Topic generation device and topic generation method
The topic generation device improves topic quality by integrating metadata through a knowledge graph and clustering, addressing the limitations of existing methods in analyzing document relationships and metadata utilization.
JP2026091118APending Publication Date: 2026-06-03UNIV OF TSUKUBA +1
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- UNIV OF TSUKUBA
- Filing Date
- 2024-11-22
- Publication Date
- 2026-06-03
AI Technical Summary
Technical Problem
Existing topic generation methods, such as LDA and BERT, struggle to analyze the relationships between topics and metadata, failing to fully utilize the metadata attached to document data.
Method used
A topic generation device that utilizes metadata by generating a knowledge graph representing document relationships, combining text and metadata features, and clustering documents to improve topic quality.
Benefits of technology
Enhances topic quality by considering relationships between documents and metadata, resulting in higher coherence and better understanding of topic structures.
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Smart Images
Figure 2026091118000001_ABST
Abstract
Improve the quality of generated topics by utilizing metadata attached to document data. [Solution] The topic generation device (1) includes an acquisition unit (11) that acquires document data relating to multiple documents, a first feature generation unit (12) that generates first feature quantities for multiple documents, a knowledge graph generation unit (13) that generates a knowledge graph, a second feature generation unit (14) that generates second feature quantities for multiple documents based on the knowledge graph, a feature merging unit (15) that combines the first feature quantities and the second feature quantities to generate a first combined feature quantity, a clustering unit (16) that generates multiple document clusters, and a topic generation unit (17) that generates topics for multiple documents.
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