Cross-Language Knowledge Search via Semantic Role Analysis

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Solution Overview

Problem

Existing natural language processing systems face difficulties in performing deep linguistic and semantic analysis of user queries, leading to inadequate results and inefficiencies in cross-language knowledge search and extraction, as they often rely on simple keyword translation and lack robust semantic comparison.

Innovation Solution

A system that employs a Semantic Analyzer for semantically analyzing user requests and documents, using an expanded subject-action-object format (eSAO) and linguistic knowledge base for part-of-speech tagging, parsing, and semantic analysis, which preserves lexical and grammatical characteristics to build search patterns and indexes, enabling accurate translation and cross-language knowledge retrieval.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If simple keyword translation is used for cross-language search, then the system complexity is reduced, but the measurement precision of semantic comparison deteriorates

Engineering Contradiction:
Improvesystem complexityVSAvoidsemantic comparison precision
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The patent segments the search process into distinct stages: keyword extraction, semantic role assignment, and structured pattern matching. By dividing the complex semantic analysis into manageable components (subjects, actions, objects, attributes), the system achieves precise cross-language comparison without requiring overly complex overall architecture

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary semantic structure (eSAO - expanded subject-action-object format) that acts as a bridge between different languages. This intermediate representation preserves lexical and grammatical characteristics while enabling accurate translation and comparison across languages without direct complex language-to-language mapping

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If deep linguistic and semantic analysis is performed on user queries, then the measurement precision of knowledge extraction is improved, but the processing time increases

Engineering Contradiction:
Improveknowledge extraction precisionVSAvoidprocessing time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent performs preliminary part-of-speech tagging and semantic role assignment on both user queries and document corpus before the actual search process. This preprocessing creates ready-to-use semantic structures that accelerate the subsequent search and matching operations, reducing processing time during query execution

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent applies different levels of analysis depth to different parts of the query and document processing. Critical semantic elements (subjects, actions, objects) receive deep linguistic analysis while less important elements use simpler processing, optimizing the balance between precision and processing time

Inventive Principle:
Principle #3Local quality

3Reliability

If robust semantic comparison is implemented for cross-language search, then the reliability of knowledge retrieval is improved, but the device complexity increases

Engineering Contradiction:
Improveknowledge retrieval reliabilityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent creates a universal semantic framework (eSAO structure) that handles multiple languages and search types through a single unified system. This multi-functional approach improves retrieval reliability across different languages while avoiding the complexity of separate specialized systems for each language or search type

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS7672831B2System and method for cross-language knowledge searching
Publication Date: 2010.03.02 ALLIUM US HOLDING LLC
  • US7672831B2 patent drawing
  • US7672831B2 patent drawing
  • US7672831B2 patent drawing

AI summary

A system and method for cross-language knowledge searching. The system has a Semantic Analyzer, a natural language user request/document search pattern/semantic index Generator, a user request search pattern Translator and a Knowledge Base Searcher. The system also provides automatic semantic analysis and semantic indexing of natural language user requests/documents on knowledge recognition and cross-language relevant to user request knowledge extraction/searching. System functionality is ensured by Linguistic Knowledge Base as well as by a number of unique bilingual dictionaries of concepts/objects and actions.