检索结果-内蒙古大学图书馆

您好，读者！请登录

内蒙古大学图书馆

首页
概况
党建
资源
服务
科研支持
- 论文收录引用证明
- 科技查新
知识产权
档案馆
帮助

咨询与建议

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

您的常用邮箱：*

您的手机号码：*

问题描述：

当前已输入0个字，您还可以输入200个字

全部搜索
期刊论文
图书
学位论文
标准
纸本馆藏
外文资源发现
数据库导航
超星发现

高级检索

时间限定

出版年份：

文献类型

图书期刊文献学位论文多媒体

馆藏选择

电子馆藏纸本馆藏

核心期刊

全部期刊 SCI 收录期刊 SSCI 收录期刊 EI 收录期刊 CSCD 收录期刊 CSSCI 收录期刊

语言

中文英文

文献类型

期刊文献图书学位论文标准纸本馆藏

帮助

文字说明：

T=题名（书名、题名），A=作者（责任者），K=主题词，P=出版物名称，PU=出版社名称，O=机构（作者单位、学位授予单位、专利申请人），L=中图分类号，C=学科分类号，U=全部字段，Y=年（出版发行年、学位年度、标准发布年）

检索规则说明：

AND代表“并且”；OR代表“或者”；NOT代表“不包含”；(注意必须大写,运算符两边需空一格)

检索范例：

范例一：(K=图书馆学 OR K=情报学) AND A=范并思 AND Y=1982-2016
范例二：P=计算机应用与软件 AND (U=C++ OR U=Basic) NOT K=Visual AND Y=2011-2016

分类表

所选分类

>> <<

限定检索结果

文献类型

1,860 篇 会议
213 篇 期刊文献
3 篇 学位论文

馆藏范围

2,076 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

544 篇 工学
- 274 篇 计算机科学与技术...
- 261 篇 电气工程
- 130 篇 信息与通信工程
- 84 篇 软件工程
- 40 篇 电子科学与技术（可...
- 33 篇 控制科学与工程
- 29 篇 仪器科学与技术
- 23 篇 生物医学工程（可授...
- 16 篇 机械工程
- 12 篇 测绘科学与技术
- 8 篇 网络空间安全
- 7 篇 生物工程
- 6 篇 航空宇航科学与技...
- 5 篇 交通运输工程
- 4 篇 光学工程
- 3 篇 土木工程
66 篇 理学
- 21 篇 数学
- 19 篇 系统科学
- 11 篇 物理学
- 9 篇 地球物理学
- 7 篇 生物学
- 2 篇 天文学
- 2 篇 地理学
- 2 篇 海洋科学
61 篇 医学
- 51 篇 临床医学
- 9 篇 基础医学(可授医学...
- 5 篇 特种医学
36 篇 管理学
- 35 篇 管理科学与工程(可...
12 篇 文学
- 12 篇 新闻传播学
5 篇 农学
- 4 篇 作物学
3 篇 艺术学
2 篇 军事学
1 篇 经济学

主题

2,076 篇 compression algo...
647 篇 image coding
492 篇 data compression
283 篇 encoding
219 篇 transform coding
218 篇 decoding
203 篇 algorithm design...
164 篇 dictionaries
155 篇 bandwidth
148 篇 video compressio...
142 篇 computer science
141 篇 hardware
130 篇 testing
119 篇 entropy
112 篇 wavelet transfor...
108 篇 bit rate
100 篇 costs
99 篇 quantization
99 篇 discrete cosine ...
96 篇 pixel

机构

9 篇 hewlett packard ...
6 篇 school of electr...
5 篇 department of co...
5 篇 technion israel ...
5 篇 department of el...
5 篇 david samoff res...
5 篇 microsoft resear...
5 篇 institute of com...
4 篇 information syst...
4 篇 faculty of scien...
4 篇 university of ca...
4 篇 school of inform...
4 篇 univ las palmas ...
4 篇 institute of sig...
4 篇 department of el...
4 篇 xerox corporatio...
4 篇 department of el...
4 篇 department of co...
4 篇 department of co...
4 篇 department of el...

作者

9 篇 a. mukherjee
8 篇 en-hui yang
7 篇 w. wolf
6 篇 m. vetterli
6 篇 radu rădescu
6 篇 h. lekatsas
5 篇 chulhee lee
5 篇 k. sayood
5 篇 p.l. dragotti
5 篇 xiaolin wu
5 篇 martin burtscher
5 篇 barrios yubal
5 篇 a. ortega
5 篇 n. chaddha
5 篇 sarmiento robert...
5 篇 yuan xie
5 篇 d. kirovski
4 篇 beatrice arvinti
4 篇 jan platos
4 篇 s. dandapat

语言

2,048 篇 英文
14 篇 中文
13 篇 其他

检索条件"主题词=Compression algorithms"

共 2076 条记录，以下是791-800 订阅

全选清除本页清除全部题录导出标记到"检索档案"

详细简洁

排序：

3D object compression using enhanced stripification technique

3D object compression using enhanced stripification techniqu...

引用

IEEE Pacific Rim Conference on Communications, Computers and Signal Processing

作者： Fatma Khairy Mohamed H. Mousa Hamed Nassar Mohamed S. Yasein Department of Computer Science Suez Canal University Ismailia Egypt Department of Electrical and Computer Engineering Port Said University Port Said Egypt

3D meshes are one of the most common representations of 3D objects that have been used in graphics applications. They often require a huge amount of data for storage and/or transmission. In this paper, we present a new compression algorithm based on stripification of the geometric models that enables us to progressively visualize the 3D models during their transmission. The proposed algorithm encodes the geometry and the connectivity of the input model in an interwoven fashion. The main idea is to store 3D objects as strips files. The algorithm achieves compression ratios above 61 : 1 over ASCII encoded formats resulting in faster transmission and rendering of complex graphical objects.

关键词： Strips Joining processes Three dimensional displays Solid modeling Geometry Rendering (computer graphics) compression algorithms

来源：评论

学校读者我要写书评

暂无评论

Non-uniform Entropy compression for Uniform Energy Distribution in Wireless Sensor Networks

Non-uniform Entropy Compression for Uniform Energy Distribut...

引用

International Conference on Sensor Technologies and Applications, SensorComm

作者： Xiaoming Lu Matt Spear Karl Levitt S. Felix Wu Department of Computer Science University of California Davis Davis CA USA

ISBN: (纸本)9781424432127

Recently there has been an influx of work on extending a wireless sensor networks lifetime by distributing source compression and deploying non-homogeneous nodes to handle the aggregation. Both of these mechanisms have been shown to increase the network's lifetime, but they each have requirements that might not be plausible. With distributed source compression, message distributions must be known a-priori, and the existing practical schemes tend to require modification of a layer in the network stack. In non-homogeneous node deployment, placement of more powerful nodes is a major factor in balancing network energy, but many scenarios exist where this is not reasonable. We propose non-uniform entropy compression wherein bottleneck nodes trade computation energy for transmission energy and do more aggressive compression, which induces a synthetic nonhomogeneity across a network built from physically identical nodes and extends network lifetime. Our method inserts a compression layer between medium access control (MAC) and the routing layers without modifying existing network layers, thus providing a general platform for message compression. We performed extensive simulations to show how our architecture affects network energy and delay considering message size, queue size, compression ratio and time, and network topology. Our simulations show that a computationally inexpensive and effective compression algorithm (with high compression ratio) that takes less than 0.2 s/ kbytes time (including both compression and decompression time) to execute will help extend network lifetime for most motes; for some motes (such as Mica2 and Rene2) 1 s/kbytes or more will work also. This supports our theory that synthetic-non-homogeneity is a viable and practical method for extending wireless sensor networks(WSNs) lifetime.

关键词： Distance measurement Mathematical model Base stations compression algorithms Equations Wireless sensor networks Routing

来源：评论

学校读者我要写书评

暂无评论

A simple lossless compression method-interval number method

A simple lossless compression method-interval number method

引用

Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

作者： Yong Xue M.M. Rees Xiangyu Sheng University Department of Clinical Radiology Bristol Royal Infirmary University of Bristol Bristol UK IESD De Montfort University Leicester UK

Lossless compression techniques-are essential in archival and communication of medical images. compression of medical images has been historically reversible or "lossless" limiting compression ratios to between 2:1 and 4:1. A new and simple lossless method-interval number-in the field of image compression in medical science is presented. The method is tested on several kinds of popular medical images. The general compression ratio is around 2:1. The best compression ratio can be 7.8:1 for X-ray images. It is shown that the interval number method is a very efficient and powerful method for medical image compression.

关键词： Image coding Biomedical imaging Medical diagnostic imaging Telemedicine Costs compression algorithms Predictive coding Predictive models Radiology Medical tests

来源：评论

学校读者我要写书评

暂无评论

Embedding and retrieving patient's identification and compression of ECG signal

Embedding and retrieving patient's identification and compre...

引用

IEEE Students' Technology Symposium (TechSym)

作者： Basudev Halder S. S. Bose N. Mishra S. Mitra Department of Information Technology Neotia Institute of Technology Management & Science W.B India Department of Electronics Affiliated to University of Calcutta Kolkata W.B. India

In this paper, the authors propose a new ECG compression algorithm which embeds patient's identification inside the ECG data. The compressed file contains only ASCII characters. The proposed scheme also allows the decompression technique where the original ECG waveform can be exactly reconstructed and retrieve patient's identification from the ECG signal. The whole module has been applied to various ECG data of all the 12 leads taken from PTB diagnostic database (PTB-DB) of physioNet (***) and gives a highly compressed result that can be stored using far less digital space without distorting important ECG characteristics which are essential for proper medical diagnosis. Moreover, the compression, embedding, decompression and retrieving of data are achieved in a series of sequential, simplistic logical processes that can be easily executed. It is observed that the proposed algorithm gives a high compression ratio (CR=7.3593, an excellent Quality Score (QS=1362) and very low difference between original and reconstructed ECG signal (PRD=O.0054).

关键词： Electrocardiography Arrays Medical treatment Data compression Watermarking compression algorithms

来源：评论

学校读者我要写书评

暂无评论

MPC: A Massively Parallel compression Algorithm for Scientific Data

MPC: A Massively Parallel Compression Algorithm for Scientif...

引用

IEEE International Conference on Cluster Computing

作者： Annie Yang Hari Mukka Farbod Hesaaraki Martin Burtscher Department of Computer Science Texas State University San Marcos TX

Due to their high peak performance and energy efficiency, massively parallel accelerators such as GPUs are quickly spreading in high-performance computing, where large amounts of floating-point data are processed, transferred, and stored. Such environments can greatly benefit from data compression if done sufficiently quickly. Unfortunately, most conventional compression algorithms are unsuitable for highly parallel execution. In fact, it is generally unknown how to design good compression algorithms for massively parallel systems. To remedy this situation, we study 138,240 lossless compression algorithms for single-and double-precision floating-point values that are built exclusively from easily parallelizable components. We analyze the best of these algorithms, explain why they compress well, and derive the Massively Parallel compression (MPC) algorithm from them. This novel algorithm requires almost no internal state, achieves heretofore unreached compression ratios on several data sets, and roughly matches the best CPU-based algorithms in compression ratio while outperforming them by one to two orders of magnitude in throughput.

关键词： compression algorithms Graphics processing units Message systems Algorithm design and analysis Compressors Prediction algorithms Data models

来源：评论

学校读者我要写书评

暂无评论

Measuring Repetitive Sequences: A Lempel-Ziv compression-based Approach with Transition-Based Tokenization in Music Analysis

Measuring Repetitive Sequences: A Lempel-Ziv Compression-bas...

引用

IEEE MIT Undergraduate Research Technology Conference (URTC)

作者： Anton Chen Ross Greer Sidwell Friends School University of California Merced

ISBN: (数字)9798331531003

ISBN: (纸本)9798331531010

Repetition is a key element of music, providing structure, enhancing melodies, and fostering familiarity. However, its objective quantification toward advances in music information retrieval and generative AI remains challenging. Because most compression algorithms exploit repetition in a sequence, the more compactly a sequence can be compressed, the more repetition is likely to be present, and Lempel-Ziv compression has been a useful technique toward this analysis. However, the method of tokenizing symbolic music for this analysis can affect the output; often, repetition in music takes place when a sequence is transposed to an alternate key. Though the notes may be different in absolute position, this is still a musically significant repetition, yet it would be regarded as “new” by a note-based tokenization scheme. In this research, we present a new transition-based tokenization scheme, and show that this tokenization method, when paired with compressibility analysis, can better reflect repetitive structure. We apply this analysis to 12 musical compositions, assessing their compressibility using both the note-based and transition-based tokenizations, finding t hat compositions with prominent transposition repetitions show a more distinct difference in the effect of the introduced tokenization scheme on their LZ ratio.

关键词： Generative AI Music Tokenization Music information retrieval compression algorithms

来源：评论

学校读者我要写书评

暂无评论

The cascading of the LZW compression algorithm with arithmetic coding

The cascading of the LZW compression algorithm with arithmet...

引用

Data compression Conference (DCC)

作者： Y. Perl V. Maram N. Kadakuntla Department of Computer and Information Science New Jersey Institute of Technology Newark NJ USA

Both algorithms are adaptive and require no extra communication from the encoder to the decoder. The authors present a scheme to cascade these into an adaptive algorithm which achieves higher compression ratio and is appropriate for communication. Different refinements of the cascading are tested to optimize the secondary compression.< >

关键词： compression algorithms Dictionaries Frequency Digital arithmetic Decoding Testing Data compression Polynomials Information science Appropriate technology

来源：评论

学校读者我要写书评

暂无评论

Using Normalized compression Distance for Classifying File Fragments

Using Normalized Compression Distance for Classifying File F...

引用

International Conference on Availability, Reliability and Security, ARES

作者： Stefan Axelsson Blekinge Institute of Technology Sweden

ISBN: (纸本)9781424458790

We have applied the generalized and universal distance measure NCD-Normalized compression Distance-to the problem of determining the types of file fragments via example. A corpus of files that can be redistributed to other researchers in the field was developed and the NCD algorithm using k-nearest-neighbor as a classification algorithm was applied to a random selection of file fragments. The experiment covered circa 2000 fragments from 17 different file types. While the overall accuracy of the n-valued classification only improved the prior probability of the class from approximately 6% to circa 50% overall, the classifier reached accuracies of 85%-100% for the most successful file types.

关键词： Classification algorithms Machine learning algorithms compression algorithms Shape measurement Concatenated codes Availability Security Machine learning Noise shaping Forensics

来源：评论

学校读者我要写书评

暂无评论

Open source algorithm for storage area and temporally optimized run length coding for image compression technology used in biomedical imaging

Open source algorithm for storage area and temporally optimi...

引用

International Conference on Open Source Systems and Technologies (ICOSST)

作者： Muhammad Bilal Akhtar Qamar-ul-Islam Department of Communication Systems Engineering Institute of Space Technology Islamabad Pakistan

The objective of this paper is to prove the significance of the optimized run length coding algorithm for biomedical imaging technology and open source the idea behind the optimized algorithm in a comprehensive way. An optimized scheme for entropy encoding part of JPEG image compression by modifying the run length encoding method has been provided by the authors for a Space Research Program at Institute of Space technology (IST). The same has been observed to produce a large amount of saving in terms of memory required for Biomedical compressed images. In JPEG (Joint Photographic Experts Group) image compression algorithm run length coding performs the actual compression by removing the redundancy from transformed and quantized image data. Using the fact that the preceding processes of run length coding produces a large number of zeros the original run length coding uses an ordered pair (a, b), where `a' is the length of consecutive zeros preceding the ASCII character `b'. The proposed run length encoding scheme removes the unintended redundancy by using an ordered pair only when a zero occurs. The proposed encoding scheme does not alter the PSNR value for the algorithm. Using Matlab simulation, the proposed scheme has been tested on various biomedical images over a range of quantization (quality) factor and the results confirmed the effectiveness of the new run length encoding scheme in reducing the run length encoded data size and processing time delay.

关键词： Image coding Transform coding Quantization Discrete cosine transforms Algorithm design and analysis Biomedical imaging compression algorithms

来源：评论

学校读者我要写书评

暂无评论

A rapidly adaptive lossless compression algorithm for high fidelity audio coding

A rapidly adaptive lossless compression algorithm for high f...

引用

Data compression Conference (DCC)

作者： T. Shamoon C. Heegard School of Electrical Engineering Cornell University Ithaca NY USA

A new adaptive algorithm for lossless compression of digital audio is presented. The algorithm is derived from ideas from both dictionary coding and source-modeling. An adaptive Lempel-Ziv (1977) style fixed dictionary coder is used to build a source model that fuels an arithmetic coder. As a result, variable length strings drawn from the source alphabet are mapped onto variable length strings that are on average shorter. The authors show that this algorithm outperforms arithmetic coding or Lempel-Ziv coding working alone on the same source (in their experiments the source is an ADPCM quantizer). Adaptation heuristics for the Lempel-Ziv coder, relevant data structures, and a discussion of audio source modeling (entropy estimation) experiments are described. While the algorithm presented herein is designed to be used as a post-compressor in a lossy audio transform coding system, it is well suited for any instance where non-stationary source outputs must be compressed.< >

关键词： compression algorithms Audio coding Entropy Bit rate Audio compression Frequency Adaptive algorithm Dictionaries Arithmetic Transform coding

来源：评论

学校读者我要写书评

暂无评论

没有更多数据了...

全选清除本页清除全部题录导出标记到“检索档案”

共208页 << < 76 77 78 79 80 81 82 83 84 85 > >>

检索报告对象比较合并检索0

隐藏清空

合并搜索

回到顶部

执行限定条件

内容：

评分：

请选择保存的检索档案：

请选择收藏分类：

订阅名称：

通借通还

温馨提示：

图书名称：

借书校区：

取书校区：

手机号码：

邮箱地址：

一卡通帐号：

电话和邮箱必须正确填写，我们会与您联系确认。

联系人：

所在院系：

联系邮箱：

联系电话：

内蒙古自治区呼和浩特市赛罕区大学西街235号邮编: 010021

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：