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检索条件"任意字段=2009 International Conference on Computer Technology and Development, ICCTD 2009"

共 3769 条记录，以下是2911-2920 订阅

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Research on the Design of a New Data Warehouse System

Research on the Design of a New Data Warehouse System

引用

2009 2nd IEEE international conference on computer Science and Information technology（ICCSIT 2009）

作者： Song Qiang computer Department Anyang Institute of technology Anyang,China Lingxia Liu computer education Department Anyang Normal University Anyang,China

This paper introduces a network which is suitable for network companies and the design of data warehouse system supporting data *** the system architecture,we have adopted three-tier architecture:The first tier is a variety of business systems and scattered electronic documents;the second tier is a data warehouse;the third layer is the front display tools and data mining *** the system functions,we hope to analyze and forecast the financial data and KPI indicators,as well as analyze,explore user preferences,and the correlation between products,In the process of system development,we have adopted iterative manner.

关键词： data warehouse system the overall structure database decision-making

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Research and Implementation of Mongolian Coding Conversion Based on Rules and Statistics

Research and Implementation of Mongolian Coding Conversion B...

引用

Chinese conference on Pattern Recognition (CCPR)

作者： Jin Zhang GuangLai Gao College of Computer Science Inner Mongolia University of Technology Hohhot China

Mongolian coding are not unified and it has seriously affected the Mongolian information processing development. .This paper mainly discusses the conversion from Mongolian coding systems based on the word shapes to the Mongolian international standardized coding. In order to achieve the conversion with unified approach, we use the Min-Morpheme coding as an intermediary. The method based on rules correspondence table, the method based on the Mongolian orthography dictionary, and the method based on statistical language model are used in this paper. At last, we have mixed used the above methods to improve the conversion correct rate, and achieved the desired results.

关键词： Statistics Hidden Markov models Educational institutions computer science Information processing Shape Dictionaries Viterbi algorithm

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Comparative analysis of evolving software systems using the Gini coefficient

Comparative analysis of evolving software systems using the ...

引用

international conference on Software Maintenance (ICSM)

作者： Rajesh Vasa Markus Lumpe Philip Branch Oscar Nierstrasz Faculty of Information & Communication Technologiest-mt Swinburne University of Technology Hawthorn VIC Australia Institute of Computer Science University of Bern Bern Switzerland

Software metrics offer us the promise of distilling useful information from vast amounts of software in order to track development progress, to gain insights into the nature of the software, and to identify potential problems. Unfortunately, however, many software metrics exhibit highly skewed, non-Gaussian distributions. As a consequence, usual ways of interpreting these metrics - for example, in terms of ldquoaveragerdquo values - can be highly misleading. Many metrics, it turns out, are distributed like wealth - with high concentrations of values in selected locations. We propose to analyze software metrics using the Gini coefficient, a higher-order statistic widely used in economics to study the distribution of wealth. Our approach allows us not only to observe changes in software systems efficiently, but also to assess project risks and monitor the development process itself. We apply the Gini coefficient to numerous metrics over a range of software projects, and we show that many metrics not only display remarkably high Gini values, but that these values are remarkably consistent as a project evolves over time.

关键词： Software systems Software metrics Statistical analysis Software standards Gaussian distribution Economic indicators Information analysis Communications technology Australia computer science

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A New Video Coding Method Based on H.264 Algorithm

A New Video Coding Method Based on H.264 Algorithm

引用

international conference on Computational Intelligence and Software Engineering (CiSE)

作者： Xiao-guang Wu Rong Li Li Zhu School of Electrical and Mechnical Engineering Wuhan University of Science and Engineering Wuhan China College of Computer Science & Technology Huazhong University of Science and Technology Wuhan China

Aimed at the problem of narrow band transmission in transmission channels, a new coding algorithm based on H.264 is offered. By the method of reducing bit coding of I frame and improving coding stream of P frame, coding stream can transmit averagely in narrow band, transmission efficiency of coding stream is improved Experiment results show that when I frame coding which takes up more time is reduced and P frame coding stream is improved, decoding file can be transmitted in narrow band in time, vision effect of output file can be improved also.

关键词： Video coding Image coding Streaming media Decoding Video compression Narrowband Bandwidth Standards development Packaging Quantization

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The Learning Transformation through Pervasive Interfaces

The Learning Transformation through Pervasive Interfaces

引用

international conference on Advances in Recent Technologies in Communication and Computing, ARTCom

作者： Anamika Bhargava Saba Hilal Research and Development Cell DAV Institute of Management NH3 National Institute of Technology Faridabad Haryana India Rawal Institutions RICAAT Faridabad Haryana India

Learning is an important aspect of life through which humans stay in tune with their biological and physical environment through which that environment is allowed to take shape around them. The complexity and the occurrence of variation in an environment help generate new experiences and provide the humans the opportunity to learn something new. This paper presents an analysis of the change that is evident as the scenario changes from E-learning to M-Learning and then to P-Learning. This paper also provides a glimpse of the extended opportunities of pervasive setup. The new challenges and design techniques of active learning systems are also suggested in this paper.

关键词： Pervasive computing Distributed computing Humans Mobile computing Ubiquitous computing Electric motors Educational institutions Communications technology Biology computing computer interfaces

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Uniform location referencing standard for road traffic data in Thailand

Uniform location referencing standard for road traffic data ...

引用

international conference on ITS Telecommunications (ITST)

作者： Nattapon Klakhaeng Kannikar Siriwong Na Ayutaya Monsak Socharoentum Wasan Pattara-atikom National Science and Technology Development Agency (NSTDA) Klong Luang National Electronics and Computer Technology Center (NECTEC) Pathumthani Thailand

Traffic information such as accident and traffic congestion becomes an essential part of any commuter's daily life. Reporting such information requires a geography location reference of the event. However, in practice, different providers may have different and/or mismatched scales and versions of the map which may lead to different interpretation of the event location. To alleviate the problem of inconsistency of location referencing, a standard for location referencing is needed. This paper presents a location referencing standard for disseminating road traffic information in Thailand. An empirical evaluation of accuracy such standard is also investigated. The results indicate that the standard is well suited for on-route location referencing but for off-route location referencing further exploration is required.

关键词： Roads

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A Method of Text Segmentation from Scanned Image with Complex Background

A Method of Text Segmentation from Scanned Image with Comple...

引用

international conference on Management and Service Science, MASS

作者： Xianglin Huang Lifang Yang Zhao Yang Computer School Communication University of China Beijing China

With the development of information technology, the number of scanned images is increasing rapidly. There are many important texts in these images. In order to satisfy the need of images viewing, text identification and text retrieval, this paper presents an efficient method for text segmentation. Firstly, localizes the text blocks in scanned image. Secondly, according to its gray/color distribution, the text block image is decomposed into text sub-layer, background sub-layers and mixed sub-layers which contain both texts and backgrounds. Finally, the backgrounds are filtered out from these sub-layers, and the combination of texts in all remained sub-layers is the text segmentation result. Experimental results show that the proposed method is robust to overlapped complex background.

关键词： Image segmentation Wavelet transforms Filtering Information technology Text recognition Image edge detection Image retrieval Robustness Background noise Office automation

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An Interactive Tool Suite for Embossing 2D Images

An Interactive Tool Suite for Embossing 2D Images

引用

international IEEE conference on Signal-Image Technologies and Internet-Based System

作者： George Antonopoulos Ioannis Fudos Department of Computer Science University of Ioannina (UoI) Ioannina Greece

We report on the development of a tool suite for rapidly creating high quality 3D embossed portraits using a single 2D snapshot. Our goal is to establish a mapping from 2D to 3D and then interactively edit the embossed 3D surface and correct any artifacts that have occurred. To establish the initial mapping, we use an enhanced grayscale representation of the image and then employ techniques such as edge detection, region growing and interactive-iterative enhancement to obtain an flawless 3D embossing surface. Finally, we present an evaluation of the usability of our embossing tool suite.

关键词： Image edge detection Three dimensional displays Pixel Embossing Image color analysis Kernel Surface morphology

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Brain-Machine Interfaces for Space Applications

Brain-Machine Interfaces for Space Applications

引用

Annual international conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

作者： Luca Rossini Dario Izzo Leopold Summerer European Space Agency Paris ÃŽle-de-France FR Advanced Concepts Team European Space Agency Noordwijk Netherlands

In human space flight, astronauts are the most precious "payload" and astronaut time is extremely valuable. Astronauts operate under unusual and difficult conditions since the absence of gravity makes some of simple tasks tedious and cumbersome. Therefore, computer interfaces for astronauts are generally designed first for safety and then for functionality. In addition to general constraints like mass, volume, robustness, technological solutions need to enhance their functionality and efficiency while not compromising safety. Brain-machine interfaces show promising properties in this respect. It is however not obvious that devices developed for functioning on-ground can be used as hands-free interfaces for astronauts. This paper intends to address the potential of brain-machine interfaces for space applications, to review expected issues related with microgravity effects on brain activities, to highlight those research directions on brain-machine interfaces with the perceived highest potential impact on future space applications, and to embed these into long-term plans with respect to human space flight. We conclude by suggesting research and development steps considered necessary to include brain-machine interface technology in future architectures for human space flight.

关键词： Space technology Humans Safety Application software Payloads Gravity computer interfaces Robustness Brain Research and development

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A CASE-BASED REASONING APPROACH TO SUPPORT WEB SERVICE COMPOSITION

A CASE-BASED REASONING APPROACH TO SUPPORT WEB SERVICE COMPO...

引用

2009 international conference on Machine Learning and Cybernetics(2009机器学习与控制论国际会议)

作者： YONG-ZHUANG LIU SHUANG QIU HAI-JUN TAO TIAN-YI ZANG YA-DONG WANG School of Computer Science & Technology Harbin Institute of Technology Harbin 150001 China

With the Internet development, lots of web services have been exposed increasingly on the Internet These web services always are owned by different companies and organizations, and are geographically distributed. How to compose these web services together to fulfill a business process is usually a challenge issue. Case-Based Reasoning (CBR) is a problem solving paradigm. It uses successful experiences in past to solve similar problems at present or/and in the future. In this paper, a set of approaches to support web service composition based on CBR is presented for case retrieval. The method of semantic-driven similarity assessment for web services is also described. The indexing technology is adopted to organize the case base to improve the retrieval efficiency. In addition, case adaptation strategy for web services is employed to make a CBR system more robust than usual. At last, the experiments and analysis processes are also addressed.

关键词： Case-Based Reasoning Web services Web services composition

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