@inproceedings{mkq,
 author = {Surajit Chaudhuri and Kenneth Church and Arnd Christian K\"{o}nig and Liying Sui},
 title = {Heavy-tailed distributions and multi-keyword queries},
 booktitle = {SIGIR '07: Proceedings of the 30th annual international ACM SIGIR conference on Research and development in information retrieval},
 year = {2007},
 isbn = {978-1-59593-597-7},
 pages = {663--670},
 location = {Amsterdam, The Netherlands},
 doi = {http://doi.acm.org/10.1145/1277741.1277855},
 publisher = {ACM},
 address = {New York, NY, USA},
 }

@ARTICLE{mkp2p,
title={Keyword fusion to support efficient keyword-based search in peer-to-peer file sharing},
author={Lintao Liu and Kyung Dong Ryu and Kang-Won Lee},
journal={Cluster Computing and the Grid, 2004. CCGrid 2004. IEEE International Symposium on},
year={2004},
month={April},
volume={},
number={},
pages={ 269-276},
keywords={ Internet, client-server systems, file organisation, query formulation DHT, Internet, P2P computing, distributed computing, distributed hash table, keyword fusion, keyword-based search, network bandwidth consumption, peer-to-peer file sharing, storage consumption, trace-driven simulations},
doi={10.1109/CCGrid.2004.1336577},
ISSN={ }, }

@article{combined,
 author = {Hugh E. Williams and Justin Zobel and Dirk Bahle},
 title = {Fast phrase querying with combined indexes},
 journal = {ACM Trans. Inf. Syst.},
 volume = {22},
 number = {4},
 year = {2004},
 issn = {1046-8188},
 pages = {573--594},
 doi = {http://doi.acm.org/10.1145/1028099.1028102},
 publisher = {ACM},
 address = {New York, NY, USA},
}

@article{common,
 author = {Matthew Chang and Chung Keung Poon},
 title = {Efficient phrase querying with common phrase index},
 journal = {Inf. Process. Manage.},
 volume = {44},
 number = {2},
 year = {2008},
 issn = {0306-4573},
 pages = {756--769},
 doi = {http://dx.doi.org/10.1016/j.ipm.2007.06.003},
 publisher = {Pergamon Press, Inc.},
 address = {Tarrytown, NY, USA},
}

@article{medical,
 author = {Wenlei Mao and Wesley W. Chu},
 title = {The phrase-based vector space model for automatic retrieval of free-text medical documents},
 journal = {Data Knowl. Eng.},
 volume = {61},
 number = {1},
 year = {2007},
 issn = {0169-023X},
 pages = {76--92},
 doi = {http://dx.doi.org/10.1016/j.datak.2006.02.008},
 publisher = {Elsevier Science Publishers B. V.},
 address = {Amsterdam, The Netherlands, The Netherlands},
}

@inproceedings{auxil,
 author = {Dirk Bahle and Hugh E. Williams and Justin Zobel},
 title = {Efficient phrase querying with an auxiliary index},
 booktitle = {SIGIR '02: Proceedings of the 25th annual international ACM SIGIR conference on Research and development in information retrieval},
 year = {2002},
 isbn = {1-58113-561-0},
 pages = {215--221},
 location = {Tampere, Finland},
 doi = {http://doi.acm.org/10.1145/564376.564415},
 publisher = {ACM},
 address = {New York, NY, USA},
}

@inproceedings{nouns,
 author = {Wei Zhang and Shuang Liu and Clement Yu and Chaojing Sun and Fang Liu and Weiyi Meng},
 title = {Recognition and classification of noun phrases in queries for effective retrieval},
 booktitle = {CIKM '07: Proceedings of the sixteenth ACM conference on Conference on information and knowledge management},
 year = {2007},
 isbn = {978-1-59593-803-9},
 pages = {711--720},
 location = {Lisbon, Portugal},
 doi = {http://doi.acm.org/10.1145/1321440.1321540},
 publisher = {ACM},
 address = {New York, NY, USA},
}

@MISC{kss,
    author = {Frans Kaashoek and Omprakash D Gnawali and Omprakash D Gnawali},
    title = {A Keyword Set Search System for Peer-to-Peer Networks},
    year = {2002}
}

@article{short,
    author = {Kumaran, Giridhar   and Allan, James  },
    citeulike-article-id = {2813349},
    doi = {http://dx.doi.org/10.1016/j.ipm.2007.12.006},
    journal = {Information Processing \& Management},
    keywords = {context, information\_retrieval},
    posted-at = {2008-10-22 13:27:30},
    priority = {2},
    title = {Adapting information retrieval systems to user queries},
    url = {http://dx.doi.org/10.1016/j.ipm.2007.12.006},
    volume = {In Press, Corrected Proof}
}

@book{ricardo,
 author = {Ricardo A. Baeza-Yates and Berthier Ribeiro-Neto},
 title = {Modern Information Retrieval},
 year = {1999},
 isbn = {020139829X},
 publisher = {Addison-Wesley Longman Publishing Co., Inc.},
 address = {Boston, MA, USA},
 }

@misc{21578,
    title = {Machine Learning for Natural Language Processing - ESSLLI 2007 - Reuters 21578 XML},
    url = {http://ronaldo.cs.tcd.ie/esslli07/data/reuters21578-xml/},
    howpublished = {http://ronaldo.cs.tcd.ie/esslli07/data/reuters21578-xml/}
}

@article{porter,
 title = {New models in probabilistic information retrieval},
 author = {C.J. van Rijsbergen and S.E. Robertson and M.F. Porter},
 publisher = {London: British Library. (British Library Research and
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 year = {1980},
 keywords = {da porter stemmer }
}

@misc{dbmbench,
    author = {Mikio Hirabayashi},
	title = {Benchmark {T}est of {DBM} {B}rothers},
	howpublished = "\url{http://tokyocabinet.sourceforge.net/benchmark.pdf}"
}

@misc{tc,
    author = {Mikio Hirabayashi},
    title = {Introduction to {T}okyo {P}roducts},
    howpublished = "\url{http://tokyocabinet.sourceforge.net/tokyoproducts.pdf}"
}

@misc{stopw,
    title = {Linguistic Utils: Stop word list},
    howpublished = "\url{http://www.dcs.gla.ac.uk/idom/ir\_resources/linguistic\_utils/stop\_words}"
}