Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Jianhan Zhu"'
Autor:
Jianhan Zhu1 j.zhu@open.ac.uk, Gonçalves, Alexandre L.2, Uren, Victoria S.1, Motta, Enrico1, Pacheco, Roberto2, Eisenstadt, Marc1, Dawei Song1
Publikováno v:
Web Intelligence & Agent Systems. Dec2007, Vol. 5 Issue 4, p405-417. 13p. 2 Black and White Photographs, 1 Diagram, 3 Charts.
Publikováno v:
World Patent Information. 33:248-256
There is little need to emphasize the importance of chemoinformatics and chemical information retrieval. However, what seems to require a lot more effort in convincing members of the community is the need for standardized evaluation procedures and me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9468a0a004402b122f0f5fb57a340fb1
https://doi.org/10.1016/j.wpi.2011.03.002
https://doi.org/10.1016/j.wpi.2011.03.002
Publikováno v:
ACM SIGIR Forum. 43:63-70
Over the past decades, significant progress has been made in Information Retrieval (IR), ranging from efficiency and scalability to theoretical modeling and evaluation. However, many grand challenges remain. Recently, more and more attention has been
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b480be0b6b29541dbb3a44e4b5b8d0c3
https://doi.org/10.1145/1670564.1670576
https://doi.org/10.1145/1670564.1670576
Publikováno v:
ACM Transactions on Internet Technology. 4:185-208
User traversals on hyperlinks between Web pages can reveal semantic relationships between these pages. We use user traversals on hyperlinks as weights to measure semantic relationships between Web pages. On the basis of these weights, we propose a no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::164918c014b651cafb0a8e3a30666f29
https://doi.org/10.1145/990301.990305
https://doi.org/10.1145/990301.990305
Publikováno v:
Current Challenges in Patent Information Retrieval ISBN: 9783642192302
Current Challenges in Patent Information Retrieval
Current Challenges in Patent Information Retrieval
It has been noted before in this book that patent retrieval is different from, and more complicated than “standard” information retrieval. Evaluation of patent retrieval engines has also been shown to require specific attention. In this chapter,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::711b8dd87b0d0681f1d2d00467976aad
https://doi.org/10.1007/978-3-642-19231-9_5
https://doi.org/10.1007/978-3-642-19231-9_5
Autor:
Jun Wang, Jianhan Zhu
Publikováno v:
SIGIR
This paper presents a new way of thinking for IR metric optimization. It is argued that the optimal ranking problem should be factorized into two distinct yet interrelated stages: the relevance prediction stage and ranking decision stage. During retr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c3f65c2293a7ecb37e04931b6e790b8
https://doi.org/10.1145/1835449.1835489
https://doi.org/10.1145/1835449.1835489
We argue that expert finding is sensitive to multiple document features in an organizational intranet. These document features include multiple levels of associations between experts and a query topic from sentence, paragraph, up to document levels,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1fb114cd3caf2311676a401f2a9c06a2
http://oro.open.ac.uk/22129/1/zhu-etal-2009-kais.pdf
http://oro.open.ac.uk/22129/1/zhu-etal-2009-kais.pdf
Autor:
Jianhan Zhu
Publikováno v:
2009 1st IEEE Symposium on Web Society.
Named entities are the basic components for semantic web ontologies and social association networks. How to recognize named entities on a Web scale is challenging due to named entity disambiguation, learning and acquisition of vocabularies and patter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9da5c06b1d9a17f25740016c4f969d26
https://doi.org/10.1109/sws.2009.5271718
https://doi.org/10.1109/sws.2009.5271718
Autor:
Jianhan Zhu, Jun Wang
Publikováno v:
SIGIR
This paper studies document ranking under uncertainty. It is tackled in a general situation where the relevance predictions of individual documents have uncertainty, and are dependent between each other. Inspired by the Modern Portfolio Theory, an ec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2d32c77218f4b26f3466f9f98ff5ab5
https://doi.org/10.1145/1571941.1571963
https://doi.org/10.1145/1571941.1571963
Publikováno v:
SIGIR
The need for evaluating large amounts of topics (queries) makes IR evaluation an uneasy task. In this paper, we study a topic selection problem for IR evaluation. The selection criterion is based on the overall difficulty of the chosen set, as well a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae5013a6d6f905915f6f48a05aa1b816
https://doi.org/10.1145/1571941.1572136
https://doi.org/10.1145/1571941.1572136