Quicklink selection for navigational query results

  • Authors:
  • Deepayan Chakrabarti;Ravi Kumar;Kunal Punera

  • Affiliations:
  • Yahoo! Research, Sunnyvale, CA, USA;Yahoo! Research, Sunnyvale, CA, USA;Yahoo! Research, Sunnyvale, CA, USA

  • Venue:
  • Proceedings of the 18th international conference on World wide web
  • Year:
  • 2009

Quantified Score

Hi-index 0.00

Visualization

Abstract

Quicklinks for a website are navigational shortcuts displayed below the website homepage on a search results page, and that let the users directly jump to selected points inside the website. Since the real-estate on a search results page is constrained and valuable, picking the best set of quicklinks to maximize the benefits for a majority of the users becomes an important problem for search engines. Using user browsing trails obtained from browser toolbars, and a simple probabilistic model, we formulate the quicklink selection problem as a combinatorial optimizaton problem. We first demonstrate the hardness of the objective, and then propose an algorithm that is provably within a factor of 1-1/e of the optimal. We also propose a different algorithm that works on trees and that can find the optimal solution; unlike the previous algorithm, this algorithm can incorporate natural constraints on the set of chosen quicklinks. The efficacy of our methods is demonstrated via empirical results on both a manually labeled set of websites and a set for which quicklink click-through rates for several webpages were obtained from a real-world search engine.