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American Control Conference (ACC)

作者： G. Fiengo J.A. Cook J.W. Grizzle Giovanni Fiengo is with the Computer and System Engineering Department Universita di Napoli Federico II Naples Italy Ford Research Laboratory Dearborn MI USA Electrical Engineering and Computer Science Department University of Michigan Ann Arbor MI USA

This paper describes model-based, active control of an aftertreatment system for a spark ignition engine equipped with a three-way catalyst (TWC) and pre- and post-TWC oxygen sensors. A controller is designed to manage the oxygen storage level in the TWC in order to maximize the simultaneous conversion efficiencies of oxides of nitrogen, NO/sub x/, unburned hydrocarbons, HC, and carbon monoxide, CO. Linear exhaust gas oxygen sensors (UEGOs) are used to measure pre- and post-catalyst A/F. The pre-catalyst A/F measurement is assumed to be biased in addition to being corrupted by zero-mean noise, while the post-catalyst measurement is assumed to be only corrupted by zero-mean noise. A series controller configuration is adopted. The upstream controller provides relatively rapid response to disturbances, while the downstream controller uses an extended Kalman filter (observer) to estimate the relative oxygen level. The estimated value of oxygen storage is then used to regulate the relative oxygen level of the TWC to 50%. The performance and robustness of the proposed control system in the face of noise and model uncertainty are evaluated through extensive simulations.

关键词： Noise measurement Noise level Sparks Ignition Engines Sensor phenomena and characterization Sensor systems Nitrogen Hydrocarbons Gas detectors

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Intelligent diagnosis method for plant machinery using wavelet transform, genetic programming and possibility theory

Intelligent diagnosis method for plant machinery using wavel...

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IEEE Region 10 International Conference TENCON

作者： Peng Chen T. Horie T. Toyota Zhengjia He Faculty of Computer Science and System Engineering Kyushu Institute of Technology Iizuka Fukuoka Japan Japan Condition Diagnosis Technology Laboratory Incorporated Kitakyushu Japan Department of Mechanical Engineering Xi‘an Jiaotong University Xi‘an China

This paper proposes an intelligent diagnosis method for plant machinery using wavelet transform (WT) genetic programming (GP) and possibility theory. The WT is used to extract feature spectra of each machine state from measured vibration signal for distinguishing faults. Excellent symptom parameters (SP) for detecting fault states are automatically generated by GP. The membership functions of symptom parameters are established using possibility theory for resolving the ambiguous diagnosis problems. The methods proposed in this paper are verified by applying them to the fault diagnosis of gear equipment.

关键词： Machine intelligence Machinery Wavelet transforms Genetic programming Possibility theory Vibration measurement Fault diagnosis Feature extraction Fault detection Signal resolution

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Anaphora resolution in Chinese financial news for information extraction

Anaphora resolution in Chinese financial news for informatio...

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World Congress on Intelligent Control and Automation (WCICA)

作者： Ning Wang Chunfa Yuan K.F. Wong Wenjie Li Department of Computer Science & Technology State Key Laboratory of Intelligent Technology and System Tsinghua University Beijing China Department of System Engineering & Engineering Management Chinese University of Hong Kong Hong Kong China Department of Computing Hong Kong Polytechnic University Hong Kong China

Anaphora always appears in the text and it is a hot topic in linguistics and computational linguistics area. Anaphora resolution is an important part of the information extraction, and it is also important to discourse understanding, machine translation, abstract extraction and so on. After studying on the text in Chinese financial domain, an anaphora resolution system is proposed, which is built on a set of filtration rules and a set of evaluation rules. The experiment result shows the precision is 91.4%.

关键词： Data mining Laboratories Intelligent systems computer science systems engineering and theory Research and development management Computational linguistics Filtration Intelligent control Automation

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An effective content-based visual image retrieval system

An effective content-based visual image retrieval system

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IEEE Annual International computer Software and Applications Conference (COMPSAC)

作者： Xiuqi Li Shu-Ching Chen Mei-Ling Shyu B. Furht NSF/FAU Multimedia Laboratory Florida Atlantic University Boca Raton FL USA Distributed Multimedia Information System Laboratory School of Computer Science Florida International University Miami FL USA Department of Electrical and Computer Engineering University of Miami Coral Gables FL USA

An effective content-based visual image retrieval system is presented. This system consists of two main components: visual content extraction and indexing, and query engine. Each image in the image database is represented by its visual features: color and spatial information. The system uses a color label histogram with only thirteen bins to extract the color information from an image in the image database. A unique unsupervised segmentation algorithm combined with the wavelet technique generates the spatial feature of an image automatically. The resulting feature vectors are relatively low in dimensions compared to those in other systems. The query engine employs a color filter and a spatial filter to dramatically reduce the search range. As a result, queue processing is speeded up. The experimental results demonstrate that our system is capable of retrieving images that belong to the same category.

关键词： Image retrieval Content based retrieval Feature extraction Data mining Indexing Engines Histograms Shape Multimedia systems Image databases

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A multimedia semantic model for RTSP-based multimedia presentation systems

A multimedia semantic model for RTSP-based multimedia presen...

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International Symposium on Multimedia Software engineering

作者： Shu-Ching Chen Sheng-Tun Li Mei-Ling Shyu Chengjun Zhan Chengcui Zhang Distributed Multimedia Information System Laboratory School of Computer Science Florida International University Miami FL USA Department of Information Management National Kaohsiung First University of Science and Technology Kaohsiung Taiwan Department of Electrical and Computer Engineering University of Miami Coral Gables FL USA

ISBN: (纸本)0769518575

An abstract multimedia semantic model called the multimedia augmented transition network (MATN) model is proposed to model the RTSP-based (real-time streaming protocol) multimedia presentation systems. RTSP provides a set of methods to support the functionality of "VCR-like" remote control on the client side so that users are allowed to control playback of the streaming media. The MATN model is used to model RTSP actions as well as temporal relations and synchronization control of the media streams. The advantages of using the MATN model are its simplicity, effectiveness, and ease of modification. Furthermore, a formal definition of the MATN model and modeling of RTSP actions using the MATN model are presented in detail.

关键词： Multimedia systems Streaming media Protocols Power system modeling Real time systems Quality of service Management information systems Laboratories computer science Information management

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computer-aided plant enterprise safety management system (CAPE-SAFE) - Design framework

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systems engineering 2002年第2期5卷 109-122页

作者： Gabbar, Hossam A. Chung, P.W.H. Shimada, Yukiyasu Suzuki, Kazuhiko Department of Systems Engineering Okayama University 3-1-1 Tsushima-Naka Okayama 700-8530 Japan Department of Computer Science Loughborough University Leicestershire LE11 3TU United Kingdom Frontier Collaborative Research Center Tokyo Institute of Technology Japan Department of Computer Science Loughborough University Systems Engineering Department Okayama University System Analysis Laboratory Systems Engineering Department Okayama University

Recent researches in the area of safety engineering highlighted the role of automated (computer-aided) tools in managing plant enterprise safety activities. This research has been carried out as collaboration with industry to design a computer-aided plant enterprise safety management system called CAPE-SAFE. The solution has been proposed to fulfill the need for standard and integrated safety management system that covers all aspects of plant enterprise safety. The proposed solution is integrated with other systems and components within plant enterprise engineering environment (PEEE) to enable exchanging and sharing lifecycle information and knowledge. The information system structure of the proposed solution has been presented as well as the design framework of the system components and modules. Hydrodesulfurization (HDS) continuous plant is used as a case study to illustrate the mechanism of CAPE-SAFE and to describe the interaction with other components within PEEE. The proposed solution will help in reducing the overall operating cost as well as the risk associated with plant operation. © 2002 Wiley Periodicals, Inc.

关键词： systems engineering

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Design and implementation of CMOS LVDS 2.5 Gb/s transmitter and 1.3 Gb/s receiver for optical interconnections

Design and implementation of CMOS LVDS 2.5 Gb/s transmitter ...

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2001 IEEE International Symposium on Circuits and systems, ISCAS 2001

作者： Lee, Jaeseo Lim, Jae-Won Song, Sung-Jun Song, Sung-Sik Lee, Wang-Joo Yoo, Hoi-Jun Semiconductor System Laboratory Department of Electrical Engineering and Computer Science Korea Advanced Institute of Science and Technology Kusong-dong Yusong-gu Taejon Korea Republic of

ISBN: (纸本)0780366859

Design and implementation of a 2.5 Gb/s CMOS transmitter and a 1.3 Gb/s receiver for optical interconnections are presented. The transmitter accepts LVDS signals and converts it into optical signals. The receiver receives the optical signals and recovers it to LVDS signals. They are designed and implemented in standard 0.25 um CMOS process using 1-poly and 5-metal layers. The 850 nm VCSEL is assumed as a light source. Maximum transmit data rate of 2.5 Gb/s and receive data rate of 1.3 Gb/s are obtained over a wide range of common mode operation. At supply voltage of 2.5 V, the transmitter and receiver consume less then 50 nW and 51 nW of power, respectively. © 2001 IEEE.

关键词： Optical interconnects

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An adaptive optimal multimedia network transmission control scheme 2nd

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2nd IEEE Pacific-Rim Conference on Multimedia, IEEE-PCM 2001

作者： Shyu, Mei-Ling Chen, Shu-Ching Luo, Hongli Department of Electrical and Computer Engineering University of Miami Coral GablesFL33124 United States Distributed Multimedia System Laboratory Florida International University School of Computer Science MiamiFL33199 United States

ISBN: (纸本)3540426809

In this paper, we present a sender-driven adaptive optimal multimedia network transmission control scheme, which takes into account the buffer occupancy and network delay to maximize the utilization of network resources. For this purpose, adaptive network resource optimization with quadratic costs is used in the proposed scheme to provide the minimal allocation of the bandwidth and achieve the maximal utilization of the client buffer. Simulation results show that the transmission rate can be dynamically adjusted at the server according to the changing network delays and buffer packet sizes at the client to avoid the loss of packets, and at the same time to achieve the minimal bandwidth allocation at maximal utilization of the client buffer. © Springer-Verlag Berlin Heidelberg 2001.

关键词： Bandwidth

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Optimal resource utilization in multimedia transmission

Optimal resource utilization in multimedia transmission

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2001 IEEE International Conference on Multimedia and Expo, ICME 2001

作者： Shyu, Mei-Ling Chen, Shu-Ching Luo, Hongli Department of Electrical and Computer Engineering University of Miami Coral GablesFL33124 United States Distributed Multimedia Information System Laboratory School of Computer Science Florida International University MiamiFL33199 United States

ISBN: (纸本)0769511988

Efficient utilization of network resources is essential in the provision of quality multimedia services. Different approaches have been proposed to shape the multimedia streams as a transmission schedule with smoothed traffic burst. In this paper, we concentrate on the problem of efficient use of bandwidth and client buffer. For this purpose, an optimal transmission schedule is proposed to provide the minimal allocation of the bandwidth and maximal utilization of the client buffer. Simulation results show that the shaping results obtained can dynamically adjust the transmission rate according to the buffer packet sizes and playback rates at the client to avoid the loss of packets, and at the same time achieve the minimal bandwidth allocation and maximal utilization of the client buffer.

关键词： Bandwidth

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Supporting Information Reuse for Video Data Indexing by Using Color Information 3

Supporting Information Reuse for Video Data Indexing by Usin...

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3rd International Conference on Information Reuse and Integration, IRI 2001

作者： Zhang, Chengcui Luo, Lin Chen, Shu-Ching Shyu, Mei-Ling Distributed Multimedia Information System Laboratory School of Computer Science Florida International University MiamiFL33199 United States Department of Electrical and Computer Engineering University of Miami Coral GablesFL33124 United States

ISBN: (纸本)9781618398390

In this paper, an object tracking framework assisted by image segmentation and color indexing techniques to support information reuse for video data is proposed. In order to obtain more accurate results of object tracking, a color indexing method called Color Label Criteria (CLC) is adopted to relax some of the restrictions and assumptions in object tracking in our previous work with low additional cost. Our experiment results on a real video sequence show that the CLC color indexing method is very helpful to achieve more robust object tracking. © (2001) by the International Society for computers and Their Applications All rights reserved.

关键词： Image segmentation

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