检索结果-内蒙古大学图书馆

2013 AAAI Spring Symposium

作者： Holz, Dirk Iocchi, Luca Van Der Zant, Tijn Autonomous Intelligent Systems Group Department of Computer Science VI University of Bonn Germany Dept. of Computer Control and Management Engineering Sapienza University of Rome Italy Dept. of Artificial Intelligence Faculty of Natural Sciences University of Groningen Netherlands

ISBN: (纸本)9781577356011

The dynamical and uncertain environments of domestic service robots, which includehumans, require rethinking of the benchmarking principles for testing these robots. Since 2006 RoboCup@Home has used statistical procedures to track and steer the progress ofdomestic service robots. This paper explains the procedures and shows outcomes of these international benchmarking efforts. Although aspects such as shopping in a supermarket receive a fair amount of attention in the robotics community, the authors believe that a recently implemented test is the most important outcome of RoboCup@Home, namely the benchmarking of robot cognition. © 2013, Association for the Advancement of artificial intelligence.

关键词： Benchmarking

来源：评论

学校读者我要写书评

暂无评论

Kernel-based discriminative re-ranking for spoken command understanding in HRI

Kernel-based discriminative re-ranking for spoken command un...

引用

13th International Conference of the Italian Association for Artificial Intelligence, AI*IA 2013

作者： Basili, Roberto Bastianelli, Emanuele Castellucci, Giuseppe Nardi, Daniele Perera, Vittorio Dept. of Enterprise Engineering University of Roma la Sapienza Rome Italy Dept. of Civil Engineering and Computer Science Engineering University of Roma la Sapienza Rome Italy Dept. of Electronic Engineering University of Roma Tor Vergata Rome Italy Dept. of Computer Control and Management Engineering University of Roma la Sapienza Rome Italy

ISBN: (纸本)9783319035239

Speech recognition is being addressed as one of the key technologies for a natural interaction with robots, that are targeting in the consumer market. However, speech recognition in human-robot interaction is typically affected by noisy conditions of the operational environment, that impact on the performance of the recognition of spoken commands. Consequently, finite-state grammars or statistical language models even though they can be tailored to the target domain exhibit high rate of false positives or low accuracy. In this paper, a discriminative re-ranking method is applied to a simple speech and language processing cascade, based on off-the-shelf components in realistic conditions. Tree kernels are here applied to improve the accuracy of the recognition process by re-ranking the nbest list returned by the speech recognition component. The rationale behind our approach is to reduce the effort for devising domain dependent solutions in the design of speech interfaces for language processing in human-robot interactions. © Springer International Publishing Switzerland 2013.

关键词： Speech recognition

来源：评论

学校读者我要写书评

暂无评论

Improvements in BondLib, the Modelica Bond Graph Library

Improvements in BondLib, the Modelica Bond Graph Library

引用

EUROSIM Congress on Modelling and Simulation (EUROSIM)

作者： Alberto de la Calle François E. Cellier Luis J. Yebra Sebastián Dormido Automatic Control Group CIEMAT-Plataforma Solar de Almería Tabernas Spain ETH Zürich Institute of Computational Science Zürich Switzerland Dept. of Computer Science and Automatic Control UNED Madrid Spain

Bond graphs are a natural method for representing power flows in physical systems and they represent the most basic graphical paradigm that is still fully object-oriented. This paper describes a new version of BondLib, the Modelica bond graph library. The library was created for Modelica with graphical Dymola support, and its object-oriented design allows the wrapping of bond graph models offering a user-friendly environment for modeling physical system in multiple energy domains. The new improvements try to reduce the deployment and training cost for end-users by making the error diagnostics easier.

关键词： Mathematical model Connectors Object oriented modeling Libraries Equations Junctions Computational modeling

来源：评论

学校读者我要写书评

暂无评论

Batch Gating for Data Association in Monocular SLAM

Batch Gating for Data Association in Monocular SLAM

引用

2013 2nd International Conference on Chemical,Mechanical and Materials Engineering(CMME 2013)

作者： Edmundo Guerra Rodrigo Munguia Yolanda Bolea Antoni Grau Automatic Control Dept Technical University of Catalonia Computer Science Dept CUCEIUniversity of Guadalajara

ISBN: (纸本)9783037856864

This work describes the development and implementation of a single-camera SLAM system,introducing a novel data validation algorithm.A 6-DOF monocular SLAM method developed is based on the Delayed Inverse-dept.(DI-D) Feature Initialization,with the addition of a new data association batch validation technique,the Highest Order Hypothesis Compatibility Test,*** DI-D initializes new features in the system defining single hypothesis for the initial dept. of features by stochastic *** HOHCT is based on evaluation of statistically compatible hypotheses,and search algorithm designed to exploit the Delayed Inversedept. technique *** with real data are presented in order to validate the performance of the system.

关键词： Monocular SLAM robotics only-bearing sensor computer science

来源：评论

学校读者我要写书评

暂无评论

Algebraic Synthesis for Online Adaptation of Dependable Discrete control Systems

引用

IFAC Proceedings Volumes 2013年第22期46卷 61-66页

作者： Christian Hillmann Olaf Stursberg Control and System Theory Dept. of Electrical Engineering and Computer Science University of Kassel (Germany)

Common practice in industrial design of discrete controllers as well as in most synthesis procedures advocated for discrete control in academia is to create the control logic and to transfer it into a PLC language before process start-up. Changes in the operational constraints of the controlled process (e.g. of available resources, nominal set-points, occurrences of failures) have to be accounted for by dedicated alternative routines, i.e. dependability is restricted to variations which are envisaged during design. In contrast, the approach proposed in this paper operates online on a model of the uncontrolled process to compute a control strategy that is adapted to the current set of constraints. By using algebraic computations largely resembling techniques for discrete-time continuous-valued controllers, perceived process variations (including newly defined control-goals) are first assessed with respect to the existence of a feasible successful control strategy, before such a dependable and optimal strategy is computed.

关键词： Adaptation Algebraic approaches Automata control system synthesis.

来源：评论

学校读者我要写书评

暂无评论

Analytical modeling of link duration for vehicular ad hoc networks in urban environment

Analytical modeling of link duration for vehicular ad hoc ne...

引用

10th ACM International Workshop on Vehicular Inter-Networking, Systems, and Applications, VANET 2013

作者： Hu, Miao Zhong, Zhangdui Zhu, Haoqing Ni, Minming Chang, Chih-Yung State Key Lab. of Rail Traffic Control and Safety Beijing Jiaotong University Beijing China Dept. of Computer Science and Information Engineering Tamkang University Taipei Taiwan

ISBN: (纸本)9781450320733

Link duration determines the performance of many vehicular applications, especially for urban vehicular wireless communication networks. However, the theoretical analysis on link properties is always complicated, since parameters that should be considered include the inter-vehicle distance, the vehicle speed, the turning ratios in the intersection, the influence of traffic lights in the intersections, and the signal decay caused by the roadside buildings etc. To reduce the analytical complexity, most of the previous works proposed preliminary analysis on link duration property by considering some parameters. Even though some works considered all parameters, their assumptions on the parameters setting were somewhat ideal. For example, the events of meeting traffic lights for two consecutive vehicles in a communication route path were always assumed independent with each other, which is different from the actual situations. This paper proposes a discrete Markov process-based analytical model on link duration by considering a relatively complete set of parameters, including the influence of the inter-vehicle distance, vehicle speed, turning ratios in the intersection, traffic lights in the intersection, and the non-line-of-sight transmission for the intersection. Especially, the theoretical study on the link duration is based on a more realistic traffic lights scenario description model. Finally, simulations are carried to verify the accuracy of our analytical work.

关键词： Analytical models

来源：评论

学校读者我要写书评

暂无评论

control of Uncertain Nonlinear Systems using Ellipsoidal Reachability Calculus

引用

IFAC Proceedings Volumes 2013年第23期46卷 50-55页

作者： L. Asselborn D. Groß O. Stursberg Institute of Control and System Theory Dept. of Electrical Eng. and Computer Science University of Kassel (Germany)

This paper proposes an approach to algorithmically synthesize control strategies for discrete-time nonlinear uncertain systems based on reachable set computations using the ellipsoidal calculus. For given ellipsoidal initial sets and bounded ellipsoidal disturbances, the proposed algorithm iterates over conservatively approximating and LMI-constrained optimization problems to compute stabilizing controllers. The method uses first-order Taylor approximation of the nonlinear dynamics and a conservative approximation of the Lagrange remainder. An example for illustration is included.

关键词： Ellipsoidal calculus nonlinear uncertain dynamics conservative linearization reach set approximation

来源：评论

学校读者我要写书评

暂无评论

Development of parallel manipulator sit to stand assistive device for elderly people

Development of parallel manipulator sit to stand assistive d...

引用

2013 IEEE Workshop on Advanced Robotics and Its Social Impacts, ARSO 2013

作者： Salah, Omar Asker, Ahmed Fath El-Bab, Ahmed M. R. Assal, Samy M. F. Ramadan, Ahmed A. Sessa, Salvatore Abo-Ismail, Ahmed Egypt-Japan University of Science and Technology New Borg-El-Arab city Alexandria Egypt Mechanical Engineering Department Faculty of Engineering Assiut University Egypt Department of Production Engineering and Mechanical Design Faculty of Engineering Tanta University Alexandria Egypt Computer and Automatic Control Dept. Faculty of Engineering Tanta University Tanta Egypt Mechatronics and Robotics Dept. Egypt-Japan University of Science and Technology Egypt School of Creative Science and Engineering Waseda University Tokyo 168-8480 Japan

ISBN: (纸本)9781479923694

This paper describes a novel mobility assistive device under development in the Egypt-Japan University of science and Technology (E-JUST). The proposed system can help patients who do not have enough physical strength on the lower limbs during sit to stand due to aging, diseases such as polymyositis and myopathy, and joint replacement surgery complications. It can follow the natural pattern of human motion during sit to stand providing assistance force under the shoulder. The overall device is compact and employees a parallel mechanism which provide more stiffness. Several experiments were carried out in a VICON room to calculate the human motion posture while sit to stand motion in addition estimate the trajectory of the end effector during assisting. computer simulation was built to verify the performance of the proposed system with the reference trajectory. © 2013 IEEE.

关键词： Mechanisms

来源：评论

学校读者我要写书评

暂无评论

Experiments with multifractal analysis for fabric wrinkledness assessment

Experiments with multifractal analysis for fabric wrinkledne...

引用

IEEE 9th International Conference on Computational Cybernetics, ICCC 2013

作者： Fazekas, Zoltán Talu, Ştefan Szalay, László Institute for Computer Science and Control Systems and Control Laboratory Budapest Hungary Technical University of Cluj-Napoca Faculty of Mechanical Engineering Dept. of AET Cluj-Napoca Romania INNOVATEXT Textile Engineering and Testing Institute Co. Budapest Hungary

ISBN: (纸本)9781479900633

Objective assessment of fabric wrinkledness using multifractal methodology is addressed in the paper. As a first experiment with this methodology in this application field, AATCC standard durable press rating replicas, which are used by textile experts worldwide, were photographed and then segmented using common image processing methods. The resulting skeleton images were then analyzed using the multifractal methodology. © 2013 IEEE.

关键词： Fractals

来源：评论

学校读者我要写书评

暂无评论

Hierarchical Distributed control for Interconnected Systems

引用

IFAC Proceedings Volumes 2013年第13期46卷 419-425页

作者： Martin Jilg Olaf Stursberg Institute of Control and System Theory Dept. of Electrical Eng. and Computer Science University of Kassel 34121 Kassel Germany

Most approaches concerning distributed control for physically interconnected systems assume a flat controller structure, i.e. the subsystems exchange state information directly and in each timestep. In this paper, ideas from distributed control, network topology optimization and optimal control are combined in order to construct a distributed two-layer state feedback control structure. A decomposition algorithm is proposed which groups the subsystems into distinct clusters. Within each cluster, information is exchanged between the subsystems in every timestep. On the upper layer of the hierarchy, informaton is exchanged between the clusters with a lower frequency. The underlying communication topology is optimized to obtain a compromise between control performance and communication cost. This leads to reduced communication between the subsystems compared to existing hierarchical approaches.

关键词： Hierarchical control interconnected systems quadratic performance indices

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：