Focussed Crawling with large scale Ordinal Regression Solvers


Autoria(s): Babaria, Rashmin; Saketha Nath, J; Krishnan, S; Sivaramakrishnan, KR; Bhattacharyya, Chiranjib; Murty, MN
Data(s)

2007

Resumo

In this paper we propose a novel, scalable, clustering based Ordinal Regression formulation, which is an instance of a Second Order Cone Program (SOCP) with one Second Order Cone (SOC) constraint. The main contribution of the paper is a fast algorithm, CB-OR, which solves the proposed formulation more eficiently than general purpose solvers. Another main contribution of the paper is to pose the problem of focused crawling as a large scale Ordinal Regression problem and solve using the proposed CB-OR. Focused crawling is an efficient mechanism for discovering resources of interest on the web. Posing the problem of focused crawling as an Ordinal Regression problem avoids the need for a negative class and topic hierarchy, which are the main drawbacks of the existing focused crawling methods. Experiments on large synthetic and benchmark datasets show the scalability of CB-OR. Experiments also show that the proposed focused crawler outperforms the state-of-the-art.

Formato

application/pdf

Identificador

http://eprints.iisc.ernet.in/41489/1/Focused_Cra.pdf

Babaria, Rashmin and Saketha Nath, J and Krishnan, S and Sivaramakrishnan, KR and Bhattacharyya, Chiranjib and Murty, MN (2007) Focussed Crawling with large scale Ordinal Regression Solvers. In: ICML '07 Proceedings of the 24th international conference on Machine learning , New York, NY.

Publicador

ACM Press

Relação

http://dl.acm.org/citation.cfm?id=1273504

http://eprints.iisc.ernet.in/41489/

Palavras-Chave #Computer Science & Automation (Formerly, School of Automation)
Tipo

Conference Paper

PeerReviewed