'Boolean query' diaporamas de présentation

CS246

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INF 2914 Information Retrieval and Web Search

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Web Search

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Web Search and Text Mining

Web Search and Text Mining. Lecture 3. Outline. Distributed programming: MapReduce Distributed indexing Several other examples using MapReduce Zones in documents Simple scoring Term weighting. Distributed Programming. Many tasks: Process lots of data to produce other data

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Information Retrieval

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Ranking by Relevance and/or Similarity in HunCRIS

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Query Models

Query Models. Use Types What do search engines do. What we have covered. What is IR Evaluation Tokenization and properties of text Web crawling This time Query models. Index. Query Engine. Interface. Indexer. Users. Crawler. Web. A Typical Web Search Engine. Queries. Index.

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Query Optimization by Genetic Algorithms

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Jimmy Lin The iSchool University of Maryland Monday, February 11, 2008

Cloud Computing Lecture #5 IR with MapReduce. Jimmy Lin The iSchool University of Maryland Monday, February 11, 2008. Thanks to Doug Oard for some of these slides.

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Parametric search and zone weighting

Parametric search and zone weighting. Lecture 6. Recap of lecture 4. Query expansion Index construction. This lecture. Parametric and field searches Zones in documents Scoring documents: zone weighting Index support for scoring. Parametric search.

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CSA3080: Adaptive Hypertext Systems I

CSA3080: Adaptive Hypertext Systems I. Lecture 5: Information Retrieval I. Dr. Christopher Staff Department of Computer Science & AI University of Malta. Aims and Objectives. Aims and objectives of IR Boolean, Extended Boolean, Statistical Models. Aims and Objectives.

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CSA3080: Adaptive Hypertext Systems I

CSA3080: Adaptive Hypertext Systems I. Lecture 5: Information Retrieval I. Dr. Christopher Staff Department of Computer Science & AI University of Malta. Aims and Objectives. Aims and objectives of IR Boolean, Extended Boolean, Statistical Models. Aims and Objectives.

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VHL Integrated Search

VHL Integrated Search. New search engine. Current State. Meta-engine performs search on distributed information sources User must select an information source = several steps to access information Each information source has its own presentation format and search interface

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