Jump to ContentJump to Main Navigation
Information Foraging TheoryAdaptive Interaction with Information$
Users without a subscription are not able to see the full content.

Peter L. T. Pirolli

Print publication date: 2007

Print ISBN-13: 9780195173321

Published to Oxford Scholarship Online: April 2010

DOI: 10.1093/acprof:oso/9780195173321.001.0001

Show Summary Details
Page of

PRINTED FROM OXFORD SCHOLARSHIP ONLINE (www.oxfordscholarship.com). (c) Copyright Oxford University Press, 2019. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 10 December 2019

A Cognitive Model of Information Foraging on the Web

A Cognitive Model of Information Foraging on the Web

(p.89) 5 A Cognitive Model of Information Foraging on the Web
Information Foraging Theory

Peter Pirolli

Oxford University Press

This chapter presents SNIF-ACT (Scent-based Navigation and Information Foraging in the ACT architecture), which is a cognitive model that implements the rational analysis of Web-foraging within the constraints of a computational cognitive architecture. SNIF-ACT is a production system model that employs a spreading activation model of information scent to determine which browsing actions and stopping decisions to take. Spreading activation is assumed to operate on a large associative network that represents the Web user's linguistic knowledge. These networks can be constructed using statistical estimates from large and representative samples of the linguistic environment. SNIF-ACT is fitted to data from Web-foraging users in two detailed studies, providing detailed moment-by-moment tracing of individuals as well as emergent aggregate phenomena.

Keywords:   SNIF-ACT, ACT-R, cognitive model, World Wide Web, information scent, information foraging, production system

Oxford Scholarship Online requires a subscription or purchase to access the full text of books within the service. Public users can however freely search the site and view the abstracts and keywords for each book and chapter.

Please, subscribe or login to access full text content.

If you think you should have access to this title, please contact your librarian.

To troubleshoot, please check our FAQs , and if you can't find the answer there, please contact us .