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Semistructured data

by Peter Buneman , 1997
"... In semistructured data, the information that is normally as-sociated with a schema is contained within the data, which is sometimes called “self-describing”. In some forms of semi-structured data there is no separate schema, in others it exists but only places loose constraints on the data. Semi-str ..."
Abstract - Cited by 281 (0 self) - Add to MetaCart
In semistructured data, the information that is normally as-sociated with a schema is contained within the data, which is sometimes called “self-describing”. In some forms of semi-structured data there is no separate schema, in others it exists but only places loose constraints on the data. Semi-structured

The Lorel Query Language for Semistructured Data

by Serge Abiteboul, Dallan Quass, Jason Mchugh, Jennifer Widom, Janet Wiener - International Journal on Digital Libraries , 1997
"... We present the Lorel language, designed for querying semistructured data. Semistructured data is becoming more and more prevalent, e.g., in structured documents such as HTML and when performing simple integration of data from multiple sources. Traditional data models and query languages are inapprop ..."
Abstract - Cited by 731 (29 self) - Add to MetaCart
We present the Lorel language, designed for querying semistructured data. Semistructured data is becoming more and more prevalent, e.g., in structured documents such as HTML and when performing simple integration of data from multiple sources. Traditional data models and query languages

Storing semistructured data with STORED

by Alin Deutsch, Mary Fernandez, Dan Suciu
"... Systems for managing and querying semistructured-data sources often store data in proprietary object repositories or in a tagged-text format. We describe a technique that can use relational database management systems to store and manage semistructured data. Our technique relies on a mapping between ..."
Abstract - Cited by 249 (10 self) - Add to MetaCart
Systems for managing and querying semistructured-data sources often store data in proprietary object repositories or in a tagged-text format. We describe a technique that can use relational database management systems to store and manage semistructured data. Our technique relies on a mapping

semistructured data

by George Feuerlicht, Jaroslav Pokorný, Karel Richta, Narongdech Ruttananontsatean, Narongdech Ruttananontsatean
"... All in-text references underlined in blue are linked to publications on ResearchGate, letting you access and read them immediately. ..."
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All in-text references underlined in blue are linked to publications on ResearchGate, letting you access and read them immediately.

Inferring Structure in Semistructured Data

by Svetlozar Nestorov, Serge Abiteboul, Rajeev Motwani - In Proceedings of the Workshop on Management of Semi-structured Data , 1997
"... When dealing with semistructured data such as that available on the Web, it becomes important to infer the inherent structure, both for the user (e.g., to facilitate querying) and for the system (e.g., to optimize access). In this paper, we consider the problem of identifyingsome underlying structur ..."
Abstract - Cited by 83 (3 self) - Add to MetaCart
When dealing with semistructured data such as that available on the Web, it becomes important to infer the inherent structure, both for the user (e.g., to facilitate querying) and for the system (e.g., to optimize access). In this paper, we consider the problem of identifyingsome underlying

Typechecking for Semistructured Data

by Dan Suciu - SIGACT News , 2001
"... look for the tags they need, and ignore all the others. At a more detailed level, an agreement should also constrain the structure. For example a data item with a price tag must contain an integer value, while a data item with a product tag must contain nested items labeled name, price, and descrip ..."
Abstract - Cited by 89 (4 self) - Add to MetaCart
, and description. An agreement on the structure enables applications to navigate the data in a meaningful way. We call a collection of constraints on the structure a type. Several type formalism have been proposed for semistructured data [BDFS97, GW97, BM99], and several are considered for XML [Con98, BLM + 99

Indexing semistructured data

by Jason Mchugh , Jennifer Widom , Serge Abiteboul , Qingshan Luo , Anand Rajaraman , 1998
"... Abstract This paper describes techniques for building and exploiting indexes on semistructured data: data that may not have a xed schema and that may be irregular or incomplete. We rst present a general framework for indexing values in the presence of automatic type coercion. Then based on Lore, a ..."
Abstract - Cited by 54 (2 self) - Add to MetaCart
Abstract This paper describes techniques for building and exploiting indexes on semistructured data: data that may not have a xed schema and that may be irregular or incomplete. We rst present a general framework for indexing values in the presence of automatic type coercion. Then based on Lore, a

Constraints for Semistructured Data and XML

by Peter Buneman, Wenfei Fan, Jérôme Siméon, Scott Weinstein
"... Integrity constraints play a fundamental role in database design. We review initial work on the expression of integrity constraints for semistructured data and XML. ..."
Abstract - Cited by 32 (4 self) - Add to MetaCart
Integrity constraints play a fundamental role in database design. We review initial work on the expression of integrity constraints for semistructured data and XML.

Semistructured Data and XML

by Dan Suciu , 1998
"... This paper argues that the research on semistructured data is receiving a new set of challenges with the advent of XML (Extensible Mark-up Language [Bos97, Con98]). This is a new standard approved by the World Wide Web Consortium that many believe will become the de facto data exchange format for th ..."
Abstract - Cited by 68 (1 self) - Add to MetaCart
This paper argues that the research on semistructured data is receiving a new set of challenges with the advent of XML (Extensible Mark-up Language [Bos97, Con98]). This is a new standard approved by the World Wide Web Consortium that many believe will become the de facto data exchange format

Constraints for Semistructured Data

by Ekaterina Pavlova, Igor Nekrestyanov, Boris Novikov , 2000
"... A taxonomy of constraints for semistructured data models is presented. Several existing classes of constrains defined for di#erent database models, such as relational and objectoriented, are analyzed in the context of semistructured data model. ..."
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A taxonomy of constraints for semistructured data models is presented. Several existing classes of constrains defined for di#erent database models, such as relational and objectoriented, are analyzed in the context of semistructured data model.
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