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topicwizard -- a Modern, Model-agnostic Framework for Topic Model Visualization and Interpretation

Márton Kardos, Kenneth Enevoldsen, Kristoffer Laigaard Nielbo · 2025 · 1 citationsRead the paper

Topic models are statistical tools that allow their users to gain qualitative and quantitative insights into the contents of textual corpora without the need for close reading. They can be applied in a wide range of settings from discourse analysis, through pretraining data curation, to text filtering. Topic models are typically parameter-rich, complex models, and interpreting these parameters can be challenging for their users. It is typical practice for users to interpret topics based on the top 10 highest ranking terms on a given topic. This list-of-words approach, however, gives users a limited and biased picture of the content of topics. Thoughtful user interface design and visualizations can help users gain a more complete and accurate understanding of topic models' output. While some visualization utilities do exist for topic models, these are typically limited to a certain type of topic model. We introduce topicwizard, a framework for model-agnostic topic model interpretation, that provides intuitive and interactive tools that help users examine the complex semantic relations between documents, words and topics learned by topic models.

What the full text shows

Deployed in practice
  • The framework is model-agnostic and compatible with scikit-learn API libraries, Gensim, and BERTopic.
  • The software package has been adopted by practitioners. — >45,000 downloads from PyPI
  • Inter-topic maps use UMAP for projections to better capture local structure compared to PCA.
Setup
The framework was tested using KeyNMF for visualization production.
How
The authors developed a visualization framework that maps the three-way relationship between words, documents, and topics using an inter-topic map, topic-word plots, and wordclouds. It implements a specific topic importance metric based on the document-topic matrix and corpus size.
Limitations
No support for dynamic, hierarchical, or supervised topic models. · No utilities for comparing outputs from different topic models. · Certain visualizations (e.g., concept compasses) may have limited utility for clustering-based models.

Summarized by Gemma 4 from the open-access full text · 17 Oct 2026. Read it