Latent Semantic Clustering for Adaptive Document Organization

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Solution Overview

Problem

Current automated document classification systems are inflexible and unable to adapt to new information patterns, requiring pre-determined classification schemes that fail to accommodate changing entities and contexts, leading to inefficiencies in organizing and analyzing large volumes of documents.

Innovation Solution

An automated classification system that learns patterns in an unsupervised fashion by generating document representations in an abstract mathematical space, identifying clusters based on conceptual similarity and dissimilarity, and organizing documents into non-intersecting clusters without requiring the specification of cluster numbers, using techniques like Latent Semantic Indexing (LSI) for efficient indexing and clustering.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a pre-determined classification scheme is used, then the classification system is simple and easy to implement, but it cannot adapt to new information patterns and changing entities

Engineering Contradiction:
Improveadaptability to new information patternsVSAvoidcomplexity of classification system
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The classification system performs self-learning by automatically analyzing document patterns and constructing classification schemes without human intervention. The system processes documents, identifies patterns, and organizes them into categories autonomously, eliminating the need for pre-determined schemes while maintaining systematic organization.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system dynamically adjusts classification parameters based on the content and patterns found in documents. Instead of using fixed classification criteria, the system adapts its categorization parameters to match the specific information patterns detected in the document collection, enabling flexibility without requiring complex manual reconfiguration.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If documents are organized into clusters based on conceptual similarity, then the organization is comprehensive and adaptive, but the computational complexity increases due to similarity calculations

Engineering Contradiction:
Improvecomprehensive organization capabilityVSAvoidcomputational complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system segments the document collection into distinct conceptual clusters based on similarity patterns. By dividing documents into manageable groups that share common characteristics, the system reduces the complexity of processing the entire collection at once while maintaining comprehensive organization through hierarchical clustering.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system transforms document relationships from a two-dimensional matrix of pairwise similarities into a multi-dimensional conceptual space. This dimensional transformation allows for more efficient representation and processing of document relationships, reducing computational complexity while enabling comprehensive pattern recognition.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Measurement precision

If the system processes large volumes of documents, then the classification becomes more accurate and comprehensive, but the processing time and computational resources increase

Engineering Contradiction:
Improveclassification accuracyVSAvoidprocessing time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system applies partial processing by focusing computational resources on the most significant document patterns and relationships rather than uniformly processing all documents. This selective approach maintains high classification accuracy for the most important documents while reducing overall processing time through prioritized processing strategies.

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS7844566B2Latent semantic clustering
Publication Date: 2010.11.30 RELATIVITY ODA LLC
  • US7844566B2 patent drawing
  • US7844566B2 patent drawing
  • US7844566B2 patent drawing

AI summary

An embodiment of the present invention provides a computer-based method for automatically identifying clusters of conceptually-related documents in a collection of documents, including the following steps: generating a document-representation of each document in an abstract mathematical space; identifying a plurality of document clusters in the collection of documents based on a conceptual similarity between respective pairs of the document-representations, wherein each document cluster is associated with an exemplary document and a plurality of other documents; and identifying a non-intersecting document cluster from among the plurality of document clusters based on (i) a conceptual similarity between the document-representation of the exemplary document and the document-representation of each document in the non-intersecting cluster and (ii) a conceptual dissimilarity between a cluster-representation of the non-intersecting document cluster and a cluster-representation of each other document cluster. Variants of the method enable creating hierarchy of clusters and conducting incremental updates of preexisting hierarchical structures.