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HEA-ICS 2010


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Streamline was a JISC funded project that completed in March 2008. This is a presentation I gave about the Automatic Metadata Generator that was developed during that project. at the HEA-ICS conference in Durham 2010

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HEA-ICS 2010

  1. 1. Facilitating reuse of learning resources: a tool to support self-deposit and automatic metadata generation<br />Dawn Wood & Janet Finlay<br />Leeds Metropolitan University<br /><br /> <br />
  2. 2. Introduction<br />JISC funded project Streamline<br />Completed in 2009<br />Examine the process of Repository:<br />Deposit<br />Retrieval <br />The crux of the problem:<br />Metadata (data about data)<br />Learning Object Metadata (LOM) standard<br />Present one possible solution for the generation of KEYWORDS within LOM<br />This was tested on a series of Podcasts produced by CETL ALiC<br />
  3. 3. First … What KEYWORDS would you use to Search for this image?<br />
  4. 4. Purpose of the photograph<br />Description of<br />Mac<br />Chair<br />Desk<br />Window<br />Location<br />Hotel room<br />Manchester<br />File information<br />Time and date (already present)<br />File type <br />Context<br />Hospitality training<br />How to maintain guest rooms. <br />Checking for left key cards.<br />Furniture design<br />Photography<br />Metadata is only from the authors perspective ...<br />The LO may be relevant in many other scenarios <br />
  5. 5. Observations of metadata creation<br />When entering metadata for a learning object observations show that:<br />Phrases rather than single words are used<br />Repeated content is often used<br />Very few keywords are entered if any<br />The keywords used were either very specific or very generic, rarely a mixture of both<br />This creates a problem for searchers of information and limits the possibility of the learning object being found within a repository<br />
  6. 6. Creation Workflows<br />Examination of workflows showed that:<br />Creation of multimedia learning objects revolved around a script<br />Course and module documentation was referenced during creation<br />Contains common content that specifically defines what the learning content is about<br />Contains the context of the learning object<br />There is also the learning objects written content, if any. <br />
  7. 7. Assumptions<br />Documentation describes the learning object<br />More keywords are better<br />This is reliant on good search techniques<br />Not starting from a blank slate is easier<br />Generate a selection list<br />Author still feels in control<br />
  8. 8. Generating Keywords<br />
  9. 9. Example Process<br />To test Keyword generation of the system with multi media. <br />The aim was to produce: <br />more words than the author<br />all the author words<br />relevant words<br />For a Podcast on Accessibility produced by CETL ALiC<br />One of the authors used the following key words and phrases: <br />HCI<br />Accessibility<br />User centred design<br />Disability<br />Six words in total after splitting phrases and removing duplicates<br />The most obvious keyword is missing: Podcast<br />
  10. 10. Results from the Generator<br />Remember that different users will find different aspects of your interface difficult. For exampleusers who are colour blind will not see colours as you intend and may not be able to distinguish between colours on the screen. You can test how your colours will look using an online simulator.<br />Extract from script <br />accessibility <br />blind <br />colours <br />disability <br />example <br />information <br />interface<br />podcasts <br />potential <br />produced <br />reader <br />screen <br />test <br />text <br />user <br />accessible <br />users<br />Missing: <br />HCI<br />centred <br />design<br />From 6 to 14<br />Key<br />Users keywords<br />Similar words removed<br />Appropriate keywords<br />Extracted words<br />
  11. 11. Finally<br />Generated also tested with:<br />Text based learning objects<br />With users within a deposit workflow<br />The generator increases the number of keywords assigned to a learning object<br />Selection enables author control<br />
  12. 12. Thank You. Questions?<br />Dawn Wood & Janet Finlay<br />Leeds Metropolitan University<br /><br /> <br />