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检索条件"任意字段=2014 IEEE International Conference on Progress in Informatics and Computing"

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Multi-channel speech pushing system: A new design of non-visual browser

Multi-channel speech pushing system: A new design of non-vis...

引用

ieee international conference on progress in informatics and computing (PIC)

作者： Wang, Xiangdong Deng, Zhuhui Chen, Qihua Qian, Yueliang Lin, Shouxun Laboratory of Intelligent Information Processing Institute of Computing Technology Chinese Academy of Sciences Beijing 100190 China

ISBN: (纸本)9781424467860

Most Web browsers are designed for visual interaction, which receive input and render webpage content via a graphical and visual mode. For people with visual disabilities, access to the Web is very difficult. In this paper, we propose a new scheme of non-visual browser, which is referred to as Multi-Channel Speech Pushing System (MCSPS). The system can support browsing from both PC client and telephone users, avoiding construction of two individual systems. Furthermore, by web page content and structure analysis and reorganization, the system can help user locate desired information efficiently. Compared with current non-visual browsers, the proposed system performs deeper and more thorough analysis and reorganization of web pages, thus resulting in higher efficiency in browsing. ©2010 ieee.

关键词： Websites

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Reconfigurable computing for accelerating protein secondary structure prediction on FPGAs

Reconfigurable computing for accelerating protein secondary ...

引用

ieee international conference on progress in informatics and computing (PIC)

作者： Jin, Lizhong Lei, Guoqing School of Chemistry Engineering Northeast Dianli University Jilin China Department of Computer Science National University of Defense Technology Changsha China

ISBN: (纸本)9781424467860

Protein is an important molecule that performs a wide range of functions in biological systems. The GOR algorithm is one of the most successful computational methods to predict secondary structure from protein sequence. FPGA chips have emerged as one promising application accelerator to accelerate bioinformatics algorithms by exploiting fine-grained custom design. In this paper, we propose a complete fine-grained parallel hardware implementation on FPGA XC5VLX330 chip to accelerate the GOR IV package for protein secondary structure prediction. The experimental results show a speedup factor of more than 430x over the GOR-IV software version running on a PC platform with AMD Phenom 9650 Quad CPU for 2-Dimensional protein structure prediction. However, the power consumption is only about 30% of that of current general-purpose CPUs. ©2010 ieee.

关键词： Field programmable gate arrays (FPGA)

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Dynamic priority back-up algorithm based on ieee802.11 DCF

Dynamic priority back-up algorithm based on IEEE802.11 DCF

引用

ieee international conference on progress in informatics and computing (PIC)

作者： Liu, Chao Li, Zhengming Li, Wenjuan School of Electrical and Information Engineering JiangSu University Zhenjiang China

ISBN: (纸本)9781424467860

The Distributed Coordination Function (DCF) in the ieee 802.11 protocol is a random access scheme based on the carrier sense multiple access with collision avoidance (CSMA/CA). In recent years, there have been numerous research on the performance analysis and model of DCF under the assumption that the transmission queue is always nonempty (i.e. saturation state). In this paper, we propose a dynamic priority back-up algorithm (DPBA) for ieee802.11 DCF, the basic idea of DPBA is each node should collect statistical data of other node's transmission while sensing the channel, and maintaining a sending data table for all node in network. When the node has data to transmit, it will calculate the dynamic priority and connection window according to the number of successful sending, the number of successful sending and the statistical data in sending table. Simulation results show that DPBA can properly assign channel among nodes in proportion to their dynamic priority as well as enhance the network saturation throughput. ©2010 ieee.

关键词： Carrier sense multiple access

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Local Vs Global Energy Minimization Methods:Application to Stereo Matching

Local Vs Global Energy Minimization Methods:Application to S...

引用

The 2010 ieee international conference on progress in informatics and computing

作者： Cyril Cassisa School of Aerospace Tsinghua UniversityBeijingChina LIAMA-NLPR Institute of AutomationChinese Academy of SciencesBeijingChina LIAM2CIS-CNRS Ecole Centrale PekinBeihang UniversityBeijingChina

ISBN: (纸本)9781424467860

Energy minimization is often the key point of solving problems in computer *** decades,many methods have been proposed(deterministic,stochastic,…).Some can only reach local minimum and others strong local minimum close to the optimal solution(global minimum).Since beginning of 21th century,minimization based on Graph theory have been generalized to find global minimum of multi-labeling problems. In this work,we study deterministic local minimization methods (Iterative Conditional Modes and Direct Descent Energy),and a stochastic global minimization with an improved Simulated Annealing algorithm.A new approach formulation to help local minimization to converge to a minimum closed to the global one is *** method combines local and global energy constraints in an multiresolution *** focus on stereo matching *** improved Simulated Annealing proved to reach global minimum as good as Graph based minimization methods. Promising results of proposed local minimization methods are obtained on Middlebury Stereo database compare to global methods.

关键词： Markov Random Fields Energy Minimization Methods Local-Global Minimum Stereo Matching

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CBR based emergency case generating system under engineering accidents

CBR based emergency case generating system under engineering...

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ieee international conference on progress in informatics and computing (PIC)

作者： Chang, Chunguang Xiang, Ma. Song, Xiaoyu Gao, Bo School of Management Shenyang Jianzhu University Shenyang China Key Laboratory of Industrial Informatics Shenyang Institute of Automation Chinese Academy of Sciences Shenyang China

ISBN: (纸本)9781424467860

With the flourishing development of construction and real estate industry, engineering accidents happen more frequently. The purpose of this paper is to generate emergency case as quick as possible so as to improve the quick emergency reaction capability when engineering accident happens. The flow of CBR based emergency case generating system (CBR/ECGS) under engineering accidents is studied. Both the static and dynamic case presentation technologies for CBR/ECGS are designed, and the case retrieval, case adaptation and case maintenance technologies for CBR/ECGS are proposed. It can be seen from running result of CBR/ECGS that, comparing with the result under the mode in which artificial adjustment is allowed, the overcast degree of emergency cases generated by CBR/ECGS under the mode in which only automatic system adjustment is allowed is almost the same. The validity of CBR/ECGS proposed in this paper is validated, and CBR is suitable for solving complex, non-structure problems such as emergency case generating under engineering accidents. ©2010 ieee.

关键词： Case based reasoning

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Invariant Lighting Hand Posture Classification

Invariant Lighting Hand Posture Classification

引用

The 2010 ieee international conference on progress in informatics and computing

作者： Thi-Thanh-Hai Tran Thi-Thanh-Mai Nguyen MICA International Research Center Hanoi University of Science and Technology VietNam

ISBN: (纸本)9781424467860

Hand posture classification is a key problem for many human computer interaction ***,this is not a simple *** this paper,we propose to decompose the hand posture classification problem into 2 *** the first step,we detect skin regions using a very fast algorithm of color segmentation based on thresholding *** segmentation is robust to lighting condition thank to a step of color normalization using neural *** the second step, each skin region will be classified into one of hand posture class using Cascaded Adaboost *** contributions of this paper are:(i) By applying a step of color normalization,the posture classification rate is significantly improved under varying lighting condition;(ii) The cascaded Adaboost technique has been studied for the problem of face detection(2 classes).In this paper, it will be studied and evaluated in more detail in a problem of classification of hand postures(multi-classes).

关键词： Hand posture classification Cascaced Adaboost Color normalization Neural network Lighting invariance

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GPS forward model computing study on CPU/GPU co-processing parallel system using CUDA

GPS forward model computing study on CPU/GPU co-processing p...

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ieee international conference on progress in informatics and computing (PIC)

作者： Yin, Fukang Lu, Fengshun Cao, Xiaoqun Song, Junqiang School of Computer National University of Defense Technology Changsha China

ISBN: (纸本)9781424467860

Profiles of refraction and bending angle, which computed through the forward model for GPSRO (Global Positioning System radio occultation), are extremely important for GPS radio occultation data assimilation to the forecast system of NWP (Numerical Weather Prediction). The daily processing of GPS RO data in assimilation system costs amount of time, thus there is an urgent need to find a new way to reduce the computing time. GPU is suited for many data computation-intensive task and has emerged as an inexpensive high performance co-processor because of their tremendous computing power. In this paper, we demonstrate how forward model for GPS can be accelerated considerably by using throughput-oriented GPU on a standard PC. Our implementation is based on loop unrolling, CUDA stream, SPMD, and SIMD vector parallel computing. We have successfully implemented the forward model on single GPU platform, and then develop a simple CPU/GPU parallel cluster. The results on GTX 480 for a single-GPU show a speedup of up to 259 over CPU-based program. In comparison to a single node, the speedup on our cluster which has three nodes is 2.68. All results demonstrate that the forward model can be high efficiently parallelized on CPU/GPU cluster. Besides, it also indicates that the cluster has good scalability. ©2010 ieee.

关键词： Graphics processing unit

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Robust digital image watermarking using region adaptive embedding technique

Robust digital image watermarking using region adaptive embe...

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2010 1st ieee international conference on progress in informatics and computing, PIC 2010

作者： Song, Chunlin Sudirman, Sud Merabti, Madjid School of Computing and Mathematics Science Liverpool John Moores University Liverpool United Kingdom

ISBN: (纸本)9781424467860

Improving the robustness of watermark in withstanding attacks has been one of the main research objectives in digital image watermarking. In this paper we propose a novel region-adaptive watermarking technique that can provide improvements in both robustness and visual quality of the watermarks when compared to the original, non-region-adaptive, embedding technique. The proposed technique, which is derived from our previously published research finding, shows that the relative difference in spectral distributions between the watermark data and the host image plays an important role in improving the watermark robustness and transparency. ©2010 ieee.

关键词： Discrete wavelet transforms

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3D model retrieval from multiple photographic images

3D model retrieval from multiple photographic images

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ieee international conference on progress in informatics and computing (PIC)

作者： Bian, Qianwei He, Yuanjun Luo, Weimin Cai, Hongming Department of Computer Science and Engineering Shanghai Jiao Tong University Shanghai China Department of Computing Hong Kong Polytechnic University Hong Kong Hong Kong School of Software Shanghai Jiao Tong University Shanghai China

ISBN: (纸本)9781424467860

Due to the recent significant improvements in game entertainment, CAD, CAE and some other 3D fields, the number of 3D models is increasing rapidly. As a result, there is an increasing need for procedures supporting the automatic search for 3D objects in databases. In this paper, we present a novel framework to retrieve 3D models in 3 steps. Firstly, users input multiple ordered images of an object as input. Certain photo environment is needed. A voxel model will be generated automatically according to these inputs. Secondly, we provide a tool to modify voxel model. This procedure can help eliminate defects caused by uncertain photo environments. If the model produced by the first step is reasonable, this step will be optional. Finally, the modified model will be retrieved by a method called Solid-D2, which provides a fast and discriminating descriptor for 3D shapes. This algorithm is chosen to err on the side of retrieval speed with certain precision. Related models from the database will be listed. Experimental results indicate that the proposed method is easy-to-use, efficient and applicable for 3D model retrieval. ©2010 ieee.

关键词： Computer aided design

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Evaluating e-govemment websites in Jordan: Accessibility, usability, transparency and responsiveness

Evaluating e-govemment websites in Jordan: Accessibility, us...

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2010 1st ieee international conference on progress in informatics and computing, PIC 2010

作者： Al-Soud, Anas Ratib Nakata, Keiichi Informatics Research Centre Henley Business School University of Reading Reading United Kingdom

ISBN: (纸本)9781424467860

Investigating e-government Web-based services and evaluating its development has become one of the evolving research areas in the information systems field. After a decade of launching the e-government program in Jordan, we examined thirty governmental Websites in terms of their accessibility, usability, transparency, and responsiveness to citizens' request. This study found that the majority of the Websites are still in the early stages of development, and there is a noticeable lack in Websites readiness for moving-up to the advanced level fundamental for providing transactional services. Based on the evaluation results and through a manual testing, it was found the majority of the Websites do not employ the same design, where there should be consistent and should be using the same standards and features. ©2010 ieee.

关键词： Websites

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