Refining Topic Representations via Informativeness and Redundancy Analysis

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Solution Overview

Problem

Topic models often generate uninformative, inconsistent, or redundant topics, making it difficult for users to effectively organize and search through vast amounts of information, leading to inefficient use of computer resources.

Innovation Solution

A method that refines topic representations by performing informativeness, consistency, and redundancy analyses on original topic representations, generating a refined representation that filters out uninformative and redundant topics, ensuring informative and consistent results.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If topic models automatically discover latent topics from text documents, then the organization of document corpus is improved, but the topics generated are often uninformative, inconsistent, or redundant

Engineering Contradiction:
Improveorganization of document corpusVSAvoiduninformative topics
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

The system performs preliminary actions by conducting informativeness analysis, consistency analysis, and redundancy analysis on the original topic representations before finalizing the topic model output. These analyses are performed in advance to identify and filter out uninformative, inconsistent, and redundant topics, ensuring that only high-quality topics are presented to users for organizing the document corpus.

Inventive Principle:
Principle #10Preliminary action

2Ease of operation

If topic models generate topics from large document corpus, then information organization is improved, but computational resources are inefficiently used

Engineering Contradiction:
Improveinformation organizationVSAvoidcomputational resources
Core Design Contradiction:
Ease of operationVSUse of energy by moving object

Solution Approach 1:

The system extracts and removes uninformative, inconsistent, and redundant topics from the original topic representations through dedicated analysis modules. By taking out these low-quality topics before presentation, the system reduces the amount of information users need to process, thereby improving information organization efficiency while reducing the computational resources required for navigation and search operations.

Inventive Principle:
Principle #2Taking out (Extraction)

3Speed

If original topic representations are used directly, then processing speed is maintained, but topic quality is poor with uninformative and redundant content

Engineering Contradiction:
Improveprocessing speedVSAvoidtopic quality
Core Design Contradiction:
SpeedVSManufacturing precision

Solution Approach 1:

The system performs preliminary quality assessments through informativeness analysis, consistency analysis, and redundancy analysis on original topic representations. These analyses identify topics that meet quality thresholds, allowing the system to maintain processing speed by pre-filtering topics before they are presented to users, thus ensuring high topic quality without significantly impacting processing speed.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS10146874B2Refining topic representations
Publication Date: 2018.12.04 FUJITSU LTD
  • US10146874B2 patent drawing
  • US10146874B2 patent drawing
  • US10146874B2 patent drawing

AI summary

A method to refine topic representations is described. The method may include identifying an original topic representation for a set of electronic documents stored at least temporarily in a non-transitory storage media. The method may include performing, by a processor, an informativeness analysis on the original topic representation. The method may also include performing a topic consistency analysis on the original topic representation. The method may include performing a topic redundancy analysis on the original topic representation in view of a second topic representation. The method may also include generating a refined topic representation based on the informativeness analysis, the consistency analysis and the redundancy analysis.