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作者： Azevedo, Roger Biswas, Gautam Bohus, Dan Carmichael, Ted Finlayson, Mark A. Hadzikadic, Mirsad Havasi, Catherine Horvitz, Eric Kanda, Takayuki Koyejo, Oluwasanmi Lawless, William F. Lenat, Doug Meneguzzi, Felipe Mutlu, Bilge Oh, Jean Pirrone, Roberto Raux, Antoine Sofge, Donald A. Sukthankar, Gita Van Durme, Benjamin Yorke-Smith, Neil Department of Educational and Counseling Psychology McGill University Canada Center for Intelligent Systems Vanderbilt University United States Microsoft Research Redmond United States Department of Software and Information Systems University of North Carolina Charlotte United States Complex Systems Institute United States Computer Science and Artificial Intelligence Laboratory Massachusetts Institute of Technology United States Media Lab. Massachusetts Institute of Technology United States ATR Intelligent Robotics and Communication Laboratories Kyoto Japan Department of Electrical and Computer Engineering University of Texas Austin United States Department of Mathematics Paine College Augusta GA United States Cycorp Austin TX United States Robotics Institute Carnegie Mellon University United States Department of Computer Sciences University of Wisconsin Madison United States University of Palermo Italy Honda Research Institute United States Navy Center for Applied Research in Artificial Intelligence Naval Research Laboratory Washington DC United States Department of Electrical Engineering and Computer Science University of Central Florida United States Department of Computer Science Johns Hopkins University United States American University of Beirut Lebanon SRI International's Artificial Intelligence Center United States

The Association for the Advancement of Artificial Intelligence (AAAI) presented the 2010 Fall Symposium Series on November 11-13, 2010. The eight symposia included Cognitive and Metacognitive Educational systems, Commonsense Knowledge, Complex Adaptive systems: Resilience, Robustness, and Evolvability, Computational Models of Narrative, Dialog with Robots, Manifold Learning and Its Applications, Proactive Assistant Agents and Quantum Informatics for Cognitive, Social, and Semantic Processes. Cognitive and Metacognitive Educational systems aimed to provide a comprehensive definition of metacognitive educational systems that is inclusive of the theoretical, architectural, and educational aspects of this field. The AAAI Commonsense Knowledge Fall Symposium had the goal of bringing together the diverse elements of this community whose work benefits from or contributes to the representation of general knowledge about the world. One of the specific goals of Proactive symposium was to gather the researchers from various projects in assistant agents to share their wisdom in retrospect.

关键词： Semantics

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PAC-Bayesian analysis of contextual bandits

PAC-Bayesian analysis of contextual bandits

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25th Annual Conference on Neural Information Processing systems 2011, NIPS 2011

作者： Seldin, Yevgeny Auer, Peter Laviolette, François Shawe-Taylor, John Ortner, Ronald Max Planck Institute for Intelligent Systems Tübingen Germany Department of Information Technology Montanuniversität Leoben Austria Département D'informatique Université Laval QC Canada Department of Computer Science University College London United Kingdom

ISBN: (纸本)9781618395993

We derive an instantaneous (per-round) data-dependent regret bound for stochastic multiarmed bandits with side information (also known as contextual bandits). pThe scaling of our regret bound with the number of states (contexts) N goes as √NIpt (S;A), where Ipt (S;A) is the mutual information between states and actions (the side information) used by the algorithm at round t. If the algorithm uses all the side information, the regret bound scales as √N lnK, where K is the number of actions (arms). However, if the side information Ipt (S;A) is not fully used, the regret bound is significantly tighter. In the extreme case, when Ipt (S;A) = 0, the dependence on the number of states reduces from linear to logarithmic. Our analysis allows to provide the algorithm large amount of side information, let the algorithm to decide which side information is relevant for the task, and penalize the algorithm only for the side information that it is using de facto. We also present an algorithm for multiarmed bandits with side information with O(K) computational complexity per game round.

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Learning output kernels with block coordinate descent

Learning output kernels with block coordinate descent

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28th International Conference on Machine Learning, ICML 2011

作者： Dinuzzo, Francesco Ong, Cheng Soon Gehler, Peter Pillonetto, Gianluigi Max Planck Institute for Intelligent Systems 72076 Tübingen Germany Department of Computer Science ETH Zürich 8092 Zürich Switzerland Max Planck Institute for Informatics 66123 Saarbrücken Germany Department of Information Engineering University of Padova 35131 Padova Italy

ISBN: (纸本)9781450306195

We propose a method to learn simultaneously a vector-valued function and a kernel between its components. The obtained kernel can be used both to improve learning performance and to reveal structures in the output space which may be important in their own right. Our method is based on the solution of a suitable regularization problem over a reproducing kernel Hilbert space of vector-valued functions. Although the regularized risk functional is non-convex, we show that it is invex, implying that all local minimizers are global minimizers. We derive a block-wise coordinate descent method that efficiently exploits the structure of the objective functional. Then, we empirically demonstrate that the proposed method can improve classification accuracy. Finally, we provide a visual interpretation of the learned kernel matrix for some well known datasets. Copyright 2011 by the author(s)/owner(s).

关键词： Learning systems

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Micro E-board: An Interactive Teaching Aid Using Mobile Devices

Micro E-board: An Interactive Teaching Aid Using Mobile Devi...

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International Conference on intelligent Networking and Collaborative systems (INCOS)

作者： Hiroaki Nishino Shota Hidaka Tsuneo Kagawa Kouichi Utsumiya Department of Computer Science and Intelligent Systems Oita University Oita Japan Institute for Hypernetwork Society Oita Japan

Advanced computer technology has a potential power to completely change education style. Ubiquitous computing framework allows students to learn anywhere at any time. It also enables a teacher to electronically organize some materials on site and present them according to students' situation. In this paper, we describe an interactive teaching aid called Micro E-Board designed and implemented to solve some problems existing in currently available e-learning technology. The proposed system allows users to easily build an intuitive e-learning environment anywhere at any time based on mobile technology and prompts interactions between a teacher and students with a set of easy-to-use functions.

关键词： Servers Electronic learning Data communication Wireless communication Bluetooth Rendering (computer graphics)

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A Cascade Traffic Accident Recognition System Using Multi-sensor Cooperation

A Cascade Traffic Accident Recognition System Using Multi-se...

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International Conference on computer Communication and Management（ICCCM 2011）

作者： Ilkyun Jung Seung-Hun Kim Minho Lee Sung-Bae Cho Intelligent Robotics Research Center Korea Electronics Technology Institute School of Electronics Engineering Kyungpook University Department of Computer Science Yonsei University

This paper presents a cascade system to reliably recognize traffic accidents using multi-sensor cooperation. The system is consisted of a MSN (Master Sensor Node) and number of SN (Sensor Node)s with both low cost DSP and CCD. Each SN computes probabilities of accident with a set of images over time taken at different locations. Once more than one accident being reported, MSN is stimulated and conducts a synthetic decision making process with various information taken from each SN related to the accident. Experimental results show that the proposed cascade system drastically enhance reliability of traffic accident recognition and enables to be set in real environments.

关键词： traffic accident recognition, cascade system, multi-senor cooperation, SN, MSN

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Wireless sensor network system for supporting nursing context-awareness

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International Journal of Autonomous and Adaptive Communications systems 2011年第4期4卷 361-382页

作者： Naya, Futoshi Ohmura, Ren Miyamae, Masakazu Noma, Haruo Kogure, Kiyoshi Imai, Michita NTT Communication Science Laboratories 2-4 Hikaridai Seika-cho Soraku-gun Kyoto 619-0237 Japan Department of Computer Science Toyohashi University of Technology 1-1 Hibari-ga-oka Tenpaku-cho Toyohashi Aichi 441-8580 Japan WESTUNITIS Co. Ltd. 3F Funakoshi Center Bldg. 2-4-6 Funakoshi-cho Chuo-ku Osaka 540-0036 Japan Intelligent Robotics and Communication Laboratories Advanced Telecommunications Research Institute International 2-2-2 Hikaridai Seika-cho Soraku-gun Kyoto 619-0288 Japan Department of Robotics Kanazawa Institute of Technology 3-1 Yatsukaho Hakusan Ishikawa 924-0838 Japan Department of Information and Computer Science Keio University 3-14-1 Hiyoshi Kohoku-ku Yokohama Kanagawa 223-8522 Japan

We developed a wireless sensor network system for supporting context-awareness of nursing activities in hospitals. Our system is aimed at automated recording of nursing work, providing context-aware services to nurses and visualising analytical results from nursing histories. The system consists of heterogeneous devices utilising three kinds of wireless networks: a ZigBeeTM (ZigBee is a registered trademark of the ZigBee Alliance)-based location sensor network, a BluetoothTM (Bluetooth is a trademark owned by Bluetooth SIG, Inc., USA)-based body-area sensor network for capturing nurse activities and a Wi-FiTM (Wi-Fi is a registered trademark of the Wi-Fi Alliance)-based network for communication between PDAs worn by nurses and a server PC. We illustrate the layered structure of the entire system as well as algorithms for estimating nurse locations and activities during their operations in a hospital. These estimated results are managed by a real-time database system with which nurse contexts can be visualised in real time on a server PC and/or PDAs. We also show empirical results evaluating the performance of retrieving, analysing and visualising detailed nursing contexts. Copyright © 2011 Inderscience Enterprises Ltd.

关键词： Wireless local area networks (WLAN)

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Sonar sensor based relative localization for leader-following formation control

Sonar sensor based relative localization for leader-followin...

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International Conference on Control, Automation and systems ( ICCAS)

作者： In-Sung Choi Jong-Suk Choi Woo-Jin Chung Department of Intelligent Systems & Robotics Korea University Seoul South Korea Cognitive Robot Center Korea Institute of Science and Technology Seoul South Korea

Using sonar sensors is one of the most popular sensing methods for mobile robots, since the sensor is inexpensive and will simply give distance information. However, in general, the sonar sensor has difficulty in measuring the accurate direction of object while it is used to avoid obstacles such as large boxes, walls and so on since it has a large angle of beam. Nevertheless, this paper proposes to use the sonar sensors for localizing other robots as well as detecting obstacles, and represents the simplest algorithm to obtain the relative information: heading angle, bearing angle and distance between the leader and follower. A control algorithm for keeping (d, φ)-formation is presented by obtaining linear and angular velocities of the follower robot.

关键词： Robot sensing systems Robot kinematics Lead Mobile robots Sonar detection

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Entity Disambiguation Using a Markov-Logic Network 5

Entity Disambiguation Using a Markov-Logic Network

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5th International Joint Conference on Natural Language Processing, IJCNLP 2011

作者： Dai, Hong-Jie Tsai, Richard Tzong-Han Hsu, Wen-Lian Department of Computer Science National Tsing Hua University 300 No. 101 Section 2 Kuang-Fu Road Hsinchu Taiwan Intelligent Agent Systems Lab. Institute of Information Science Academia Sinica 128 Academia Road Sec.2 Nankang Taipei Taiwan Department of Computer Science and Engineering Yuan Ze University 135 Yuan-Tung Road Chungli Taoyuan Taiwan

ISBN: (纸本)9789744665645

Entity linking (EL) is the task of linking a textual named entity mention to a knowledge base entry. It is a difficult task involving many challenges, but the most crucial problem is entity ambiguity. Traditional EL approaches usually employ different constraints and filtering techniques to improve performance. However, these constraints are executed in several different stages and cannot be used interactively. In this paper, we propose several disambiguation formulae/features and employ a Markov logic network to model interweaved constraints found in one type of EL, gene mention linking. To assess our systems effectiveness in different applications, we adopt two evaluation schemes: article-wide and instance-based precision/recall/F-measure. Experimental results show that our system outperforms the baseline systems and state-of-the-art systems under both evaluation schemes. © 2011 AFNLP

关键词： computer circuits

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Vibration Control of a Flexible Timoshenko Beam under Unknown External Disturbances

Vibration Control of a Flexible Timoshenko Beam under Unknow...

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第三十届中国控制会议

作者： Shuzhi Sam GE Institute of Intelligent Systems and Information Technology School of Computer Science and Engineering University of Electronic Science and Technology of China Department of Electrical ＆ Computer Engineering The National University of Singapore

＜正＞In this paper,we present the vibration control of a Timoshenko beam under the external unknown spatiotemporally varying distributed disturbance and time-varying boundary *** model of the Timoshenko beam extracted from a class of flexible systems is represented by a hybrid model including both nonhomogeneous partial differential equations（PDEs） and ordinary differential equations（ODEs）.To suppress the vibration of the system and reduce the effects of the external disturbances,adaptive boundary control is proposed based on Lyapunov’s direct *** the proposed boundary control strategy,the states of the system are proven to be uniformly ultimately bounded and converge to a small neighborhood of zero by choosing the design *** simulations are shown to illustrate the effectiveness of the proposed adaptive boundary control.

关键词： Adaptive Control Boundary Control Timoshenko beam Partial Differential Equation（PDE）

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Fuzzy model-based servo control for discrete-time nonlinear systems with constraints

Fuzzy model-based servo control for discrete-time nonlinear ...

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作者： Ohtake, Hiroshi Tanaka, Kazuo Wang, Hua O. Department of Mechanical Information Science and Technology Graduate School of Computer Science and Systems Engineering Kyushu Institute of Technology 680-4 Kawazu Iizuka Fukuoka 820-8502 Japan Department of Mechanical Engineering and Intelligent Systems University of Electro-Communications 1-5-1 Chofugaoka Chofu Tokyo 182-8585 Japan Department of Mechanical Engineering Boston University 110 Cummington Street Boston MA 02215 United States

ISBN: (纸本)9783902661937

This paper presents servo control for discrete-time nonlinear systems with constraints on inputs and states using the fuzzy model-based control approach. Firstly, the nonlinear error system is constructed based on error vector between state and the target point by utilizing the input difference between current input and cancellation input. Secondly, the error system is exactly converted into a Takagi-Sugeno fuzzy model utilizing sector nonlinearity approach. Finally, the fuzzy servo controller is designed by simultaneously solving servo controller design condition and the constraint conditions on inputs and states. The design conditions are given in the form of LMI. Servo control with constraints on inputs and states is achieved by the designed servo controller. Design examples illustrate the utility of this approach. © 2011 IFAC.

关键词： Controllers

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