a user study on location-based mobile search
TRANSCRIPT
![Page 1: A User Study on Location-based Mobile Search](https://reader034.vdocument.in/reader034/viewer/2022042908/58ec17081a28ab8e468b46f9/html5/thumbnails/1.jpg)
A User Study on Location-based Mobile Search (LBMS)
Alia Amin*, Sian Townsend**,
Lynda Hardman*, Jacco van Ossenbruggen*
* Center for Mathematics & Informatics (CWI)
![Page 2: A User Study on Location-based Mobile Search](https://reader034.vdocument.in/reader034/viewer/2022042908/58ec17081a28ab8e468b46f9/html5/thumbnails/2.jpg)
Background
Few dedicated research on location-based information needs
Mostly generic:
large scale (e.g. Baeza-Yates2007): anonymous, millions of queries
small scale (e.g. Sohn 2008): longitudinal (diary) study, few queries
Exception: geographic query analysis (e.g. Sanderson2004)
Thus, there are many unanswered questions Are users only interested in results near to where they are?
Does context play a role in location-based information need?
2
![Page 3: A User Study on Location-based Mobile Search](https://reader034.vdocument.in/reader034/viewer/2022042908/58ec17081a28ab8e468b46f9/html5/thumbnails/3.jpg)
Background
This research is about:
how location-based mobile information seeking needs are expressed as queries
the influence of social and spatial context
how this translates in improving location-based services
3
![Page 4: A User Study on Location-based Mobile Search](https://reader034.vdocument.in/reader034/viewer/2022042908/58ec17081a28ab8e468b46f9/html5/thumbnails/4.jpg)
Location-based mobile search
Definition:
A mobile search for a business or point of interest that is tied to a specific geographic location
Note:
• Location might NOT be where you are
physically when you conduct the query
• Location may NOT be in the query
4
![Page 5: A User Study on Location-based Mobile Search](https://reader034.vdocument.in/reader034/viewer/2022042908/58ec17081a28ab8e468b46f9/html5/thumbnails/5.jpg)
5
Understand location-based mobile search & the context when it happens
9 people, 27-35 years old, BlackBerryusers, have mobile dataplan
London, UK
12 days
Attend a briefing sessionParticipate in a diary studyAttend a debrief interview
Goal
Who?
Where?
How long?
What did they do?
Digital Diary Study
![Page 6: A User Study on Location-based Mobile Search](https://reader034.vdocument.in/reader034/viewer/2022042908/58ec17081a28ab8e468b46f9/html5/thumbnails/6.jpg)
6
DATA RECORDING
![Page 7: A User Study on Location-based Mobile Search](https://reader034.vdocument.in/reader034/viewer/2022042908/58ec17081a28ab8e468b46f9/html5/thumbnails/7.jpg)
Digital Diary Tool
7
![Page 8: A User Study on Location-based Mobile Search](https://reader034.vdocument.in/reader034/viewer/2022042908/58ec17081a28ab8e468b46f9/html5/thumbnails/8.jpg)
Data Collected
Diary entries
query, time & GPS coordinates
where, when, who they were with at the time of the query
task intent , task importance, task success
Debriefing interview
diary entry clarifications
decision making
place maps
8
![Page 9: A User Study on Location-based Mobile Search](https://reader034.vdocument.in/reader034/viewer/2022042908/58ec17081a28ab8e468b46f9/html5/thumbnails/9.jpg)
Key Findings
![Page 10: A User Study on Location-based Mobile Search](https://reader034.vdocument.in/reader034/viewer/2022042908/58ec17081a28ab8e468b46f9/html5/thumbnails/10.jpg)
1. People express location-based information needs by:
10
68% 32%
Simple queries Detailed queries
![Page 11: A User Study on Location-based Mobile Search](https://reader034.vdocument.in/reader034/viewer/2022042908/58ec17081a28ab8e468b46f9/html5/thumbnails/11.jpg)
2. Location-based search domains of interest
11
![Page 12: A User Study on Location-based Mobile Search](https://reader034.vdocument.in/reader034/viewer/2022042908/58ec17081a28ab8e468b46f9/html5/thumbnails/12.jpg)
Mobile Search
12Kamvar et al. 2008
![Page 13: A User Study on Location-based Mobile Search](https://reader034.vdocument.in/reader034/viewer/2022042908/58ec17081a28ab8e468b46f9/html5/thumbnails/13.jpg)
3. Insights into the spatial context of LBMS
Method:
diary entries (place name)
GPS location information (coordinate)
place map
Conclusion: People tend to stick to well trodden paths through their local environment
13
![Page 14: A User Study on Location-based Mobile Search](https://reader034.vdocument.in/reader034/viewer/2022042908/58ec17081a28ab8e468b46f9/html5/thumbnails/14.jpg)
14HOMEWORK
On the move
![Page 15: A User Study on Location-based Mobile Search](https://reader034.vdocument.in/reader034/viewer/2022042908/58ec17081a28ab8e468b46f9/html5/thumbnails/15.jpg)
4. Insights into the Spatial context of LBMS
These hotspots are:
15
Friends/family house Public places At work On the move At/near home
6.5 %8.5 %
12.0 %20.0 %53.0 %
![Page 16: A User Study on Location-based Mobile Search](https://reader034.vdocument.in/reader034/viewer/2022042908/58ec17081a28ab8e468b46f9/html5/thumbnails/16.jpg)
4. Insights into the Social context of LBMS
16
76 % in the presence of others
(family, friends, colleagues)
– prompt: event planning, conversation, recommendation
24 % alone
– prompt: necessity
![Page 17: A User Study on Location-based Mobile Search](https://reader034.vdocument.in/reader034/viewer/2022042908/58ec17081a28ab8e468b46f9/html5/thumbnails/17.jpg)
5. Decision Making in LBMS
17
Social context 34%Spatial context 15%
Product/service 24%Other 27%
![Page 18: A User Study on Location-based Mobile Search](https://reader034.vdocument.in/reader034/viewer/2022042908/58ec17081a28ab8e468b46f9/html5/thumbnails/18.jpg)
Summary
Participants tend to make simple queries rather then detailed queries
Most popular domain of interest are: stores, food & drinks, entertainment, local news & transport
People tend to stick to well trodden paths through their local environment
Decision making is influenced primarily by: social networks, spatial networks & type of products
18
![Page 19: A User Study on Location-based Mobile Search](https://reader034.vdocument.in/reader034/viewer/2022042908/58ec17081a28ab8e468b46f9/html5/thumbnails/19.jpg)
Design implications for location-based search applications
Simple queries in specific domains should be considered location-based information needs (e.g. stores, food & drink)
Provide recommendations, snippet, etc.
based on spatial network
based on social network
Additional ideas (see paper):
provide location-based query refinement
19
![Page 20: A User Study on Location-based Mobile Search](https://reader034.vdocument.in/reader034/viewer/2022042908/58ec17081a28ab8e468b46f9/html5/thumbnails/20.jpg)
Study Limitation
4 males, 5 females
Blackberry users
about 3 search / day
definition
Future Work
20
![Page 21: A User Study on Location-based Mobile Search](https://reader034.vdocument.in/reader034/viewer/2022042908/58ec17081a28ab8e468b46f9/html5/thumbnails/21.jpg)
Acknowledgements
• Liviu Tancau
• Terry Van Belle
• Jens Riegelsberger
• Robin Jeffries
21