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- articleSeptember 2017
Relaxation of keyword pattern graphs on RDF Data
Journal of Web Engineering (JWE), Volume 16, Issue 5-6September 2017, Pages 363–398One of the facets of the data explosion in recent years is the growing of the repositories of RDF Data on the Web. Keyword search is a popular technique for querying repositories of RDF graph data. Recently, a number of approaches leverage a structural ...
- ArticleJune 2015
Keyword Pattern Graph Relaxation for Selective Result Space Expansion on Linked Data
ICWE 2015: Proceedings of the 15th International Conference on Engineering the Web in the Big Data Era - Volume 9114June 2015, Pages 287–306https://doi.org/10.1007/978-3-319-19890-3_19Keyword search is a popular technique for querying the ever growing repositories of RDF graph data. In recent years different approaches leverage a structural summary of the graph data to address the typical keyword search related problems. These ...
- articleJune 2015
Reasoning with patterns to effectively answer XML keyword queries
The VLDB Journal — The International Journal on Very Large Data Bases (VLDB), Volume 24, Issue 3Pages 441–465https://doi.org/10.1007/s00778-015-0384-3Keyword search is a popular technique for searching tree-structured data on the Web because it frees the user from knowing a complex query language and the structure of the data sources. However, the imprecision of the keyword queries usually results in ...
- research-articleJanuary 2015
Top-k-size keyword search on tree structured data
Information Systems (ISYS), Volume 47, Issue CJanuary 2015, Pages 178–193https://doi.org/10.1016/j.is.2014.07.002Keyword search is the most popular technique for querying large tree-structured datasets, often of unknown structure, in the web. Recent keyword search approaches return lowest common ancestors (LCAs) of the keyword matches ranked with respect to their ...
- research-articleMay 2012
Efficient keyword search on large tree structured datasets
KEYS '12: Proceedings of the Third International Workshop on Keyword Search on Structured DataMay 2012, Pages 63–74https://doi.org/10.1145/2254736.2254749Keyword search is the most popular paradigm for querying XML data on the web. In this context, three challenging problems are (a) to avoid missing useful results in the answer set, (b) to rank the results with respect to some relevance criterion and (c) ...
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- ArticleFebruary 2007
Application of the peer-to-peer paradigm in digital libraries
DELOS'07: Proceedings of the 1st international conference on Digital libraries: research and developmentFebruary 2007, Pages 318–327We present the architecture of a largely distributed Digital Library that is based on the Peer-to-Peer computing paradigm. The three goals of the architecture are: (i) increased node autonomy, (ii) flexible location of data, and (iii) efficient query ...