ESWC Day 1
Invited Lecture - Stefano Ceri
- Power of modeling -> dealing with web innovation.
WebML makes the distinction between the (orthogonal) aspects:
- Data
- Hypertext -> logic of web interfacing
- Presentation
Implemented in an eclipse environment: WebRatio (used to build e.g. the Acer company website)
- Hypertext: Provides siteview, area, page, unit, operation. The design process is a loop... this loop can be traversed in 5 minutes
- Extend WebML to deal with innovation --> add process modeling steps to the methodology.
- Generate skeleton WebML from BPM using XSLT
- Define a standard sub-model for processes
- Extend with web-services
- From communication with users to communication with services
- Provide a standard sub-model of services
- Units: WSDL support & XML transformations
- Semantic Services using WSMO -> how to obtain _automatic_ semantic annotation of services?
- Extra steps (using WSMO Flight)
- Import ontologies
- Semantic Annotation
- Extra units
- Query units to graphically build queries
- Generate WSML ontology from MebML (capability, choreography and goal generator)
Session: Case Studies
IMPORTNet - Mechatronics Domain - Damjanovic
- Mechatronics involves a lot of collaboration between engineers (different sub-fields)
- There is a lot of correspondence between ontology and mechatronic engineering
- Did a survey of existing methodology:
- Methontology, Diligent, On-To-Knowledge, are all 'agnostic' wrt. the knowledge representation language
- Therefore chose DynamONT, which is not agnostic but has DOLCE as its target ontology representation language.
- Uses DOLCE's ontology design patterns
- Did not use pre-existing ontologies except DOLCE
- Did not give a clear answer to the question why they use DOLCE, apparently the DynamONT is the 'official' methodology in Austria.
Media, Politics and the Semantic Web - Wouter van Atteveld
- Interplay between media, politics, public.
- Want to measure _media content_
- Automatic text analysis (difficult) vs manual text analysis (expensive)
- Need for large datasets. Important to share, combine, reuse.
- Interoperability of *primitives* -> standardization
- Network Translation Analysis (methodoloty in social science), actually quite cool.
SEEMP - E. Della Valle
- Employment Mediation Marketplace
- Minimal shared commitment to communicate between vocabularies of multiple _public_ employment services
- Uses WSMT (Webservice Modelling Toolkit), an Eclipse application.
ExpertFinder - Malgorzata Mogol and Axl
- Reuses and combines FOAF, and other vocabularies to describe experts, their knowledge, and interconnections.
See http://rdfweb.org for ExpertFinder
Invited Lecture - Ning Zhong
About Web Intelligence:
- Applying techniques of IT&AI to the web
- Introduces new challenges
- Enhancement of AI & IT
Session
"Empowering Software Maintainers" - Rene Witte et al.
- Ontologies to check & generate instances form java code and software documentation
- Use the ontology to do code analysis.
Any World Access to OWL from Prolog - Pascal Hitzler and Tobias Matzner
Implemented "Any world semantics" (Karlsruhe) using SWI-Prolog and KAON2
PrOWLog: http://logic.aifb.uni-karlsruhe.de/wiki/PrOWLog
Posters
SemDAV
Semantic 'file system'-like interface. Looks really nice, at http://www.semdav.org
ESWC Day 2
Invited Lecture - Gottlob
Implemented the LiXto system. An ELog system, that supports a monadic datalog for traversing webpages and do data extraction. There's a wvisual wrapper, you can create queries/templates through a GUI. It's free too.
Session
Extract RDF from Wikipedia Infoboxes - Auer
http://aksw.org and http://dbpedia.org (also on sourceforge).
Quite nice, as it allows you to query a lot of information implicit in Wikipedia.
- Many "literals" remain after translation, i.e. this makes it rather slow
- Supports extraxtion but no feed-back into Wikipedia
- .... SNORQL (?)
- Applicable to all wikipedia installations
- Future: query wikipedia directly through a SPARQL end-point
Semantic Annotation of Scientific Publications - Tudor Groza and Siegfried Handschuh
SALT.
Supports LaTeX, but should also be usable for other formats.
- Generates XMP (PDF metadata) trhough the use of a LaTeX package.
- Allows for inline N3 annotations
- Text structure based on standards such as RST and ABCDE
See http://salt.semanticweb.org
Mining the web through verbs - Inescid, Lisboa
Heuristics -> relating entities to the closest verbs.
Cross-domain, shallow heuristics.
Invited Lecture - Ron Brachman
Important article about Web 2.x by Mark Greaves in IEEE Intelligent Systems
New "categories" of computer science: bring together traditional disciplines:
- "Finding"-science & systems.
- Community science & systems
- Algorithmic advertising
- Computational Micro-economics (computer science & economics)
- Media Experiences
- Data science
- Nature, volume & flow in large companies
- Data as a macro phenomenon
Finding Science
- From IR to contextual information supply.
- Social search: the people factor
- It's about results, not documents
- 40-65% of searches is 'to learn something', informational
- 25-25% of searches is navigational
- 35-20% of searches is transactional (service access, download, shop)
- Issues: representation of context, user and structure
Community Science
- Social networks: need sociologists
- Understanding online communities
- "Six Degrees", the interconnected age (book)
- Four types of communities: social, enthousiasts, knowledge, marketplace
- Search within a group? What is the right group?
- Example: the DBLife portal for the db community supports social search
- Example: http://answers.yahoo.com
- Facebook
- Yahoo "myweb 2.0" augment with community search
- "The wisdom of crowds", Janis Surowiecki (book) (markets)
Remember:
- Ads pay the bills
- Incentive systems
- Match Ads to user
(see the Web Science Initiative at WWW)
Session
TeleTask
Semantic composition of lecture subparts. Uses DL (not planning). This is somewhat similar to process descriptions.