{"title":"格式模型:一种数据库组织理论","authors":"R. Hull, C. Yap","doi":"10.1145/588111.588146","DOIUrl":null,"url":null,"abstract":"A new theory of data representation involving \"formats\", which are based on three recurrent and prominent data-structuring concepts, is introduced. In a mathematically rigorous way, a notion of \"equivalent\" information capacity is defined and shown to be natural in a wide range of contexts. A normal form is introduced, and each equivalence class of formats is shown to have a unique representative in normal form. Finally, a natural way of comparing the information capacity of (non-equivalent) formats is formalized and studied.","PeriodicalId":126896,"journal":{"name":"Proceedings of the 1st ACM SIGACT-SIGMOD symposium on Principles of database systems","volume":"16 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1982-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"179","resultStr":"{\"title\":\"The format model: a theory of database organization\",\"authors\":\"R. Hull, C. Yap\",\"doi\":\"10.1145/588111.588146\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A new theory of data representation involving \\\"formats\\\", which are based on three recurrent and prominent data-structuring concepts, is introduced. In a mathematically rigorous way, a notion of \\\"equivalent\\\" information capacity is defined and shown to be natural in a wide range of contexts. A normal form is introduced, and each equivalence class of formats is shown to have a unique representative in normal form. Finally, a natural way of comparing the information capacity of (non-equivalent) formats is formalized and studied.\",\"PeriodicalId\":126896,\"journal\":{\"name\":\"Proceedings of the 1st ACM SIGACT-SIGMOD symposium on Principles of database systems\",\"volume\":\"16 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1982-03-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"179\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of the 1st ACM SIGACT-SIGMOD symposium on Principles of database systems\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1145/588111.588146\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the 1st ACM SIGACT-SIGMOD symposium on Principles of database systems","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1145/588111.588146","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The format model: a theory of database organization
A new theory of data representation involving "formats", which are based on three recurrent and prominent data-structuring concepts, is introduced. In a mathematically rigorous way, a notion of "equivalent" information capacity is defined and shown to be natural in a wide range of contexts. A normal form is introduced, and each equivalence class of formats is shown to have a unique representative in normal form. Finally, a natural way of comparing the information capacity of (non-equivalent) formats is formalized and studied.
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