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Query Answering in Resource-Based Answer Set Semantics [article]

Stefania Costantini, Andrea Formisano
2016 arXiv   pre-print
In recent work we defined resource-based answer set semantics, which is an extension to answer set semantics stemming from the study of its relationship with linear logic.  ...  In this paper, we propose a query-answering procedure reminiscent of Prolog for answer set programs under this extended semantics as an extension of XSB-resolution for logic programs with negation.  ...  Under the resource-based answer set semantics the first rule is ignored in the first place: in fact, Π 1 has a unique resource-based answer set which is the empty set.  ... 
arXiv:1608.01604v1 fatcat:nxksxko4svcuhkgtzdmoo3tyou

Query answering in resource-based answer set semantics

STEFANIA COSTANTINI, ANDREA FORMISANO
2016 Theory and Practice of Logic Programming  
AbstractIn recent work we defined resource-based answer set semantics, which is an extension to answer set semantics stemming from the study of its relationship with linear logic.  ...  In this paper, we propose a query-answering procedure reminiscent of Prolog for answer set programs under this extended semantics as an extension of XSB-resolution for logic programs with negation.1We  ...  Resource-based answer set semantics enjoys Relevance.  ... 
doi:10.1017/s1471068416000478 fatcat:3ojhgoadebbhdm5rf6sqwooj44

Work Out the Semantic Web Search: The Cooperative Way

Dora Melo, Irene Pimenta Rodrigues, Vitor Beires Nogueira
2012 Advances in Artificial Intelligence  
We propose a Cooperative Question Answering System that takes as input natural language queries and is able to return a cooperative answer based on semantic web resources, more specifically DBpedia represented  ...  in OWL/RDF as knowledge base and WordNet to build similar questions.  ...  Afterwards we extract a set of semantic resources which may contain the information requested.  ... 
doi:10.1155/2012/867831 fatcat:ujptv336p5fixas2d5aqhlxo24

Dynamic Configurability of a Semantic Matchmaker for Ontology-based Resource Discovery in Open Distributed Systems

Silvana Castano, Alfio Ferrara, Stefano Montanelli
2005 International Conference on Advanced Information Systems Engineering  
An important requirement for dynamic collaboration and semantic interoperability in open distributed systems is to minimize the effort needed for answering resource discovery queries by simultaneously  ...  guaranteeing the accuracy of the answers.  ...  Introduction We consider the semantic interoperability problem in open distributed contexts like semantic Grids and peer-based systems, where a set of independent peer nodes without prior reciprocal knowledge  ... 
dblp:conf/caise/CastanoFM05 fatcat:xm6fasga5jbqhj3ttluenjg7pq

The SemSets model for ad-hoc semantic list search

Marek Ciglan, Kjetil Nørvåg, Ladislav Hluchý
2012 Proceedings of the 21st international conference on World Wide Web - WWW '12  
in semantic sets, in order to provide the answers.  ...  One of the key challenges triggered by this growth is the ad-hoc querying, i.e., the ability to retrieve answers from semantic resources using natural language queries.  ...  CONCLUSION In this paper, we have proposed the SemSets retrieval model for answering semantic type queries from a semantic knowledge base.  ... 
doi:10.1145/2187836.2187855 dblp:conf/www/CiglanNH12 fatcat:gfbgf747vrd25jvfylbipm6yfu

Semantic Search – Using Graph-Structured Semantic Models for Supporting the Search Process [chapter]

Thanh Tran, Peter Haase, Rudi Studer
2009 Lecture Notes in Computer Science  
resources.  ...  Semantic search attempts to go beyond the current state of the art in information access by addressing information needs on the semantic level, i.e. considering the meaning of users' queries and the available  ...  Acknowledgements This work was partially supported by the European Commission in the IST projects NeOn (IST-2006-027595) and X-Media (IST-FP6-026978).  ... 
doi:10.1007/978-3-642-03079-6_5 fatcat:sks5xgnfjnfj3k6jsg3oepv5bq

Using RDF Summary Graph For Keyword-based Semantic Searches [article]

Serkan Ayvaz, Mehmet Aydar
2017 arXiv   pre-print
The framework augments the search results with the resources in close proximity by utilizing the entity type semantics.  ...  This study proposes a semantic search framework to support efficient keyword-based semantic search on RDF data utilizing near neighbor explorations.  ...  [9] adopting semantic searches based on user provided queries in a formal query language such as SPARQL.  ... 
arXiv:1707.03602v1 fatcat:kvdiexxvmzawnim6yr6bxqvria

A decentralized infrastructure for query answering over distributed ontologies

Peter Haase, Yimin Wang
2007 Proceedings of the 2007 ACM symposium on Applied computing - SAC '07  
In this paper we describe an infrastructure for query answering over distributed ontologies on the Semantic Web.  ...  Our approach is based on a virtual integration that exhibits a semantics as if all ontologies were integrated locally.  ...  Acknowledgments Research reported in this paper has been partially financed by the EU in the IST projects SEKT (IST-2003-506826, http://www. sekt-project.com/) and NeOn (IST-2006-027595, http: //www.neon-project.org  ... 
doi:10.1145/1244002.1244294 dblp:conf/sac/HaaseW07 fatcat:cinb23ymonb6zdjg2gvkez4b4q

HAWK – Hybrid Question Answering Using Linked Data [chapter]

Ricardo Usbeck, Axel-Cyrille Ngonga Ngomo, Lorenz Bühmann, Christina Unger
2015 Lecture Notes in Computer Science  
We present HAWK, a novel entity search approach for Hybrid Question Answering based on combining Linked Data and textual data.  ...  Our results show that HAWK achieves 0.68 respectively 0.61 F-measure within the training respectively test phases on the Question Answering over Linked Data (QALD-4) hybrid query benchmark.  ...  Ranking HAWK ranks queries using supervised training based on the gold standard answer set from the QALD-4 benchmark.  ... 
doi:10.1007/978-3-319-18818-8_22 fatcat:sczyjljcsfga3cf6vvrw2fcb54

A semantic cache for enhancing Web services communities activities: Health care case Study

Hela Limam, Jalel Akaichi
2012 International Journal of Advanced Computer Science and Applications  
Then we show how the health care Web services community' members exploit their collective memory by expressing their queries allowing them searching relevant resources in order to perform their activities  ...  To take advantages of collective memory, we propose an approach for indexing a health care Web services community's' resources with semantic annotations explaining and formalizing its informative content  ...  Hence, the process of researching resources for answering queries becomes based on a formal manipulation of annotated resources.  ... 
doi:10.14569/ijacsa.2012.031004 fatcat:up5clupqgrgmlg6czs3fklyvv4

Using Syntactic and Semantic Relation Analysis in Question Answering

Renxu Sun, Jing Jiang, Yee Fan Tan, Hang Cui, Tat-Seng Chua, Min-Yen Kan
2005 Text Retrieval Conference  
Our major modification lies in query expansion, semantic answer nugget extraction from web resources and the bigram model for definition sentence selection.  ...  Semantic Answer Extraction Our goal is to match the semantic structure contained in the question with sentences from the web resources containing answer nuggets.  ... 
dblp:conf/trec/SunJTCCK05 fatcat:ksuzci6uezfqpff4veyikjamfe

Comparison of Question Answering Systems Based on Ontology and Semantic Web in Different Environment

S.
2012 Journal of Computer Science  
Approach: This paper surveys different types of question answering system based on ontology and semantic web model with different query format.  ...  Answers are retrieved from ontology using Semantic Search approach and question-to-query algorithm is evaluated in our system for analyzing performance evaluation.  ...  Get user query and generate query tree For (the entire resource tree in the domain ontology) { Find the match for root node of the query tree in the resource tree and create resource sub trees.  ... 
doi:10.3844/jcssp.2012.1407.1413 fatcat:xdfchvwntrfjxemyw6z5nogwvm

A Reference Model for Semantic Peer-to-Peer Networks [chapter]

Abdul-Rahman Mawlood-Yunis, Michael Weiss, Nicola Santoro
2011 Lecture Notes in Computer Science  
In this paper, we describe a reference model for semantic peer-to-peer networks in an effort to remedy this problem.  ...  They are based around two components: a peer-to-peer infrastructure for information exchange between information system, and the use of ontologies to define application semantics.  ...  Fig. 2 . 2 Resource construct Fig. 4 . 4 Semantic neighborhood construct Fig. 5 . 5 Mapping construct Fig. 7 . 7 Query Answerer construct Fig. 8 . 8 Semantic Based P2P classes and their dependency  ... 
doi:10.1007/978-3-642-22630-4_2 fatcat:scv5572lhfdylh76u64reqhviu

A Reference Model for Semantic Peer-to-Peer Networks [chapter]

Abdul-Rahman Mawlood-Yunis, Michael Weiss, Nicola Santoro
2009 Lecture Notes in Business Information Processing  
In this paper, we describe a reference model for semantic peer-to-peer networks in an effort to remedy this problem.  ...  They are based around two components: a peer-to-peer infrastructure for information exchange between information system, and the use of ontologies to define application semantics.  ...  Fig. 2 . 2 Resource construct Fig. 4 . 4 Semantic neighborhood construct Fig. 5 . 5 Mapping construct Fig. 7 . 7 Query Answerer construct Fig. 8 . 8 Semantic Based P2P classes and their dependency  ... 
doi:10.1007/978-3-642-01187-0_27 fatcat:co4yk4sdjvbulgddupwtnnrv2a

PowerAqua: Supporting users in querying and exploring the Semantic Web

Vanessa Lopez, Miriam Fernández, Enrico Motta, Nico Stieler
2012 Semantic Web Journal  
In this work, we present PowerAqua, an ontologybased Question Answering system that is able to answer queries by locating and integrating information, which can be distributed across heterogeneous semantic  ...  how PowerAqua effectively supports users in querying and exploring Semantic Web content.  ...  The Merging and Ranking Component composes precise answers by integrating the set of ontological facts (triple patterns), recovered in the previous step from multiple semantic resources.  ... 
doi:10.3233/sw-2011-0030 fatcat:cx5f3a5rhbhwboctyjogb3zwqm
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