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Displaying 1-25 out of 25 total
A Pattern Mining Approach to Sensor-Based Human Activity Recognition
Found in: IEEE Transactions on Knowledge and Data Engineering
By Tao Gu,Liang Wang,Zhanqing Wu,Xianping Tao,Jian Lu
Issue Date:September 2011
pp. 1359-1372
Recognizing human activities from sensor readings has recently attracted much research interest in pervasive computing due to its potential in many applications, such as assistive living and healthcare. This task is particularly challenging because human a...
 
Recognizing Multiuser Activities Using Wireless Body Sensor Networks
Found in: IEEE Transactions on Mobile Computing
By Tao Gu,Liang Wang,Hanhua Chen,Xianping Tao,Jian Lu
Issue Date:November 2011
pp. 1618-1631
The advances of wireless networking and sensor technology open up an interesting opportunity to infer human activities in a smart home environment. Existing work in this paradigm focuses mainly on recognizing activities of single user. In this work, we foc...
 
Privacy Protection in Participatory Sensing Applications Requiring Fine-Grained Locations
Found in: Parallel and Distributed Systems, International Conference on
By Kai Dong, Tao Gu, Xianping Tao, Jian Lu
Issue Date:December 2010
pp. 9-16
The emerging participatory sensing applications have brought a privacy risk where users expose their location information. Most of the existing solutions preserve location privacy by generalizing a precise user location to a coarse-grained location, and he...
 
Scheduling Divisible Loads from Multiple Input Sources in MapReduce
Found in: 2013 IEEE 16th International Conference on Computational Science and Engineering (CSE)
By Tao Gu,Qun Liao,Yulu Yang,Tao Li
Issue Date:December 2013
pp. 1263-1270
MapReduce is a programming model for data-intensive applications. The performance of MapReduce is greatly affected by the scheduling efficiency, which needs to consider both the parallelism of processing and overhead of data transmission. Lots of researche...
 
Complete Bipartite Anonymity: Confusing Anonymous Mobility Traces for Location Privacy
Found in: 2012 IEEE 18th International Conference on Parallel and Distributed Systems (ICPADS)
By Kai Dong,Tao Gu,Xianping Tao,Jian Lu
Issue Date:December 2012
pp. 205-212
Using mobile devices, people can easily obtain their location information, and access a wide range of location based services (LBSs). Many existing LBSs rely in accurate, continuous, and real-time streams of location information to provide quality of servi...
 
Real-Time Activity Recognition in Wireless Body Sensor Networks: From Simple Gestures to Complex Activities
Found in: Real-Time Computing Systems and Applications, International Workshop on
By Liang Wang, Tao Gu, Hanhua Chen, Xianping Tao, Jian Lu
Issue Date:August 2010
pp. 43-52
Real-time activity recognition using body sensor networks is an important and challenging task and it has many potential applications. In this paper, we propose a real time, hierarchical model to recognize both simple gestures and complex activities using ...
 
epSICAR: An Emerging Patterns based approach to sequential, interleaved and Concurrent Activity Recognition
Found in: Pervasive Computing and Communications, IEEE International Conference on
By Tao Gu, Zhanqing Wu, Xianping Tao, Hung Keng Pung, Jian Lu
Issue Date:March 2009
pp. 1-9
Recognizing human activities from sensor readings has recently attracted much research interest in pervasive computing. This task is particularly challenging because human activities are often performed in not only a simple (i.e., sequential), but also a c...
 
Managing Quality of Context in Pervasive Computing
Found in: Quality Software, International Conference on
By Yingyi Bu, Tao Gu, Xianping Tao, Jun Li, Shaxun Chen, Jian Lu
Issue Date:October 2006
pp. 193-200
Context-awareness plays a key role in a paradigm shift from traditional desktop styled computing to emerging pervasive computing. Many context-aware systems have been built to achieve the vision of pervasive computing and alleviate the human attention bott...
 
Application Based Distance Measurement for Context Retrieval in Ubiquitous Computing
Found in: Mobile and Ubiquitous Systems, Annual International Conference on
By Shaxun Chen, Tao Gu, Xianping Tao, Jian Lu
Issue Date:August 2007
pp. 1-7
Building large-scale smart environments is one of the long-term goals of ubiquitous computing. The widespread of context information in such environments necessitates an effective context retrieval mechanism. This paper proposes a novel context retrieval m...
 
Peer-to-Peer Context Reasoning in Pervasive Computing Environments
Found in: Pervasive Computing and Communications, IEEE International Conference on
By Tao Gu, Hung Keng Pung, Daqing Zhang
Issue Date:March 2008
pp. 406-411
In this paper, we propose a peer-to-peer approach to derive and obtain additional context data from low-level context data that may be spread over multiple domains in pervasive computing environments. In this system, peers are self-organized into a semanti...
 
Energy balanced data collection in Wireless Sensor Networks
Found in: 2012 20th IEEE International Conference on Network Protocols (ICNP)
By Ning Jin, Kaiji Chen, Tao Gu
Issue Date:October 2012
pp. 1-10
In this paper, we investigate the energy balanced data collection problem in WSNs, aiming to balance the energy consumption among all the sensor nodes in the data propagation process. Energy balanced data collection can potentially save energy consumption ...
 
Minimizing inter-server communications by exploiting self-similarity in online social networks
Found in: 2012 20th IEEE International Conference on Network Protocols (ICNP)
By Hanhua Chen, Hai Jin, Ning Jin, Tao Gu
Issue Date:October 2012
pp. 1-10
Efficiently operating on relevant data for users in large-scale online social network (OSN) systems is a challenging problem. Storage systems used by popular OSN systems often rely on key-value stores, where randomly partitioning the data of users among se...
 
BloomCast: Efficient and Effective Full-Text Retrieval in Unstructured P2P Networks
Found in: IEEE Transactions on Parallel and Distributed Systems
By Hanhua Chen,Hai Jin,Xucheng Luo,Yunhao Liu,Tao Gu,Kaiji Chen,Lionel M. Ni
Issue Date:February 2012
pp. 232-241
Efficient and effective full-text retrieval in unstructured peer-to-peer networks remains a challenge in the research community. First, it is difficult, if not impossible, for unstructured P2P systems to effectively locate items with guaranteed recall. Sec...
 
Data Management for Context-Aware Computing
Found in: Embedded and Ubiquitous Computing, IEEE/IFIP International Conference on
By Wenwei Xue, Hungkeng Pung, Wenlong Ng, Tao Gu
Issue Date:December 2008
pp. 492-498
We envisage future context-aware applications will dynamically adapt their behaviors to various context data from sources in wide-area networks, such as the Internet. Facing the changing context and the sheer number of context sources, a data management sy...
 
Secure RFID Identification and Authentication with Triggered Hash Chain Variants
Found in: Parallel and Distributed Systems, International Conference on
By Tong-Lee Lim, Tieyan Li, Tao Gu
Issue Date:December 2008
pp. 583-590
In this paper, we propose two RFID identification and authentication schemes based on the previously proposed Triggered Hash Chain scheme by Henrici and Muller [1]. The schemes are designed to mitigate the shortcomings observed in the Triggered Hash Chain ...
 
A two-tier semantic overlay network for P2P search
Found in: Parallel and Distributed Systems, International Conference on
By Tao Gu, Daqing Zhang, Hung Keng Pung
Issue Date:December 2007
pp. 1-8
This paper proposes a two-tier semantic peer-to-peer network that facilitates efficient search for context information in wide-area networks. Context data with the same semantics are grouped together into a one-dimensional semantic ring space in the upper-...
 
PAS: Prediction-based Adaptive Sleeping for Environment Monitoring in Sensor Networks
Found in: Parallel Processing Workshops, International Conference on
By Zheng Yang, Bin Xu, Jingyao Dai, Tao Gu
Issue Date:September 2007
pp. 66
Energy efficiency has proven to be an important factor dominating the working period of WSN surveillance systems. Intensive studies have been done to provide energy efficient power management mechanisms. In this paper, we present PAS, a Prediction-based Ad...
 
KQStream: Kindred-Based QoS-Aware Live Media Streaming in Heterogeneous Peer-to-Peer Environments
Found in: Parallel Processing Workshops, International Conference on
By Yuan He, Tao Gu, Jiang Guo, Jingyao Dai
Issue Date:September 2007
pp. 56
This paper presents the design of a Kindred-based QoS-aware Live Media Streaming (KQStream) system in heterogeneous peer-to-peer environments. Motivated by the Multiple Description Coding technique, we propose a novel kindred-based approach to construct a ...
 
Ontology Modeling of a Dynamic Protocol Stack
Found in: Local Computer Networks, Annual IEEE Conference on
By LiFeng Zhou, Hung Keng Pung, Lek Heng Ngoh, Tao Gu
Issue Date:November 2006
pp. 353-360
This paper proposes a formal approach for protocol information modeling and validation leveraging on ontological techniques. We demonstrate the advantage of our approach through prototyping a protocol management system for representation of communication p...
 
A Peer-to-Peer Architecture for Context Lookup
Found in: Mobile and Ubiquitous Systems, Annual International Conference on
By Tao Gu, Edmond Tan, Hung Keng Pung, Daqing Zhang
Issue Date:July 2005
pp. 333-341
<p>As computing technology moves towards pervasive computing, many applications are beginning to make use of context information to adapt to and respond appropriately to their environments. Such a trend necessitates efficient search for context infor...
 
Toward an OSGi-Based Infrastructure for Context-Aware Applications
Found in: IEEE Pervasive Computing
By Tao Gu, Hung Keng Pung, Da Qing Zhang
Issue Date:October 2004
pp. 66-74
Future applications and services must be sensitive to their changing contexts in highly dynamic environments, such as in mobile and pervasive computing, and adapt accordingly. In this paper, we propose an OSGi-based context-aware infrastructure for buildin...
 
Ontology Based Context Modeling and Reasoning using OWL
Found in: Pervasive Computing and Communications Workshops, IEEE International Conference on
By Xiao Hang Wang, Da Qing Zhang, Tao Gu, Hung Keng Pung
Issue Date:March 2004
pp. 18
In this paper we propose an OWL encoded context ontology (CONON) for modeling context in pervasive computing environments, and for supporting logic-based context reasoning. CONON provides an upper context ontology that captures general concepts about basic...
 
A Loose-Pattern Process Approach to Clustering Fuzzy Data Sets
Found in: IEEE Transactions on Pattern Analysis and Machine Intelligence
By Tao Gu,B. Dubuisson
Issue Date:March 1985
pp. 366-372
A loose-pattern process approach to clustering sets consists of three main computations: loose-pattern reject option, tight-pattern classifcation, and loose-pattern assigning classes. The loose-pattern rejection is implemented using a rule based on q neare...
 
Schema matching for context-aware computing
Found in: Proceedings of the 10th international conference on Ubiquitous computing (UbiComp '08)
By Hungkeng Pung, Paulito P. Palmes, Tao Gu, Wenwei Xue
Issue Date:September 2008
pp. N/A
Context-aware computing is a key paradigm of ubiquitous computing in which applications automatically adapt their operations to dynamic context data from multiple sources. Managing a number of distributed sources, a middleware that facilitates the developm...
     
Intelligent Simulation on Phosphate in One Trough Based on Neural Network
Found in: Genetic and Evolutionary Computing, International Conference on
By Li-fang Chen, Liang Chen, Jian-tao Gu, Xiao-mei Yuan
Issue Date:October 2009
pp. 492-495
At present, phosphate in one trough is a research focus. Traditional research methods have unfavorable factors, such as time-consuming, material costs, pollution, unsafe and so on. In this paper, intelligent simulation system is constructed based on neural...
 
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