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Concept Based Search

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An introduction to Concept based Search Technology

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Concept Based Search SySearch vs. Traditional Search Simplified Version for External Yu Wang, Engineering Manager
Agenda ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
SySearch vs. Traditional Search ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],A user receives an e-mail message that says: Following the incident close to Watford railway station in July, we need to assess the damage being done by tree branches tangling in overhead power lines or falling onto the tracks. The user then wants to locate documents matching the e-mail message.
Agenda ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Information Retrieval ,[object Object],[object Object],[object Object],[object Object]
IR Model, Key Metrics and Core Technologies User Query Query Rep. {Term} Document Rep. {Index, Term} Original Documents Relevance Ranking ,[object Object],[object Object]
Relevance Ranking: Traditional ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Relevance Ranking: SySearch ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Example: Relevance Ranking (1) A user wants to find an article which introduces both apple and orange. He inputs query string {Apple, Orange} and the system found 2 match documents. Both documents contain both query terms, while in D1 Apple appears 3 times Orange and in D2 Apple appears equally to Orange in occurrence. Is D1 or D2 more relevant to user need? Query Terms {Apple, Orange} Apple Orange Relevance Ranking Search Server Document Server Apple… Orange… Apple… Apple… Apple… Orange… Apple Orange… D1 D2 D1 Apple: Orange=3:1 D2 Apple: Orange=1:1 D1>D2? D2>D1?
Example: Relevance Ranking (2) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Bayesian Probability (Simplified) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Boolean Model
Agenda ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
SySearch Functional Architecture SySearch Web GUI/API System Administration Security/CSI Event Framework Log Management Category Document Group Meta-Data Scheduler Query Bayesian Engine Augmentation Expansion FS DB EM Document Import Document Filtering Content Add-on Meta-data Parser Text Processing Term Lexicon Index MPF Index Meta-data Index Term Index FS MPF Index Meta-data Index Term Index DB
SySearch Functionalities ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
SySearch Functionalities ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Distributed SySearch Deployment
Q&A

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Concept Based Search

  • 1. Concept Based Search SySearch vs. Traditional Search Simplified Version for External Yu Wang, Engineering Manager
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  • 9. Example: Relevance Ranking (1) A user wants to find an article which introduces both apple and orange. He inputs query string {Apple, Orange} and the system found 2 match documents. Both documents contain both query terms, while in D1 Apple appears 3 times Orange and in D2 Apple appears equally to Orange in occurrence. Is D1 or D2 more relevant to user need? Query Terms {Apple, Orange} Apple Orange Relevance Ranking Search Server Document Server Apple… Orange… Apple… Apple… Apple… Orange… Apple Orange… D1 D2 D1 Apple: Orange=3:1 D2 Apple: Orange=1:1 D1>D2? D2>D1?
  • 10.
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  • 12. SySearch Functional Architecture SySearch Web GUI/API System Administration Security/CSI Event Framework Log Management Category Document Group Meta-Data Scheduler Query Bayesian Engine Augmentation Expansion FS DB EM Document Import Document Filtering Content Add-on Meta-data Parser Text Processing Term Lexicon Index MPF Index Meta-data Index Term Index FS MPF Index Meta-data Index Term Index DB
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  • 16. Q&A