difference between information retrieval and web search
Báo cáo khoa học: "Creative Language Retrieval: A Robust Hybrid of Information Retrieval and Linguistic Creativity" pot
Ngày tải lên :
07/03/2014, 22:20
... the effective-
ness of ? and @, and indirectly that of ^ too, by
comparing the use of ? and @ as category builders
to a hand-crafted gold standard like WordNet.
Other researchers have likewise ... SIGIR conference on
Research and development in information retrieval.
287
Veale and Hao (2007) exploit the simile frame
“as X as Y” to harvest a great many common
similes and their underlying ... level, as in “priests and
imams” or “mosques and synagogues”. More gen-
erally, consider the pattern “X and Y”, where X and
Y are proper-names (e.g., “Zeus and Hera”), or X
and Y are inflected...
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in prostate tests psa what is the difference between total psa and free psa
Ngày tải lên :
21/03/2014, 12:19
...
method. Differences between test and comparison methods were estimated at 2.5, 4.0, and 10.0
ng/mL (2.5, 4.0, and 10.0 àg/L) for tPSA and 15%, 20%, and 25% for percentage of fPSA.
Relative differences ... total PSA level between 4 ng/ml and 10 ng/ml.
A PSA level of 4 to 10 ng/ml is considered slightly elevated levels between 10 and
20 ng/ml are considered moderately elevated; and anything above ... diagnosis and treatment of any and all medical conditions.
I add a link with details of this subject
http://www.labtestsonline.org.uk/
understanding/analytes/psa/test.html
Intermethod Differences...
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Báo cáo khoa học: "Exploiting Bilingual Information to Improve Web Search" pdf
Ngày tải lên :
30/03/2014, 23:20
... Meeting of the ACL and the 4th IJCNLP of the AFNLP, pages 1075–1083,
Suntec, Singapore, 2-7 August 2009.
c
2009 ACL and AFNLP
Exploiting Bilingual Information to Improve Web Search
Wei Gao
1
, ... algorithm.
1 Introduction
Web search quality can vary widely across lan-
guages, even for a single query and search en-
gine. For example, we might expect that rank-
ing search results for the query ... (Hwa et al., 2005; Smith and Smith,
2004; Burkett and Klein, 2008; Snyder and Barzi-
lay, 2008), named entity recognition (Chang et al.,
2009), and topic clustering (Wu and Oard, 2008).
In this...
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Tài liệu Báo cáo khoa học: "A High-Accurate Chinese-English NE Backward Translation System Combining Both Lexical Information and Web Statistics" pdf
Ngày tải lên :
20/02/2014, 12:20
... translations in Chinese
web page snippets. We thus base our system on
web search engine: retrieving candidates from
returned snippets, combining both linguistic and
statistical information to find ... is indispensable
in cross language information retrieval
nowadays. We propose an approach of
combining lexical information, web sta-
tistics, and inverse search based on
Google to backward ... recur-
rences, and relative positions) are exploited to
give these candidates a score. In the last step, the
candidates with higher scores are sent to Google
again. Recurrence information and relative...
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Tài liệu Báo cáo khoa học: "Bilingual Terminology Acquisition from Comparable Corpora and Phrasal Translation to Cross-Language Information Retrieval" pptx
Ngày tải lên :
20/02/2014, 16:20
... ASLIB’99 Translating
and the Computer 21.
N. Kando. 2001. Overview of the SecondNTCIR Work-
shop. In Proc. Second NTCIR Workshop on Research
in Chinese and Japanese Text Retrieval and Text Sum-
marization.
P. ... vectors
of source and target languages.
First experiments were conducted on the several
combinations of weighting parameters and schemes
of SMARTretrieval system for documents terms and
query terms. ... Corpora
to Cross-Language Information Retrieval: Hybrid
Statistics-based and Linguistics-based Approach. In
Proc. IRAL 2003, Sapporo, Japan.
G. Salton. 1971. The SMART Retrieval System, Experi-
ments...
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Báo cáo khoa học: " Paraphrase Generation and Information Retrieval from Stored Text" pdf
Ngày tải lên :
16/03/2014, 19:20
... [Mechanical Translation and Computational Linguistics, vol.11, nos.1 and 2, March and June 1968]
Paraphrase Generation and Information Retrieval from Stored Text
by P. W. Culicover, IBM Boston Programming ... relations; thus G
j
(A,C) if and only if
G
i
(A,B) and G
k
(B,C) and A is an X, B is a Y, and C
is a Z. The domination relationship need not hold be-
tween A and C in such cases.
78
Signaling ... the landlord), and sen-
tence B contains the noun phrase "(the fact) that NP
1
was V
j
-ed (by NP
2
)." If sentences A and B meet one of
Condition (x), and one of Conditions II and...
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Báo cáo khoa học: "Search in the Lost Sense of “Query”: Question Formulation in Web Search Queries and its Temporal Change" pptx
Ngày tải lên :
17/03/2014, 00:20
... sys-
tems using web knowledge and Wikipedia (see Du-
mais et al. (2002) and the references therein). Our
findings call for a greater synergy between QA and
IR in the web search context and an improved ... Logs: Turning
Search Usage Data into Knowledge. Foundations and
Trends in Information Retrieval, 4(1):1–174.
Amanda Spink and H. Cenk Ozmultu. 2002. Char-
acteristics of question format web queries: ... Aula, Rehan M. Khan, and Zhiwei Guan. 2010.
How does search behavior change as search becomes
more difficult? In Proc. 28th CHI, pages 35–44.
Ricardo Baeza-Yates and Alessandro Tiberi. 2007. Ex-
tracting...
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Báo cáo khoa học: "Resolving Translation Ambiguity and Target Polysemy in Cross-Language Information Retrieval" potx
Ngày tải lên :
17/03/2014, 07:20
... Text Retrieval. " Working Notes of AAAI-97
Spring Symposiums on Cross-Language Text and Speech
Retrieval, 131-139.
Oard, D.W. and Dorr, B.J. (1996) A Survey of Multilingual
Text Retrieval. ...
Salton, G. and Buckley, C. (1988) "Term Weighting
Approaches in Automatic Text Retrieval. " Information
Processing and Management, Vol. 5, No. 24, 513-523.
Sheridan, P. and Ballerini, ... TREC topics 301-350
(Harman, 1997), and Smart information retrieval
system (Salton and Buckley, 1988). The text
collection contains 556,077 documents, and is
about 2.2G bytes. Because the...
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WORKING PAPER SERIES NO. 548 / NOVEMBER 2005: THE LINK BETWEEN INTEREST RATES AND EXCHANGE RATES DO CONTRACTIONARY DEPRECIATIONS MAKE A DIFFERENCE? doc
Ngày tải lên :
22/03/2014, 23:20
... literature inclu des Ball (1999 and 2002), Svensson (2000), Taylor (1999), McCal-
lum and Nelso n (1999 and 200 0), and Galí and Monacelli (2005). Taylor (2000 and 2001)
presents an interesting ... contractionary-depreciation Thailand. I draw from McCallum and Nelson
(1999 and 2000) for parameters of shock persistence. The two I use in the
present paper are
f
= 0:5 and
x
= 0: I also reset McCallum and Nelson’s
value ... (2003=100)
Thailand (2003=100)
Source:
IMF.
45
ECB
Working Paper Series No. 548
November 2005
by Smets (1997), Smets and Wouters (1999), Kim and Roubini (2000) and
Cushman and Zha (1997), a...
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Báo cáo khoa học: "A Combination of Active Learning and Semi-supervised Learning Starting with Positive and Unlabeled Examples for Word Sense Disambiguation: An Empirical Study on Japanese Web Search Query" pdf
Ngày tải lên :
23/03/2014, 17:20
... ACL and AFNLP
A Combination of Active Learning and Semi-supervised Learning
Starting with Positive and Unlabeled Examples for Word Sense
Disambiguation: An Empirical Study on Japanese Web Search ...
The accuracies of with-EM, random and with-
out-EM are gradually increasing according to the
percentage of added hand labeled examples and
catch up that of human and converge at 30 per-
centage ... evaluation are randomly
divided 10% test set and 90% training set. Table
3 shows the each full text search query and the
number of initial positive examples and the per-
centage of it in the training...
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Báo cáo khoa học: "Alternative Phrases and Natural Language Information Retrieval" pptx
Ngày tải lên :
23/03/2014, 19:20
... Logic, and
Language, chapter 6, pages 145–177. Cambridge
University Press.
Lauri Karttunen and Stanley Peters. 1979. Con-
ventional implicature. In Choon-Kyu Oh and
David Dinneen, editors, Syntax and ... advertising and by implementing new
user interfaces. Work will also be needed to take
more account of the fact that search is often an
iterative and even interactive process. As noted
by Lewis and Sparck-Jones ... assertion
and presupposition and making use of alternative
phrases and the “use existing objects” heuristic.
A simple pattern matching approach would fail to
capture examples requiring knowledge and...
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Báo cáo khoa học: "Complementing Word Net with Roget''''s and Corpus-based Thesauri for Information Retrieval" pdf
Ngày tải lên :
31/03/2014, 21:20
... Stairmand. 1997. Textual context anal-
ysis for information retrieval. In
Proceedings
of the 20th Annual International A CM-SIGIR
Conference on Research and Development in
Information Retrieval, ... information retrieval. In
Proceedings of
the RIA O 94 Conference.
Hinrich Schutze and Jan 0. Pederson. 1997. A
cooccurrence-based thesaurus and two applica-
tions to information retrieval.
Information ... EACL '99
Complementing WordNet with Roget's and Corpus-based
Thesauri for Information Retrieval
Rila Mandala, Takenobu Tokunaga and Hozumi Tanaka
Abstract
This paper proposes a method...
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Báo cáo khoa học: "Homonymy and Polysemy in Information Retrieval" ppt
Ngày tải lên :
31/03/2014, 21:20
... Homonymy and Polysemy in Information Retrieval
Robert Krovetz
NEC Research Institute"
4 Independence Way
Princeton, NJ. 08540
krovetz@research.nj.nec.com
Abstract
This paper discusses research ... research described in this paper is one of
the largest studies ever done. We have examined the
lexicon as a whole, and focused on the distinction
between homonymy and polysemy. Other research ... what work remains for the
future.
2 Lexical Ambiguity and
Information Retrieval
2.1 Background
Many retrieval systems represent documents and
queries by the words they contain. There are two...
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