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DTD inference for views of XML data
2000
Proceedings of the nineteenth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems - PODS '00
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We study the inference of Data Type De nitions DTDs for views of XML data, using an abstraction that focuses on document content structure. ...
With these extensions, we show that one can always infer tight DTDs, that precisely characterize a selection view on sources satisfying given DTDs. ...
Acknowledgements The authors wish to thank Pavel Velikhov and Andreas Yanakopoulos for implementing the DTD inference algorithm for XMAS. ...
doi:10.1145/335168.335173
dblp:conf/pods/PapakonstantinouV00
fatcat:dqpt3tzix5b3fmoaqtijf5spdi
XML-based information mediation with MIX
1999
SIGMOD record
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The DTD inference task is to infer the DTDs of the mediator view, given the mediator view de nition and the source DTDs; see PV99 for an algorithm on Mix's DTD inference. ...
Given the central role of DTDs in our approach, semi-automatic inference of view DTDs becomes an important issue. ...
We thank Victor Vianu for enlightening discussions on the meaning of Xmas and Andreas Yannakopoulos for discussions on Bbq. ...
doi:10.1145/304181.304590
fatcat:spyeuh7afvc7veem3bmaisq62m
XML-based information mediation with MIX
1999
Proceedings of the 1999 ACM SIGMOD international conference on Management of data - SIGMOD '99
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The DTD inference task is to infer the DTDs of the mediator view, given the mediator view de nition and the source DTDs; see PV99 for an algorithm on Mix's DTD inference. ...
Given the central role of DTDs in our approach, semi-automatic inference of view DTDs becomes an important issue. ...
We thank Victor Vianu for enlightening discussions on the meaning of Xmas and Andreas Yannakopoulos for discussions on Bbq. ...
doi:10.1145/304182.304590
dblp:conf/sigmod/BaruGLMPVC99
fatcat:wstvivl64zfa3ev7ls6exxlr5m
SchemaScope
2008
Proceedings of the 2008 ACM SIGMOD international conference on Management of data - SIGMOD '08
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We present SchemaScope, a system to derive Document Type Definitions and XML Schemas from corpora of sample XML documents. ...
Tools are provided to visualize, clean, and refine existing or inferred schemas. A number of use cases illustrates the versatility of the system, as well as various types of applications. ...
For the purpose of demonstrating the automatic inference of schemas, we use a corpus of XSD documents; infer a schema from it; and compare this inferred schema with the actual XSD for XML Schema Definitions ...
doi:10.1145/1376616.1376750
dblp:conf/sigmod/BexNV08
fatcat:w7xbn7cd7vgttfxidi7uvodwt4
Graph transformation to infer schemata from XML documents
2005
Proceedings of the 2005 ACM symposium on Applied computing - SAC '05
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The paper adopts XML as the language to render semi-structured data and proposes an approach -based on graph transformation techniques -to infer the schemata of XML documents. ...
This heterogeneity simplifies the management of such data, but analysis and queries become more difficult and demand for schemata that describe these data. ...
To the best of our knowledge the problem of inferring DTDs from a collection of XML documents has been addressed in [9, 5] . In [9] , the authors study the inference of DTDs from views of XML data. ...
doi:10.1145/1066677.1066824
dblp:conf/sac/BaresiQ05
fatcat:pwjpstgshjantjc6wz6ldh54nq
Type-Based XML Processing in Logic Programming
[chapter]
2002
Lecture Notes in Computer Science
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Due to the correctness of the type inference this makes it possible to use logic programs as an implicitly typed processing language for XML with static type (in this case DTDs) validation. ...
We implemented a standard type inference algorithm for logic programs and use the types corresponding to the DTDs as additional type declarations for logic programs for XML processing. ...
This difference in the view of XML data leads to significant differences in the processing stage. ...
doi:10.1007/3-540-36388-2_19
fatcat:25cniultfzb37cgy5iejx3iagq
BBQ: A Visual Interface for Integrated Browsing and Querying of XML
[chapter]
2000
Advances in Visual Information Management
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In this paper we present BBQ (Blended Browsing and Querying), a graphic user interface for seamlessly browsing and querying XML data sources. ...
Queries are constructed in a query-by-example (QBE) manner, where DTDs play the role of schema. ...
ACKNOWLEDGEMENTS This work was supported by the Data Intensive Computing Group at the San Diego Supercomputer Center, as part of the Data Visualization Corridor project, which is funded by the Department ...
doi:10.1007/978-0-387-35504-7_18
fatcat:4huctron4fb43j62kf5xglvyf4
Correlated Data Inference
[chapter]
2004
IFIP International Federation for Information Processing
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The system operates on the DTD's of XML documents to identify data associations and the corresponding security classifications. ...
An undesired inference is a chain of reasoning that leads to protected data of an organization or an individual, using only intentionally disclosed information. ...
Association Graph) The Inference Association Graph of an XML DTD structure, denoted by IAG= (V, E) , is a graph with nodes V (data tags of the XML) and edges E (associations among the tags). ...
doi:10.1007/1-4020-8070-0_9
fatcat:ax2jzirt2fbb3jnccvota2xdvy
Toward the Automatic Derivation of XML Transformations
[chapter]
2003
Lecture Notes in Computer Science
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This combination enables the inference of a sequence of XML transformations by a search algorithm based on the operations' DTD transformations. ...
Our approach builds on a formal semantics for XML operations and their associated DTD transformation and on an axiomatic theory of information preservation and approximation. ...
Data integration from an application point of view is also discussed, for example, in [8, 6, 14, 13 ]. ...
doi:10.1007/978-3-540-39597-3_34
fatcat:mwnoe5zrxzc3hcs3fobt7ss4r4
Ontology Guided XML Security Engine
2004
Journal of Intelligent Information Systems
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We present an ontology-supported security model to detect undesired inferences via replicated XML data. Our model is able to detect inconsistent security classifications of replicated data. ...
We propose the Ontology Guided XML Security Engine (Oxsegin) architecture to identify data items exposed to ontology-based inference attacks. ...
Any opinions, findings and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation (NSF). ...
doi:10.1023/b:jiis.0000047392.50246.77
fatcat:whslm57v5jhyrnu4ev5ibdirhe
XTRACT
2000
SIGMOD record
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In this paper, we propose XTRACT, a novel system for inferring a DTD schema for a database of XML documents. ...
An XML document can be accompanied by a Document Type Descriptor (DTD) which plays the role of a schema for an XML data collection. ...
Although, XML can be viewed as an instance of semistructured data, the kinds of schema considered in [8, 13, 18] are very different from a DTD. ...
doi:10.1145/335191.335409
fatcat:n6ml2x2efvbundih3fawjr2rbe
XTRACT
2000
Proceedings of the 2000 ACM SIGMOD international conference on Management of data - SIGMOD '00
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The file type is application/pdf.
In this paper, we propose XTRACT, a novel system for inferring a DTD schema for a database of XML documents. ...
An XML document can be accompanied by a Document Type Descriptor (DTD) which plays the role of a schema for an XML data collection. ...
Although, XML can be viewed as an instance of semistructured data, the kinds of schema considered in [8, 13, 18] are very different from a DTD. ...
doi:10.1145/342009.335409
dblp:conf/sigmod/GarofalakisGRSS00
fatcat:7l6d3mjy4jgmtmv3exiykxf2zu
XML-based information mediation for digital libraries
1999
Proceedings of the fourth ACM conference on Digital libraries - DL '99
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The architecture is based on XML-based modeling of metadata; use of an XML query language, and associated mediator middleware, to query distributed metadata sources; and the use of a storage system middleware ...
to access distributed, archived data sets. ...
is driven by the mediator view DTD, and which integrates browsing and querying of XML data. ...
doi:10.1145/313238.313321
dblp:conf/dl/BaruCGLMPV99
fatcat:7ybk2xjfwjfyjg7aybnb5j4o2u
Secure XML Views
[chapter]
2003
IFIP Advances in Information and Communication Technology
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In the context of DTD-based multilevel security classification, we develop techniques to generate single-level DTDs for partial views. ...
Recently more and more data is stored in XML format. While XML increases flexibility, it also raises new security challenges such as access control for multilevel security. ...
The partial view is an instantiation of the first reduced form corresponding DTD with data from the XML file. ...
doi:10.1007/978-0-387-35697-6_11
fatcat:w2cv7xvcubgf3jwdmmkodnikci
How to structure and access XML documents with ontologies
2001
Data & Knowledge Engineering
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Currently dozens of XML-based applications exist or are under development. Many of them offer DTDs that define the structure of actual XML documents. ...
, and inference mechanisms on the one hand with the popularity, simplicity, and flexibility of XML on the other hand leads to applications providing a broad range of high quality information. ...
Since, it cannot be expected that application development always starts with modeling an ontology we must take care of existing XML document structures or XML Schemas, how they can be related to an ontology ...
doi:10.1016/s0169-023x(00)00048-3
fatcat:j5vabtxnmbhrnculuqxji7qtjy
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