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AI
Machines mimicking human intelligence
Assisted AI
AI that performs narrow tasks
Autonomous AI
AI that makes decisions independently
Augmented AI
AI that enhances human decision making
Machine Learning
Algorithms that learn from data
Deep Learning
Neural network based learning that mimics the brain
Natural Language Processing
Ability of computers to understand human language
Chatbot
AI system that simulates conversation
Intelligent Agent
Software that acts autonomously in environment
Data Mining
Process of discovering patterns in data
Classification
Predicting categorical outcomes
Regression
Predicting numeric outcomes
Clustering
Grouping similar data points
Association
Finding relationships between variables
Time Series
Data analyzed over time
CRISP-DM
Standard data mining process with 6 steps
Business Understanding
Define problem and goals
Data Understanding
Explore data
Data Preparation
Clean and transform data
Modeling
Apply algorithms
Evaluation
Assess model performance
Deployment
Implement solution
Confusion Matrix
Table evaluating classification results
True Positive
Correct positive prediction
False Positive
Incorrect positive prediction
True Negative
Correct negative prediction
False Negative
Incorrect negative prediction
Logistic Regression
Classification method for binary outcomes
Linear Regression
Predicts continuous values
ROC Curve
Graph of model performance
AUC
Area under ROC curve measuring accuracy
Text Mining
Extracting insights from text data
Unstructured Data
Data not in organized format
Corpus
Collection of text documents
Tokenizing
Breaking text into words
Stop Words
Common words removed from text
Stemming
Reducing words to root form
Sentiment Analysis
Identifying opinion in text
Web Mining
Extracting information from web data
Social Media Analytics
Analyzing social platform data
Time Series Forecasting
Predicting future values based on trends
Dependent Variable
Outcome variable
Independent Variable
Predictor variable