检索结果-内蒙古大学图书馆

International Symposium on Applied Computational Intelligence and informatics ( SACI)

作者： P. Butka J. Pócsová Faculty of Electrical Engineering and Informatics Department of Cybernetics and Artificial Intelligence Technical University of Košice Kosice Slovakia BERG Faculty Institute of Control and Informatization of Production Processes Technical University of Košice Kosice Slovakia

This paper presents the hybrid approach for visualization of documents sets by the combination of hierarchical clustering method, based on the Growing Hierarchical Self-Organizing Maps algorithm, and Sammon projection. Algorithms based on the self-organizing maps provide robust clustering method suitable for visualization of larger number of documents into the grid-based 2D maps. Sammon projection is nonlinear projection method suitable mostly to visualization of smaller sets of object on (usually 2D) maps based on the projections. Here we have implemented and tested combination of these approaches, where starting set of documents is organized using GHSOM to subsets of similar documents, then for clusters at the end of clustering phase, with smaller number of inputs, Sammon maps are created in order to provide distinction also for documents in these clusters. The method for extraction of characteristic terms based on the information gain analysis was used for description of clusters. Existing library JBOWL was used for implementation of the hybrid algorithm. For testing purposes, the documents in English language were used.

关键词： Vectors Clustering algorithms Stress Visualization Data mining Algorithm design and analysis Adaptation models

来源：评论

学校读者我要写书评

暂无评论

Designing and tuning a brake assistant for omnidirectional wheels

Periodica Polytechnica Electrical Engineering and Computer S...

引用

Periodica Polytechnica electrical engineering and Computer Science 2012年第4期56卷 105-111页

作者： Kálmán, Viktor Vajta, László Department of Control Engineering and Information Technology Faculty of Electrical Engineering and Informatics Budapest University of Technology and Economics Magyar Tudósok körútja 2. H-1117 Budapest Hungary Department of Control Engineering and Information Technology Faculty of Electrical Engineering and Informatic Budapest University of Technology and Economics Magyar Tudósok körútja 2. H-1117 Budapest Hungary

Although the invention of the special wheels that move omnidirectional vehicles dates back to the seventies, advances in mechatronics, and control technology keep them constantly on the drawing table of engineers working with mobile robots. The need for eliminating human error becomes ever so obvious when human operators are managing expensive and/or powerful machinery, as the cost of failure can be very high. Omnidirectional platforms are not immune to human error either, however due to their unique working principle they require customized methods. This article presents a trajectory controller for omnidirectional transport robots that is able to correct their trajectory during braking even when high disturbances are present. A method for tuning the controller to achieve a desired behavior is presented. The results are demonstrated by simulation, in Modelica -Dymola environment.

关键词： Brakes

来源：评论

学校读者我要写书评

暂无评论

Unified platform for the delivery of notifications to smartphones notification

Unified platform for the delivery of notifications to smartp...

引用

2012 13th International Carpathian control Conference, ICCC 2012

作者： Mojžišová, Andrea Mojžiš, Marcel Institute of Control and Informatization of Production Processes BERG Faculty Technical University of Košice B. Němcovej 3 042 00 Košice Slovakia Department of Computers and Informatics Faculty of Electrical Engineering and Informatics Technical University of Košice Letná 9 042 00 Košice Slovakia

ISBN: (纸本)9781457718687

During the monitoring of information systems, experiments in progress, etc. it is often required that people are alerted about some events in real time, preferably via a mobile phone. Modern smartphones offer advanced means of notification, however these techniques are usually vendor specific. In this paper we design an unified platform for the delivery of short messages and notifications to smartphones. Our solution is based on a RESTful Java Web Service with simple interface and secure access. Although it is primarily targeted for the delivery of iOS Push Notifications, it can be easily extended for other platforms and/or transport methods (Android, SMS messaging, etc.). © 2012 IEEE.

关键词： Smartphones

来源：评论

学校读者我要写书评

暂无评论

An Investment Portfolio Management Using Software Agents that Rely on Fuzzy Logic and with Different Decision Arguments Combinations

引用

Computer Technology and Application 2012年第12期3卷 808-817页

作者： Andrius Jurgutis Rimvydas Simutis The Treasury Department JSC Okio Bank Kaunas LT-44250 Lithuania The Department of Process Control Faculty of Electrical and Control Engineering Kaunas University of Technology Kaunas LT-51367. Lithuania

During the development of the intellectual multi-agent investment management information system （designed for the formation of investor＇s investment decisions）, it was established that there is a lack of both necessary comprehensive researches and analysis to invoke more than one decision-making aspect （argument） for the making of investment decision, and recommendations to combine these diverse parameters. It is possible to find a lot of articles and researches in which investment decisions or investment tactics are decided on the ground of either technical or fundamental analysis, or modeling and on the ground of intellectual calculating technique （for example, fuzzy logic, neural net, genetic programming）, whereas the issues of the coordination of different techniques are not decided at all. To fill this niche, the article offers the decision applied in multi-agent investment management information system which allows to provide rationale for investment decision taking into account four aspects （arguments）, i.e., to form the recommendation to purchase/hold/sell a security paper having evaluated the following four aspects （arguments）：（a） fundamental analysis, （b） technical analysis, （c） experts and analysts＇ recommendations and （d） risk assessment. These aspects （arguments） are chosen taking into account the real most commonly occurring process of investor＇s investment decision-making. The article gives the implementation of aspects （arguments） assessment by four corresponding software agents whose decisions are implemented with a help of fuzzy logic. Besides, the article offers the technique of the unification of these aspects （arguments）. The offered intellectual multi-agent investment management information system can be tested on the internet： ***/webapp （MADSYS project）.

关键词： Fuzzy logic portfolio management multi-agent systems.

来源：评论

学校读者我要写书评

暂无评论

Cloud computing as a platform for distributed fuzzy FCA approach in data analysis

Cloud computing as a platform for distributed fuzzy FCA appr...

引用

IEEE 16th International Conference on Intelligent engineering Systems, INES 2012

作者： Sarnovský, M. Butka, P. Pócsová, J. Technical University of Košice Faculty of Electrical Engineering and Informatics Department of Cybernetics and Artificial Intelligence Košice Slovakia Technical University of Košice Faculty of Economics Košice Slovakia Technical University of Košice BERG Faculty Institute of Control and Informatization of Production Processes Košice Slovakia

ISBN: (纸本)9781467326957

In this paper we describe use of cloud computing platform for support of distributed creation of conceptual models based on the FCA (Formal Concept Analysis) framework. FCA is one of the approaches which can be applied in process of conceptual data analysis. Extension of classical FCA (binary table data) is (one-sided) fuzzy version that works with different types of lattice-based attributes (binary, ordinal, interval-based, etc.) in the object-attribute table. This extension, so-called generalized one-sided concept lattices, provide possibility for researcher or data analyzer to use fuzzy FCA for object-attribute tables without the need for specific unified pre-processing, what is usually expected in practical data mining or online analytical tools. Computational complexity of creation of concept lattices from large contexts (data tables) is considerable, also interpretability of huge concept lattices is problematic. Therefore, we will also propose a solution for creation of simple hierarchy of smaller FCA models. Starting data table is decomposed into smaller sets of objects and then one concept lattice is built for every subset using generalized one-sided concept lattice. Such small FCA-based models are better for interpretability, and also can be combined into one hierarchy of models using simple hierarchical clustering based on the descriptions of particular models (as weighted vectors of attributes), which can be searched in analytical tool by data analyst. Cloud infrastructure is then used for increase of computational effectiveness, because particular models are built in parallel/distributed way. This cloud module can be a part of more complex data analytical system, which is also presented at the end of the paper. © 2012 IEEE.

关键词： Formal concept analysis

来源：评论

学校读者我要写书评

暂无评论

On generation of one-sided concept lattices from restricted context

On generation of one-sided concept lattices from restricted ...

引用

2012 IEEE 10th Jubilee International Symposium on Intelligent Systems and informatics, SISY 2012

作者： Butka, Peter Pócsová, Jana Pócs, Jozef Department of Cybernetics and Artificial Intelligence Faculty of Electrical Engineering and Informatics Technical University of Košice Košice Slovakia Institute of Control and Informatization of Production Processes BERG Faculty Technical University of Košice Košice Slovakia Mathematical Institute Slovak Academy of Sciences Košice Slovakia

ISBN: (纸本)9781467347518

In this paper the relationship between one-sided concept lattices and their restricted version is described. One-sided concept lattices are based on the Galois connections within Formal Concept Analysis (FCA) framework, which allows to analyse object-attribute models with different structures for truth values of attributes. We present the approach for generation of one-sided concept lattices from restricted formal context, which is obtained from given one by omitting some subset of the set of all attributes. The resulted algorithm for such restricted problem is described, together with the discussion on its correctness. © 2012 IEEE.

关键词： Formal concept analysis

来源：评论

学校读者我要写书评

暂无评论

Technical infrastructure for monitoring the transportation of oversized and dangerous goods

Technical infrastructure for monitoring the transportation o...

引用

Federated Conference on Computer Science and Information Systems (FedCSIS)

作者： Emil Kršák Patrik Hrkút Peter Vestenický Department of Software Technologies Faculty of Management Science and Informatics University of Žilina Zilina Slovakia Department of Control and Information Systems Faculty of Electrical Engineering University of Žilina Zilina Slovakia

The paper presents the technical infrastructure of the system for monitoring the road transportation of oversized and dangerous goods. It describes the basic components of the system - vehicle sensor network, vehicle on-board unit (OBU), monitoring centre and wireless communication system. Moreover, it specifies some important system parameters, especially the period of sending the data about the state / condition of goods to the monitoring centre.

关键词： Monitoring Vehicles GSM Information systems Europe Global Positioning System

来源：评论

学校读者我要写书评

暂无评论

Unified platform for the delivery of notifications to smartphones notification

Unified platform for the delivery of notifications to smartp...

引用

International Carpathian control Conference (ICCC)

作者： Andrea Mojžišová Marcel Mojžiš Institute of Control and Informatization of Production Processes BERG Faculty Technical University of Košice Kosice Slovakia Department of Computers and Informatics Faculty of Electrical Engineering and Informatics University of Košice Kosice Slovakia

关键词： Computer architecture Payloads Service oriented architecture Smart phones

来源：评论

学校读者我要写书评

暂无评论

Joint constrained differential inverse kinematics algorithm for serial manipulators

Periodica Polytechnica Electrical Engineering and Computer S...

引用

Periodica Polytechnica electrical engineering and Computer Science 2012年第4期56卷 95-104页

作者： Drexler, Dániel András Harmati, István Department of Control Engineering and Information Technology Faculty of Electrical Engineering and Informatics Budapest University of Technology and Economics Magyar tudósok körútja 2. H-1117 Budapest Hungary

This paper presents a methodology for avoiding joint limits of robot manipulators in the solution of the differential inverse kinematics problem. A nonlinear transformation is applied to the joint limits, leading to a new kinematics formulation defined in the space of the transformed variables. The introduced transformation ensures that the joint variables stay between joint limits. Optimality conditions are converted into the transformed joint space, and closed-loop differential inverse kinematics is applied. The effectiveness of the introduced method is demonstrated on a simulational example.

关键词： Inverse kinematics

来源：评论

学校读者我要写书评

暂无评论

Review on interaction between electromagnetic field and biological tissues

引用

Sensors and Transducers 2012年第8期143卷 60-70页

作者： Zakaria, Zulkarnay Abdul Rahim, Ruzairi Lee, Pick Yern Mansor, Muhammad Saiful Badri Abdullah, Azian Azamimi Yaacob, Sazali Mohd. Muji, Siti Zarina Biomedical Electronic Engineering Department School of Mechatronic Engineering Universiti Malaysia Perlis 02600 Arau Perlis Malaysia Process Tomography Research Group Control and Instrumentation Engineering Department Faculty of Electrical Engineering Universiti Teknologi Malaysia 81310 Skudai Johor Bahru Malaysia Department of Computer Engineering Faculty of Electrical and Electronic Engineering Universiti Tun Hussein Onn Malaysia 86400 Parit Raja Batu Pahat Johor Malaysia

The objective of this paper is to have a look on the interaction of electromagnetic field (EM) on biological tissue from the view of physiological and electrical engineering. The understanding of the phenomena in the interaction may give clear picture on the fundamental concept of dielectric dispersion in term of suitable frequency application and the reaction of biological tissue to it. The other factors such as thermal effect also will be gone through. This review may provide some useful information to the research of magnetic induction tomography on the biological tissue imaging and electromagnetic therapy which apply electromagnetic field at certain frequency in their application. © 2012 IFSA.

关键词： Electromagnetic fields

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：