Representing and querying changes in semistructured data

Representing and querying changes in semistructured data (1998)

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by Sudarshan S. Chawathe , Serge Abiteboul , Jennifer Widom

Venue:	In Proceedings of the International Conference on Data Engineering
Citations:	77 - 10 self

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Datum	Value	Source
TITLE	Representing and querying changes in semistructured data	INFERENCE
AUTHOR NAME	Sudarshan S. Chawathe	SVM HeaderParse 0.2
AUTHOR AFFIL	Computer Science Department, Stanford University, Stanford	SVM HeaderParse 0.2
AUTHOR ADDR	California 94305	SVM HeaderParse 0.2
AUTHOR NAME	Serge Abiteboul	SVM HeaderParse 0.2
AUTHOR AFFIL	Computer Science Department, Stanford University, Stanford	SVM HeaderParse 0.2
AUTHOR ADDR	California 94305	SVM HeaderParse 0.2
AUTHOR NAME	Jennifer Widom	SVM HeaderParse 0.2
AUTHOR AFFIL	Computer Science Department, Stanford University, Stanford	SVM HeaderParse 0.2
AUTHOR ADDR	California 94305	SVM HeaderParse 0.2
ABSTRACT	Semistructured data may be irregular and incomplete and does not necessarily conform to a fixed schema. As with structured data, it is often desirable to maintain a history of changes to data, and to query over both the data and the changes. Representing and querying changes in semistructured data is more difficult than in structured data due to the irregularity and lack of schema. We present a model for representing changes in semistructured data and a language for querying over these changes. An important feature of our approach is that we represent and query changes directly as annotationson the affected data, instead of indirectly as the difference between database states. We describe the implementation of our model and query language. We also describe the design and implementation of a query subscription service that permits users to subscribe to changes in semistructured information sources. 1	SVM HeaderParse 0.2
YEAR	1998	INFERENCE
VENUE	In Proceedings of the International Conference on Data Engineering	INFERENCE
VENUE TYPE	CONFERENCE	INFERENCE
PAGES	4--13	INFERENCE
CITATIONS	7 found	ParsCit 1.0