 27 May 2024 00:30:00 +0000 https://www.bix-tech-ai.com/?p=17510 In recent years, Artificial Intelligence (AI) has played an increasingly crucial role in business, offering innovative solutions across various sectors. One of the ways companies are testing and implementing AI is through Proof of Concepts (PoCs).  These PoCs are low-cost, low-risk experiments designed to validate the feasibility and potential of an AI solution in a […]

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In recent years, Artificial Intelligence (AI) has played an increasingly crucial role in business, offering innovative solutions across various sectors. One of the ways companies are testing and implementing AI is through Proof of Concepts (PoCs). 

These PoCs are low-cost, low-risk experiments designed to validate the feasibility and potential of an AI solution in a specific business context. In this blog post, we will explore the importance of AI PoCs for businesses and how they are driving innovation.

Why are AI PoCs essential for businesses?

  • Risk Reduction: PoCs allow companies to test AI solutions in a controlled environment before making a full investment. This helps reduce the financial and operational risks associated with implementing new technologies.
  • Viability Validation: Before committing significant resources, PoCs enable companies to determine if an AI solution is suitable for their specific business objectives. This involves assessing the accuracy, scalability, and effectiveness of the solution in a real-world environment.
  • Informed Decision Making: By conducting a PoC, companies can gather valuable data and insights that inform strategic decision-making. This allows organizations to evaluate if the large-scale implementation of the AI solution is justified and what adjustments may be necessary.

Examples of AI PoCs in Business

  • Customer Experience Personalization: An e-commerce company can conduct a PoC to develop a personalized recommendation system using AI, helping customers discover relevant products based on their purchase history and browsing behavior.
  • Process Optimization: A manufacturing company can implement a PoC to use AI in predicting product demand, thus optimizing supply chain planning and reducing operational costs.
  • Fraud Detection: A financial institution can conduct a PoC to assess the effectiveness of AI algorithms in detecting fraudulent activities in financial transactions, thereby protecting customers and the company against illegal activities.

Want to know more?

Proof of Concepts play a crucial role in the successful adoption of AI solutions in business, allowing companies to test, validate, and iterate their approaches before full-scale implementation. If you’re interested in exploring how AI can drive innovation in your company, contact us today. 

To learn more about how AI Proof of Concepts can transform your business, visit our landing page dedicated to AI PoCs today!

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Algorithm: What is it, what is it for, and what are the benefits? https://www.bix-tech-ai.com/understanding-algorithms-fundamentals-benefits/ https://www.bix-tech-ai.com/understanding-algorithms-fundamentals-benefits/#comments Tue, 23 Apr 2024 12:31:13 +0000 https://www.bix-tech-ai.com/?p=16580 An algorithm is a sequence of well-defined instructions, typically used to solve specific mathematical problems, perform tasks, or carry out calculations and equations. The word’s origin traces back to Al Khowarizmi, a renowned Arab mathematician of the 9th century. Despite often being associated with the complexity of computing, understanding the fundamentals of algorithms is crucial […]

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An algorithm is a sequence of well-defined instructions, typically used to solve specific mathematical problems, perform tasks, or carry out calculations and equations. The word’s origin traces back to Al Khowarizmi, a renowned Arab mathematician of the 9th century. Despite often being associated with the complexity of computing, understanding the fundamentals of algorithms is crucial to explore their potential in problem-solving and task execution.

Want to know more about how algorithms impact our daily lives? Keep reading!

What is an algorithm and what is it for?

Simply put, an algorithm is a sequence of precise instructions designed to perform a specific task or solve a problem. These instructions, often expressed in programming languages, form the basis of nearly everything we do online, from web searches to product recommendations and even medical diagnoses.

In a way, algorithms are like “recipe books” for computers – they guide the processing of data efficiently and effectively, enabling our devices to make quick and accurate decisions. They act as the brains behind digital devices, empowering them to process vast amounts of data efficiently and make rapid, precise decisions.

How do algorithms work?

Understanding how algorithms work is fundamental to exploring their potential in problem-solving and task execution. As mentioned, an algorithm is a finite sequence of executable actions, also known as steps, aimed at solving a specific problem.

In Computer Science and Data Science, these steps are carefully crafted to guide the resolution process efficiently and effectively. It’s essential to note that the algorithm itself is not the program; rather, it’s the logic behind the instructions that must be followed to achieve the desired solution. They are designed to handle different types of data and situations, using various control structures like loops, conditionals, and functions to achieve the desired result.

When executed, algorithms follow a predetermined order of operations, where each step is performed according to established conditions and provided input data. These steps can range from simple mathematical operations to manipulating complex data structures, depending on the nature of the problem to be solved.

A common practice is to use the flowchart method, offering a visual and schematic representation of the algorithm’s steps. This technique provides a clear visualization of the execution flow and aids in identifying potential flaws or improvements in the algorithm at hand. Thus, when creating an algorithm, carefully considering each instruction and condition is essential to ensure its effectiveness in solving the proposed problem.

What are the benefits of algorithms?

Algorithms offer a range of significant benefits that directly impact how we interact with technology and how computational systems function. Check it out:

Efficiency

Algorithms are designed to perform tasks efficiently, meaning they can process large volumes of data and execute complex operations promptly. This optimization helps enhance system performance and reduce the runtime of computational processes.

Precision

Due to their logical and structured nature, algorithms can produce accurate and consistent results, provided the instructions are correctly implemented. This is crucial in various applications, such as financial transaction processing, medical diagnosis, and data analysis.

Task Automation

Algorithms enable the automation of repetitive and routine tasks, freeing up humans to focus on more complex and creative activities. This can increase productivity and efficiency across various sectors, from industry to financial services.

Decision-Making

In many cases, algorithms are used to make automatic decisions based on predefined data and criteria. This can be beneficial in situations where processing large amounts of information and identifying relevant patterns or trends is necessary.

Main types of algorithms

There are various algorithms that play crucial roles in a variety of computational applications. Here are some key examples:

Sorting Algorithms

Examples include Quicksort (used in programming languages like C++ and Java to sort arrays), Mergesort (utilized in database management systems to sort large datasets), and Heapsort (implemented in operating systems for memory allocation management). They all organize elements in a list in a specific order, such as ascending or descending.

Search Algorithms

Binary search and depth-first search are common examples. They are used to find a specific element in an ordered list or explore a solution space for the optimal solution. While binary search is widely used in databases to locate specific records, depth-first search is applied in artificial intelligence algorithms like minimax to find the best move in games like chess.

Tree Algorithms

Binary search tree and binary tree insertion algorithms are essential for handling and organizing data in a tree structure. The binary search tree algorithm is used in compilers to analyze the syntactic structure of computer programs. Binary tree insertion, on the other hand, is applied in databases to organize and search data efficiently.

Machine Learning Algorithms

This type of algorithm is widely used for data analysis, prediction, and classification in machine learning and data mining problems. Examples include linear regression, used in sales forecasting and market analysis applications, and k-means, employed in recommendation systems to group similar items based on user behavior.

Looking for customized algorithm solutions to boost your company’s growth?

Contact BIX Tech today! Our team specializes in developing tailor-made algorithms that meet the specific needs of your business, whatever they may be. 

Let us help you achieve your goals and get results: just click on the banner below to chat with one of our experts!

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When does my company need AI services? https://www.bix-tech-ai.com/when-does-my-company-need-ai-services/ https://www.bix-tech-ai.com/when-does-my-company-need-ai-services/#respond Wed, 10 Apr 2024 14:25:00 +0000 https://www.bix-tech-ai.com/?p=16435 According to researchers from Stanford University and MIT, AI can increase workers’ productivity by up to 14%. Such data only reinforces that Artificial Intelligence proves to be an essential tool for companies aiming to excel in an increasingly competitive and data-driven market. And those who think that only large corporations can embrace this technology are […]

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According to researchers from Stanford University and MIT, AI can increase workers’ productivity by up to 14%. Such data only reinforces that Artificial Intelligence proves to be an essential tool for companies aiming to excel in an increasingly competitive and data-driven market.

And those who think that only large corporations can embrace this technology are mistaken. Nowadays, companies of all sizes can benefit from AI services to boost growth – provided that the conditions are suitable for adopting this resource. Want to know exactly when a company needs AI services? Keep reading and learn from BIX!

Understanding AI and Data Science Services Needs

Before delving into the need for AI services, it’s essential to understand the context in which these projects fit.

A Data Science project is not just about implementing AI algorithms. It’s a process of optimizing business metrics based on data analysis and pattern identification to solve specific problems. In many cases, clients don’t have a defined scope for AI, and this is where the role of the data scientist comes in, aligning strategies with business objectives.

However, to be able to rely on AI and Data Science services as a whole, the company needs to have significant data maturity – both in terms of data infrastructure and understanding its strategic value. Let’s dive deeper into the subject.

4 Reasons Why Data Maturity is Essential in AI and Data Science Projects

As mentioned earlier, the level of data maturity is a key point for the realization or not of projects focused on Artificial Intelligence. Understand better below which factors are necessary to determine if your company is ready to hire AI services.

Data Quality

 Artificial Intelligence and Data Science as a whole are highly sensitive to data quality. If they are not treated correctly, inconsistent, or incomplete, AI models and analyses resulting from these data will be impaired.

Therefore, it is essential to first have a Data Engineering solution, as it is responsible for collecting, organizing, integrating, storing, and processing data. Thus, AI models will be trained with assertive and reliable data.

Data Availability and Access 

Following the same line of reasoning as the previous point, to train AI models and perform data analyses, it is essential to have access to a wide variety of relevant data.

Also, data-mature companies typically have a robust infrastructure for collecting, storing, and accessing data. Thus, it becomes easier to extract deeper insights and develop more accurate models.

Data Governance 

A data governance structure is essential to ensure that data is managed ethically, securely, and in compliance with regulations and internal policies such as LGPD. And this involves issues such as privacy, security, and regulatory compliance. In this sense, a data-mature company will have established policies and procedures to ensure the protection and proper use of its data.

Understanding the Strategic

Value of Data To make the most of AI and Data Science services, a company needs to understand the strategic value of its data. This involves identifying how data can be used to drive insights, innovation, and informed decision-making.

Why Choose BIX for AI Services?

With over 1,000 projects developed, BIX excels not only in AI services but also in end-to-end analytical solutions. If your organization lacks any of the mentioned capabilities, we ensure readiness for the next step. Specializing in Data Engineering, Business Intelligence, Data Science, and Software Development, we prioritize results, employing the best practices and tools available. To outshine your competition, reach out to our team by clicking the banner below!

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How I wish someone would explain SHAP values to me https://www.bix-tech-ai.com/how-i-wish-someone-would-explain-shap-values-to-me/ https://www.bix-tech-ai.com/how-i-wish-someone-would-explain-shap-values-to-me/#comments Thu, 04 Apr 2024 12:30:00 +0000 https://www.bix-tech-ai.com/?p=16389 Have you ever struggled to interpret the decisions of an AI? SHAP was created to help you overcome these issues. The acronym stands for SHapley Additive exPlanations, a relatively recent method (less than 10 years old) that seeks to explain the decisions of artificial intelligence models in a more direct and intuitive way, avoiding “black […]

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Have you ever struggled to interpret the decisions of an AI? SHAP was created to help you overcome these issues. The acronym stands for SHapley Additive exPlanations, a relatively recent method (less than 10 years old) that seeks to explain the decisions of artificial intelligence models in a more direct and intuitive way, avoiding “black box” solutions.

Its concept is based on game theory with robust mathematics. However, a complete understanding of the mathematical aspects is not necessary to use this methodology in our daily lives. For those who wish to delve deeper into the theory, I recommend reading this publication in English.

In this text, I will demonstrate practical interpretations of SHAP, as well as understanding its results. Without further ado, let’s get started! To do this, we’ll need a model to interpret, right?

I will use as a basis the model built in my notebook (indicated by the previous link). It is a tree-based model for binary prediction of Diabetes. In other words, the model predicts people who have this pathology. For the construction of this analysis, the shap library was used, initially maintained by the author of the article that originated the method, and now by a vast community.

First, let’s calculate the SHAP values following the package tutorials:

				
					# Library
import shap

# SHAP Calculation - Defining explainer with desired characteristics
explainer = shap.TreeExplainer(model=model)

# SHAP Calculation
shap_values_train = explainer.shap_values(x_train, y_train)

				
			

Note that I defined a TreeExplainer. This is because my model is based on a tree, so the library has a specific explainer for this family of models. In addition, up to this point, what we did was:

  • Define an explainer with the desired parameters (there are a variety of parameters for TreeExplainer, I recommend checking the options in the library).
  • Calculate the SHAP values for the training set.

What are SHAP values?

With the set of SHAP values already defined for our training set, we can evaluate how each value of each variable influenced the result achieved by the predictive model. In our case, we will be evaluating the results of the models in terms of probability, i.e., the X percentage that the model presented to say whether the correct class is 0 (no diabetes) or 1 (has diabetes). 

It is worth noting that this may vary from model to model: If you use an XGBoost model, probably your default result will not be in terms of probability as it is for the random forest of the sklearn package.

To make the value in terms of probability, you can define it through the TreeExplainer, using parameters.

But the burning question is: How can I interpret SHAP values? To do this, let’s calculate the prediction probability result for the training set for any sample that predicted a positive value:

				
					# Prediction probability of the training set
y_pred_train_proba = model.predict_proba(x_train)

# Let's now select a result that predicted as positive
print('Probability of the model predicting negative -', 100*y_pred_train_proba[3][0].round(2), '%.')
print('Probability of the model predicting positive -', 100*y_pred_train_proba[3][1].round(2), '%.')

				
			

The above code generated the probability given by the model for the two classes. Let’s now visualize the SHAP values for that sample according to the possible classes:

				
					# SHAP values for this sample in the positive class
shap_values_train[1][3]
array([-0.01811709,  0.0807582 ,  0.01562981,  0.10591462, 0.11167778, 0.09126282,  0.05179034, -0.10822825])

# SHAP values for this sample in the negative class
shap_values_train[0][3]
array([ 0.01811709, -0.0807582 , -0.01562981, -0.10591462, -0.11167778, -0.09126282, -0.05179034,  0.10822825])

				
			

Simplified formula for SHAP, where i refers to the category that those values represent (in our case, category 0 or 1).

Let’s check this in code:

				
					# Sum of SHAP values for the negative class
print('Sum of SHAP values for the negative class in this sample:', 100*y_pred_train_proba[3][0].round(2) - 100*expected_value[0].round(2))
# Sum of SHAP values for the positive class
print('Sum of SHAP values for the positive class in this sample:', 100*y_pred_train_proba[3][1].round(2) - 100*expected_value[1].round(2))

"Sum of SHAP values for the negative class in this sample: -33.0
Sum of SHAP values for the positive class in this sample: 33.0"

				
			

And as a lesson from home office, here’s the following question: The sum of SHAP values for a class x added to the base value of that class will exactly give the probability value of the model found at the beginning of this section!

Note that the SHAP values match the result presented earlier. But what do the individual SHAP values represent? For this, let’s use more code, using the positive class as a reference:

				
					for col, vShap in zip(x_train.columns, shap_values_train[1][3]):
 print('###################', col)
 print('SHAP Value associated:', 100*vShap.round(2))

################### Pregnancies
SHAP Value associated: -2.0
################### Glucose
SHAP Value associated: 8.0
################### BloodPressure
SHAP Value associated: 2.0
################### SkinThickness
SHAP Value associated: 11.0
################### Insulin
SHAP Value associated: 11.0
################### BMI
SHAP Value associated: 9.0
################### DiabetesPedigreeFunction
SHAP Value associated: 5.0
################### Age
SHAP Value associated: -11.0

				
			

Here we evaluate the SHAP values for the positive class for sample 3. Positive SHAP values like Glucose, BloodPressure, SkinThickness, BMI, and DiabetesPedigreeFunction influenced the model in predicting the positive class correctly. In other words, positive values imply a tendency towards the reference category.

On the other hand, negative values like Age and Pregnancies aim to indicate that the true class is negative (the opposite). In this example, if both were also positive, our model would result in a 100% prediction for the positive class. However, since that did not happen, they represent the 17% that goes against the choice of the positive class.

In summary, you can think of SHAP as contributions to the model’s decision between classes:

  • In this case, the sum of SHAP values cannot exceed 50%.
  • Positive values considering a reference class indicate favorability towards that class in prediction.
  • Negative values indicate that the correct class is not the reference one but another class.

Additionally, we can quantify the contribution of each variable to the final response of that model in percentage terms by dividing by the maximum possible contribution, in this case, 50%:

				
					for col, vShap in zip(x_train.columns, shap_values_train[1][3]):
 print('###################', col)
 print('SHAP Value associated:', 100*(100*vShap.round(2)/50).round(2),'%')

################### Pregnancies
SHAP Value associated: -4.0 %
################### Glucose
SHAP Value associated: 16.0 %
################### BloodPressure
SHAP Value associated: 4.0 %
################### SkinThickness
SHAP Value associated: 22.0 %
################### Insulin
SHAP Value associated: 22.0 %
################### BMI
SHAP Value associated: 18.0 %
################### DiabetesPedigreeFunction
SHAP Value associated: 10.0 %
################### Age
SHAP Value associated: -22.0 %


				
			

Here, we can see that Insulin, SkinThickness, and BMI together had an influence of 62%. We can also notice that the variable Age can nullify the impact of SkinThickness or Insulin in this sample.

General Visualization

Now that we’ve seen many numbers, let’s move on to the visualizations. In my perception, one of the reasons why SHAP has been so widely adopted is the quality of its visualizations, which, in my opinion, surpass those of LIME.

Let’s make an overall assessment of the training set regarding our model’s prediction to understand what’s happening among all these trees:

				
					# Graph 1 - Variable Contributions
shap.summary_plot(shap_values_train[1], x_train, plot_type="dot", plot_size=(20,15));

				
			

Graph 1: Summary Plot for SHAP Values.

Evaluation of Graph 1

Before assessing what this graph is telling us about our problem, we need to understand each feature present in it:

  • The Y-axis represents the variables of our model in order of importance (SHAP orders this by default, but you can choose another order through parameters).
  • The X-axis represents the SHAP values. As our reference is the positive category, positive values indicate support for the reference category (contributes to the model predicting the positive category in the end), and negative values indicate support for the opposite category (in this case of binary classification, it would be the negative class).
  • Each point on the graph represents a sample. Each variable has 800 points distributed horizontally (since we have 800 samples, each sample has a value for that variable). Note that these point clouds expand vertically at some point. This occurs due to the density of values of that variable in relation to the SHAP values.
  • Finally, the colors represent the increase/decrease of the variable’s value. Deeper red tones are higher values, and bluish tones are lower values.

In general, we will look for variables that:

  • Have a clear color division, i.e., red and blue in opposite places. This information shows that they are good predictors because only by changing their value can the model more easily assess their contribution to a class.
  • Associated with this, the larger the range of SHAP values, the better that variable will be for the model. Let’s consider Glucose, which in some situations presents SHAP values around 0.3, meaning a 30% contribution to the model’s result (because the maximum any variable can reach is 50%).

The variables Glucose and Insulin exhibit these two mentioned characteristics. Now, note the variable BloodPressure: Overall, it is a confusing variable as its SHAP values are around 0 (weak contributions) and with a clear mix of colors. Moreover, you cannot see a trend of increase/decrease of this variable in the final response. It is also worth noting the variable Pregnancies, which does not have as large a range as Glucose but shows a clear color division.

Through this graph, you can get an overview of how your model arrives at its conclusions from the training set and variables. The following graph shows an average contribution from the previous plot:

				
					Graph 2 - Importance Contribution of Variables
shap.summary_plot(shap_values_train[1], x_train, plot_type="bar", plot_size=(20,15));
				
			

Graph 2: Variable Importance Plot based on SHAP Values.

Evaluation of Graph 2

Essentially, as the title of the X-axis suggests, each bar represents the mean absolute SHAP values. Thus, we evaluate the average contribution of the variables to the model’s responses. Considering Glucose, we see that its average contribution revolves around 12% for the positive category.

This graph can be created in relation to any of the categories (I chose the positive one) or even all of them. It serves as an excellent graph to replace the first one in explanations to managers or individuals more connected to the business area due to its simplicity.

Interpretation of Prediction for the Sample

In addition to general visualizations, SHAP provides more individual analyses per sample. Graphs like these are interesting to present specific results. For example, suppose you are working on a customer churn problem, and you want to show how your model understands the departure of the company’s largest customer.

Through the graphs presented here, you can effectively demonstrate in a presentation what happened through Machine Learning and discuss that specific case. The first graph is the Waterfall Plot built in relation to the positive category for the sample 3 we studied earlier.

				
					# Graph 3 - Impact of variables on a specific prediction of the model in Waterfall Plot version
shap.plots._waterfall.waterfall_legacy(expected_value=expected_value[1], shap_values=shap_values_train[1][3].reshape(-1), feature_names=x_train.columns, show=True)

				
			

Graph 3: Contribution of Variables to the Prediction of a Sample.

Evaluation of Graph 3

In this graph, you can see that your prediction starts at the bottom and rises to the probability result.

Each variable contributes positively (model predicting the positive category) and negatively (model predicting another class). In this example, we see, for instance, that the contribution of SkinThickness is offset by the contribution of Age.

Also, in this graph, the X-axis represents the SHAP values, and the arrow values indicate the contributions of these variables.

In the next graph, we have a new version of this visualization:

				
					# Graph 4 - Impact of variables on a specific prediction of the model in Line Plot version
shap.decision_plot(base_value=expected_value[1], shap_values=shap_values_train[1][3], features=x_train.iloc[3,:], highlight=0)

				
			

Graph 4: Contribution of Variables to the Prediction of a Sample through “Path”.

Evaluation of Graph 4

This graph is equivalent to the previous one. As our reference category is positive, the model’s result follows towards more reddish tones (on the right), indicating a prediction for the positive class, and towards the left, a prediction for the negative class. In this graph, values close to the arrow indicate the values of the variables (for the sample) and not the SHAP values.

Conclusion

SHAP emerges as a tool capable of explaining, in a graphical and intuitive way, how artificial intelligence models arrive at their results. Through the interpretation of the graphs, it is possible to understand the decision-making in Machine Learning in a simplified manner, allowing for explanations to be presented and knowledge to be conveyed to people who do not necessarily work in this area.

Throughout this text, we were able to assess the key concepts about SHAP values, as well as their visualizations. From SHAP values, we understand how the values of each variable influenced the model’s outcome. In this case, we evaluated the results in terms of probability. Analyzing the visualizations, it was possible to perceive that SHAP allows us to interpret specific and individual results, as well as understand what the scheme expresses about the problem.

Despite the robust mathematics, understanding this methodology is simpler than it seems. The SHAP technology does not stop here! There are many things that can be done with this technique, and that’s why I strongly recommend:

  1. Reading their documentation.
  2. Evaluating other model interpretation methods in my notebook on Kaggle.

Do you want to discuss other applications of SHAP? Do you want to implement data science and make decision-making more accurate in your business? Get in touch with us! Let’s schedule a chat to discuss how technology can help your company!

Written by Kaike Reis.

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Mastering Retrieval-Augmented Generation (RAG) for Next-Level AI Solutions https://www.bix-tech-ai.com/mastering-retrieval-augmented-generation/ https://www.bix-tech-ai.com/mastering-retrieval-augmented-generation/#comments Thu, 21 Mar 2024 10:00:00 +0000 https://www.bix-tech-ai.com/?p=16307 Introducing the cutting-edge technique in generative AI: Retrieval-Augmented Generation (RAG). To grasp its essence, envision a scenario within a hospital room. In the realm of medical practice, doctors leverage their extensive knowledge and expertise to diagnose and treat patients.  Yet, in the face of intricate medical conditions requiring specialized insights, doctors often consult academic literature […]

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Introducing the cutting-edge technique in generative AI: Retrieval-Augmented Generation (RAG). To grasp its essence, envision a scenario within a hospital room.

In the realm of medical practice, doctors leverage their extensive knowledge and expertise to diagnose and treat patients. 

Yet, in the face of intricate medical conditions requiring specialized insights, doctors often consult academic literature or delegate research tasks to medical assistants. This ensures the compilation of relevant treatment protocols to augment their decision-making capabilities.

In the domain of generative AI, the role of the medical assistant is played by the process known as RAG.

So, what exactly is RAG?

RAG stands for Retrieval-Augmented Generation, a methodology designed to enhance the accuracy and reliability of Large Language Models (LLMs) by expanding their knowledge through external data sources. While LLMs, neural networks trained on massive datasets, possess the ability to generate prompts swiftly with billions of parameters, they falter when tasked with delving into specific topics or current facts.

This is where RAG comes into play, enabling LLMs to extend their robust expertise without necessitating the training of a new neural network for each specific task. It emerges as a compelling and efficient alternative to generate more dependable prompts.

Image developed with Artificial Intelligence.

Why is RAG pivotal?

In tasks that are both complex and knowledge-intensive, general LLMs may see a decline in performance, leading to the provision of false information, outdated guidance, or answers grounded in unreliable references. This degradation stems from intrinsic characteristics of LLMs, including reliance on past information, lack of updated knowledge, non-helpful model explainability, and a training regimen based on general data that overlooks specific business processes.

These challenges, coupled with the substantial computing power required for model development and training, make the utilization of a general model in certain applications, like chatbots, a potential detriment to user trust. A case in point is the recent incident involving the AirCanada chatbot, which furnished a customer with inaccurate information, ultimately misleading them into purchasing a full-price ticket.

RAG presents a viable solution to these issues by fine-tuning pre-trained LLMs with authoritative data sources. This approach offers organizations enhanced control and instills trust in the generated responses, mitigating the risks associated with the misuse of generative AI technology.

What are the practical applications of RAG?

RAG models have demonstrated reliability and versatility across various knowledge domains. In practical terms, any technical material, policy manual, or report can be leveraged to enhance Large Language Models (LLMs). This broad applicability positions RAG as a valuable asset for a diverse range of business markets. Some of its most conventional applications include:

  • Chatbots: Facilitating customer assistance by providing personalized and more accurate answers tailored to the specific business context.
  • Content generation: Offering capabilities such as text summarization, article generation, and personalized analysis of lengthy documents.
  • Information research: Improving the performance of search engines by efficiently retrieving relevant knowledge or documents based on user prompts.

Image developed with Artificial Intelligence.

How does RAG work?

RAG operates through the fine-tuning of a pre-trained model. Fine-tuning, a transfer learning approach, involves training the weights of a pre-trained model on new data. This process can be applied to the entire neural network or a subset of its layers, with the option to “freeze” layers that are not being fine-tuned.

The implementation of RAG is relatively straightforward, with the coauthors suggesting that it can be achieved with just five lines of code. The fine-tuning process typically involves four main steps:

  1. Create external data and prepare the training dataset: Collect data from various sources, such as files, database records, or long-form text. Manipulate the data to fit the model’s data ingestion format.
  2. Train a new fine-tuned model: After ensuring the data is appropriately formatted, proceed with the fine-tuning process. The duration of model training can vary from minutes to hours, depending on the dataset size and available computational power.
  3. Model validation: Evaluate the training metrics, including training loss and accuracy, to validate the model. Generate samples from the baseline model and fine-tune it for comparison. If performance is suboptimal, iterate over data quality, quantity, and model hyperparameters.
  4. Model deployment and utilization: Once validated, deploy the model for real-world tasks, ensuring integration with the system is reliable, safe, and scalable. Continuous monitoring is crucial to assess system performance and responsiveness.

To develop your own RAG model, you can follow a step-by-step tutorial on fine-tuning the GPT-3.5 provided by OpenAI.

Ready to explore the limitless possibilities of Retrieval-Augmented Generation (RAG) with our team of experts?

Let’s delve deeper into how RAG can transform your business and elevate your AI capabilities. 

Connect with our specialists and unlock the full potential of generative AI tailored to your unique needs. Let innovation guide your journey – reach out to us now!

Article written by Murillo Stein, data scientist at BIX.

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2024 Clutch Badges Showcase BIX’s Excellence https://www.bix-tech-ai.com/bix-tech-2024-clutch-badges-tech-excellence/ https://www.bix-tech-ai.com/bix-tech-2024-clutch-badges-tech-excellence/#comments Mon, 26 Feb 2024 12:45:40 +0000 https://www.bix-tech-ai.com/?p=16220 Pioneering the frontier of cutting-edge technological solutions, BIX Tech proudly basks in the radiance of the prestigious 2024 Clutch Badges, solidifying its unrivaled leadership not only in Fort Lauderdale, Miami, and Florida but also extending its influence across the dynamic landscape of Latin America.  Garnering a stellar 5-star rating on Clutch, BIX transcends the mere […]

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Pioneering the frontier of cutting-edge technological solutions, BIX Tech proudly basks in the radiance of the prestigious 2024 Clutch Badges, solidifying its unrivaled leadership not only in Fort Lauderdale, Miami, and Florida but also extending its influence across the dynamic landscape of Latin America. 

Garnering a stellar 5-star rating on Clutch, BIX transcends the mere realm of a technology company; it stands as a beacon of innovation, epitomizing an unwavering commitment to excellence.

Distinguished Achievements in Fort Lauderdale and Miami

In the vibrant tech landscape of Fort Lauderdale in 2024, BIX Tech seized the title of Top Chatbot Company, showcasing its mastery in crafting revolutionary chatbots that redefine user engagement. Simultaneously, in the dynamic city of Miami, BIX Tech claimed the coveted award for Best IT Services Company, a testament to its holistic approach and unparalleled expertise in delivering comprehensive technological services.

BIX’s prominence extends beyond these accolades, with notable distinctions in various categories such as Software Development, Angular Developers, Staff Augmentation, Artificial Intelligence, BI & Big Data, and Machine Learning, solidifying its authoritative position in the technological forefront of Miami.

Excellence Radiates in Florida and Beyond: 2024 Highlights

Within the diverse and thriving landscape of Florida, BIX Tech continues to captivate with a plethora of awards spanning specific service categories. 

Its exceptional prowess in Manufacturing, Small Business, Retail, and more is celebrated through accolades in categories such as Software Development, Artificial Intelligence, BI & Big Data, Software Developers in Manufacturing, and Big Data Compliance, Fraud & Risk Management.

Global and Regional Recognition: United States and Latin America

Elevating its influence to a national scale, BIX proudly claims the title of the Top Machine Learning Company in the United States for 2024. Excelling not only in Software Development in Retail but also in Big Data Compliance, Fraud & Risk Management, BIX Tech reaffirms its dominance in shaping the technological landscape.

Adding a global touch to its acknowledgment, BIX Tech is recognized as the Top Qlik Company in 2024. Meanwhile, in the vibrant Latin American market, it stands out as the Top Machine Learning Company, Top Chatbot Company, and Top Artificial Intelligence Company, further solidifying its regional influence.

Unwavering Commitment to Excellence: Clutch Badges 2024

 

The 2024 Clutch Badges serve as tangible proof of BIX Tech’s steadfast commitment to excellence, innovation, and unwavering dedication to customer satisfaction. For BIX, these accolades are not just laurels; they signify the beginning of an exciting journey toward further heights of technological prowess.

Embark on Your Innovation Journey with Us

 

For those seeking more than ordinary technology, BIX Tech invites you to join the revolution. The 2024 Clutch Badges are emblematic of our commitment to propel your projects to unimaginable heights. 

Connect with us now, and let’s innovate together, turning your ideas into reality. 

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Leveraging AI for Enhanced Customer Experiences https://www.bix-tech-ai.com/ai-enhanced-customer-experiences/ https://www.bix-tech-ai.com/ai-enhanced-customer-experiences/#comments Thu, 15 Feb 2024 12:18:58 +0000 https://www.bix-tech-ai.com/?p=16055 AI is not just a hot topic of the moment in today’s fast-paced digital landscape; it’s a game-changer that is revolutionizing the way businesses connect with their customers. In this article, we will explore the practical insights that make AI unique, paving the way for enhanced customer experiences. The true magic of AI goes beyond […]

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AI is not just a hot topic of the moment in today’s fast-paced digital landscape; it’s a game-changer that is revolutionizing the way businesses connect with their customers. In this article, we will explore the practical insights that make AI unique, paving the way for enhanced customer experiences.

The true magic of AI goes beyond automation, providing a transformative edge in customer interactions. Imagine chatbots that are not mere automated responders but offer instant support, guiding customers through various processes. These AI-powered chatbots ensure 24/7 support, enhancing efficiency and contributing to a seamless and responsive customer service experience.

One of the most notable aspects of AI lies in its predictive analytics capabilities. By analyzing customer data, businesses can anticipate future behaviors and preferences. This enables a proactive approach to customer needs, allowing businesses to personalize offerings and provide a more tailored experience. Stay one step ahead by understanding customer behavior and delivering solutions before they are even requested.

AI takes personalization to a whole new level by analyzing vast datasets to understand individual preferences. From personalized recommendations to targeted marketing messages, businesses can create a unique and tailored experience for each customer. This not only increases satisfaction but also strengthens customer loyalty, making them feel recognized and valued.

The efficiency of AI goes beyond task automation; it’s about optimizing processes to ensure efficiency. Whether providing instant responses through chatbots or analyzing data for predictive insights, AI streamlines operations, allowing businesses to focus on delivering a superior customer experience.

Photo credits by Freepik.

In conclusion, adopting AI is not just a choice; it’s a strategic move for businesses looking to stay competitive in the ever-evolving landscape. By embracing the practical insights discussed here, businesses can harness the power of AI to elevate customer interactions, drive satisfaction, and redefine the way they connect with their audience. The future of customer experiences is here, powered by AI.

Elevating Customer Experiences with AI Wisdom

At BIX, we excel in the art of elevating customer experiences through the strategic use of AI. Our tailored solutions seamlessly incorporate cutting-edge AI technologies, equipping businesses with the essential tools to lead the charge in customer engagement. Join forces with us to unleash the complete potential of AI for your business.

In a landscape where customer expectations are ever-evolving, it’s imperative for businesses to embrace the formidable power of AI to deliver experiences that not only meet but exceed expectations. We empower businesses to skillfully leverage AI for customer interactions that transcend mere efficiency, creating experiences that are truly delightful. Propel yourself forward in the competitive arena of customer experience with AI insights curated by our expert team.

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AI-Driven Innovations in Software Development https://www.bix-tech-ai.com/ai-driven-innovations-software-development/ https://www.bix-tech-ai.com/ai-driven-innovations-software-development/#respond Tue, 23 Jan 2024 12:48:00 +0000 https://www.bix-tech-ai.com/?p=15957 Within the dynamic landscape of software development, Artificial Intelligence (AI) emerges as a transformative force, reshaping traditional approaches and ushering in a new era of groundbreaking innovation. Take a journey into the realm of AI-driven advancements in software development, where the limitless potential of technology converges with the boundless creativity of human ingenuity.  AI transcends […]

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Within the dynamic landscape of software development, Artificial Intelligence (AI) emerges as a transformative force, reshaping traditional approaches and ushering in a new era of groundbreaking innovation. Take a journey into the realm of AI-driven advancements in software development, where the limitless potential of technology converges with the boundless creativity of human ingenuity. 

AI transcends being a mere technological tool; it catalyzes profound transformations in the world of software development. From revolutionizing coding practices to enhancing user experiences, AI-driven innovations relentlessly push the boundaries of what can be achieved. Let’s delve into the pivotal domains where AI is etching its indelible mark.

Smarter Code Generation: The Evolution of AI-Powered Development Tools

Experience the future of coding with AI-infused development tools. These intelligent companions leverage machine learning algorithms to understand coding patterns, offer predictive suggestions, and automate repetitive tasks. Developers are empowered to write more efficient and error-free code with the assistance of these advanced coding allies.

Enhanced Testing and Quality Assurance: The Rise of Autonomous Testing

AI is redefining the testing landscape by automating test case generation, execution, and analysis. Machine learning algorithms learn from historical testing data, predict potential issues, and optimize testing strategies. This shift towards autonomous testing accelerates the testing process and elevates overall software quality.

Photo credits by Freepik.

Intelligent User Interfaces: Crafting Personalized Experiences Through AI

User interfaces are undergoing a revolution with the integration of AI, delivering personalized and intuitive experiences. Natural Language Processing (NLP) and machine learning enable applications to understand user behavior, preferences, and context, leading to the creation of intelligent interfaces that adapt and respond to user needs in real-time.

Predictive Analytics for Performance Optimization: Unleashing AI-Powered Insights

AI-driven analytics tools delve into vast datasets to provide insights into application performance. From predicting potential bottlenecks to optimizing resource allocation, these tools empower developers to proactively address performance issues, ensuring applications run smoothly and efficiently.

Continuous Integration and Deployment (CI/CD) Optimization: Streamlining Processes with AI

AI is optimizing the CI/CD pipeline by automating code integration, testing, and deployment processes. This not only accelerates the development lifecycle but also enhances the reliability of continuous integration and deployment, reducing errors and ensuring faster, more efficient releases.

Leading the Charge in AI-Infused Software Development

At BIX Tech, we embrace the transformative power of AI in software development. Our commitment to innovation and excellence is evident in our AI-driven solutions that empower businesses to stay ahead in the ever-evolving digital landscape.

The era of AI-driven innovations in software development has arrived, presenting unparalleled opportunities for efficiency, precision, and user satisfaction. As businesses navigate this technological evolution, partnering with a forward-thinking technology leader like BIX Tech ensures a seamless integration of AI into the software development journey.

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