作者机构：
[Tan, LS; Wang, HW; Zukerman, M] Cent China Normal Univ, Dept Comp Sci, Wuhan 430079, Peoples R China.
会议名称：
19th International Teletraffic Congress (ITC 19)
会议时间：
AUG 29-SEP 02, 2005
会议地点：
Beijing, PEOPLES R CHINA
会议主办单位：
Cent China Normal Univ, Dept Comp Sci, Wuhan 430079, Peoples R China.
会议论文集名称：
TELETRAFFIC SCIENCE AND ENGINEERING
关键词：
resilient packet ring (RPR) network;spatial reuse;proportional controller;control packet;distributed bandwidth fair allocation (DBFA) algorithm;fairness control field (FCF)
摘要：
Despite the rapid development of the resilient packet ring (RPR) technology, the available bandwidth allocation algorithms for RPR networks do not provide satisfactory solutions to meet their performance requirements. To attack this problem, this paper proposes an algorithm, which we call the distributed bandwidth fair allocation (DBFA) algorithm, that achieves the key RPR performance goals, i.e., fairness, high utilization and spatial reuse. The algorithm is distributed and uses a simple proportional control mechanism to allocate bandwidth among competing flows in a weighted manner. In order to realize global coordination on the entire RPR ring, one global control packet traverses around the ring to make every node on the ring dynamically adjust its sending rate, so it eventually achieves its fair share of the ring bandwidth. As a result, global fairness as well as high utilization and maximal spatial reuse over the RPR ring can be achieved. Simulation results verify the satisfactory performance of the DBFA algorithm.
期刊：
Proceedings of 2005 International Conference on Machine Learning and Cybernetics, Vols 1-9,2005年:5077-5081
通讯作者：
Liu, HY
作者机构：
[Liu, HY; Zhang, H] Cent China Normal Univ, Dept Comp Sci, Wuhan 430079, Peoples R China.
通讯机构：
[Liu, HY] C;Cent China Normal Univ, Dept Comp Sci, Wuhan 430079, Peoples R China.
关键词：
video retrieval;sports video;multimodal analysis;visual and auditory information processing;text extraction
摘要：
An advanced sports video browsing and retrieval system based on multimodal analysis, SportsBR, is proposed in this work. Its main features include event-based sports video browsing and keyword-based sports video retrieval. The paper first defines the basic structure of our SportsBR system, and then introduces a novel approach that integrates multimodal analysis, such as visual streams analysis, speech recognition, speech signal processing and text extraction to realize event-based video clips selection. The experimental results for sports video of world cup football games indicate that multimodal analysis is effective for video browsing and retrieval by quickly browsing event-based video clips and inputting keywords according to a predefined sports vocabulary database. The system is proved to be helpful and effective for the overall understanding of the sports video content.
期刊：
Lecture Notes in Computer Science,2005年3794:103-112 ISSN：0302-9743
通讯作者：
Zhao, SF
作者机构：
[Zhao, SF] Cent China Normal Univ, Dept Comp Sci, Wuhan 430079, Peoples R China.;Univ Tsukuba, Grad Sch Syt & Informat Engn, Tsukuba, Ibaraki, Japan.
通讯机构：
[Zhao, SF] C;Cent China Normal Univ, Dept Comp Sci, Wuhan 430079, Peoples R China.
会议名称：
Mobile Ad-hoc and Sensor Networks, First International Conference, MSN 2005, Wuhan, China, December 13-15, 2005, Proceedings
摘要：
Energy efficiency is of vital importance for wireless ad hoc networks (WANETs). In order to keep the nodes active as long as possible, it is essential to maximize the lifetime of a given multicast tree. However, hop count is generally an important metric for WANETs, and any efficient routing protocol should have low hop count. The problem of generating the optimized energy efficient routing protocol for WANETs is NP-hard. Any workable heuristic solution is, therefore, highly desirable in this case. To take into account the tradeoff between the lifetime and the hop count in routing of multicast tree in WANETs, this paper defines a new metric termed energy efficiency metric (EEM) function. Theoretical analyses show that it is efficient to fully characterize the energy efficiency of WANETs. A distributed routing algorithm called Maximum Lifetime and Minimum Hop-count (MLMH) is then proposed with the aim that extends the lifetime while minimizes the maximal hop count of a source-based multicast tree in WANETs. Simulation results give sound evidence that our algorithm achieves a balance between the hop count and the lifetime of the multicast tree successfully.
期刊：
Parallel and Distributed Computing, Applications and Technologies, PDCAT Proceedings,2005年2005:728-732
通讯作者：
Liu, YH
作者机构：
[Tan, LS; Liu, YH; Xu, KH; Cao, JW] Cent China Normal Univ, Dept Comp Sci, Wuhan 430079, Peoples R China.
通讯机构：
[Liu, YH] C;Cent China Normal Univ, Dept Comp Sci, Wuhan 430079, Peoples R China.
会议名称：
6th International Conference on Parallel and Distributed Computing, Applications and Technologies (PDCAT 2005)
会议时间：
DEC 05-08, 2005
会议地点：
Dalian, PEOPLES R CHINA
会议主办单位：
Cent China Normal Univ, Dept Comp Sci, Wuhan 430079, Peoples R China.
摘要：
A novel model has been proposed in this paper, it considers a pair of clients as the smallest gene, which was assigned secretion respectively based on proper modification of ant algorithm. We transformed the problem of client selecting server to that of server selecting client. And we adopted GT-ITM as Internet topology generator to generate transit-stub model topology for simulation. In the case of large-scale network topology, the simulation results show that the modified ant algorithm performs better than other heuristic algorithms such as the widest path and the optimized widest path ones.
关键词：
compensation;control system design;data loss;Internet;Internet-based process control;time delay
摘要：
Introducing the Internet into process control systems has brought a lot of benefits and some difficulties to control engineers as well. The major challenge of Internet-based process control systems is how to deal with Internet time delay and data loss. This paper analyses Internet communication features and proposes a control structure with a variable sampling time to overcome the Internet transmission delay. In order to take advantage of the structure fully and attack the major difficulties, two compensation elements have been designed and implemented in the system. These two compensators are located in the feedback and feedforward channels in the architecture respectively. Our simulation and experimental results illustrate that the control structure and two compensation elements can efficiently deal with the Internet time delay and data loss. Our simulation results also show that the time delay and data loss in the feedforward channel seem to cause more serious influence on the control performance and is more difficult to be compensated for.
作者机构：
[Zukerman, M] Univ Melbourne, Australian Res Council, Special Res Ctr Ultrabroadband informat Networks, Natl ICT Australia,EEE Dept, Parkville, Vic 3010, Australia.;Cent China Normal Univ, Dept Comp Sci, Wuhan 430079, Peoples R China.
通讯机构：
[Zukerman, M] U;Univ Melbourne, Australian Res Council, Special Res Ctr Ultrabroadband informat Networks, Natl ICT Australia,EEE Dept, Parkville, Vic 3010, Australia.
期刊：
Lecture Notes in Computer Science,2005年3399:991-1002 ISSN：0302-9743
通讯作者：
Xiong, NX
作者机构：
[Xiong, NX] Wuhan Univ, Comp Sch, Wuhan 430079, Peoples R China.;Cent China Normal Univ, Dept Comp Sci, Wuhan 430079, Peoples R China.;Hong Kong Polytech Univ, Dept Comp, Kowloon, Hong Kong, Peoples R China.;City Univ Hong Kong, SMIEEE, Dept Comp Sci, Kowloon, Hong Kong, Peoples R China.
作者机构：
[Wang Yuan-zhen; Zhang Zhi-bing; Li Hua-yang] College of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei, China;[Yi Bao-lin] School of Computer Science and Technology, Huazhong Normal University, Wuhan, Hubei, China
关键词：
data mining;rule extraction;neural network;fuzzy logic;genetic algorithm
摘要：
This paper combines computational intelligence tools: neural network, fuzzy logic, and genetic algorithm to develop a data mining architecture (NFGDM), which discovers patterns and represents them in understandable forms. In the NFGDM, input data are preprocessed by fuzzification, the preprocessed data of input variables are then used to train a radial basis probabilistic neural network to classify the dataset according to the classes considered. A rule extraction tech nique is then applied in order to extract explicit knowledge from the trained neural networks and represent it in the form of fuzzy if-then rules. In the final stage, genetic algorithm is used as a rule-pruning module to climinate those weak rules that are still in the rule bases. Comparison with some known neural network classifier, the architecture has fast learning speed, and it is characterized by the incorporation of the possibility information into the consequents of classification rules in human understandable forms. The experiments show that the NFGDM is more efficient and more robust than traditional decision tree method.
期刊：
Lecture Notes in Computer Science,2005年3711:106-113 ISSN：0302-9743
通讯作者：
Liu, HY
作者机构：
[Liu, HY] Cent China Normal Univ, Dept Comp Sci, Wuhan 430079, Hubei, Peoples R China.;Wuhan Univ, Sch Business, Finance Dept, Wuhan 430072, Hubei, Peoples R China.
通讯机构：
[Liu, HY] C;Cent China Normal Univ, Dept Comp Sci, Wuhan 430079, Hubei, Peoples R China.
会议名称：
Entertainment Computing - ICEC 2005, 4th International Conference, Sanda, Japan, September 19-21, 2005, Proceedings
摘要：
An advanced content-based sports video browsing and retrieval system, SportsVBR, is proposed in this work. Its main features include event-based sports video browsing and keyword-based sports video retrieval. The paper first defines the basic structure of our SportsVBR system, and then introduces a novel approach that integrates multimodal analysis, such as visual streams analysis, speech recognition, speech signal processing and text extraction to realize event-based video clips selection. The experimental results for sports video of world cup football games indicate that multimodal analysis is effective for video browsing and retrieval by quickly browsing event-based video clips and inputting keywords according to a predefined sports vocabulary database. The system is proved to be helpful and effective for the overall understanding of the sports video content.
期刊：
2005 INTERNATIONAL SYMPOSIUM ON COMPUTER SCIENCE AND TECHNOLOGY, PROCEEDINGS,2005年:568-573
通讯作者：
Xiao, Debao
作者机构：
[Xiao, Debao; Huang, Ling; Xiao, DB] Cent China Normal Univ, Dept Comp Sci, Wuhan 430079, Peoples R China.
通讯机构：
[Xiao, Debao] C;Cent China Normal Univ, Dept Comp Sci, Wuhan 430079, Peoples R China.
会议名称：
2005中国宁波国际计算机科学与技术学术大会
会议时间：
2005-10-20
会议地点：
中国浙江宁波
关键词：
middleware;network management;ad hoc
摘要：
The application of the middleware in constructing the ad hoc network protocol stack Would be effect to figure out and solve problems existed in the ad hoc network, Such as the mobility management, power management.. QoS guarantee, networking, etc. In this paper, the architecture and specialties of the ad hoc network are simply introduced, according to which, a network stack structure for the ad hoc is advanced later, and a graph based cluster algorithm for managing the ad hoc network is provided, finally, we discussed a middleware based network management model for ad hoc.
