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Managing structured queries in probabilistic XML retrieval systems
2010
Information Processing & Management
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Focusing on the context of XML retrieval, in this paper we propose a general methodology for managing structured queries (involving both content and structure) within any given structured probabilistic ...
information retrieval system which is able to compute posterior probabilities of relevance for structural components given a non-structured query (involving only query terms but not structural restrictions ...
the structural conditions specified in the about clause and in the path). 4 Fig. 4 shows the modules required for a probabilistic retrieval system in order to deal with structured queries. ...
doi:10.1016/j.ipm.2009.11.006
fatcat:kevg5i6j5vhldnnafi6u6qbulm
Modelling Vague Content and Structure Querying in XML Retrieval with a Probabilistic Object-Relational Framework
[chapter]
2004
Lecture Notes in Computer Science
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In this paper, we use a probabilistic object-relational framework to model representation and retrieval strategies that take into account vagueness at both content and structure level. ...
Many XML retrieval applications require relevance-oriented ranking of retrieved elements in order to capture the vagueness inherent to the information retrieval process. ...
In Section 4, we describe the probabilistic object-relational representation of XML documents. In Section 5, we describe the probabilistic object-relational evaluation of XML queries. ...
doi:10.1007/978-3-540-25957-2_34
fatcat:4etmybrt4jdlvht5nksvdixwji
PEPX
2006
Proceedings of the 15th ACM international conference on Information and knowledge management - CIKM '06
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However, in order to calculate the probability of a query result, existing probabilistic XML data models need to retrieve all these intermediate nodes. ...
Nevertheless, using current probabilistic XML data models, it is inevitable to access all the ancestors of the XML nodes in a pattern match to the query in order to compute the probability of the query ...
doi:10.1145/1183614.1183761
dblp:conf/cikm/LiSC06
fatcat:2mjodpu4fnc5nmscrugwl2n6ey
The TopX DB&IR engine
2007
Proceedings of the 2007 ACM SIGMOD international conference on Management of data - SIGMOD '07
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TopX integrates efficient algorithms for top-k-style ranked retrieval with powerful scoring models for text and XML documents, as well as dynamic and selftuning query expansion based on background ontologies ...
This paper proposes a demo of the TopX search engine, an extensive framework for unified indexing, querying, and ranking of large collections of unstructured, semistructured, and structured data. ...
for the Evaluation of XML Retrieval (INEX) on XML IR. ...
doi:10.1145/1247480.1247635
dblp:conf/sigmod/TheobaldSW07
fatcat:ehiibvqfarh3rkyilvcnmsjr3i
An Attribute-based Model for Semantic Retrieval
2010
Lernen, Wissen, Daten, Analysen
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The modelling approach represents both semantic and textual data in one unifying framework, referred to as the probabilistic object-relational content modelling framework. ...
Overall, the probabilistic objectrelational content model can guide how semantic search and semantic data are modelled. ...
Acknowledgments We would like to thank Jinyoung Kim of the University of Massachusetts Amherst for providing us with the collection and the queries. ...
dblp:conf/lwa/AzzamR10
fatcat:euiyz3prdvglnlhhkh356vapyi
Enhancing the Performance of XML Query Processing - Semantic Cache System
2006
2006 International Conference on Advanced Computing and Communications
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The semantic caching technology can help to improve the efficiency of XML query processing in the Web environment. ...
With the advent of XML, great challenges arise from the demand for efficiently retrieving information from remote XML sources across the Internet. ...
To achieve effective cache management, the access and management of the cached data in a semantic caching system is typically at the level of query descriptions. ...
doi:10.1109/adcom.2006.4289857
fatcat:yjr7bnq7yveo3n64rnuxtbl5mi
Probabilistic XML: Models and Complexity
[chapter]
2013
Studies in Fuzziness and Soft Computing
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Beyond representation, probabilistic XML systems are expected to support data management in a way that properly reflects the uncertainty. ...
Efficiently and effectively accomplishing data-management tasks in that manner is a major technical challenge. This chapter reviews the literature on probabilistic XML. ...
Query Evaluation In this section, we discuss a central aspect in the management of probabilistic XML-query evaluation. ...
doi:10.1007/978-3-642-37509-5_3
fatcat:lcoqkx7euvfb3dietqvb6v3qva
PowerDB-XML: A Platform for Data–Centric and Document–Centric XML Processing
[chapter]
2003
Lecture Notes in Computer Science
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Moreover, we show that document-centric XML processing is efficiently feasible using relational database systems for storage management and standard SQL. ...
Relational database systems are well-suited as a platform for data-centric XML processing. Data-centric applications process regularly structured XML documents using precise predicates. ...
[18] that information retrieval using relational database systems for storage management is efficient. ...
doi:10.1007/978-3-540-39429-7_7
fatcat:3yvno6vrd5endi3pgkd6w6vvxm
Introduction to the special issue on database and information retrieval integration
2007
The VLDB journal
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, or developing a unified model and system. ...
From an IR perspective, dealing with structure started in the 1970s with commercial search services such as MED-LINE and DIALOG that had Boolean field restrictions. ...
Another important line of research in IR has been retrieval using structured documents. ...
doi:10.1007/s00778-007-0074-x
fatcat:ld66ny4vvrbuze7hwhhl7xu2ca
Score region algebra
2005
Proceedings of the 14th ACM international conference on Information and knowledge management - CIKM '05
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The evaluation of the system is performed on a collection of IEEE articles in XML format provided by INEX. ...
A unified database framework that will enable better comprehension of ranked XML retrieval is still a challenge in the XML database field. ...
any change in document structure or used retrieval model, will lead to system developers needing to change major parts of the retrieval system • traditional IR systems are developed for a simple query ...
doi:10.1145/1099554.1099560
dblp:conf/cikm/MihajlovicBHA05
fatcat:iairbfzqircijowpw2d3ufbt4m
Report on the DB/IR panel at SIGMOD 2005
2005
SIGMOD record
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However, emerging applications such as content management and XML data management, which have an abundant mix of structured and unstructured data, require us to rethink data management assumptions such ...
Consequently, there has been no single unified system model for managing both structured and unstructured data, and processing both precise and ranked queries. ...
In 1999, he obtained his PhD on "POOL: A probabilistic object-oriented logic for information retrieval". ...
doi:10.1145/1107499.1107514
fatcat:ngwqt5smibgsvkpo4b4orxp5we
Top-k Query Processing Techniques in Uncertain Databases: A Review
2015
International Journal of Computer Applications
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Ranking queries (often called as top-k) are useful in answering most important query answers in various domains such as web search, managing sensor data, location tracking, data mining tasks and multimedia ...
In this survey paper, we describe and classify different top-k processing techniques in probabilistic databases and their implications. ...
Table-1summarises the difference between traditional database management system and data stream management system. In probabilistic databases, there can two different types of top-k problems. ...
doi:10.5120/21345-4358
fatcat:zazx3lvi2najdayttvujqmb3be
ProApproX
2011
Proceedings of the 2011 international conference on Management of data - SIGMOD '11
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We demonstrate a system for querying probabilistic XML documents with simple XPath queries. ...
A user chooses between a variety of query answering techniques, both exact and approximate, and observes the running behavior, pros, and cons, of each method, in terms of efficiency, precision of the result ...
A PROBABILISTIC XML SYSTEM Our system evaluates queries over a given probabilistic XML document either with an exact calculation when some form of independence between query matches is detected, or by ...
doi:10.1145/1989323.1989480
dblp:conf/sigmod/SenellartS11
fatcat:okoyaxoh6nak3ai3ykn3ybbwta
A probabilistic XML merging tool
2011
Proceedings of the 14th International Conference on Extending Database Technology - EDBT/ICDT '11
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This demonstration paper presents a probabilistic XML data merging tool, that represents the outcome of semi-structured document integration as a probabilistic tree. ...
The resulting probabilistic repository can be queried using a subset of the XPath query language. ...
This probabilistic XML representation system is denoted PrXML fie . ...
doi:10.1145/1951365.1951435
dblp:conf/edbt/AbdessalemBS11
fatcat:pucaygvyf5bxzesabenwn4aijq
Going Native: Indexing architecture of eXist-db_ An Open Source native XML database system
2013
2013 IEEE International Conference of IEEE Region 10 (TENCON 2013)
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This paper presents the indexing architecture of eXist-db, a native XML database and modified the query engine of eXist by indexing schema supports quick identification of structural node relationships ...
The difference between the nature of the database structure and XML data structure became an important research topic, and this led to emergence eXist-db, a native XML database which designed specifically ...
The difference between the nature of the database structure and XML data structure, leads to some problems and important issues such as: Involved in storing data, retrieval from the database, and Lack ...
doi:10.1109/tencon.2013.6718503
fatcat:b5c5eolkhncupcy7g36bksjnyq
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