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Recommendations Improve the Search Experience Final Programme meeting05 July 2011 Richard Nurse,[object Object],http://www.open.ac.uk/blogs/rise,[object Object],http://www.flickr.com/photos/jm3/2779185414/sizes/m/in/photostream/,[object Object]
Hypothesis,[object Object],http://www.open.ac.uk/blogs/rise,[object Object]
Database creation,[object Object],EZProxy,[object Object],CIRCE,[object Object],EDS & Crossref,[object Object],RISE,[object Object],http://www.open.ac.uk/blogs/rise,[object Object]
Recommender database,[object Object]
So what about collecting more data?,[object Object],http://library.open.ac.uk/rise,[object Object],http://www.open.ac.uk/blogs/rise,[object Object]
http://www.open.ac.uk/blogs/rise,[object Object]
What can the data tell us?,[object Object],Course recommendation,[object Object],Search recommendation,[object Object],Relationship recommendation,[object Object],http://www.open.ac.uk/blogs/rise,[object Object]
So how do you get a recommendation?,[object Object],User A  Course A123 ,[object Object],Resource BRV=14,[object Object],Views,[object Object],Resource BRV=15,[object Object],Views +1,[object Object],User C Course A123 ,[object Object],Resource BRV=15,[object Object],Recommended +1,[object Object],Resource BRV=16,[object Object],Views +1,[object Object],User C Course A123 ,[object Object],Resource BRV=17,[object Object],Rate Useful +1,[object Object],User C Course A123 ,[object Object],Resource BRV=14,[object Object],Rate Not Useful -2,[object Object],http://www.open.ac.uk/blogs/rise,[object Object]
Data Protection and privacy,[object Object],Privacy and opt-out URL,[object Object],http://library.open.ac.uk/rise/?page=privacy,[object Object],http://www.open.ac.uk/blogs/rise,[object Object]
Face to Face evaluation,[object Object],http://www.open.ac.uk/blogs/rise,[object Object],http://www.flickr.com/photos/ryanhealy/3729881896/sizes/m/in/photostream/,[object Object]
Survey results 1,[object Object],http://www.open.ac.uk/blogs/rise,[object Object]
Survey results 2,[object Object],http://www.open.ac.uk/blogs/rise,[object Object]
Survey results 3,[object Object],http://www.open.ac.uk/blogs/rise,[object Object]
Survey results 4,[object Object],http://www.open.ac.uk/blogs/rise,[object Object]
Should we have a recommender system?,[object Object],“I think it would be a very good useful feature. It would be definitely very very useful”  postgraduate Maths student,[object Object],“So it would be interesting to see what other people are looking at. Yes, I would definitely use that because my limited knowledge of the library might mean that other people were using slightly different ways of searching and getting different results.” undergraduate English Literature student,[object Object],I have just had a go, it was good with suggested papers that I had already found (which shows potential in my view) through Google.,[object Object],http://www.open.ac.uk/blogs/rise,[object Object],http://www.flickr.com/photos/earlg/337743409/sizes/m/in/photostream/,[object Object]
Recommendations usage,[object Object],http://www.open.ac.uk/blogs/rise,[object Object],http://www.flickr.com/photos/smin/613285324/sizes/m/in/photostream/,[object Object]
Interim findings,[object Object],http://www.open.ac.uk/blogs/rise,[object Object]
Recommendations Improve the Search Experience Final Programme meeting05 July 2011 Richard Nurse,[object Object],http://www.open.ac.uk/blogs/rise,[object Object],http://www.flickr.com/photos/jm3/2779185414/sizes/m/in/photostream/,[object Object]

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Rise presentation for programme meeting 2011 07-05

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Hinweis der Redaktion

  1. For RISE the project hypothesis is“That recommender systems can enhance the student experience in new generation e-resource discovery services”So to test it we’ve carried out three types of evaluation activity
  2. As we are mostly interested in eresources at the OU and most of our use is off-campus we started with the system that we use to feed most of our access through EZProxyWe then added course informationBecause the EZProxy log files have URLs but little bibliographic data we’ve used the Ebsco API to find some key information. We can’t store EBSCO metadata in the database so we use DOIs and other keys to retrieve data from CrossrefWe’re also adding data from activity through the RISE interfaces.
  3. So this is the database we’ve ended up with
  4. We’ve created a search interface allowing users to searchEbsco discovery. It’s mainly built to show the recommendations
  5. We’ve also built a Google Gadget search interface that is a slightly cut down version of the main interface
  6. So we’ve ended up with a set of data that can give us a range of different types of recommendationsFrom ‘people on your course are looking at these articles’ through ‘people who looked at this article also looked at this article’ and ‘to people using this search term looked at these resources’And we are sure that you could put the data to other types of use.
  7. Each relationship starts as value 0 +1 each time the resource is viewed +1 each time the recommendation is viewed +1 each time the recommendation is rated as ‘Useful’ -2 each time the recommendation is rated as ‘Not Useful’Recommendations are displayed in value order
  8. Any system that deals with personal data has to be mindful of privacy and data protection requirements. After discussion within the Activity Data programme and some helpful information particularly from EDINA’sOpenURL project we put together a specific privacy policy and discussed it with our data protection people at the University. The policy explicitly covered activity data and we have linked to it from the RISE interfaces, from our main EDS page and from SFX. The policy gives people an opt-out to have their data removed from the recommendations, even though they aren’t identified personally in any of the recommendations.With the new EU ‘cookies’ legislation we are doing some more work to ensure that we are legally compliant. Ideally we would want any institutional ‘cookie’ policy and agreement to cover permission to use data for this type of activity.
  9. As part of our evaluation of the Discovery system we’ve been running some focus groups and were able to ask some questions about the use of recommender systems.And there’s a distinct split between what undergraduates and postgraduates want. And perhaps that isn’t too surprising. So we are exploring that in more detail in a series of face to face interviews.
  10. We are still at the stage of writing up the full evaluations but these are some of the comments we are getting.Generally, there is support for the concept amongst most users
  11. Overall the first and second recommendations seem to be by far the most popular. That seems to indicate that users clearly expect that there is some relevance ranking and rating taking place. Selecting the first two also reinforces their value as recommendationsWe’ve some more work to do to dig into the analytics, such as segmenting the users between google gadget and rise interface and seeing if there behaviour is different.
  12. EZProxy data – on its own it there are limits to the recommendations you can make, they would mostly be about which are the most popular resourcesYou need to combine the ezproxy data with other stuff, CIRCE data, one of the big issues is how you get bibliographic data to make your recommendations make sense. And we need to look for other alternatives such as looking to see if the EDINA OpenURL data could be used. You need search terms ideallyThe more data you can get the better. Unfortunately our Information Management policies dispose of valuable activity data far too readily, you really should be keeping a couple of years worth of data – it’s like throwing away the family silver! The more data you get hold of the better you can make the recommendationsThe One-Stop focus groups and the feedback show that users like the idea of recommendations, there seem to be differences between undergraduates and post-graduates, but there’s a need for them to know the provenance. There’s interest in the search tools from studentsBut currently the quality of the recommendations isn’t that high and the best way to improve the quality is to make it more widely available