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Get off of my cloud: preliminary investigation of tag cloud navigation strategies Carol Shergold John Davies  Mirona Gheorghiu Tan Chui Chui  Judith Good
A lot of students find ‘skills’ a bit baffling Photo by squacco at http://www.flickr.com/photos/squeakywheel/296747265/
Background - the SkillClouds project Skills  is a turn-off. They [lecturers] don’t really mention how these are transferable skills you’re picking up ‘cos they are so technically focussed [..] They don’t really say,  from this you’re getting communication skills  or  you’re getting team work skills because you’re doing a group project.  They don’t really highlight that. You can say  I can read a text and summarise it , but what does that mean for the wider world?
Search strategies (Marchionini, 1995) Marchionini, G.,  Information Seeking in Electric Environments,  Cambridge University Press, 1995. High cognitive load Low cognitive load Search engines ,[object Object],[object Object],[object Object],[object Object],Tag clouds ,[object Object],[object Object],[object Object],[object Object]
[object Object]
From  search  to  browse -  a skill cloud ,[object Object],[object Object],[object Object],[object Object]
Evaluation of tag clouds   Rivadeneira  et al  (2007)   Font size associated with recall rates ‘ Gisting’ more accurate when tags as a list Rivadeneira, A.W.  et al , ‘Getting our Head in the Clouds: Toward Evaluation Studies of Tag Clouds’, Proceedings of CHI 2007. Recall better for upper left quadrant baron coupe grist drawl hovel eerie lanky missy fetid liter prick heave golly
Experimental questions ,[object Object],[object Object],[object Object],[object Object]
 
 
Results 116 students surveyed in March 2008
[object Object],89% used tag clouds in at least one trial [35% used text box at least once] 65% used tag clouds for all three trials [11% used search box for all three trials] 13% switched from search box to tag cloud strategy after first trial
Does search strategy vary with tag size?
Does search strategy vary with tag size? Logistic regression undertaken. In the  first trial,  being presented with a  small search target  did significantly increase the chances of using the search box ( p=.038 ) In  subsequent trials  this effect was not present.
Findings in relation to search time ,[object Object],[object Object],[object Object],[object Object]
Emerging themes ,[object Object],[object Object],[object Object],[object Object]
Familiarity with tag clouds ,[object Object],[object Object],[object Object]
Search strategies Text entry box - analysis .. usually I’m not looking for ‘florists’, I’m looking for ‘florists near the station’, or something. So I’ll put it in the search [text entry box] because it’s more specific Tag cloud search - browse Because I was unsure, so it’s easer to be given a list of options and choose one of those, than think on your own and type it in
Motivation for choices Text entry box Cos it’s easier  .. [you] just type it in, which is quicker than having to read everything Because it’s quicker. It’s faster, much faster, to type it and search because you’re used to google .. Tag cloud It’s quicker, I don’t have to do two things at the same time, I just have to do one thing  Because it’s just easier
How the tag cloud is perceived A. As ‘noise’, screen junk All search engines have a lot of other things on it, and it takes time to look through it .. I glanced at them [the tags] and saw how many there were and thought  No! I’ll just type it in! Maybe because it [the tag cloud] is like lots of random words, I didn’t look at [it]. Maybe if it was organised in another way .. I just thought these [tags] were examples of things to search
How the tag cloud is perceived B. As a potential affordance I think that’s just what you assume, when you open up a website and words are popping up - you just click on them First of all my instinct was to go to search it [with text box]. But then I saw that there was all the list there and I thought  OK, well, I’ll find it At first, I didn’t notice it was in alphabetical order, because I think I just jumped to ‘florists’ because it’s massive. And then, when I had to look for ‘printers’ and it’s tiny, I suddenly realised they were in alphabetical order.
The importance of font size I’d prefer it if it’s not in different sizes. Well yes, the big ones did catch my eye, but it’s just confusing:  Ignore the fact that that one’s big - I don’t need it - look for the small ones! It’s a bit distracting because things stick out and they’re not necessarily what you’re looking for. So ‘cinemas’ is smaller than ‘estate agents’ whereas you want to look at ‘cinemas’. And it implies that one is more important than the other, which it isn’t. I prefer the way it looks with some big and some small. If they were all the same size it would be boring.
Key outcomes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Suggestions for using tag clouds with students ,[object Object],[object Object],[object Object],[object Object]
For further information about our project ,[object Object]

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Get off my cloud: preliminary investigation of tag cloud navigation strategies

  • 1. Get off of my cloud: preliminary investigation of tag cloud navigation strategies Carol Shergold John Davies Mirona Gheorghiu Tan Chui Chui Judith Good
  • 2. A lot of students find ‘skills’ a bit baffling Photo by squacco at http://www.flickr.com/photos/squeakywheel/296747265/
  • 3. Background - the SkillClouds project Skills is a turn-off. They [lecturers] don’t really mention how these are transferable skills you’re picking up ‘cos they are so technically focussed [..] They don’t really say, from this you’re getting communication skills or you’re getting team work skills because you’re doing a group project. They don’t really highlight that. You can say I can read a text and summarise it , but what does that mean for the wider world?
  • 4.
  • 5.
  • 6.
  • 7. Evaluation of tag clouds Rivadeneira et al (2007) Font size associated with recall rates ‘ Gisting’ more accurate when tags as a list Rivadeneira, A.W. et al , ‘Getting our Head in the Clouds: Toward Evaluation Studies of Tag Clouds’, Proceedings of CHI 2007. Recall better for upper left quadrant baron coupe grist drawl hovel eerie lanky missy fetid liter prick heave golly
  • 8.
  • 9.  
  • 10.  
  • 11. Results 116 students surveyed in March 2008
  • 12.
  • 13. Does search strategy vary with tag size?
  • 14. Does search strategy vary with tag size? Logistic regression undertaken. In the first trial, being presented with a small search target did significantly increase the chances of using the search box ( p=.038 ) In subsequent trials this effect was not present.
  • 15.
  • 16.
  • 17.
  • 18. Search strategies Text entry box - analysis .. usually I’m not looking for ‘florists’, I’m looking for ‘florists near the station’, or something. So I’ll put it in the search [text entry box] because it’s more specific Tag cloud search - browse Because I was unsure, so it’s easer to be given a list of options and choose one of those, than think on your own and type it in
  • 19. Motivation for choices Text entry box Cos it’s easier .. [you] just type it in, which is quicker than having to read everything Because it’s quicker. It’s faster, much faster, to type it and search because you’re used to google .. Tag cloud It’s quicker, I don’t have to do two things at the same time, I just have to do one thing Because it’s just easier
  • 20. How the tag cloud is perceived A. As ‘noise’, screen junk All search engines have a lot of other things on it, and it takes time to look through it .. I glanced at them [the tags] and saw how many there were and thought No! I’ll just type it in! Maybe because it [the tag cloud] is like lots of random words, I didn’t look at [it]. Maybe if it was organised in another way .. I just thought these [tags] were examples of things to search
  • 21. How the tag cloud is perceived B. As a potential affordance I think that’s just what you assume, when you open up a website and words are popping up - you just click on them First of all my instinct was to go to search it [with text box]. But then I saw that there was all the list there and I thought OK, well, I’ll find it At first, I didn’t notice it was in alphabetical order, because I think I just jumped to ‘florists’ because it’s massive. And then, when I had to look for ‘printers’ and it’s tiny, I suddenly realised they were in alphabetical order.
  • 22. The importance of font size I’d prefer it if it’s not in different sizes. Well yes, the big ones did catch my eye, but it’s just confusing: Ignore the fact that that one’s big - I don’t need it - look for the small ones! It’s a bit distracting because things stick out and they’re not necessarily what you’re looking for. So ‘cinemas’ is smaller than ‘estate agents’ whereas you want to look at ‘cinemas’. And it implies that one is more important than the other, which it isn’t. I prefer the way it looks with some big and some small. If they were all the same size it would be boring.
  • 23.
  • 24.
  • 25.

Notas del editor

  1. Work on tag clouds carried out as part of a project at Sussex University. Grateful for JISC for funding our work which aims to support students around understanding the generic skills that are embedded in their degree programmes.