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- research-articleOctober 2020
Designing an integrated knowledge graph for smart energy services
The Journal of Supercomputing (JSCO), Volume 76, Issue 10Oct 2020, Pages 8058–8085https://doi.org/10.1007/s11227-018-2672-3AbstractThe sharp growth of distributed energy-related resources requires an efficient energy management for future grids. The traditional power grid that highly depends on information model standards collects energy data depending on them and creates ...
- research-articleMay 2019
Predicate constraints based question answering over knowledge graph
Information Processing and Management: an International Journal (IPRM), Volume 56, Issue 3May 2019, Pages 445–462https://doi.org/10.1016/j.ipm.2018.12.003AbstractGenerally, QA systems suffer from the structural difference where a question is composed of unstructured data, while its answer is made up of structured data in a Knowledge Graph (KG). To bridge this gap, most approaches use lexicons ...
- articleApril 2019
Reliable TF-based recommender system for capturing complex correlations among contexts
Journal of Intelligent Information Systems (JIIS), Volume 52, Issue 2April 2019, Pages 337–365https://doi.org/10.1007/s10844-018-0514-7Context-aware recommender systems (CARS) exploit multiple contexts to improve user experience in embracing new information and services. Tensor factorization (TF), a type of latent factor model, has achieved remarkable performance in CARS. TF learns ...
- articleMarch 2019
SECoG: semantically enhanced mashup of CoAP-based IoT services
Service Oriented Computing and Applications (SPSOCA), Volume 13, Issue 1March 2019, Pages 81–94https://doi.org/10.1007/s11761-019-00254-0One of the noticeable characteristics of the Internet-of-Things (IoT) devices is that they are resource-constrained, which makes them incompatible with the standard Internet protocols, e.g., HTTP. Nevertheless, IoT offers the Constrained Application ...
- research-articleFebruary 2018
Enabling smart objects discovery via constructing hypergraphs of heterogeneous IoT interactions
Journal of Information Science (JIPP), Volume 44, Issue 12 2018, Pages 110–124https://doi.org/10.1177/0165551516674164Recent advances in the Internet of Things IoT have led to the rise of a new paradigm: Social Internet of Things SIoT. However, the new paradigm, as inspired by the idea that smart objects will soon have a certain degree of social consciousness, is still ...
- research-articleDecember 2017
An adaptive plan-based approach to integrating semantic streams with remote RDF data
Journal of Information Science (JIPP), Volume 43, Issue 612 2017, Pages 852–865https://doi.org/10.1177/0165551516670278To satisfy a user's complex requirements, Resource Description Framework RDF Stream Processing RSP systems envision the fusion of remote RDF data with semantic streams, using common data models to query semantic streams continuously. While streaming ...
- articleDecember 2017
A fast and scalable approach for IoT service selection based on a physical service model
Information Systems Frontiers (KLU-ISFI), Volume 19, Issue 6December 2017, Pages 1357–1372https://doi.org/10.1007/s10796-016-9650-1Information Systems (ISs) have become one of the crucial tools for various organizations in managing and coordinating business processes. Now we are entering the era of the Internet of Things (IoT). IoT is a paradigm in which real-world physical things ...
- articleMay 2016
Outlier-robust web service selection based on a probabilistic QoS model
International Journal of Web and Grid Services (IJWGS), Volume 12, Issue 2May 2016, Pages 162–181https://doi.org/10.1504/IJWGS.2016.076619In real world, a service may be affected by various factors making service selection process a difficult task. Therefore it is important to select an appropriate service efficiently from a large number of services based on the quality of a service QoS. ...
- ArticleDecember 2015
Hypergraph-based overlay network model for the Internet of Things
WF-IOT '15: Proceedings of the 2015 IEEE 2nd World Forum on Internet of Things (WF-IoT)December 2015, Pages 104–109https://doi.org/10.1109/WF-IoT.2015.7389035As the Internet of Things (IoT) is gaining tremendous popularity from industries to researchers for its potential to provide business opportunities and academic contributions, several research challenges have risen to the surface. With billions of IoT ...
- articleNovember 2015
IS2NM: integrated social service network model for computing web service reputation
International Journal of Web and Grid Services (IJWGS), Volume 11, Issue 4November 2015, Pages 390–409https://doi.org/10.1504/IJWGS.2015.072807Social networks facilitate information sharing and communication among people who have common interests. In the field of services computing, many researches have tried to exploit social networks to compute the reputations of web services. However, the ...
- ArticleNovember 2014
IoT Service Selection Based on Physical Service Model and Absolute Dominance Relationship
SOCA '14: Proceedings of the 2014 IEEE 7th International Conference on Service-Oriented Computing and ApplicationsNovember 2014, Pages 65–72https://doi.org/10.1109/SOCA.2014.24The Internet of Things (IoT) is a paradigm where real-world entities can be connected to the Internet and provide services with the help of attached devices. With the development of IoT technologies, the number of devices deployed around the world as ...
- ArticleJuly 2014
Keyword Based Semantic Search for Mobile Data
MDM '14: Proceedings of the 2014 IEEE 15th International Conference on Mobile Data Management - Volume 01July 2014, Pages 245–248https://doi.org/10.1109/MDM.2014.36Most of the mobile platforms provide a keyword based full text search (FTS) for users to find what they want. However, FTS has difficulties in dealing with the cases where a user cannot remember the exact keywords about target data or the number of ...
- ArticleMay 2014
Poster Abstract: Semantically Enriched Object Identification for Internet of Things
DCOSS '14: Proceedings of the 2014 IEEE International Conference on Distributed Computing in Sensor SystemsMay 2014, Pages 141–142https://doi.org/10.1109/DCOSS.2014.64To efficiently explore heterogeneous objects on the Internet and uniquely identify them, we propose a scalable physical-object naming system that reuses the existing ontologies and assigns URL-based semantic identifiers. We implement a prototype of the ...
- ArticleDecember 2013
Estimating Web Service Reputation from Integrated Social Service Network Model
ICPADS '13: Proceedings of the 2013 International Conference on Parallel and Distributed SystemsDecember 2013, Pages 510–515Social networks facilitate information sharing and communication among people who have common interests. Although social networks have been widely used to compute the reputations of Web services, they are limited in the ability to support the ...
- ArticleOctober 2013
RDFChain: chain centric storage for scalable join processing of RDF graphs using MapReduce and HBase
ISWC-PD '13: Proceedings of the 12th International Semantic Web Conference (Posters & Demonstrations Track) - Volume 1035October 2013, Pages 249–252As a massive linked open data is available in RDF, the scalable storage and efficient retrieval using MapReduce have been actively studied. Most of previous researches focus on reducing the number of MapReduce jobs for processing join operations in ...
- posterMarch 2013
Semantic search for smart mobile devices
IUI '13 Companion: Proceedings of the companion publication of the 2013 international conference on Intelligent user interfaces companionMarch 2013, Pages 95–96https://doi.org/10.1145/2451176.2451217To enhance the incorrectness of keyword based search, we propose an efficient semantic search method based on a lightweight mobile ontology designed for smart mobile devices. In addition, we implement a prototype of semantic search engine working on ...
- ArticleDecember 2012
Context-Aware Mashup for Smart Mobile Devices
APSCC '12: Proceedings of the 2012 IEEE Asia-Pacific Services Computing Conference)December 2012, Pages 179–186https://doi.org/10.1109/APSCC.2012.15A mobile mash up should be able to compose the component services in accordance with a user's context. We propose a context-aware mash up method for smart mobile devices. For this purpose, a novel user request model is presented and the conventional ...
- ArticleNovember 2012
Socially-Enriched semantic mashup of web APIs
ICSOC'12: Proceedings of the 10th international conference on Service-Oriented ComputingNovember 2012, Pages 389–403https://doi.org/10.1007/978-3-642-34321-6_26As Web mashups are becoming one of the salient tools for providing composite services that satisfy users' requests, there have been many endeavors to enhance the process of recommending the most adequate mashup to users. However, previous approaches ...
- research-articleFebruary 2012
An efficient access control based on role attributes in service oriented environments
ICUIMC '12: Proceedings of the 6th International Conference on Ubiquitous Information Management and CommunicationFebruary 2012, Article No.: 73, Pages 1–7https://doi.org/10.1145/2184751.2184839There are difficulties in applying role-based dynamic delegation to Web services. This is because XACML, which is a standard language for describing the access policies of Web services, does not support the dynamic delegation between roles in different ...