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FEATURE SELECTION#1

The process of selecting a subset of relevant features for model building, improving accuracy and reducing overfitting.

CUSTOMER CHURN#2

The loss of customers over time, often measured as a percentage of total customers, critical for business strategy.

RECURSIVE FEATURE ELIMINATION (RFE)#3

A feature selection technique that recursively removes the least important features based on model performance.

LASSO#4

A regression analysis method that performs both variable selection and regularization to enhance prediction accuracy.

MODEL PERFORMANCE#5

A measure of how well a machine learning model predicts outcomes, often evaluated using metrics like accuracy and F1 score.

PREDICTIVE MODELING#6

The process of creating a model that forecasts future outcomes based on historical data.

SCIKIT-LEARN#7

A popular Python library for machine learning that provides simple and efficient tools for data mining and analysis.

CROSS-VALIDATION#8

A technique for assessing how the results of a statistical analysis will generalize to an independent dataset.

DATA VISUALIZATION#9

The graphical representation of information and data, making complex data more accessible and understandable.

FEATURE IMPORTANCE#10

A technique that ranks features based on their contribution to the model's predictive power.

HYPERPARAMETER TUNING#11

The process of optimizing the parameters of a machine learning model to improve performance.

DATA STORYTELLING#12

The practice of using data to tell a compelling story, making insights more relatable and actionable.

MODEL EVALUATION METRICS#13

Quantitative measures used to assess the performance of a machine learning model, such as precision and recall.

OVERFITTING#14

A modeling error that occurs when a model learns the training data too well, failing to generalize to new data.

UNDERFITTING#15

A modeling error that occurs when a model is too simple to capture the underlying trend of the data.

VARIABLE SELECTION#16

The process of selecting a subset of relevant features from a larger dataset to improve model performance.

DATA PREPROCESSING#17

The steps taken to clean and prepare raw data for analysis, ensuring accuracy and consistency.

TRAINING SET#18

A subset of data used to train a machine learning model, allowing it to learn patterns and relationships.

TESTING SET#19

A separate subset of data used to evaluate the performance of a trained machine learning model.

BUSINESS STRATEGY#20

A plan of action designed to achieve specific business goals, often informed by data analysis.

RETAINED CUSTOMERS#21

Customers who continue to engage with a business, crucial for sustaining revenue and growth.

INSIGHT COMMUNICATION#22

The process of conveying analytical findings effectively to stakeholders, ensuring understanding and action.

ANALYTICAL REPORTING#23

The practice of summarizing data analysis findings in a structured format, often for decision-making purposes.

REAL-WORLD APPLICATIONS#24

Practical uses of theoretical concepts in everyday business scenarios, enhancing relevance and effectiveness.

FEATURE ENGINEERING#25

The process of using domain knowledge to create new features from raw data, improving model performance.