File(s) under permanent embargo
A smart web service based on the context of things
journal contribution
posted on 2012-01-01, 00:00 authored by J He, Y Zhang, Guangyan HuangGuangyan Huang, J CaoCombining the Semantic Web and the Ubiquitous Web, Web 3.0 is for things. The Semantic Web enables human knowledge to be machine-readable and the Ubiquitous Web allows Web services to serve any thing, forming a bridge between the virtual world and the real world. By using context, Web services can become smarter-that is, aware of the target things' or applications' physical environments, or situations and respond proactively and intelligently. Existing methods for implementing context-aware Web services on Web 2.0 mainly enumerate different implementations corresponding to different attribute values of the context, in order to improve the Quality of Services (QoS). However, things in the physical world are extremely diverse, which poses new problems for Web services: it is difficult to unify the context of things and to implement a flexible smart Web service for things. This article proposes a novel smart Web service based on the context of things, which is implemented using a REpresentational State Transfer for Things (Thing-REST) style, to tackle the two problems. In a smart Web service, the user's description (semantic context) and sensor reports (sensing context) are two channels for acquiring the context of things which are then employed by ontology services to make the context of things machine-readable. With guidance of domain knowledge services, event detection services can analyze things' needs particularly, well through the context of things. We then propose a Thing-REST style to manage the context of things and user context, and to mashup Web services through three structures (i.e., chain, select, and merge) to implement smart Web services. A smart plant watering-service application demonstrates the effectiveness of our method. © 2012 ACM.
History
Journal
ACM transactions on internet technologyVolume
11Issue
3Article number
13Pagination
1 - 23Publisher
ACM Special Interest GroupLocation
New York, N.Y.Publisher DOI
ISSN
1533-5399eISSN
1557-6051Language
engPublication classification
C Journal article; C1.1 Refereed article in a scholarly journalCopyright notice
2012, ACM Special Interest GroupUsage metrics
Categories
Keywords
context-awarenesscontext of thingssmart Web servicesREpresentational State Transfer (REST)Science & TechnologyTechnologyComputer Science, Information SystemsComputer Science, Software EngineeringComputer ScienceDesignExperimentationInformation SystemsArtificial Intelligence and Image ProcessingDistributed Computing
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC