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Data modeling

About: Data modeling is a(n) research topic. Over the lifetime, 29624 publication(s) have been published within this topic receiving 470187 citation(s).

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Papers
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Book
Peter P. Chen1Institutions (1)
17 Oct 2013-
TL;DR: A data model, called the entity-relationship model, is proposed that incorporates some of the important semantic information about the real world and can be used as a basis for unification of different views of data: the network model, the relational model, and the entity set model.

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Abstract: A data model, called the entity-relationship model, is proposed. This model incorporates some of the important semantic information in the real world. A special diagramatic technique is introduced as a tool for data base design. An example of data base design and description using the model and the diagramatic technique is given. Some implications on data integrity, information retrieval, and data manipulation are discussed.The entity-relationship model can be used as a basis for unification of different views of data: the network model, the relational model, and the entity set model. Semantic ambiguities in these models are analyzed. Possible ways to derive their views of data from the entity-relationship model are presented.

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5,871 citations


Book
Ramez Elmasri1, Shamkant B. Navathe2Institutions (2)
01 Jan 1989-
TL;DR: Fundamentals of Database Systems combines clear explanations of theory and design, broad coverage of models and real systems, and excellent examples with up-to-date introductions to modern database technologies.

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Abstract: From the Publisher: Fundamentals of Database Systems combines clear explanations of theory and design, broad coverage of models and real systems, and excellent examples with up-to-date introductions to modern database technologies. This edition is completely revised and updated, and reflects the latest trends in technological and application development. Professors Elmasri and Navathe focus on the relational model and include coverage of recent object-oriented developments. They also address advanced modeling and system enhancements in the areas of active databases, temporal and spatial databases, and multimedia information systems. This edition also surveys the latest application areas of data warehousing, data mining, web databases, digital libraries, GIS, and genome databases. New to the Third Edition Reorganized material on data modeling to clearly separate entity relationship modeling, extended entity relationship modeling, and object-oriented modeling Expanded coverage of the object-oriented and object/relational approach to data management, including ODMG and SQL3 Uses examples from real database systems including OracleTM and Microsoft AccessAE Includes discussion of decision support applications of data warehousing and data mining, as well as emerging technologies of web databases, multimedia, and mobile databases Covers advanced modeling in the areas of active, temporal, and spatial databases Provides coverage of issues of physical database tuning Discusses current database application areas of GIS, genome, and digital libraries

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4,212 citations


Journal ArticleDOI
TL;DR: IMOD is useful for studying and modeling data from tomographic, serial section, and optical section reconstructions and allows image data to be visualized by several different methods.

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Abstract: We have developed a computer software package, IMOD, as a tool for analyzing and viewing three-dimensional biological image data. IMOD is useful for studying and modeling data from tomographic, serial section, and optical section reconstructions. The software allows image data to be visualized by several different methods. Models of the image data can be visualized by volume or contour surface rendering and can yield quantitative information.

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4,054 citations


Book
01 Jan 1998-
TL;DR: This paper aims to provide a history of fuzzy logic in information handling and geostatistics and some of the techniques used to deal with fuzzy logic problems.

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Abstract: 1. Geographical Information: Society, Science, and Systems 2. Data models and axioms: Formal abstractions of reality 3. Geographical Data in the Computer 4. Data input, verification, storage and output 5. Creating continuous surfaces from point data 6. Optimal interpolation using geostatistics 7. The analysis of discrete entities in space 8. Spatial analysis using continuous fields 9. Errors and quality control 10. Error propagation in numerical modelling 11. Fuzzy sets and fuzzy geographical objects 12. Current issues and trends in GIS APPENDIX 1 GLOSSARY OF TERMS APPENDIX 2 A SELECTION OF WORLD WIDE WEB GEOGRAPHY AND GIS SERVERS APPENDIX 3 EXAMPLE DATA SETS

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3,773 citations


Proceedings ArticleDOI
Peter P. Chen1Institutions (1)
22 Sep 1975-
TL;DR: A data model, called the entity-relationship model, which incorporates the semantic information in the real world is proposed, and a special diagramatic technique is introduced for exhibiting entities and relationships.

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Abstract: A data model, called the entity-relationship model, is proposed. This model incorporates some of the important semantic information about the real world. A special diagrammatic technique is introduced as a tool for database design. An example of database design and description using the model and the diagrammatic technique is given. Some implications for data integrity, information retrieval, and data manipulation are discussed.The entity-relationship model can be used as a basis for unification of different views of data: the network model, the relational model, and the entity set model. Semantic ambiguities in these models are analyzed. Possible ways to derive their views of data from the entity-relationship model are presented.

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3,690 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202227
20212,116
20202,034
20191,550
20182,042
20172,086

Top Attributes

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Topic's top 5 most impactful authors

Zongmin Ma

23 papers, 304 citations

Nizar Bouguila

21 papers, 461 citations

Christian S. Jensen

17 papers, 1.4K citations

Elisa Bertino

13 papers, 459 citations

Torben Bach Pedersen

12 papers, 638 citations