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457 results on '"Meng, Weiyi"'

51. Bpref

Author

Craswell, Nick, Meng, Weiyi, Section Editor, Liu, Ling, editor, and Özsu, M. Tamer, editor

Published
2018
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53. Identifying and Ranking Possible Semantic and Common Usage Categories of Search Engine Queries

Author

Hemayati, Reza Taghizadeh, Meng, Weiyi, Yu, Clement, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Chen, Lei, editor, Triantafillou, Peter, editor, and Suel, Torsten, editor

Published
2010
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56. Selectivity Estimation for Exclusive Query Translation in Deep Web Data Integration

Author

Jiang, Fangjiao, Meng, Weiyi, Meng, Xiaofeng, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Zhou, Xiaofang, editor, Yokota, Haruo, editor, Deng, Ke, editor, and Liu, Qing, editor

Published
2009
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57. Kernel-Based Transductive Learning with Nearest Neighbors

Author

Shu, Liangcai, Wu, Jinhui, Yu, Lei, Meng, Weiyi, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Li, Qing, editor, Feng, Ling, editor, Pei, Jian, editor, Wang, Sean X., editor, Zhou, Xiaofang, editor, and Zhu, Qiao-Ming, editor

Published
2009
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58. Semantic-Based Grouping of Search Engine Results Using WordNet

Author

Hemayati, Reza, Meng, Weiyi, Yu, Clement, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Rangan, C. Pandu, editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Dong, Guozhu, editor, Lin, Xuemin, editor, Wang, Wei, editor, Yang, Yun, editor, and Yu, Jeffrey Xu, editor

Published
2007
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59. EasyQuerier: A Keyword Based Interface for Web Database Integration System

Author

Li, Xian, Meng, Weiyi, Meng, Xiaofeng, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Kotagiri, Ramamohanarao, editor, Krishna, P. Radha, editor, Mohania, Mukesh, editor, and Nantajeewarawat, Ekawit, editor

Published
2007
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60. Querying Capability Modeling and Construction of Deep Web Sources

Author

Shu, Liangcai, Meng, Weiyi, He, Hai, Yu, Clement, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Benatallah, Boualem, editor, Casati, Fabio, editor, Georgakopoulos, Dimitrios, editor, Bartolini, Claudio, editor, Sadiq, Wasim, editor, and Godart, Claude, editor

Published
2007
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61. Automated Extraction of Hit Numbers from Search Result Pages

Author

Ling, Yanyan, Meng, Xiaofeng, Meng, Weiyi, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Yu, Jeffrey Xu, editor, Kitsuregawa, Masaru, editor, and Leong, Hong Va, editor

Published
2006
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62. Bootstrapping Domain Ontology for Semantic Web Services from Source Web Sites

Author

Wu, Wensheng, Doan, AnHai, Yu, Clement, Meng, Weiyi, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Bussler, Christoph, editor, and Shan, Ming-Chien, editor

Published
2006
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63. Evaluation of Result Merging Strategies for Metasearch Engines

Author

Lu, Yiyao, Meng, Weiyi, Shu, Liangcai, Yu, Clement, Liu, King-Lup, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Ngu, Anne H. H., editor, Kitsuregawa, Masaru, editor, Neuhold, Erich J., editor, Chung, Jen-Yao, editor, and Sheng, Quan Z., editor

Published
2005
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64. Constructing Interface Schemas for Search Interfaces of Web Databases

Author

He, Hai, Meng, Weiyi, Yu, Clement, Wu, Zonghuan, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Ngu, Anne H. H., editor, Kitsuregawa, Masaru, editor, Neuhold, Erich J., editor, Chung, Jen-Yao, editor, and Sheng, Quan Z., editor

Published
2005
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67. Database Selection for Longer Queries

Author

Wu, Wensheng, Yu, Clement, Meng, Weiyi, Bock, H.-H., editor, Gaul, W., editor, Vichi, M., editor, Arabie, Ph., editor, Baier, D., editor, Critchley, F., editor, Decker, R., editor, Diday, E., editor, Greenacre, M., editor, Lauro, C., editor, Meulman, J., editor, Monari, P., editor, Nishisato, S., editor, Ohsumi, N., editor, Opitz, O., editor, Ritter, G., editor, Schader, M., editor, Weihs, C., editor, Banks, David, editor, McMorris, Frederick R., editor, Arabie, Phipps, editor, and Gaul, Wolfgang, editor

Published
2004
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68. Learning-Based Top-N Selection Query Evaluation over Relational Databases

Author

Zhu, Liang, Meng, Weiyi, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Li, Qing, editor, Wang, Guoren, editor, and Feng, Ling, editor

Published
2004
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80. TwiCS: Lightweight Entity Mention Detection in Targeted Twitter Streams

Author

Bhowmick, Satadisha Saha, Dragut, Eduard C., and Meng, Weiyi

Abstract

Microblogging sites, like Twitter, continuously generate a large volume of streaming data. This streaming environment creates new challenges for two concomitant Information Extraction tasks: Entity Mention Detection (EMD) and Entity Detection (ED). The new challenges include (1) continuously evolving topics, which may deprecate model-based approaches quickly; (2) non-literary nature of posts, which makes traditional NLP techniques less effective; and (3) huge volume of streaming data, which makes computationally expensive approaches less suitable. In this paper, we propose an approach for EMD/ED whose creation is guided by the constraints specific to streaming environments from the ground up. Our system TwiCS implements this approach. TwiCS employs a computationally light two-phase process. In the first phase, it exploits simple (low computation) syntactic cues to suggest Entity Mention (EM) candidates. In the second phase, it uses occurrence mining to classify candidates according to their likelihood of being true EMs. Our experiments show that TwiCS achieves an average effectiveness improvement of 14.6 percent, while maintaining at least 2.64 times higher throughput, when compared to several state-of-the-art systems.

Published
2023
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90. Personalized Web search for improving retrieval effectiveness

Author

Liu, Fang, Yu, Clement, and Meng, Weiyi

Subjects
Database searching -- Research, Online searching -- Research, Business, Computers, Electronics, Electronics and electrical industries
Abstract

Current Web search engines are built to serve all users, independent of the special needs of any individual user. Personalization of Web search is to carry out retrieval for each user incorporating his/her interests. We propose a novel technique to learn user profiles from users' search histories. The user profiles are then used to improve retrieval effectiveness in Web search. A user profile and a general profile are learned from the user's search history and a category hierarchy, respectively. These two profiles are combined to map a user query into a set of categories which represent the user's search intention and serve as a context to disambiguate the words in the user's query. Web search is conducted based on both the user query and the set of categories. Several profile learning and category mapping algorithms and a fusion algorithm are provided and evaluated. Experimental results indicate that our technique to personalize Web search is both effective and efficient. Index Terms--Category hierarchy, information filtering, personalization, retrieval effectiveness, search engine.

Published
2004

96. A statistical method for estimating the usefulness of text databases

Author

Liu, King-Lup, Yu, Clement, Meng, Weiyi, Wu, Wensheng, and Rishe, Naphtali

Subjects
Full text databases -- Evaluation, Business, Computers, Electronics, Electronics and electrical industries
Abstract

Searching desired data on the Internet is one of the most common ways the Internet is used. No single search engine is capable of searching all data on the Internet. The approach that provides an interface for invoking multiple search engines for each user query has the potential to satisfy more users. When the number of search engines under the interface is large, invoking all search engines for each query is often not cost effective because it creates unnecessary network traffic by sending the query to a large number of useless search engines and searching these useless search engines wastes local resources. The problem can be overcome if the usefulness of every search engine with respect to each query can be predicted. In this paper, we present a statistical method to estimate the usefulness of a search engine for any given query. For a given query, the usefulness of a search engine in this paper is defined to be a combination of the number of documents in the search engine that are sufficiently similar to the query and the average similarity of these documents. Experimental results indicate that our estimation method is much more accurate than existing methods. Index Terms--Metasearch, information resource discovery, information retrieval.

Published
2002

97. A methodology to retrieve text documents from multiple databases

Author

Yu, Clement, Liu, King-Lup, Meng, Weiyi, Wu, Zonghuan, and Rishe, Naphtali

Subjects
Information storage and retrieval -- Technology application, Document management systems -- Technology application, Databases -- Technology application, Document processing system, CD-ROM catalog, CD-ROM database, Database, Technology application, Business, Computers, Electronics, Electronics and electrical industries
Abstract

This paper presents a methodology for finding the n most similar documents across multiple text databases for any given query and for any positive integer n. This methodology consists of two steps. First, the contents of databases are indicated approximately by database representatives. Databases are ranked using their representatives with respect to the given query. We provide a necessary and sufficient condition to rank the databases optimally. In order to satisfy this condition, we provide three estimation methods. One estimation method is intended for short queries; the other two are for all queries. Second, we provide an algorithm, OptDocRetrv, to retrieve documents from the databases according to their rank and in a particular way. We show that if the databases containing the n most similar documents for a given query are ranked ahead of other databases, our methodology will guarantee the retrieval of the n most similar documents for the query. When the number of databases is large, we propose to organize database representatives into a hierarchy and employ a best-search algorithm to search the hierarchy. It is shown that the effectiveness of the best-search algorithm is the same as that of evaluating the user query against all database representatives. Index Terms--Distributed information retrieval, resource discovery, database selection, metasearch.

Published
2002

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