Binary Classification
Model Scenario
With the Binary Classification model, you can analyze feature importance in a binary column with two distinct values. This model also predicts likely outcomes based on various parameters. To achieve optimal results, we'll cover the basics of the Model Scenario, where you will select parameters related to your dataset and the model itself.
To run the scenario, you need to have a Target Feature, which must be a binary column. This means it should contain only two distinct values, such as Yes/No or 1/0.
In the next step, select the Model Features you wish to analyze. All features that fit into the model are selected by default, but you may deselect any features you do not want to use. Graphite Note automatically preprocesses your data for model training, excluding features that are unsuitable. You can view the list of excluded features and the reasons for their exclusion on the right side of the screen.
Moving forward, you'll see a comprehensive list of preprocessing steps that Graphite Note will apply to prepare your data for training. This enhances data quality, ensuring your model produces accurate results. Typically, these steps are performed by data scientists, but with our no-code machine learning platform, Graphite Note handles it for you. After reviewing the preprocessing steps, you can finish and Run Scenario.
The training duration may vary depending on the data volume, typically ranging from 1 to 10 minutes. The training will utilize 80% of the data to train various machine learning models and the remaining 20% to test these models and calculate relevant scores. Once completed, you will receive information about the best model based on the F1 value and details about training time.
Model Performance
To interpret the results after running your model, go to the Performance tab. Here, you can see the overall model performance post-training. Model evaluation metrics such as F1 Score, Accuracy, AUC, Precision, and Recall are displayed to assess the performance of classification models. Details on Model metrics can also be found on Accuracy Overview tab.
On the performance tab, you can explore six different views that provide insights related to model training and results: Key Drivers, Impact Analysis, Model Fit, Accuracy Overview, Training Results and Details.
Key Drivers
Key Drivers indicate the importance of each column (feature) for the Model's predictions. The higher the reliance of the model on a feature, the more critical it is. Graphite uses permutation feature importance to determine these values.
Impact Analysis
The Impact Analysis tab allows you to select various features and analyze, using a bar chart, how changes in each feature affect the target feature. You can switch between Count and Percentage views.
Model Fit
The Model Fit Tab displays the performance of the trained model. It includes a stacked bar chart with percentages showing correct and incorrect predictions for binary values (1 or 0, Yes or No).
Accuracy Overview
The Accuracy Overview tab features a Confusion Matrix to highlight classification errors, making it simple to identify if the model is confusing two classes. For each class, it summarizes the number of correct and incorrect predictions. Find out more about Classification Confusion Matrix in our Understanding ML section.
On the Accuracy Overview tab, you'll find detailed information on correct and incorrect predictions (True positives and negatives / False positives and negatives). Model metrics are explained at the bottom of the section.
Training Results
In the Training Results Tab, you will find information about all the models automatically considered during the training process. Graphite ran several machine learning algorithms suitable for binary classification problems, using 80% of the data for training and 20% for testing. The best model, based on the F1 score, is chosen and marked in green in the models list.
Details
Details tab shows the results of the predictive model, presented in a table format. Each record includes the predicted label, predicted probability, and predicted correctness, offering insights into the model's predictions, confidence, and accuracy for each data point. Dataset test results can be exported into Excel by clicking on the XLSX button in the right corner.
Take actions with Binary Classification
Once the model is trained, you can use it to predict future values, solve binary classification problems, and drive business decisions. Here are ways to take action with your Binary Classification model:
Actionable Insights
In Graphite Note, you can generate Actionable Insights using the Actionable Insights Input Form. Here, you can provide specific details about your business and objectives. This data is then combined with model training results (e.g., Binary Classification with Key Drivers) to produce a tailored analytics narrative aligned with your goals.
Actionable Insights leverage generative AI models to deliver these results. These insights are conclusions drawn from data that can be directly turned into actions or responses. You can access
Actionable Insights from the main navigation menu, provided you are subscribed to a Graphite Note plan that includes actionable insights queries.
Predict
After building and analyzing a predictive model using Graphite Note, the "Predict" function allows you to apply the model to new data. This enables you to forecast outcomes or target variables based on different feature combinations, providing actionable insights for decision-making.
Create Notebook
You can share your prediction results with your team using the Notebook feature. With Notebooks, users can also run their own predictions on your Binary Classification model.
Notebooks allow you to create various visualizations with detailed descriptions. You can plot model results for better understanding and enable users to make their own predictions. For more information, refer to the Data Storytelling section.
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