Research on Enterprise Track of TREC 2007

Huizhong Duan, Qi Zhou, Zhen Lu, Ou Jin, Shenghua Bao, Yunbo Cao and Yong Yu

Apex Knowledge & Data Management Lab

Presenter: Yangbo Zhu

Link Sparse;Similar, Small

Rank.

Link Sparse;Similar, Small

Rank.

http://www.ento.csiro.auhttp://www.ento.csiro.auhttp://www.atnf.csiro.auhttp://www.atnf.csiro.auhttp://www.csiro.au/sciencehttp://www.csiro.au/science

www.atnf.csiro.au/~rgoochwww.atnf.csiro.au/~rgooch

Hierarchical Weight Structure

www.atnf.csiro.au/computingwww.atnf.csiro.au/computing

www.atnf.csiro.au/computing/softwarewww.atnf.csiro.au/computing/software

www.atnf.csiro.au/computing/software/smongowww.atnf.csiro.au/computing/software/smongo

The factor ω is defined as:

◦ Index(p) is a boolean value denoting whether the page is an index page.

◦ Link(P) is define as the percentage of the inlinks of Page P

Reference: G. Xue, Q. Yang, H. Zeng, Y. Yu, Z. Chen: Exploiting the Hierarchical Structure for

Link Analysis. In: Proceedings of SIGIR2005

TitleTitle

H1H1

H2H2

H1H1

Dividing the page based on DOM tree structure.

Filtering divided parts

S. Bao, H. Duan, Q. Zhou, M. Xiong, Y. Cao and Y. Yu: Research on Expert Search at Enterprise Track

of TREC 2006. In: proceedings of 15th Text Retrieval Conference (TREC 2006), 2006.

au

csiro

atnf ffp

atoa vo

www

reprints

emCutting Level

Expert

Rank

Expert

Rank

Topic Sensitiv

e

Topic Sensitiv

e

Some anti-spam format

[email protected]@noble.org

[email protected]@csiro.au

[email protected]@csiro.au

[email protected]@dem.csiro.au

Emails with single letter in

its person name part

VisualPageRank◦ Too simple: Too complicated:

Example of Expert Homepage