'Certain answers' presentation slideshows

Answering Queries Using Views: A Survey

Answering Queries Using Views: A Survey. Alon Y. Levy Presented by: Catharina Vijay. Motivation. Rewriting queries using views is important because of its relevance in the following areas: Query optimization Maintenance of physical data independence Data integration

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Progressing Supervision Throughout the Learning Cycle

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Data Exchange: Semantics and Query Answering

Data Exchange: Semantics and Query Answering. Ronald Fagin -- IBM Almaden Research Center Phokion G. Kolaitis -- UC Santa Cruz Renee J. Miller -- University of Toronto Lucian Popa -- IBM Almaden Research Center. IBM Almaden - November 12, 2002

436 views • 33 slides

CHAPTER 10: DATA WAREHOUSING & CACHING

CHAPTER 10: DATA WAREHOUSING & CACHING. PRINCIPLES OF DATA INTEGRATION. ANHAI DOAN ALON HALEVY ZACHARY IVES. Data Warehousing and Materialization. We have mostly focused on techniques for virtual data integration (see Ch. 1)

502 views • 32 slides

Querying Linked Geospatial Data with Incomplete Information

Querying Linked Geospatial Data with Incomplete Information. Charalampos Nikolaou Manolis Koubarakis charnik@di.uoa.gr koubarak@di.uoa.gr. Department of Informatics & Telecommunications National and Kapodistrian, University of Athens. Outline. Linked geospatial data (motivation)

433 views • 31 slides

RESEARCH METHODOLOGY

RESEARCH METHODOLOGY. (Business Research Methods). Week 10. Designing a Questionnaire. A survey is only as good as the questions it asks The underlying esearch problem and objectives must be clearly understood by the researchers

723 views • 16 slides

325 views • 15 slides