Name
Title | ||
|---|---|---|
Bridging the gap between web service-based context suppliers and ontology-based context consumers |
Abstract | ||
|---|---|---|
Almost all context-aware systems have two indispensable components - context provider and context consumer. The increased diversity and quantity of context information with the increased handling complexity call for a specific component to transfer context information from context providers to high-level context consumers. In this paper, we present a the context mapping middleware to bridge the gap between Web service-based context providers and ontology-based context consumers. Its function is to populate the internal context ontology with externally supplied context information as indicated by a context mapping specification language. In order to transfer and write context information correctly and timely in a distributed computing environment, we define and analyze context retrogress, context refresh interval, and context latency under different kinds of mapping execution modes, i.e., (a)synchronous execution of multiple Web service-to-ontology mapping units and (a)synchronous Web service read and ontology write. Our performance study in a real setting shows that asynchronous execution of multiple Web service-to-ontology mapping units and asynchronous Web service read and ontology write can obtain smaller lower bound of context refresh interval; and synchronous execution of multiple mapping units and synchronous read-write can obtain relatively smaller context latency. |
Year | DOI | Venue |
|---|---|---|
2010 | 10.1145/2108616.2108653 | ICUIMC |
Keywords | Field | DocType |
context mapping middleware,web service-based context supplier,context information,context provider,web service-based context provider,context retrogress,context latency,context consumer,high-level context consumer,context mapping specification language,context refresh interval,ontology-based context consumer,distributed computing environment,specification language,middleware,web service,kernel method,ontology mapping,lower bound,face recognition | Specification language,Middleware,Asynchronous communication,Ontology,World Wide Web,Distributed Computing Environment,Computer science,Latency (engineering),Bridging (networking),Web service | Conference |
Citations | PageRank | References |
0 | 0.34 | 14 |
Authors | ||
2 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Yuanping Li | 1 | 48 | 6.10 |
| Ling Feng | 2 | 1166 | 136.15 |