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Search vs Explore
Guest Lecture INFO30005 Web Information Technologies
Semester 1, 2016
Patrick Pang Interaction Design Lab
Department of Computing and Information Systems The University of Melbourne
9 May 2016
Announcement
• This week’s tutorial will start in the computer lab.
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Introduction
In the old days…• We browsed a lot - using links and directories
4The Internet Archive - archive.org
• Google… All you need are just some keywords.
Nowadays…
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Search is everywhere…
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But sometimes you cannot search…
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I want to find a good Thai restaurant…
I have headache, cough and a mild fever. What is going on with my body?
Probably you need to explore a bit…
Definition
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Exploratory search
• Exploratory search is to find information with emphasis of:
• lookup efforts
• learning
• investigation
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Marchionini 2006
Focused search
• In contrast, a focused searcher will:
• look at a small range within the search result
• search in a similar pattern
• extract information in a limited set of results
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White and Roth 2009
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White and Roth 2009
Some general factors that cause exploring…
• Solve unfamiliar or unknown problems Pearce at al. 2012
• Task goal is unknown or unfamiliar White and Roth 2009
• Purchase services or products based on experience Hodkinson et al. 2000; Huang et al. 2009
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But… searching and exploring are not distinct
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Example
Scenario:
Find a nice Thai restaurant for dinner tonight.
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1. Enter the postcode of your home and the cuisine (Focused)
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2. Browse the restaurant list and shortlist a few (Exploratory)
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3. Read the review and the menu of a restaurant (Focused)
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4. Then…
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Reset criteria and explore again
Study another restaurant
Reserve a table, stop the task
or or
Supporting Exploratory Search
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Model of information seeking behaviours
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Readability
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Lots of info, but hard to read!
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Better!
Even better!
Hyperlinks
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Multi-faceted search
Query by example (QBE)
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Mashup
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Bozzon et al. 2013
Knowledge graph
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Recommendation systems
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Visual representations
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iFISH
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• An interactive engine for playful exploration and engagement
• http://people.eng.unimelb.edu.au/jonmp/projects/iFISH/
• Demo site: http://www.bookfish.net.au/
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Better Health Explorer
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The future of supporting exploratory search
• New user interfaces?
• How to support both types of searching at the same time?
• Mobile devices?
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Summary
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• Exploration exists, in additional to searching
• Exploration exposes a different behaviour
• Support exploration in your design
• Know your audience - your web application enables searching, exploring or both?
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Announcement
• This week’s tutorial will start in the computer lab.
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Reference• Bozzon, A., Brambilla, M., Ceri, S., & Mazza, D. Exploratory search framework for Web data
sources. The VLDB Journal, 22(5), 641-663.
• Hodkinson, C., Kiel, G., & McColl-Kennedy, J.R. (2000). Consumer web search behaviour: Diagrammatic illustration of wayfinding on the web. International Journal of Human-Computer Studies, 52(5), 805-830.
• Huang, P., Lurie, N.H., & Mitra, S. (2009). Searching for experience on the web : An empirical examination of consumer behavior for search and experience goods. Journal of Marketing, 73, 55-69.
• Marchionini, G. (2006). Exploratory search: From finding to understanding. Communications of the ACM, 49(4), 41.
• Pearce, J., Chang, S., Kennedy, G., Ely, R.B.W., & Ainley, M. (2012). Search and explore: More than one way to find what you want. 2012 Australian Computer-Human Interaction Conference (OzCHI'12), Melbourne, Victoria, Australia.
• White, R., & Roth, R. (2009). Exploratory search: Beyond the query-response paradigm. San Rafael, CA: Morgan and Claypool.
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