检索结果-内蒙古大学图书馆

International Conference on Signal Processing Proceedings (ICSP)

作者： Qiang Li Yahong Han Jianwu Dang School of Computer Science and Technology Tianjin University Tianjin China Tianjin Key Laboratory of Cognitive Computing and Application Tianjin University Tianjin China School of Information Science Japan Advanced Institute of Science and Technology Ishikawa Japan

ISBN: (纸本)9781479921898

Media types in heterogeneous source are usually represented in different dimensions; this makes cross-media retrieval hard to process. In this paper, we utilize a new domain adaptation to solve Heterogeneous domain adaptation (HDA) problem in cross-media retrieval using Heterogeneous Feature Augmentation (HFA). First, different dimensions of features are transformed into a common subspace by learning an intermediate variable, and augmented the transformed data with their original features and ones; second, in retrieval stage, we compute the similarity and rank the query results by bag-based reranking method. Experiments on two real-world large-scale image datasets and one text document dataset were conducted; we set two search tasks in the experiment, one is from image to text, and the other is from text to image, the experiment results demonstrate the superiority of our method compared with several newly proposed cross-media retrieval methods.

关键词： Media Measurement Multimedia communication Training Streaming media Educational institutions Manifolds

来源：评论

学校读者我要写书评

暂无评论

A Cloaking-Based Approach to Protect Location Privacy in Location-Based Services

A Cloaking-Based Approach to Protect Location Privacy in Loc...

引用

第三十三届中国控制会议

作者： Zheng Jiangyu Tan Xiaobin Cliff Zou Niu Yukun Zhu Jin CAS Key Laboratory of Technology in Geo-spatial Information Processing and Application System University of Science and Technology of China Department of Automation University of Science and Technology of China Department of Electrical Engineering and Computer Science University of Central FloridaOrlandoFL 32816-2362

ISBN: (纸本)9781479947249

With the widespread use of mobile devices, the location-based service(LBS) applications become increasingly popular, which introduces the new security challenge to protect user's location privacy. On one hand, a user expects to report his own location as far as possible away from his real location to protect his location privacy. On the other hand, in order to obtain high quality of service(QoS), users are required to report their locations as accurate as possible. To achieve the dedicated tradeoff between privacy requirement and QoS requirement, we propose a novel approach based on cloaking technique. We also discuss the disadvantage of the traditional general system model and propose an improved model. The basic idea of our approach is to select a sub-area from the generated cloaking area as user's reported location. The sub-area may not contain a user's real location,which prevents an adversary from performing attack with side information. Specifically, by defining an objective function with a novel location privacy metric and a QoS metric, we are able to convert the privacy issue to an optimization problem. Then, location privacy metric and QoS metric are given. To reduce the complexity of the optimization, a heuristic algorithm is *** privacy-preserving analysis and comparison with related work [8], we demonstrate the effectiveness and efficiency of our approach.

关键词： Location-based Services,Location Privacy,k-anonymity,Cloaking Area

来源：评论

学校读者我要写书评

暂无评论

Automated Sunspot Detection Using Morphological Reconstruction and Adaptive Region Growing Techniques

Automated Sunspot Detection Using Morphological Reconstructi...

引用

第三十三届中国控制会议

作者： Lan Yu Linhua Deng Song Feng Department of Information Engineering Yunnan Land and Resources Vocational College National Astronomical Observatories/ Yunnan Astronomical Observatory Chinese Academy of Sciences Yunnan Key Laboratory of Computer Technology Application / Faculty of Information Engineering and Automation Kunming University of Science and Technology

ISBN: (纸本)9781479947249

Sunspots are dark areas with respect to their surrounding area because the temperature of sunspot areas is lower than the average temperature of the solar surface. It provides essential information for many aspects of solar physics. A sunspot is composed of umbra and penumbra. It is a prerequisite for studying solar physics and spatial atmosphere to accurately segment and extract sunspot structures. Consequently, we propose an automated detection technique for segmenting and extracting them. The detection procedure is composed of two steps:(1) segmenting and extracting sunspot umbra with morphological reconstruction;(2) detecting and segmenting sunspot penumbra with region growing. For evaluating the accuracy of the detection procedure,we used a high-resolution observation obtained by Solar Optical Telescope onboard Hinode, and other obtained with the Dutch Open Telescope to illustrate the performance. The results demonstrate that our proposed technique is significant effective and accurate, and is suitable for studying the sunspot evolution and their physical phenomena.

关键词： Automated detection,Sunspot umbrae,Sunspot penumbrae,Morphological reconstruction,Adaptive region growing

来源：评论

学校读者我要写书评

暂无评论

Design and Implementation of Central Heating Data Warehouse System

Design and Implementation of Central Heating Data Warehouse ...

引用

2013 IEEE 4th International Conference on Software Engineering and Service Science

作者： Yuanfang Zhang Jiang Liu Wenyi Xu School of Computer Science and Technology Tianjin Key Laboratory of Cognitive Computing and Application Tianjin University School of Computer Software Tianjin University

ISBN: (纸本)9781467349994

This paper uses data warehouse technology to complete the heating data storage,and online analytical processing（OLAP） based on data warehouse for data *** analysis of the data accumulated in Tianjin heating information system and the heating analysis system requirements,a centralized heating data warehouse is designed and *** on the data warehouse,the heating data cube is *** order to take full use of the heating data,a series of forms for reporting statistics generated after multidimensional data analysis operations.

关键词： Central Heating Data Warehouse OLAP

来源：评论

学校读者我要写书评

暂无评论

Image re-targeting based on the novel saliency map

引用

Journal of Computational Information Systems 2013年第9期9卷 3595-3602页

作者： Yin, Kai Li, Ying School of Computer and Information Engineering Key Laboratory of Changzhou Software Technology Research and Application Changzhou Institute of Technology Changzhou 213002 China School of Information Engineering Jiaozuo University Jiaozuo 454000 China

Image re-targeting is recently very popular in image processing. Effective re-targeting of images should not only use geometric constraints, but consider the image content as well. It is a challenging problem to resizing an image while taking its content into consideration to preserve salient regions and minimize distortions. In this paper we improve the classic Itti's method to get saliency map from natural scenes. And then apply seam carving algorithm to resize the image. Extensive experiments on a large variety of natural scenes confirm that our method can effective resize nature images while preserve salient regions. © 2013 by Binary Information Press.

关键词： Image processing

来源：评论

学校读者我要写书评

暂无评论

Detection and segmentation of concealed objects in X-Ray compton backscatter images

Detection and segmentation of concealed objects in X-Ray com...

引用

2013 7th International Conference on Image and Graphics, ICIG 2013

作者： Dai, Weidi Mei, Wei Zhao, Xiaodong Tianjin Key Laboratory of Cognitive Computing and Application School of Computer Science and Technology Tianjin University Tianjin China

ISBN: (纸本)9780769550503

A fast and effective double-level segmentation method is proposed to detect and segment the concealed objects adaptively in various real-time X-ray Compton backscatter (CBS) images. The double-level segmentation method is composed of the global segmentation and the local segmentation. The global segmentation separates the body area from background area on the basis of a two-class Gaussian density, and the local segmentation segments the concealed objects from the body area based on k-means algorithm and a two-class mixture of Gaussian densities. We have compared our method with one multilevel segmentation method. Experiments confirm our method more efficient and effective in detection and segmentation. © 2013 IEEE.

关键词： Image segmentation

来源：评论

学校读者我要写书评

暂无评论

The design and application of navigation and location services data index

The design and application of navigation and location servic...

引用

2013 5th International Conference on Computational and Information Sciences, ICCIS 2013

作者： Sun, Fuqiang Wang, Wenjun Zhou, Binhan Chen, Fei Tianjin Key Laboratory of Cognitive Computing and Application School of Computer Science and Technology Tianjin University Tianjin China

ISBN: (纸本)9780769550046

This paper defines the existing navigation and location services data and six kinds of retrieval patterns. By contrasting to the existing trajectory index methods, we propose several index algorithms of different dimensions in the MapReduce mode, particularly, a spatiotemporal index algorithm named Layer-by-layer Index Based on Grid Partition (LIBGP), which efficiently avoids the problem of low trajectory recognition rate. In order to achieve real-time query to a large number of location services data, GPS data as an example, we present a multidimensional retrieval framework, combining the index mechanism of Hbase with our proposed algorithms. An analysis of our experimental results indicates that our methods build a flexible retrieval with high efficiency. © 2013 IEEE.

关键词： Location

来源：评论

学校读者我要写书评

暂无评论

An intelligent multi-ways communication device based on AM3359ZCZ processor

An intelligent multi-ways communication device based on AM33...

引用

2013 IEEE International Conference on Signal Processing, Communications and Computing, ICSPCC 2013

作者： Yantao, Shi Ming, Che He, Li Tianjin Key Laboratory of Cognitive Computing and Application Department of Computer Science and Technology Tianjin University Tianjin China

ISBN: (纸本)9781479910274

It is essential to ensure the connection of data transmission link between sensors or other detection devices and the Data Processing Server (DPS) to the normal working of sensor network. Communication reachability can be enhanced by increasing more connected ways for them. So, this paper introduces an intelligent Multi-ways Communication Device (MCD) based on AM3359ZCZ processor. MCD provides multi-ways including wired LAN communication, Wi-Fi, ADSL, 3G network communication for network communications. It supports configuring Network Interface Card (NIC), each multi-ways communication, DHCP service and ways-table which decides the way of data transmission of the MCD via web browser. MCD selects one of the multi-ways according to the way-table to communicate automatic. Also, MCD allows users custom communication way. © 2013 IEEE.

关键词： Sensor networks

来源：评论

学校读者我要写书评

暂无评论

Augmenting semantics of web services based on public open ontology

Augmenting semantics of web services based on public open on...

引用

2013 IEEE 10th International Conference on Services Computing, SCC 2013

作者： Hu, Xiaocao Feng, Zhiyong Chen, Shizhan Tianjin Key Laboratory of Cognitive Computing and Application School of Computer Science and Technology Tianjin University Tianjin China

ISBN: (纸本)9780768550268

As the number of Web services grows and the diversity increases, it is imperative to bring semantics to Web services to provide richer descriptions. However, many solutions developed in the field of semantic annotation suffer from lack of relevant ontologies that are comprehensive enough to contain as many concepts as possible. Based on public open ontology, this paper presents an approach for augmenting semantics of Web services. For Web services in WSDL format, the semantics is enhanced by associating inputs and outputs with concepts from public open ontology. Then two methodologies based on match degree and service discovery respectively are described to evaluate the approach. With the support of OpenCyc, one experiment is carried out on OWLS-TC4 to test the effectiveness of the approach, the other experiment is conducted on 11836 WSDL files crawled from the Internet to expand the approach to a large number of Web services. The experimental results show that the approach performs well even when the number of Web services is large, moreover, it performs better when dealing with well-described Web services. © 2013 IEEE.

关键词： Ontology

来源：评论

学校读者我要写书评

暂无评论

Experimental study of web service availability based on WSDL documents

Experimental study of web service availability based on WSDL...

引用

4th International Conference on Emerging Intelligent Data and Web Technologies, EIDWT 2013

作者： Xin, Liyuan Feng, Zhiyong Chen, Shizhan Tianjin Key Laboratory of Cognitive Computing and Application School of Computer Science and Technology Tianjin University Tianjin China

ISBN: (纸本)9780769550442

The WSDL document is an XML-based interface that is used for describing the abstract functionality offered by a service and the concrete details of how a service can be called. It thus serves the most important factor of Web service availability over the Internet for that's the only way in which potential clients could search, discover and interact with the described service. In this paper, based on the analytical investigation on current status of Web services that exist on the Web today, we propose a tool which can detect Web service availability and repair some errors in the WSDL document. According to the different types of errors we collected and analyzed, our tool can automatically correct or prompt user interactively to patch the WSDL file. The experiment with more than 17000 Web services in real world indicates that our tool produces a high error detection rate with great repair rate. It would be a useful assistant to service provider to publish their WSDL file, and improve the service retrieval and employ process. © 2013 IEEE.

关键词： Web services

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：