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Reasoning about uncertain contexts in pervasive computing environments

A. Ranganathan, J. Al-Muhtadi, R.H. Campbell
2004 IEEE pervasive computing  
A prototype pervasive computing infrastructure, Gaia, allows applications and services to reason about uncertainty using mechanisms such as probabilistic logic, fuzzy logic, and Bayesian networks.  ...  Our model represents any piece of information whose truth value is potentially uncertain as a predicate.  ...  Reasoning about uncertainty has helped make components in our pervasive computing environment more robust and more capable of adapting to changing dynamics.  ... 
doi:10.1109/mprv.2004.1316821 fatcat:5c3pcce2preonhy6zol3iaobdu

Reasoning about Context in Uncertain Pervasive Computing Environments [chapter]

Pari Delir Haghighi, Shonali Krishnaswamy, Arkady Zaslavsky, Mohamed Medhat Gaber
2008 Lecture Notes in Computer Science  
Context-awareness is a key to enabling intelligent adaptation in pervasive computing applications that need to cope with dynamic and uncertain environments.  ...  The FSI model integrates fuzzy logic principles into the Context Spaces (CS) model, a formal and general context reasoning and modeling technique for pervasive computing environments.  ...  The FSI technique incorporates the CS model's underlying theoretical basis for supporting context-aware and pervasive computing environments while using fuzzy logic to model and reason about vague and  ... 
doi:10.1007/978-3-540-88793-5_9 fatcat:qu66lxpu3fbkvfzeh5fijgxdbm

Multimodality in Pervasive Environment [chapter]

Marco Anisetti, Valerio Bellandi, Paolo Ceravolo, Ernesto Damiani
2010 Smart Innovation, Systems and Technologies  
Future pervasive environments are expected to immerse users in a consistent world of probes, sensors and actuators.  ...  Multimodal interfaces combined with social computing interactions and high-performance networking can foster a new generation of pervasive environments.  ...  in pervasive computing applications.  ... 
doi:10.1007/978-3-642-14619-0_24 fatcat:aetz5njidzha5gol2lyq4w3mne

The ECORA framework: A hybrid architecture for context-oriented pervasive computing

Amir Padovitz, Seng W. Loke, Arkady Zaslavsky
2008 Pervasive and Mobile Computing  
and reasoning in uncertain conditions.  ...  This paper presents the ECORA framework for context-aware computing, which is designed with a focus on reasoning about context under uncertainty and addressing issues of heterogeneity, scalability, communication  ...  Background Much research in pervasive computing aims towards operating successfully in open, heterogeneous and context-aware computing environments [14, 34, 39] .  ... 
doi:10.1016/j.pmcj.2007.10.002 fatcat:owc6vhfymjed7ke3pcxuztq3ji

Modeling uncertainty in context-aware computing

Binh An Truong, Young-Koo Lee, Sung-Young Lee
2005 Fourth Annual ACIS International Conference on Computer and Information Science (ICIS'05)  
Besides, we also support the uncertain reasoning in context-aware applications in a flexible and adaptive manner.  ...  In this paper, we propose a novel approach to model the uncertain context.  ...  Related work There has been research in addressing the issue of uncertainty in pervasive computing environment.  ... 
doi:10.1109/icis.2005.89 dblp:conf/ACISicis/TruongLL05 fatcat:lnsznleav5deddjwgjbaorgbxa

Modeling and reasoning about uncertainty in context-aware systems

Binh An Truong, Young-Koo Lee, Sung-Young Lee
2005 IEEE International Conference on e-Business Engineering (ICEBE'05)  
In this paper, we propose a unified context model to support representation and reasoning about uncertain context.  ...  Besides, our recipe of supporting the probabilistic reasoning is flexible and adaptive to the highly variable features of pervasive computing environments.  ...  The learning makes the Bayesian reasoning more robust and adaptive in highly variable pervasive computing environments.  ... 
doi:10.1109/icebe.2005.90 dblp:conf/icebe/TruongLL05 fatcat:3yuxakjievcczmln5aqthi55u4

A Unified Context Model: Bringing Probabilistic Models to Context Ontology [chapter]

Binh An Truong, YoungKoo Lee, Sung Young Lee
2005 Lecture Notes in Computer Science  
Ontology is a promising tool to model and reason about context information in pervasive computing environment. However, ontology does not support representation and reasoning about uncertainty.  ...  In this paper, we present an ongoing research on context modeling which follows the ontology-based approach while supports representation and reasoning about uncertain context.  ...  as follows: o The generic ontology is a high level ontology which captures general context knowledge about physical world in pervasive computing environment. o The domain-specific ontologies are a collection  ... 
doi:10.1007/11596042_59 fatcat:laor75swynefviq53l2hveoane

Ambient Middleware for Context-Awareness (AMiCA)

Karen Lee, Tom Lunney, Kevin Curran, Jose Santos
2009 International Journal of Ambient Computing and Intelligence (IJACI)  
Research shows that existing middleware solutions need to evolve, thus permitting the dissemination of omnipresent attributes within the Ubiquitous and Pervasive computing environments of today.  ...  Context and context-awareness have been central issues in Ambient Intelligent (AmI) research for the last decade.  ...  in any pervasive context-aware system.  ... 
doi:10.4018/jaci.2009070105 fatcat:bq6nn2jv6bgojnkathszprs3iy

Semantic Space: An Infrastructure for Smart Spaces

Xiaohang Wang, Jin Song Dong, ChungYau Chin, S. Hettiarachchi, Daqing Zhang
2004 IEEE pervasive computing  
He received his PhD in computing from the University of Queensland. Contact him at 10 Kent Ridge Crescent,  ...  Using ontologies to model contexts in pervasive computing environments offers several advantages: • By allowing pervasive computing entities to share a common understanding of context structure, OWL ontologies  ...  The context model Context presentation is an important part of pervasive computing environ- ments.  ... 
doi:10.1109/mprv.2004.1321026 fatcat:mmxmgcila5fbnfrihfosnmd6iq

A survey on dependability improvement techniques for pervasive computing systems

WenHua Yang, YePang Liu, Chang Xu, S. C. Cheung
2015 Science China Information Sciences  
First, pervasive computing systems' perceived environments, which are also called their contexts, can vary intensively, and thus have a great impact on the systems' dependability.  ...  Last but not least importantly, pervasive computing systems interact with their environments frequently.  ...  Besides, pervasive computing systems sometimes react to their environments by uncertain flawed actors.  ... 
doi:10.1007/s11432-015-5300-3 fatcat:jzhn2leyvbbi7fpjiyddapzeti

Application on Pervasive Computing in Healthcare – A Review

Paramita Sarkar, Ditipriya Sinha
2017 Indian Journal of Science and Technology  
Background/Objectives: Application of pervasive computation in healthcare is an interdisciplinary research domain for both the medical and computer domains.  ...  In this paper, we exhibit a descriptive study of different features of pervasive healthcare in recent years.  ...  Fuzzy Reasoning Previous papers are not concerned about the representation of vague and uncertain data in inference system.  ... 
doi:10.17485/ijst/2017/v10i3/110619 fatcat:cciamdk3hvebdlvb7ir6xqcy6m

Leveraging the subtleties of location

Simon Dobson
2005 Proceedings of the 2005 joint conference on Smart objects and ambient intelligence innovative context-aware services: usages and technologies - sOc-EUSAI '05  
Virtually all pervasive computing systems use location as a major parameter governing their behaviour.  ...  We explore how this richness arises, how it can be used to improve reasoning, and the challenges that this gives rise to.  ...  Fully pervasive reasoning Is there an ideal location system for pervasive computing?  ... 
doi:10.1145/1107548.1107597 fatcat:j3e54ghvkzer5hwyx7leswv7je

Smart u-Things and Ubiquitous Intelligence [chapter]

Jianhua Ma
2005 Lecture Notes in Computer Science  
Turing in "Computing Machinery and Intelligence" in 1950 -Ubiquitous Intelligence (UI) or Pervasive Intelligence ( ) from 2004, by Ma -Residing in everyday objects, environments, systems, ourselves  ...  -How correctly be S(t) determined using available but incomplete & uncertain contexts? -What are consequences of situation judgment errors to context-aware/situated u-things?  ...  Error(t) Exception(t)  Smarter Cities, Smarter Worlds -Chaired by Jianhua Ma Read the papers below and access the related websites to learn more about smart u-things include smart objects, smart environment  ... 
doi:10.1007/11599555_75 fatcat:pvfuogqwhjb4hbrflrg6uqj44q

A service‐oriented middleware for building context‐aware services

Tao Gu, Hung Keng Pung, Da Qing Zhang
2005 Journal of Network and Computer Applications  
Today, building context-aware services is a complex task due to the lack of an adequate infrastructure support in pervasive computing environments.  ...  We describe our context model and the middleware architecture, and present a performance study for our prototype in a smart home environment. q  ...  in pervasive computing environments.  ... 
doi:10.1016/j.jnca.2004.06.002 fatcat:kaohvxlyyzafvcebev62fcfxxa

Semantic web technologies in pervasive computing: A survey and research roadmap

Juan Ye, Stamatia Dasiopoulou, Graeme Stevenson, Georgios Meditskos, Efstratios Kontopoulos, Ioannis Kompatsiaris, Simon Dobson
2015 Pervasive and Mobile Computing  
detailed contexts.  ...  Pervasive and sensor-driven systems are by nature open and extensible, both in terms of input and tasks they are required to perform.  ...  Secondly, the combination of open-and closed-world reasoning is desirable when reasoning about context in the pervasive domain.  ... 
doi:10.1016/j.pmcj.2014.12.009 fatcat:dehfs5inkbexpagk265co5tvxi
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