检索结果-内蒙古大学图书馆

Consumer Communications and Networking Conference, CCNC IEEE

作者： Tharinda Nishantha Vidanagama Hidenori Nakazato Graduate School of Global Information and Telecommunication Studies Waseda University Tokyo Japan Department of Computing and Information Systems Wayamba University of Sri Lanka Kuliyapitiya Sri Lanka

Future home appliances will have many useful built-in functions. A communication network that allows a user to access these built-in functions and to control the appliances is highly desirable. An ad hoc network can be easily deployed to connect these home appliances. For such a home network, ease of use must be given higher consideration. This paper discusses description based ad-hoc network routing where the nodes are given descriptions or keywords such as living room TV, kitchen oven etc. as identifiers. We propose three description based routing mechanisms: single routing cache, directional routing cache, and proportional-directional routing cache. Through simulation, we show that in all three methods the message delivery is 100% success in our configuration, but the amount of misdirected messages experienced by each method is different. The proportional-directional routing cache shows the least message misdirection with most preferable resource usage.

关键词： Ad hoc networks Routing Home appliances Peer to peer computing Proposals Home automation Communications Society Computer networks Telecommunication computing Information systems

来源：评论

学校读者我要写书评

暂无评论

Motion planning for dynamic knotting of a flexible rope with a high-speed robot arm

Motion planning for dynamic knotting of a flexible rope with...

引用

2010 IEEE/RSJ International Conference on Intelligent Robots and systems

作者： Yuji Yamakawa Akio Namiki Masatoshi Ishikawa Department of Information Physics and Computing Graduate School of Information Science and Technology University of Tokyo Bunkyo Tokyo Japan Department of Mechanical Engineering Division of Artificial Systems Science Graduate School of Engineering Chiba University Chiba Japan

In this paper, we propose an entirely new strategy for dexterous manipulation of a linear flexible object with a high-speed robot arm. The strategy involves manipulating the object at high speed. By moving the robot at high speed, we can assume that the dynamic behavior of the linear flexible object can be obtained by performing algebraic calculations of the robot motion. Based on this assumption, we derive a model of the linear flexible object and confirm the validity of the proposed model. Finally, we perform simulation of dynamic knotting based on the proposed model. Results of an experiment demonstrating dynamic knotting with a high-speed robot arm are shown.

关键词： Joints Robot kinematics Dynamics Manipulator dynamics Trajectory

来源：评论

学校读者我要写书评

暂无评论

Searching for Historical Events on a Large-Scale Web Archive

Searching for Historical Events on a Large-Scale Web Archive

引用

Sixth International Conference on Semantics,Knowledge and Grids(第六届语义、知识与网格国际会议 SKG 2010)

作者： Lian’en Huang Wu Lin Xiaoming Li Internet Research and Engineering Center Peking University Shenzhen Graduate School Shenzhen Guangd Institute of Network Computing and Information Systems School of EECS Peking University Beijing 100

Finding knowledge on the Web has long been a hot research issue. Today the Web has become a popular medium for publishing news and opinion articles, which are important carriers of human knowledge, especially of social knowledge. Developing techniques of automatically collecting and analysing these articles on a large scale is thus desirable. In this paper we propose techniques for searching for events on the Web, and our techniques have been tested on a large scale web archive. Given an event, or a news topic cared by many people, the purpose of this paper is to find out near-all news stories related to it. First, a novel domain-independent approach of extracting news stories from web pages is proposed which is based on anchor text and is applicable to most websites. Experiments show our approach performs good and is better than another approach we have found. Second, a domain-based method of representing events is proposed in which hundreds of keywords are used to represent an event and compose the query expression. This situation of retrieval is different from most search engines’ in that the number of keywords is large. We then propose several retrieval algorithms based on BM25 for the method. Evaluation show that these algorithms perform better than unmodified BM25 in our situation and the best one is chosen as the algorithm of our system. Finally an experimental system has been built on a collection of 2 billion web pages and the running performance is reported, which shows the effectiveness of our approaches.

关键词： Web pages Search engines Algorithm design and analysis HTML Knowledge engineering Feature extraction Navigation

来源：评论

学校读者我要写书评

暂无评论

HisTrace: A system for mining on news-related articles instead of web pages

HisTrace: A system for mining on news-related articles inste...

引用

IEEE Symposium on Web Society, SWS

作者： Lian'en Huang Xiaoming Li Internet Research and Engineering Center Shenzhen Graduate School Peking University Shenzhen Guangdong China Institute of Network Computing and Information Systems School of EECS Peking University Beijing China

The Web is now playing an important part in people's real-life activities. Scientists of not only computer science but also sociology and economics might be interested in mining on information directly related to real-life events, or news-related information on the Web. In this paper we propose a system to enable mining on news-related articles instead of raw web pages. There are functionally two tasks in our system: 1) mining for news-related articles and 2) duplicate elimination. For the first task, a novel approach for determining titles, contents and publication-times of news-related articles is presented. Anchor texts are firstly used to extract titles from HTML bodies and then contents are extracted right after titles. After that, crawl-times and are used to initially compute publication-times for all articles. At last, times extracted from HTML bodies, URLs and anchor texts are used to determine precise publication-times for possible articles. For the second task, a duplicate detection algorithm for news-related articles is described which is base on LCS (longest common subsequence) and achieves both high precision and high recall. The framework of this algorithm has been presented as a general-purpose algorithm for web pages in a previously published paper. In this paper we explain why this algorithm is particularly suitable for news-related articles and present corresponding implementation details. Evaluations have been conducted which show the effectiveness of our approaches.

关键词： Web pages HTML Feature extraction Algorithm design and analysis Crawlers Search engines Data mining

来源：评论

学校读者我要写书评

暂无评论

A Mobile and Web System with Contextual Familiarity and its Effect on Campus English Learning

A Mobile and Web System with Contextual Familiarity and its ...

引用

IEEE International Workshop on Digital Game and Intelligent Toy Enhanced Learning (DIGITEL)

作者： Shu-Chen Cheng Wu-Yuin Hwang Dun-Wei Wen Sheng-Yi Wu Ching-Hua Hsiehe Chia-Yu Chen Department of Engineering Science Southern Taiwan University Taiwan Graduate School of Network Learning Technology National Central University Taiwan School of Computing & Information Systems Athabasca University Canada

ISBN: (纸本)9781424464333;9780769539935

We build a Student-Partner mobile English learning system. We go deep into the campus to do English learning by portable of the mobile. The system offer the GPS function, campus map, camera, messaging, tracking and recording. Students can post the message or add the multimedia which he explore to the device. In the mobile, user can off-line to post the message. In addition, we design two activities, learning English by exploring the campus and presenting their exploring events. According to the questionnaire, students think the context familiarity is useful for learning.

关键词： Global Positioning System User interfaces Learning systems Testing Natural languages Multimedia systems Mobile computing Cameras Writing Design for experiments

来源：评论

学校读者我要写书评

暂无评论

Identifying Animals with Dynamic Location-aware and Semantic Hierarchy-Based Image Browsing for Different Cognitive Style Learners

Identifying Animals with Dynamic Location-aware and Semantic...

引用

International Conference on Advanced Learning Technologies (ICALT)

作者： Dunwei Wen Ming-Chi Liu Yueh-Min Huang Kinshuk Pi-Hsia Hung School of Computing and Information Systems Athabasca University Canada Department of Engineering Science National Cheng Kung University Taiwan Graduate Institute of Measurement Statistics National University of Tainan Taiwan

Lack of overall ecological knowledge structure is a critical reason for learners' failure in keyword-based search. To address this issue, this paper firstly presents the dynamic location-aware and semantic hierarchy (DLASH) designed for the learners to browse images, which aims to identify learners' current interesting sights and provide adaptive assistance accordingly in ecological learning. The main idea is based on the observation that the species of plants and animals are discontinuously distributed around the planet, and hence their semantic hierarchy, besides its structural similarity with WordNet, is related to location information. This study then investigates how different cognitive styles of the learners influence the use of DLASH in their image browsing. The preliminary results show that the learners perform better when using DLASH based image browsing than using the Flickr one. In addition, cognitive styles have more effects on image browsing in the DLASH version than in the Flickr one.

关键词： Animals Semantics Internet Encyclopedias Electronic publishing Radiofrequency identification

来源：评论

学校读者我要写书评

暂无评论

Development of intelligent robot hand using proximity, contact and slip sensing

Development of intelligent robot hand using proximity, conta...

引用

IEEE International Conference on Robotics and Automation (ICRA)

作者： Hiroaki Hasegawa Yoshitomo Mizoguchi Kenjiro Tadakuma Aiguo Ming Masatoshi Ishikawa Makoto Shimojo Department of Mechanical Engineering and Intelligent Systems University of Electro-Communications Chofu Tokyo Japan Harmonic Drive Systems Inc. Japan Department of Mechanical Engineering Graduate School of Engineering Osaka University Suita Japan Department of Information Physics and Computing Graduate School of Information Science and Technology University of Tokyo Bunkyo Tokyo Japan

ISBN: (纸本)9781424450381;9781424450404

To achieve the skillful task like the human, many researchers have been working on robot hand. An interaction with vision and tactile information are indispensable for realization of skillful tasks. In the existing research, the method using a camera to get the vision information is often found. But, in the boundary area of a non-contact phase and a contact phase, there are problem that lack of sensor information because the influence of occlusion comes up to surface. We devise to introduce the proximity sensor in this area. And we call the robot hand which is equipped with proximity, tactile and slip sensor “intelligent robot hand”. In this research, we show the constitution example of the intelligent robot hand and propose the method to realize Pick&Place as concrete task.

关键词： Intelligent robots Robot sensing systems Intelligent sensors Humans Humanoid robots Robot vision systems Cameras Tactile sensors Constitution Concrete

来源：评论

学校读者我要写书评

暂无评论

High sensitivity initial slip sensor for dexterous grasp

High sensitivity initial slip sensor for dexterous grasp

引用

IEEE International Conference on Robotics and Automation (ICRA)

作者： Seiichi Teshigawara Kenjiro Tadakuma Aiguo Ming Masatoshi Ishikawa Makoto Shimojo Mechanical Engineering and Intelligent Systems University of Electro-Communications Chofu Tokyo Japan Department of Mechanical Engineering Graduate School of Engineering Osaka University Suita Osaka Japan Department of Information Physics and Computing Graduate School of Information Science and Technology University of Tokyo Bunkyo Tokyo Japan

Slip-detecting tactile sensors are essential for achieving human-like gripping motion with a robot hand. In previous research, we developed a flexible, thin and lightweight slip sensor that exploits the characteristics of pressure conductive rubber. However, using this sensor, it was difficult to distinguish between object slip and a change in the normal force. Therefore, in the present research, we investigated a method for identifying object slip by analyzing the frequency components of the output signal from the sensor. As a result, we found that high-frequency components of 1 kHz or more are included in the complex voltage signal generated by object slip. Therefore, by using this high-frequency component, we developed a simple sensor that distinguished between both contact and initial slip with high sensitivity.

关键词： Sensor phenomena and characterization Tactile sensors Robot sensing systems Humanoid robots Rubber Force sensors Signal analysis Frequency Signal processing Voltage

来源：评论

学校读者我要写书评

暂无评论

Context integration in visual processing: a computational model of center-surround suppression in the visual system

引用

BMC Neuroscience 2010年第1期11卷 1-2页

作者： Christoph Metzner Achim Schweikard Bartosz Zurowski Institute for Robotics and Cognitive Systems University of Luebeck 23538 Luebeck Schleswig-Holstein Germany Graduate School for Computing in Medicine and Life Sciences University of Luebeck 23538 Luebeck Schleswig-Holstein Germany Department of Psychiatry University of Luebeck 23538 Luebeck Schleswig-Holstein Germany

来源：评论

学校读者我要写书评

暂无评论

Lyapunov stability analysis of higher-order 2-D systems

Lecture Notes in Control and Information Sciences

引用

Lecture Notes in Control and Information Sciences 2010年 398卷 197-206页

作者： Kojima, Chiaki Rapisarda, Paolo Takaba, Kiyotsugu Department of Information Physics and Computing Graduate School of Information Science and Technology University of Tokyo Hongo Bunkyo-Ku Tokyo 113-0033 Japan Signals Images Systems Group School of Electronics and Computer Science University of Southampton Southampton SO171BJ United Kingdom Dept. of Applied Mathematics and Physics Graduate School of Informatics Kyoto University Kyoto 606-8501 Japan

We prove a necessary and sufficient condition for the asymptotic stability of a 2-D system described by a system of higher-order linear partial difference equations. We use the definition of asymptotic stability given by Valcher in "Characteristic Cones and Stability Properties of Two-Dimensional Autonomous Behaviors", IEEE Trans. Circ. Syst. - Part I: Fundamental Theory and Applications, vol. 47, no. 3, pp. 290-302, 2000. This property is shown to be equivalent to the existence of a vector Lyapunov functional satisfying certain positivity conditions together with its divergence along the system trajectories. We use the behavioral framework and the calculus of quadratic difference forms based on four variable polynomial algebra. © 2010 Springer-Verlag Berlin Heidelberg.

关键词： Asymptotic stability

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：