• Changelog:

  New Analyses

  SVO Triplets (Subject-Verb-Object)

  • New analysis for extracting subject-verb-object triplets from the dependency
    tree
  • C++ backend (extract_svo.cpp) for high performance
  • Dedicated UI under Documents with Run/Export/Report, results table, Info &
    References, TALL AI
  • Exported R function: extract_svo_triplets()

  Syntactic Complexity

  • New document-level syntactic complexity analysis based on dependency parsing
  • C++ backend (syntactic_complexity.cpp) for computing syntactic metrics
  • Dedicated UI under Documents with Run/Export/Report, results table, Info &
    References, TALL AI
  • Exported R function: compute_syntactic_complexity()

  Emotion Analysis (NRC EmoLex)

  • New emotion analysis based on the NRC Word-Emotion Association Lexicon
  • Detection of 8 emotions: anger, anticipation, disgust, fear, joy, sadness,
    surprise, trust
  • Core functions: emotionAnalysis(), emotionBarChart(), emotionWordPlot(),
    emotionHeatmap()
  • loadEmotionLexicon() for loading NRC data (English: mapped via Italian
    lexicon's English Word column)
  • Dedicated UI with 6 tabs: Emotion Distribution, Top Words by Emotion, Document
    Heatmap, Table, Info & References, TALL AI
  • PNG export and Excel report integrated
  • Gemini AI integration across all 5 switch points

  Noun Phrase Extraction

  • Noun phrase extraction via dependency tree
  • C++ backend (extract_np.cpp)
  • Exported R function: extract_noun_phrases()

  ---

  Topic Modeling (major enhancement)

  • CTM (Correlated Topic Model) and STM (Structural Topic Model) added as new
    methods
  • STM prevalence covariates with effect plots and regression coefficients
  • Model diagnostics tab: coherence, exclusivity, log-likelihood
  • Multi-metric comparison plot and consensus K recommendation
  • Estimated K automatically transferred to the model estimation panel

  ---

  Image Export System (complete rewrite)

  • Rewrite of plot2png() with DPI-aware rendering (biblioshiny approach)
  • Graph export settings: export/report DPI, height, aspect ratio
  • Persistent settings, temporary file cleanup
  • JavaScript canvas capture for visNetwork

  ---

  Homepage & References

  • Complete homepage redesign in biblioshiny style
  • Updated citation to the SoftwareX paper (Aria et al., 2026)
  • Added open-access paper and supplementary material links

  ---

  Settings & UI

  • Added icons to all tab panels across the app
  • Added colored boxes next to hex color codes in Thematic Map tables
  • Fixed Reinert/CA dendrogram "Words in Context" error (uninitialized variable)
  • Fixed Import tab: table disappearing after Remove, "Back to original text", dfTag sync
  • Fixed Topic Modeling estimation error without options and conditional arrow buttons
  • Fixed report items overlapping with box title
  • Fixed Similarity page margins and Embedding distribution spacing
  • Fixed Supervised Classification header formatting
  • Moved Info & References to last tab in Thematic Map and Similarity
  • Removed "in TALL" from all Info & References section titles
  • Updated KWIC Info styling and added Dependency reference in Word Network info
  • Added morphological features stats to Overview report export
  • Added PoS selection guidance in Overview Frequency options
  • Updated Custom PoS List template and docs to clarify any custom tag is allowed
  • Improved working folder selector with visual feedback
  • Reorganized settings layout (2x2 grid)
  • Time variable aggregation for Date types (day/week/month/quarter/year)

  ---

  Dependency Parsing Features

  • Dependency-based word network as an alternative to co-occurrence
  • Configurable dependency relation filters (all/noun_mod/SVO/custom)

  ---

  Architectural Refactoring

  • Split tallFunctions.R into 10 thematic modules:
    tallSentiment.R, tallNetwork.R, tallTopicModel.R, tallEmbeddings.R,
    tallOverview.R, tallUtils.R, tallVisualization.R, tallTextIO.R, tallNLP.R,
    tallReport.R, tallLanguages.R
  • Extracted static CSS into www/tall-static.css
  • Added www/tall-handlers.js for JavaScript handlers
  • Modernized icons (migrated to FontAwesome 6)
  • Cleaned up NAMESPACE (removed unnecessary exports)
  • Added test suite: test-calculate_ngram_is.R, test-process_multiwords.R,
    test-reinert.R, test-txt_recode_fast.R
  • Added stm dependency to DESCRIPTION

  ---

  Code Quality

  • Propagated random seed to all analyses (topic models, networks, wordclouds,
    sampling)
  • Default community detection switched from walktrap to louvain
  • Removed deprecated Grako module
  • Renamed "Co-Word Analysis" to "Word Network Analysis"
  • Updated all Info & References sections
  • Removed legacy code from tallEmbeddings.R and words.R (~1,160 lines removed)

  ---

  Bug Fixes

  • Fixed KWIC on filtered collections
  • Fixed overview with filtered corpus
  • Fixed group handling in filters_groups.R
  • Minor fixes in import, edit, settings, collocation

• New Features & UI/UX Improvements

  • Added "Add to Report" and "Export Images" buttons to Overview module
  • Added "Add to Report" and "Export Images" buttons to Keyness Analysis module
  • Added "Add to Report" and "Export" buttons to KWIC Network Analysis
  • Improved table layout and aesthetics across multiple modules

• Bug Fixes

  • Fixed issue in Edit -> Split functionality
  • Minor fixes in Import module and Settings

• Bug Fixes
  • Removed old Gemini models 1.5 and 2.0
  • Fixed issue in api key check
  • Fixed issue in synonims merging

• New Features & Modules
  -Supervised Classification
  -New Module: Implemented a full Supervised Classification interface within the "Documents" section.
  - Workflow: Added support for two analysis approaches: DTM (Document-Term Matrix) and Embeddings.

  • Keyness Analysis

    • Two-Corpus Comparison: Added a new approach to compare a target corpus against a reference corpus.
    • Lemma Analysis: Enabled lemma-based analysis for the two-corpus comparison approach.
    • PoS Inheritance: Implemented setting inheritance, allowing Keyness to use the selection made in the "PoS Tag Selection" menu.
    • Visualization: Added the Frequency Context Plot.

  • Multi-Word & Text Processing

    • Methodology: Implemented Morrone's IS index as a new method for automatic Multi-Word creation.
    • Synonyms: Added new functionalities for synonym merging.
    • Normalization: Added a "normalize tokens" option in the PoS tagging menu.

  • Feature Roles: Added a dedicated Feature Roles menu.

• Performance & Code Refactoring

  • C++ Optimization: Rewrote txt_recode and applyRake functions in C++, achieving an approximate 200x speed increase.
  • Modular Architecture: Refactored ui.R and server.R by restructuring menus into modules imported from external files.
  • Pre-Processing: Refactored the layout of the Special Entities menu.

• UI/UX & Visualization Improvements

  • Navigation & Layout
    • Settings Menu: Relocated from the sidebar to the top-right header for better accessibility.
    • Menu Structure: Added labels to separate menu sections; renamed "Custom Term List" to "Custom POS".
    • Aesthetics: Improved the styling of the dropdown options menu (matching Biblioshiny aesthetics).
    • Back to Top: Implemented a "Back to top" scroll button across all pages.
  • Page Layouts: Enhanced layouts for:
    • Welcome Page
    • Extractive Summarization
    • View Full Document modal
    • Team, Donation, and Credits tabs
    • PoS Tag List (in Selection Menu)

• Visualizations

  • Word Clouds: Implemented a new function to generate word clouds using ggplot2.
  • Correspondence Analysis: Added absolute contribution data to the plot tooltip.
  • Topic Modeling: Improved aesthetics and output for Topic Correlation.
  • Stats Box: Added a corpus size statistics box within the PoS Tag Selection menu.
  • DTformat: Added a parameter to toggle visibility between lemmas and tokens.

• Bug Fixes & Logic Updates

  • Split Logic: Fixed an issue where the split button removed the entire original document instead of just the split segment (corrected doc_id targeting).
  • Statistics: Corrected a calculation error in the Overview statistics.
  • Filters: Synchronized the effect of the Filters menu on the Feature Roles module.
  • Documentation: Added the official bibliographic reference to the CITATION file.

• Added AI assistant called TALL AI

Cran package