Overview of the second text retrieval conference (TREC-2)
TREC-2 Proceedings of the second conference on Text retrieval conference
Expressiveness of concept expressions in first-order description logics
Artificial Intelligence
A Web Odyssey: from Codd to XML
PODS '01 Proceedings of the twentieth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
Modal logic
XIRQL: a query language for information retrieval in XML documents
Proceedings of the 24th annual international ACM SIGIR conference on Research and development in information retrieval
Searching XML documents via XML fragments
Proceedings of the 26th annual international ACM SIGIR conference on Research and development in informaion retrieval
Experiments in Automatic Phrase Indexing For Document Retrieval: A Comparison of Syntactic and Non-Syntactic Methods
XIRQL: An XML query language based on information retrieval concepts
ACM Transactions on Information Systems (TOIS)
Processing content-oriented XPath queries
Proceedings of the thirteenth ACM international conference on Information and knowledge management
Efficient algorithms for processing XPath queries
ACM Transactions on Database Systems (TODS)
Semantic characterizations of navigational XPath
ACM SIGMOD Record
Structural properties of XPath fragments
Theoretical Computer Science - Database theory
Structured queries in XML retrieval
Proceedings of the 14th ACM international conference on Information and knowledge management
Advances in XML Information Retrieval and Evaluation: 4th International Workshop of the Initiative for the Evaluation of XML Retrieval, INEX 2005, Dagstuhl ... Papers (Lecture Notes in Computer Science)
Term proximity scoring for keyword-based retrieval systems
ECIR'03 Proceedings of the 25th European conference on IR research
INEX'05 Proceedings of the 4th international conference on Initiative for the Evaluation of XML Retrieval
INEX'05 Proceedings of the 4th international conference on Initiative for the Evaluation of XML Retrieval
The effect of structured queries and selective indexing on XML retrieval
INEX'05 Proceedings of the 4th international conference on Initiative for the Evaluation of XML Retrieval
What do users think of an XML element retrieval system?
INEX'05 Proceedings of the 4th international conference on Initiative for the Evaluation of XML Retrieval
Narrowed extended XPath i (NEXI)
INEX'04 Proceedings of the Third international conference on Initiative for the Evaluation of XML Retrieval
The interactive track at INEX 2004
INEX'04 Proceedings of the Third international conference on Initiative for the Evaluation of XML Retrieval
Advances in XML retrieval: the INEX initiative
Proceedings of the 2006 international workshop on Research issues in digital libraries
Overview of the INEX 2007 Ad Hoc Track
Focused Access to XML Documents
Long, often quite boring, notes of meetings
Proceedings of the WSDM '09 Workshop on Exploiting Semantic Annotations in Information Retrieval
A cluster-based approach to XML similarity joins
IDEAS '09 Proceedings of the 2009 International Database Engineering & Applications Symposium
Managing structured queries in probabilistic XML retrieval systems
Information Processing and Management: an International Journal
Tree patterns with full text search
Procceedings of the 13th International Workshop on the Web and Databases
Focused retrieval and result aggregation with political data
Information Retrieval
Unified access to heterogeneous data in cultural heritage
Large Scale Semantic Access to Content (Text, Image, Video, and Sound)
Query modeling for entity search based on terms, categories, and examples
ACM Transactions on Information Systems (TOIS)
Toward a model of interaction for complex search tasks
Proceedings of the fourth workshop on Exploiting semantic annotations in information retrieval
Hi-index | 0.00 |
Document-centric XML is a mixture of text and structure. With the increased availability of document-centric XML documents comes a need for query facilities in which both structural constraints and constraints on the content of the documents can be expressed. How does the expressiveness of languages for querying XML documents help users to express their information needs? We address this question from both an experimental and a theoretical point of view. Our experimental analysis compares a structure-ignorant with a structure-aware retrieval approach using the test suite of the INEX XML Retrieval Evaluation Initiative. Theoretically, we create two mathematical models of users' knowledge of a set of documents and define query languages which exactly fit these models. One of these languages corresponds to an XML version of fielded search, the other to the INEX query language.Our main experimental findings are: First, while structure is used in varying degrees of complexity, two-thirds of the queries can be expressed in a fielded-search-like format which does not use the hierarchical structure of the documents. Second, three-quarters of the queries use constraints on the context of the elements to be returned; these contextual constraints cannot be captured by ordinary keyword queries. Third, structure is used as a search hint, and not as a strict requirement, when judged against the underlying information need. Fourth, the use of structure in queries functions as a precision enhancing device.