Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.
KnowledgeCoin recognizing and rewarding metadata integration and sharing on the semantic web 
Francisco Couto 
Lightning T...
Figure 1. Two pages (scan) from Galilei's Sidereus Nuncius (“The Starry Messenger” or “The Herald of the Stars”), Venice, ...
<?xml version="1.0"?> <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc= "http://purl.org/dc/eleme...
Different Perceptions of Reality
<?xml version="1.0"?> <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc= "http://purl.org/dc/eleme...
Metal 
Silver 
Coinage 
Precious 
Palladium 
Gold 
Platinum 
Copper 
is-a 
mappings
Metal 
Silver 
Coinage 
Precious 
Palladium 
Gold 
Platinum 
Copper 
is-a 
Gold Market Stats 2013 
mapping 
Silver Market ...
Solution: proper data sharing rules 
•So let’s create some Data-sharing Policies and some Compliance and Enforcement activ...
Data-sharing policies 
“Adherence to data-sharing policies is as inconsistent as the policies themselves” “351 papers cove...
Human Factor 
•“More often than scientists would like to admit, they cannot even recover the data associated with their ow...
Incentivize rather than Enforce 
•“to encourage data sharing, systematic reward and recognition mechanisms are necessary”....
What and How to reward? 
We must define: 
1.what to reward and recognize; 
–E.g. Ontological metadata mappings 
2.and meas...
Why metadata and not raw data? 
•Raw data with access restrictions can still be shared 
–Request on demand, or inside a co...
Knowledge rating 
all the links are equal, 
but some links 
are more equal 
than others 
(adaption of George Orwell’s quot...
Knowledge Rating Specificity 
Metal 
Coinage 
Precious 
Gold 
is-a
Knowledge Rating Distinctiveness 
Metal 
Coinage 
Precious 
Gold 
is-a 
Portugal 
Sintra 
part-of
KNOWLEDGE COIN (KC)
Cryptocurrency Components 
•Wallet, define the amount of coins assigned to an individual, i.e. the balance; 
•Mining, the ...
KC Mining
KC Distribution 
•Apply knowledge ratings 
–to the supporting datasets 
–of a new scientific article 
•Recognition stateme...
KC Inflation 
•#KC in circulation will keep growing 
–with the growth of new scientific articles 
–may trigger some distru...
KC Transaction 
•Public KCs transactions: 
–Access to a dataset (raw data) 
–Metadata enrichment of dataset 
–Journal publ...
http://metarate.fc.ul.pt 
And to implement KnowledgeCoins we need RealCoins… PhD scholarship opportunity @Phd Programme Bi...
Upcoming SlideShare
Loading in …5
×

KnowledgeCoin : recognizing and rewarding metadata integration and sharing on the semantic web

1,291 views

Published on

Research is increasingly becoming a data-intensive science, however proper data integration and
sharing is more than storing the datasets in a public repository, it requires the data to be
organized, characterized and updated continuously. This article assumes that by rewarding and
recognizing metadata sharing and integration on the semantic web using ontologies, we are
promoting and intensifying the trust and quality in data sharing and integration. So, the proposed
approach aims at measuring the knowledge rating of a dataset according to the specificity and
distinctiveness of its mappings to ontology concepts. The knowledge ratings will then be used as
the basis of a novel reward and recognition mechanism that will rely on a virtual currency, dubbed
KnowledgeCoin (KC). Its implementation could explore some of the solutions provided by current
cryptocurrencies, but KC will not be a cryptocurrency since it will not rely on a cryptographic proof
but on a central authority whose trust depends on the knowledge rating measures proposed by
this article. The idea is that every time a scientific article is published, KCs are distributed
according to the knowledge rating of the datasets supporting the article.

Published in: Science
  • Be the first to comment

KnowledgeCoin : recognizing and rewarding metadata integration and sharing on the semantic web

  1. 1. KnowledgeCoin recognizing and rewarding metadata integration and sharing on the semantic web Francisco Couto Lightning Talk ISWC2014 – Riva del Garda, Trento, Italy 23th October 2014
  2. 2. Figure 1. Two pages (scan) from Galilei's Sidereus Nuncius (“The Starry Messenger” or “The Herald of the Stars”), Venice, 1610. Goodman A, Pepe A, Blocker AW, Borgman CL, et al. (2014) Ten Simple Rules for the Care and Feeding of Scientific Data. PLoS Comput Biol 10(4): e1003542. doi:10.1371/journal.pcbi.1003542 http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1003542 Galileo integrated •the direct results of his observations of Jupiter •with careful and clear descriptions of how they were performed From “Big” Data to Knowledge
  3. 3. <?xml version="1.0"?> <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc= "http://purl.org/dc/elements/1.1/"> <rdf:Description rdf:about="http://en.wikipedia.org/wiki/Sintra_Collar"> <dc:description> Gold collar. It was made from three circular sectioned and tapering gold bars that are fused at the ends forming a penannular neck-ring. </dc:description> <dc:date>1250BC-800BC (circa)</dc:date> <dc:location> Sintra, Portugal </dc:location> <dc:type> Gold </dc:type> </rdf:Description> </rdf:RDF>
  4. 4. Different Perceptions of Reality
  5. 5. <?xml version="1.0"?> <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc= "http://purl.org/dc/elements/1.1/"> <rdf:Description rdf:about="http://en.wikipedia.org/wiki/Sintra_Collar"> <dc:description> Gold collar. It was made from three circular sectioned and tapering gold bars that are fused at the ends forming a penannular neck-ring. </dc:description> <dc:date>1250BC-800BC (circa)</dc:date> <dc:location> Sintra, Portugal http://yboss.yahooapis.com/geo/placefinder?woeid=748874 </dc:location> <dc:type> Gold http://purl.obolibrary.org/obo/CHEBI_30050 </dc:type> </rdf:Description> </rdf:RDF>
  6. 6. Metal Silver Coinage Precious Palladium Gold Platinum Copper is-a mappings
  7. 7. Metal Silver Coinage Precious Palladium Gold Platinum Copper is-a Gold Market Stats 2013 mapping Silver Market Stats 2013
  8. 8. Solution: proper data sharing rules •So let’s create some Data-sharing Policies and some Compliance and Enforcement activities
  9. 9. Data-sharing policies “Adherence to data-sharing policies is as inconsistent as the policies themselves” “351 papers covered by some data-sharing policy, only 143 fully adhered to that policy” (~40%) “is time-consuming to do properly, the reward systems aren't there and neither is the stick” “Of all the data that are made available, what fraction is actually used by someone else? “ Steven Wiley in Nature, 2011 http://www.nature.com/news/2011/110914/full/news.2011.536.html
  10. 10. Human Factor •“More often than scientists would like to admit, they cannot even recover the data associated with their own published works” http://www.ploscompbiol.org/article/info%3Adoi%2F10.1371%2Fjournal.pcbi.1003542 •“you have no idea the number of excuses people come up with to hang onto their data and not give it to you” Tim Berners-Lee, TED talk, 2009 http://www.ted.com/talks/tim_berners_lee_on_the_next_web
  11. 11. Incentivize rather than Enforce •“to encourage data sharing, systematic reward and recognition mechanisms are necessary”. Principles of data management and sharing at European Research Infrastructures https://zenodo.org/record/8304
  12. 12. What and How to reward? We must define: 1.what to reward and recognize; –E.g. Ontological metadata mappings 2.and measure its value •in quantitative and objective way •knowledge ratings
  13. 13. Why metadata and not raw data? •Raw data with access restrictions can still be shared –Request on demand, or inside a community: –E.g. clinical records for the SemEval competition •Analysis of Clinical Text •measure the value of raw data –is daunting task –but if it is being used and annotated –is because it has value
  14. 14. Knowledge rating all the links are equal, but some links are more equal than others (adaption of George Orwell’s quote of Animal Farm)
  15. 15. Knowledge Rating Specificity Metal Coinage Precious Gold is-a
  16. 16. Knowledge Rating Distinctiveness Metal Coinage Precious Gold is-a Portugal Sintra part-of
  17. 17. KNOWLEDGE COIN (KC)
  18. 18. Cryptocurrency Components •Wallet, define the amount of coins assigned to an individual, i.e. the balance; •Mining, the process of supplying coins to some wallets, i.e. money creation; •and Transaction, the process of transferring coins between two wallets, i.e. money exchange •KC is not a Cryptocurrency
  19. 19. KC Mining
  20. 20. KC Distribution •Apply knowledge ratings –to the supporting datasets –of a new scientific article •Recognition statements –specify a different distribution of the KCs •Not uniformly distributed between author wallets –that may even include other wallets
  21. 21. KC Inflation •#KC in circulation will keep growing –with the growth of new scientific articles –may trigger some distrust on its value •But, scientific articles are peer reviewed –So their number is always limited –and adhesion to real scientific advances guaranteed
  22. 22. KC Transaction •Public KCs transactions: –Access to a dataset (raw data) –Metadata enrichment of dataset –Journal publication fees reductions •may improve their Impact Factor –ISWC registration fee reduction  •Issues –creation of spam mappings –and other security threats
  23. 23. http://metarate.fc.ul.pt And to implement KnowledgeCoins we need RealCoins… PhD scholarship opportunity @Phd Programme Biosys at ULisboa Financed by the Portuguese Fundação para a Ciência e Tecnologia through the Multiannual Funding Programme and the project SOMER (PTDC/EIA- EIA/119119/2010); and by the European Commission through the BiobankCloud project under the Seventh FrameworkProgramme (grant #317871).

×