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Audiovisual Heritage and Participatory Culture
Johan OomenSound and Vision / Vrije Universiteit
Amsterdam
Euscreen workshop
“In the end, the crowd still rules. To be smart at the top, the system has to be smart all the way
through.” (Surowiecki , 2004)
www.waisda.nl
• Inspired by the work of Luis von Ahn (among others)
• The goal of the game is consensus between players (which also works as filter)
• Fun and competition as motivation • Almost 600 hours of material /
2.400+ items
ESP Game and steve.museum
Why?
1. Bridging the semantic gap2. Add more (+ fine grained) knowledge• Time-related metadata (inter-video
search)
3. Role in workprocesses of the future4. Interaction between the archive
/broadcaster and the public• 160k people are volunteering in CH in
the Netherlands (win-win)
• Basic rule – players score points when their tag exactly matches the tag entered by another player within 10 seconds
• Multiple other scoring mechanisms to create various tag incentives
Traffic
• Generating a constant flow of traffic is a challenge! Strong partners and links to Waisda? on external websites proved important.
• Example: in October 2009: great boost through Farmer wants a Wife website
In one week: • Number of tags tripled to 160.000• Number of registered players doubled to 362
Results (evaluation May-November 2009)
• Since the launch in May 2009:• 44,362 pageviews• 12,279 visits (3+ min online)• 555 registered players (but
thousands of anonymous players!)
• 340,551 tags added to 602 items• 42,068 unique tags
Results (cont.)
Matches Waisda?(= 42,068 unique tags have matches)
Matches GTAA & Cornetto(= 14,493)
1/3 of all words are a valid Dutch word
Tag evaluation by documentalists
• Farmer wants a Wife, Westerman’s New World• Tags describe mainly short segments, and are
often not very specific. Tags do often not describe programmes as a whole.
• BUT! Can be solved by applying ontology alignment.
• The WNW tags were most useful and specific: content of a programme influences tags specificity.
Future: Semantic Tagging
• twitter: johanoomen• [email protected]
Promote the use of television content to explore Europe's rich and diverse cultural history.
