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Compression of nucleotide databases for fast searching
1997
Bioinformatics
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Results: We present a purpose-built direct coding scheme for fast retrieval and compression of genomic nucleotide data. ...
The scheme is lossless, readily integrated with sequence search tools, and does not require a model. ...
Acknowledgements We are grateful to Alistair Moffat for his implementation of canonical Huffman coding. ...
doi:10.1093/bioinformatics/13.5.549
fatcat:r7huv4zeyfb5xdz2bl3yauqsxq
ZIP-IO: Architecture for application-specific compression of Big Data
2012
2012 International Conference on Field-Programmable Technology
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To address this issue, we investigate ZIP-IO, a framework for FPGA-accelerated compression. ...
Compression is an effective way to deal with many of these large data sets, and application-specific compression algorithms have become popular in problems with large working sets. ...
Existing compression architectures typically employ general-purpose compression schemes [25] , which do a poor job of compressing generic data. ...
doi:10.1109/fpt.2012.6412159
dblp:conf/fpt/JunFAE12
fatcat:wi4mvrk4yravrftd6fobkwlgme
Document Compaction for Efficient Query Biased Snippet Generation
[chapter]
2009
Lecture Notes in Computer Science
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For efficiency, search engines operating on large collections need to cache snippets for common queries, and to cache documents to allow fast generation of snippets for uncached queries. ...
In particular, we argue against further improvements to document compression, and argue for schemes that prune documents based on the a priori likelihood that a sentence will be used as part of a snippet ...
[14] introduced a compression scheme that was practical for large collections, and worked well in their experiments. But is it worth investing effort in improving such a compression scheme? ...
doi:10.1007/978-3-642-00958-7_45
fatcat:l57ewhdi3vfbfkrhokfg3jcn3m
A Reliable Data Compression Scheme in Sensor-Cloud Systems Based on Edge Computing
2021
IEEE Access
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algorithm, a new data hybrid compression scheme is proposed based on data purpose. ...
In terms of data usage, the equipment operating status and sensor monitoring data collected by IoT devices generally have two purposes in actual application scenarios. ...
doi:10.1109/access.2021.3068753
fatcat:345jtssezvd6bpxt53ustolrk4
A Multimedia Data Compression Scheme for Disaster Prevention in Wireless Multimedia Sensor Networks
2015
International Journal of Contents
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However, the multimedia streams generate a very large amount of data. ...
Recent years have seen a significant increase in demand for multimedia data over wireless sensor networks for monitoring applications that utilize sensor nodes to collect multimedia data, including sound ...
For the purpose of performance improvement in the wireless multimedia sensor networks, the multimedia data compression schemes have been actively in progress as a representative study. ...
doi:10.5392/ijoc.2015.11.2.031
fatcat:6b4a44r7zrglxejjkxksnj33ga
Compressing Integers for Fast File Access
1999
Computer journal
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In this paper we show experimentally that, for large or small collections, storing integers in a compressed format reduces the time required for either sequential stream access or random access. ...
Integers are the basis of indexes used to resolve queries, for example, in large internet search systems and numeric data forms a large part of most databases. ...
ACKNOWLEDGEMENTS We thank Agnes Apostolou, Neil Christie, Neil Sharman, and Lachlan Wainwright for making available their satellite, contour, and temperature data. ...
doi:10.1093/comjnl/42.3.193
fatcat:g7j4e7iumrak3o6vt3jl3m2j2q
Fast generation of result snippets in web search
2007
Proceedings of the 30th annual international ACM SIGIR conference on Research and development in information retrieval - SIGIR '07
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We begin by proposing and analysing a document compression method that reduces snippet generation time by 58% over a baseline using the zlib compression library. ...
These experiments reveal that finding documents on secondary storage dominates the total cost of generating snippets, and so caching documents in RAM is essential for a fast snippet generation process. ...
Thanks to Nick Lester and Justin Zobel for valuable discussions. ...
doi:10.1145/1277741.1277766
dblp:conf/sigir/TurpinTHW07
fatcat:zhmevpbsxjbdpebfogv5mzuoge
An Empirical Evaluation of XML Compression Tools
[chapter]
2009
Lecture Notes in Computer Science
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The study reports the behavior of nine XML compressors using a large corpus of XML documents which covers the different natures and scales of XML documents. ...
Finally, we provide some guidelines and recommendations which are useful for helping developers and users for making an effective decision for selecting the most suitable XML compression tool for their ...
XMLPPM is considered as an adaptation of the general purpose P rediction by P artial M atching compression scheme (PPM) [21] . ...
doi:10.1007/978-3-642-04205-8_6
fatcat:hdbcrz7uxjewhbxnzd6bwiwgh4
Lightweight Data Compression in Wireless Sensor Networks Using Huffman Coding
2014
International Journal of Distributed Sensor Networks
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This paper presents a lightweight data compression method for wireless sensor networks monitoring environmental parameters with low resolution sensors. ...
for wireless sensor networks. ...
However, WSNs are generally deployed with the purpose of monitoring a particular phenomenon of interest [12] . ...
doi:10.1155/2014/672921
fatcat:afm2mh5ejzb7lcufyijk5j62qy
LZ4m: A fast compression algorithm for in-memory data
2017
2017 IEEE International Conference on Consumer Electronics (ICCE)
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Compressing in-memory data is a cost-effective solution for dealing with the memory demand from data-intensive applications. ...
This paper proposes a fast data compression algorithm for in-memory data that improves performance by utilizing the characteristics frequently observed from in-memory data. ...
CONCLUSION We optimized a popular general-purpose compression algorithm by utilizing the inherent characteristics of in-memory data. ...
doi:10.1109/icce.2017.7889380
dblp:conf/iccel/KwonKKK17
fatcat:yu2dasanazdcpfzoggfy7xl6wi
Improving Transmission Efficiency of Large Sequence Alignment/Map (SAM) Files
2011
PLoS ONE
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In this paper, we present SAMZIP, a specialized encoding scheme, for sequence alignment data in SAM (Sequence Alignment/Map) format, which improves the compression ratio of existing compression tools available ...
One way to improve the transmission time of large files is to apply a maximum lossless compression on them. ...
Introduction One of the primary tasks in bioinformatics research is to collect and analyze large volume of genomic sequencing data. ...
doi:10.1371/journal.pone.0028251
pmid:22164252
pmcid:PMC3229529
fatcat:hbjh4srutjhyni6pcmaj65xfdu
XML compression techniques: A survey and comparison
2009
Journal of computer and system sciences (Print)
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We report the behavior of nine XML compressors using a large corpus of XML documents which covers the different natures and scales of XML documents. ...
Several XML compression techniques has been introduced to deal with these problems. In this paper, we provide a complete survey over the state-of-the-art of XML compression techniques. ...
Hence, a straightforward logical approach for compressing XML documents is to use the traditional general purpose text compression tools. ...
doi:10.1016/j.jcss.2009.01.004
fatcat:dvluugsp5vajhaols2fftuc23a
An Experimental Investigation of XML Compression Tools
[article]
2008
arXiv
pre-print
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The study reports the behavior of nine XML compressors using a large corpus of XML documents which covers the different natures and scales of XML documents. ...
Finally, we provide some guidelines and recommen- dations which are useful for helping developers and users for making an effective decision for selecting the most suitable XML compression tool for their ...
XMLPPM is considered as an adaptation of the general purpose P rediction by P artial M atching compression scheme (PPM) [23] . ...
arXiv:0806.0075v1
fatcat:ktibyclo2bed7hkfrekoycwsoa
Portable trace compression through instruction interpretation
2011
(IEEE ISPASS) IEEE INTERNATIONAL SYMPOSIUM ON PERFORMANCE ANALYSIS OF SYSTEMS AND SOFTWARE
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The compression scheme exploits the general similarity between compression and prediction. A simplified functional simulator is used to predict instruction effects in a repeatable manner. ...
In this paper we present Zcompr -a compression scheme that allows practical usage of full-state traces that are billions of instructions long. ...
Finally, a general-purpose compressor compresses the output of the interpretation-based compressor. ...
doi:10.1109/ispass.2011.5762720
dblp:conf/ispass/KanevC11
fatcat:4mgsolbhibbqbisim4vzwt7x54
A Collaborative Data Collection Scheme Based on Optimal Clustering for Wireless Sensor Networks
2018
Sensors
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By comparing it o the existing compression-based and non-compression-based data collection schemes, the average reductions of energy consumption are 17.9% and 67.9%, respectively. ...
Different from existing data collection models in WSNs, we propose a collaborative data collection scheme based on optimal clustering to collect the sensed data in an energy-efficient and load-balanced ...
A number of sensor localization algorithms for WSNs can be used for this purpose [32] . ...
doi:10.3390/s18082487
pmid:30071592
fatcat:55t6lgzdxbgkliuvv7vg24vrvu
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