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An evaluation of document prefetching in a distributed digital library

Hollmann, J; Ardö, Anders LU and Stenström, P (2003) 7th European Conference, ECDL 2003 In Research and AdvancedTechnology for Digital Libraries / Lecture Notes In Computer Science 2769. p.276-287
Abstract
Latency is a fundamental problem for all distributed systems including digital libraries. To reduce user perceived delays both caching-keeping accessed objects for future use-and prefetching-transferring objects ahead of access time-can be used. In a previous paper we have reported that caching is not worthwhile for digital libraries due to low re-access frequencies. In this paper we evaluate our previous findings that prefetching can be used instead. To do this we have set up an experimental prefetching proxy which is able to retrieve documents from remote fulltext archives before the user demands them. Using a simple prediction to keep the overhead of unnecessarily transfered data limited, we find that it is possible to cut the user... (More)
Latency is a fundamental problem for all distributed systems including digital libraries. To reduce user perceived delays both caching-keeping accessed objects for future use-and prefetching-transferring objects ahead of access time-can be used. In a previous paper we have reported that caching is not worthwhile for digital libraries due to low re-access frequencies. In this paper we evaluate our previous findings that prefetching can be used instead. To do this we have set up an experimental prefetching proxy which is able to retrieve documents from remote fulltext archives before the user demands them. Using a simple prediction to keep the overhead of unnecessarily transfered data limited, we find that it is possible to cut the user perceived average delay a factor of two. (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Research and AdvancedTechnology for Digital Libraries / Lecture Notes In Computer Science
volume
2769
pages
276 - 287
publisher
Springer
conference name
7th European Conference, ECDL 2003
external identifiers
  • wos:000185995400026
  • scopus:35048886105
ISSN
0302-9743
1611-3349
ISBN
978-3-540-40726-3
DOI
10.1007/b11967
language
English
LU publication?
yes
id
95ed535a-74f7-4e0e-b2e2-b35d3aa862fd (old id 297502)
alternative location
http://www.eit.lth.se/fileadmin/eit/home/hs.aar/Publ/ECDL2003.pdf
date added to LUP
2008-02-22 10:37:27
date last changed
2018-06-17 03:48:37
@inproceedings{95ed535a-74f7-4e0e-b2e2-b35d3aa862fd,
  abstract     = {Latency is a fundamental problem for all distributed systems including digital libraries. To reduce user perceived delays both caching-keeping accessed objects for future use-and prefetching-transferring objects ahead of access time-can be used. In a previous paper we have reported that caching is not worthwhile for digital libraries due to low re-access frequencies. In this paper we evaluate our previous findings that prefetching can be used instead. To do this we have set up an experimental prefetching proxy which is able to retrieve documents from remote fulltext archives before the user demands them. Using a simple prediction to keep the overhead of unnecessarily transfered data limited, we find that it is possible to cut the user perceived average delay a factor of two.},
  author       = {Hollmann, J and Ardö, Anders and Stenström, P},
  booktitle    = {Research and AdvancedTechnology for Digital Libraries / Lecture Notes In Computer Science},
  isbn         = {978-3-540-40726-3},
  issn         = {0302-9743},
  language     = {eng},
  pages        = {276--287},
  publisher    = {Springer},
  title        = {An evaluation of document prefetching in a distributed digital library},
  url          = {http://dx.doi.org/10.1007/b11967},
  volume       = {2769},
  year         = {2003},
}