Changelog

Source: NEWS.md

TextAnalysisR 0.0.3 (2025-12-27)

Breaking Changes

• fit_embedding_topics() renamed to fit_embedding_model() for consistency with other topic modeling functions (fit_hybrid_model(), fit_temporal_model()). The old name still works but is deprecated.

New Features

• Multi-format file import (PDF, DOCX, XLSX, CSV, TXT)
• Hybrid topic modeling (STM + BERTopic)
• Semantic similarity and document clustering
• Lexical diversity metrics

Embedding Enhancements

• get_best_embeddings(): Auto-detects and uses best available provider
  • Priority: Ollama (local) > sentence-transformers (Python) > OpenAI/Gemini (API)
• Shared embeddings cache between Document Clustering and Topic Modeling
• Precomputed embeddings support for fit_hybrid_model() and fit_embedding_model()

UI/UX Improvements

• Removed GPU checkbox from Sentiment Analysis for consistency
• Streamlined provider selection for AI features
• Improved error messages for missing prerequisites

Lexical Analysis Enhancements

• Log odds ratio analysis for categorical word frequency comparisons
• Lexical dispersion plots showing term distribution across corpus
• Dispersion metrics quantifying how evenly terms spread across documents

Semantic Analysis Enhancements

• Neural sentiment analysis via transformers (DistilBERT, RoBERTa)
• Network node attribute controls (size by degree/betweenness/frequency)
• Node color options (community detection/frequency gradient)

NLP Integration

• spaCy: POS tagging, NER, lemmatization, dependency parsing
• Morphological analysis
• Sentence transformers for document embeddings

AI Integration

• Multi-provider: OpenAI, Gemini, Ollama (local)
• Topic-grounded content generation
• RAG search over document corpus
• Responsible AI design

Accessibility

• WCAG 2.1 Level AA compliant
• Dark mode, keyboard navigation, screen reader support
• Multi-language support

Security

• Rate limiting, input validation, API key protection

TextAnalysisR 0.0.2 (2024-12-05)

• Improved documentation
• Enhanced DESCRIPTION metadata
• CRAN policy compliance updates

TextAnalysisR 0.0.1 (2023-10-18)

• Initial CRAN release
• Core text mining functionality
• STM topic modeling
• Text preprocessing capabilities