A new normal form for nested relations
ACM Transactions on Database Systems (TODS)
The design of ¬ 1NF relational databases into nested normal form
SIGMOD '87 Proceedings of the 1987 ACM SIGMOD international conference on Management of data
A query language and optimization techniques for unstructured data
SIGMOD '96 Proceedings of the 1996 ACM SIGMOD international conference on Management of data
A query language for a Web-site management system
ACM SIGMOD Record
Lore: a database management system for semistructured data
ACM SIGMOD Record
World Wide Web Journal - Special issue on XML: principles, tools, and techniques
An improved third normal form for relational databases
ACM Transactions on Database Systems (TODS)
Synthesizing third normal form relations from functional dependencies
ACM Transactions on Database Systems (TODS)
Principles of Database Systems
Principles of Database Systems
Representative Objects: Concise Representations of Semistructured, Hierarchial Data
ICDE '97 Proceedings of the Thirteenth International Conference on Data Engineering
Object Exchange Across Heterogeneous Information Sources
ICDE '95 Proceedings of the Eleventh International Conference on Data Engineering
Adding Structure to Unstructured Data
ICDT '97 Proceedings of the 6th International Conference on Database Theory
DataGuides: Enabling Query Formulation and Optimization in Semistructured Databases
VLDB '97 Proceedings of the 23rd International Conference on Very Large Data Bases
A Normal Form For Entity-Relationship Diagrams
Proceedings of the Fourth International Conference on Entity-Relationship Approach
Theory of Relational Databases
Theory of Relational Databases
A consideration on normal form of not-necessarily-normalized relation in the relational data model
VLDB '77 Proceedings of the third international conference on Very large data bases - Volume 3
Designing Semistructured Databases: A Conceptual Approach
DEXA '01 Proceedings of the 12th International Conference on Database and Expert Systems Applications
Formal Framework of XML Document Schema Design
International Journal of Information Retrieval Research
XML Documents Normalization Using GN-DTD
International Journal of Information Retrieval Research
| Hi-index | 0.00 |
Semi-structured data has become prevalent with the growth of the Internet and other on-line information repositories. Many organizational databases are presented on the web as semi-structured data. Designing a "good" semi-structured database is increasingly crucial to prevent data redundancy, inconsistency and updating anomalies. In this paper, we define a semi-structured schema graph and identify the various anomalies that may occur in the graph. A normal form for semi-structured schema graph, S3-NF, is proposed. We present two approaches to design S3-NF database, namely, restructuring by decomposition and the ER approach. The first approach consists of a set of rules to decompose a semi-structured schema graph into S3-NF. The second approach uses the ER model to remove anomalies at the semantic level.