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DDC
| 510 | |
Tác giả CN
| Nguyen Hoa | |
Nhan đề
| A Probabilistic Relational Database Model And Algebra / Nguyen Hoa | |
Mô tả vật lý
| 17 p. | |
Tóm tắt
| This paper introduces a probabilistic relational database model, called PRDB, forrepresenting and querying uncertain information of objects in practice. To develop the PRDB model,first, we represent the relational attribute value as a pair of probabilistic distributions on a set formodeling the possibility that the attribute can take one of the values of the set with a probabilitybelonging to the interval which is inferred from the pair of probabilistic distributions. Next, onthe basis representing such attribute values, we formally define the notions as the schema, relation,probabilistic functional dependency and probabilistic relational algebraic operations for PRDB.In addition, a set of the properties of the probabilistic relational algebraic operations in PRDB also are formulated and proven. | |
Từ khóa tự do
| Probability distribution | |
Từ khóa tự do
| Pprobabilistic relational algebraic operation | |
Từ khóa tự do
| Probabilistic functional dependency | |
Từ khóa tự do
| Probabilistic relation | |
Từ khóa tự do
| Probabilistic triple | |
Nguồn trích
| Tạp chí Tin học và Điều khiển học = Journal of Computer Science And Cybernetics 2015P. 305-321
Số: 31
Tập: 4 |
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000
| 00000nab#a2200000ui#4500 |
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| 001 | 21984 |
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| 002 | 9 |
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| 004 | DC10AA07-73CD-40A7-911D-753700C3DE51 |
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| 005 | 202006302004 |
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| 008 | 081223s vm| vie |
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| 009 | 1 0 |
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| 039 | |y20200630200414|zthaopt |
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| 082 | |a510 |
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| 100 | |aNguyen Hoa |
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| 245 | |aA Probabilistic Relational Database Model And Algebra / |cNguyen Hoa |
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| 300 | |a17 p. |
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| 520 | |aThis paper introduces a probabilistic relational database model, called PRDB, forrepresenting and querying uncertain information of objects in practice. To develop the PRDB model,first, we represent the relational attribute value as a pair of probabilistic distributions on a set formodeling the possibility that the attribute can take one of the values of the set with a probabilitybelonging to the interval which is inferred from the pair of probabilistic distributions. Next, onthe basis representing such attribute values, we formally define the notions as the schema, relation,probabilistic functional dependency and probabilistic relational algebraic operations for PRDB.In addition, a set of the properties of the probabilistic relational algebraic operations in PRDB also are formulated and proven. |
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| 653 | |aProbability distribution |
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| 653 | |aPprobabilistic relational algebraic operation |
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| 653 | |aProbabilistic functional dependency |
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| 653 | |aProbabilistic relation |
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| 653 | |aProbabilistic triple |
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| 773 | |tTạp chí Tin học và Điều khiển học = Journal of Computer Science And Cybernetics |d2015|gP. 305-321|v4|i31 |
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| 890 | |c1|a0|b0|d7 |
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