學術產出-期刊論文
| 題名 | A note on “Incomplete relational database models based on intervals” |
| 作者 | 陳良弼 Chiu,Jui-Shang;Chen,Arbee L.P. |
| 貢獻者 | 資科系 |
| 關鍵詞 | Incomplete information;disjunctive information;null values;extended relational model;extended relational algebra |
| 日期 | 1996-02 |
| 上傳時間 | 21-八月-2014 15:01:18 (UTC+8) |
| 摘要 | For original paper, see A. Ola and G. Ozsoyoglu, ibid., vol. 5, no. 2, pp. 293-308 (1993). In that paper, a family of relational database models (M-1 to M-5) were proposed to represent unknown values by intervals. Relational operators were extended for evaluating queries on these models. In this paper, we stultify the theorems, claiming that query evaluation in models M-2, M-3 and M-5 is sound |
| 關聯 | IEEE Transactions on Knowledge and Data Engineering (EI,SCI),189-191 |
| 資料類型 | article |
| dc.contributor | 資科系 | en_US |
| dc.creator (作者) | 陳良弼 | zh_TW |
| dc.creator (作者) | Chiu,Jui-Shang;Chen,Arbee L.P. | en_US |
| dc.date (日期) | 1996-02 | en_US |
| dc.date.accessioned | 21-八月-2014 15:01:18 (UTC+8) | - |
| dc.date.available | 21-八月-2014 15:01:18 (UTC+8) | - |
| dc.date.issued (上傳時間) | 21-八月-2014 15:01:18 (UTC+8) | - |
| dc.identifier.uri (URI) | http://nccur.lib.nccu.edu.tw/handle/140.119/69143 | - |
| dc.description.abstract (摘要) | For original paper, see A. Ola and G. Ozsoyoglu, ibid., vol. 5, no. 2, pp. 293-308 (1993). In that paper, a family of relational database models (M-1 to M-5) were proposed to represent unknown values by intervals. Relational operators were extended for evaluating queries on these models. In this paper, we stultify the theorems, claiming that query evaluation in models M-2, M-3 and M-5 is sound | en_US |
| dc.format.extent | 269970 bytes | - |
| dc.format.mimetype | application/pdf | - |
| dc.language.iso | en_US | - |
| dc.relation (關聯) | IEEE Transactions on Knowledge and Data Engineering (EI,SCI),189-191 | en_US |
| dc.subject (關鍵詞) | Incomplete information;disjunctive information;null values;extended relational model;extended relational algebra | en_US |
| dc.title (題名) | A note on “Incomplete relational database models based on intervals” | en_US |
| dc.type (資料類型) | article | en |