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Which clippings match 'Category' keyword pg.1 of 2
01 MAY 2011

Credo Reference Concept Map: visualising search terms for easy reference

"The Concept Map is a visual map that displays how search terms and topics in Credo Reference are interconnected. The Concept Map displays the connections between search results in a visual, interactive and easy–to–use format. It enables users to quickly find information when they don't know what to look for, when they need topic ideas for papers or research projects, or want to expand their knowledge of a given area."

(Credo Reference)



category • citable information • citeclassificationconcept mapcontent • Credo Reference • encyclopaediainformation in contextknowledge managementlibrarylinkmind mappingonline libraryorganising • reference books • resourcesearchsearch for informationvisualisation


Simon Perkins
17 APRIL 2011

Folksonomies: improving tagging technique

"Here are some of the techniques used by professionals:

Universe – knowing the complete vocabulary, so you know what categories are available

Synonyms – that one of the meanins of ultrasound is the same as sonography.

Hierarchy – a Volvo is a kind of car, is a kind of transportation device.

So here are some ideas for how we could improve folksonomy software to make us better at this, without involving any editors.

Suggest tags for me. A Google Suggest–style interface will help familiarize people with the universe of existing tags, so you can use an existing tag rather than invent your own, when the existing tag applies equally well. It would also reduce typos and inconsistencies, like 'blog' vs. 'blogs', and it might serve as inspiration to get past the obvious tags. The pool of tags suggested from could be a weighted list of my own tags, my friends' tags, all tags, and tags other people have already used for this link.

Find synonyms automatically. In the browsing interface, Flickr is pretty good about showing related tags. Why not show these related tags when I am tagging a photo, thus making it easy for me to just add the ones that apply. They could even do a quick lookup on WordNet for more synonyms. Since the related tags in the browsing interface feeds off of tags used on the same images on the input side, this would also help make strong links stronger.

Help me know what tags other people use. When doing both the Google Suggest and the synonyms above, show the most used tags in a larger size than less used tags. There is value in people using the same tag for the same thing, and we want to encourage that, without in any way preventing people from choosing different tag if they want to.

Infer hiearchy from the tags. I have a habit of using multiword tags, so instead of saying 'socialsoftware' like you're supposed to on delicious, I say 'social software', which really makes it two separate tags. That's not necessarily a bad thing, though. If this habit is generally applied, we could look at home many links that are tagged with 'social' are also tagged 'software', and maybe infer that 'social' is frequently used in conjunction with 'software', and thus might imply a special kind of software (or the other way around, that software is a special kind of social), thus offering the combined tag 'social software' to contain links that are tagged with both. A different example would be items tagged 'volvo car'. If most of the time something is tagged 'volvo', it is also tagged 'car', we might infer that volvo is a kind of car.

Make it easy to adjust tags on old content. If the above and other ideas work, people's tagging skills should improve over time. So why not augment the browsing interface so that it's very easy for me to add or remove tags from my iamges or links right there, e.g. from a list of suggested tags on the page, and I'm sure that sometimes, someone would use it. Another incentive to retag my content is if I'm searching for a link on Buenos Aires, but the link wasn't tagged with 'buenosaires', so I find it under 'argentina', say, it should be very easy to add the 'buenosaires' tag to that item."

(Lars Pind, 23 January 2005)


road folksonomies • browsing interfacecategory • conjunction • contentDeliciousFlickrfolksonomy • folksonomy software • Google Suggesthabithierarchyinconsistencies • infer hiearchy • information retrieval • interpersonal information retrieval • intersubjective meaning • link strength • lookup • multiword tags • prompting • related tags • retag • searching • social softwaresoftware • synonym • tag quality • tag suggestion • tagging skills • tags • tags other people • typos • valid tags • vocabulary • WordNet


Simon Perkins
07 MARCH 2011

Trove: repository of Australian cultural heritage

"Trove is a new discovery experience focused on Australia and Australians. It supplements what search engines provide. If you are researching in the fields of the social sciences, literature, local or family history, or need inspiration for your school assignment, then this is the tool for you.

For example if researching images relating to Edmund Barton, our first Prime Minister, results will include descriptions such as people, book, manuscript, map and newspaper articles. A researcher searching for information on Nellie Melba will be presented with a range of results including biographies, pictures, music, newspapers, books etc."

(The National Library of Australia)

Fig.1 Teenage Weekly Supplement (page 5) in Australian Womens Weekly 20 September 1961 [–page4830846/print]



archive • ARO • articlesAustralia • Australian Research Online • biographybookscataloguecategoryclassificationcollectioncontentcultural heritagedigital heritagefamily history • historic newspapers • images • journals • knowledge managementliteraturemagazinesmapsnational cultural heritage onlinenational heritagenational identityNational Library of Australianewspaperrepositoryresourceresourcessearch enginesocial historysocial sciencesTrove • Womens Weekly


Simon Perkins
28 DECEMBER 2010

Web directory: My Virtual Reference Desk

"In June 1995, I began refdesk in an attempt to bring some semblance of order to the chaos of the Internet. Somewhere along the way, refdesk became my passion, my source of bliss. ...

Refdesk has three goals: (1) fast access, (2) intuitive and easy navigation and (3) comprehensive content, rationally indexed. The prevailing philosophy here is: simplicity. 'Simplicity is the natural result of profound thought.' And, very difficult to achieve."

(Bob Drudge)


1995archive • Bob Drudge • cataloguecategoryclassificationcoherencecollectioncontentdirectoryhierarchical orderinghierarchyindexInternetknowledge managementorderorderingpioneering • Refdesk • reference desk • repositoryresourcetechnologyweb directory


Simon Perkins
29 MARCH 2010

The Free Decimal Correspondence

"The Free Decimal Correspondence, or FDC for short, is a set of decimal numbers ranging from 000 to 999[.9999...], each associated with a particular subject, discipline, or group of subjects and disciplines. It's intended to be reasonably compatible with existing and commonly used library decimal classifications and subject headings, but also as freely usable and adaptable as possible. ...

Many libraries use such a system to arrange their books on a shelf (or their electronic items in a list) in the order given by the decimal numbers, so that they're organized in a general hierarchy with items on similar subjects located near each other. These numbers, when assigned to particular items, are referred to as 'call numbers'. For instance, if you're interested in political science, you could go to the items with call numbers between 310 and 320, and find lots of political science resources on similar topics presented next to each other. And you'll find other social sciences nearby as well.

Decimal systems can also be used to give a language–independent representation of a particular concept. (So, for instance, 'mathematics' in English and 'matematica' in Italian can both be expressed by the FDC decimal code '510'.) You can also use FDC to label sets of items you've associated with particular decimal numbers and ranges. ...

The most commonly used decimal call number system is the Dewey Decimal Classification (DDC). We've tried to make this classification compatible with the present–day Dewey system, so the numbers will in many cases be similar in DDC and FDC for similar subjects."

(John Mark Ockerbloom)



call numbers • categoryclassification • DDC • decimal classification • decimal correspondence • decimal system • Dewey Decimal Classificationdisciplines • FDC • Free Decimal Correspondence • hierarchyindexinformation in contextlibrary • library decimal classification • orderingrelationrepresentationsubjecttaxonomy


Simon Perkins

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