ASCVIT V1 aims to make data analysis easier by automating statistical calculations, visualizations, and interpretations.
Includes descriptive statistics, hypothesis tests, regression, time series analysis, clustering, and LLM-powered data interpretation.
- Accepts CSV or Excel files. Provides a data overview including summary statistics, variable types, and data points.
- Histograms, boxplots, pairplots, correlation matrices.
- t-tests, ANOVA, chi-square test.
- Linear, logistic, and multivariate regression.
- Time series analysis.
- k-means, hierarchical clustering, DBSCAN.
Integrates with an LLM (large language model) via Ollama for automated interpretation of statistical results.
An overview of clustering algorithms, including centroid-based (K-Means, K-Means++), density-based (DBSCAN), hierarchical, and distribution-based clustering. The article explains how each type works, its pros and cons, provides code examples, and discusses use cases.
A simple and intuitive explanation of DBSCAN (Density-Based Spatial Clustering of Applications with Noise), a clustering algorithm that can identify outliers, extract new features, compress data, and perform novelty detection. The article provides a fast implementation of DBSCAN in Python.
Elbow curve and Silhouette plots both are very useful techniques for finding the optimal K for K-means clustering
Comparing Clustering Algorithms Following table will give a comparison (based on parameters, scalability and metric) of the clustering algorithms in scikit-learn.
Sr.No Algorithm Name Parameters Scalability Metric Used 1 K-Means No. of clusters Very large n_samples The distance between points. 2 Affinity Propagation Damping It’s not scalable with n_samples Graph Distance 3 Mean-Shift Bandwidth It’s not scalable with n_samples. The distance between points. 4 Spectral Clustering No.of clusters Medium level of scalability with n_samples. Small level of scalability with n_clusters. Graph Distance 5 Hierarchical Clustering Distance threshold or No.of clusters Large n_samples Large n_clusters The distance between points. 6 DBSCAN Size of neighborhood Very large n_samples and medium n_clusters. Nearest point distance 7 OPTICS Minimum cluster membership Very large n_samples and large n_clusters. The distance between points. 8 BIRCH Threshold, Branching factor Large n_samples Large n_clusters The Euclidean distance between points.
