Semantic Web: Past, Now, Future Ying Ding SLIS, IUSlide 2
What is Semantic Web?Slide 3
What is the Semantic Web? "An augmentation of the present Web in which data is given all around characterized importance, better empowering PCs and individuals to work in participation." Sir Tim Berners-Lee et al., Scientific American, 2001: tinyurl.com/i59p "… permitting the Web to achieve its maximum capacity… " with expansive outcomes "The up and coming era of the Web"Slide 4
Semantic Web Tim Berners-Lee has a dream of a Semantic Web which has machine-justifiable semantics of data, and a huge number of little particular thinking administrations that offer help in mechanized errand accomplishment in light of the open dataSlide 5
The Semantic Web fundamentally "semantic" stands for "the significance of": The Beatles were a mainstream band from Liverpool; Lennon was an individual from the Beatles; "Hey Jude" was recorded by the Beatles The Semantic Web is a Web that can depict things in a way that PCs can prepareSlide 6
Metadata and SemanticsSlide 7
Ontology The semantic Web is basically in view of ontologies are formal and consensual determinations of conceptualizations… giving a mutual and basic comprehension of an area that can be conveyed crosswise over individuals and application frameworksSlide 8
An extremely straightforward Ontology Ontologies portray ideas and their Relations. claims Person Device is-a has Audio-Device VolumeControlSlide 9
Semantic Web - Language tower Tim Berners-Lee Keynote Speech in 2005Slide 10
What is Semantic Web for? Coordinating - attempting to take care of the issue of information and administration joining Searching - Providing better correspondence amongst human and PCs by calculator processable semantics to information.Slide 11
Semantic Integration Top-Down approach: Building up various area ontologies for better information coordination and correspondence inside the space: PapiNet.org: Vocabulary for Paper Industry BPMI.org: Vocabulary for trading Business Process Models XML-HR: Vocabularies for (HR) DMTF: Distributed Management Task Force: Vocabularies for overseeing endeavorsSlide 12
Semantic Integration CRM Marketing Sales Semantic Integration Semantics Syntax Software Hardware Plumbing (organizing: tcp/ip, corba, rmi, http, cleanser)Slide 13
Semantic Differences: Example Marketing Sales ? Individual P# 76798 Name de Bruijn FName Jos DName Jos de Bruijn BDate 1979-06-23 LSale 2001-04-07 Customer CustNr 43526 Name Jos Debruijn Surname Debruijn Initials J BDate 1979-06-23 Syntax Semantics 1. unmistakable proportionate 2. proportionate unmistakable 3. proportionate identical 4. unmistakable particularSlide 14
Information Integration Patterns (1): Ad Hoc Integration O(n 2 ) Sales App4 App5 Marketing CRMSlide 15
Information Integration Patterns (2): Global Integration O(n) CRM App4 App5 Global Model Marketing Sales Not silver shot!Slide 16
Semantic SearchingSlide 18
Semantic SearchingSlide 19
Semantic Web: PastSlide 20
WWW – Web 1.0Slide 21
The ebb and flow (syntactic/basic) WebSlide 22
Was the Web intended to be more?Slide 23
How to understand Tim\'s vision Another possibility for "Counterfeit consciousness (AI)"? Information Representation (speaking to semantics) Logic Programming (thinking semantics) Decisions for: Background rationale for semantic web dialect (RDF, OWL) Description Logic DAPAR + EU = DAML+OIL (in 2001)Slide 24
AI Influence Too much AI Ontologies are too overwhelming Too numerous maxims, confused standards, ideas and connections Things are excessively formal Too numerous formal rationale, rationale thinking, Knowledge base, master frameworkSlide 25
Ontology or Oncology? Battle to shape a group EU financing – ontoweb extend ( http://cordis.europa.eu/ist/ka3/iaf/ventures/ontoweb.htm ) Lay the establishment for the introduction of the Semantic Web people group Now it is proceeded as KnowledgeWeb ( http://knowledgeweb.semanticweb.org/semanticportal/sewView/frames.html )Slide 26
Slowly we discovered our Stand in mainstream researchers Own universal gathering (ISWC, ESWC, ASWC) Own diary (JoDS) An exploration field - subjects in numerous other real meetings Education Chances in Industry Semantic Technology ( http://www.semantic-conference.com/) EuropeSlide 27
Semantic Web: NowSlide 28
Social Web – Web 2.0 The term Web 2.0 was made well known by Tim O\'Reilly: http://www.oreillynet.com/bar/an/oreilly/tim/news/2005/09/30/what-is-web-20.html http://en.wikipedia.org/wiki/Web_2.0 "Web 2.0 … has … come to allude to what a few people depict as a moment period of design and application improvement for the World Wide Web." The Web where "normal" clients can meet, team up, and share utilizing social programming applications on the Web (labeled substance, social bookmarking, AJAX, and so forth.) Popular illustrations include: Bebo, del.icio.us, digg, Flickr, Google Maps, Skype, Technorati, orkut, 43 Things, Wikipedia…Slide 29
Social NetworksSlide 30
A move from the Web to a "social Web"Slide 31
When did Web 2.0 show up?Slide 32
Features/standards of Web 2.0 http://www.oreillynet.com/bar/an/oreilly/tim/news/2005/09/30/what-is-web-20.html The Web as stage Harnessing aggregate knowledge Data is the following "Intel Inside" Rich client encountersSlide 33
Web 2.0 image cloudSlide 34
W3C SWEO Linking Open Data Project expects to Publish existing open permit datasets as connected information on the web Interlink things between various information sources Develop customers and applications that expend connected information from the webSlide 35
Bubbles in May 2007 Over 500M RDF triples Around 120K RDF interfaces between information sourcesSlide 36
Bubbles in April 2008 >2B RDF triples Around 3M RDF joinsSlide 37
Organization taking an interest in the LOD people group Academic MIT, Univ Southampton, DERI, Open Univ, Univ London, Univ Hannover, Penn State Univ, Univ Leipzig, Univ Karlsruhe, Joanneum (AT), Free Univ Berlin, Cyc, SouthEast Univ (CN), … Commercial BBC, OpenLink, Talis, Zitgist, Garlik, Mondeca, Renault, Boad InteractiveSlide 38
Power of Linked Data rdf:type ying foaf:Person dblp:publications foaf:name foaf:knows foaf:publication Ying Ding Stefan 72K foaf:based_near dp:population db:Galway dp:Dublin skos:subject dp:Cities_in_IrelandSlide 39
What LOD can bring? It will lift current record web up to an information web LOD programs can give you a chance to explore between various information sources by taking after RDF joins. It can bore down to the lower granularity of the data permitting you for all the more fine pursuit on the web making the question-answer look on the Web conceivable lattice up various information through RDF joins Making the based on-top application simplerSlide 40
DBTune (http://dbtune.org)Slide 41
Industry getSlide 43
Industry get Semantic Technology Conferences – The major modern meeting in semantic web territory. Participation incorporate significant IT monsters (Google, Yahoo, IBM, Oracle, Intel, Vulcan Rader Networks Company raised $18M to actualize semantics Twine (an aggregate semantic learning space): http://www.twine.com/Slide 44
Semantic Web: FutureSlide 45
Metaweb social semantic data spacesSlide 46
1+1>2 Semantic discussions Semantic web journals Semantic wikis Semantic social nets Semantic desktop Semantic Web + social programmingSlide 47
The way to Web 3.0 (the Semantic Web) The Semantic Web exertion is fundamentally towards delivering measures and suggestions that will interlink information and applications The Web 2.0 is about giving client applications Not totally unrelated: http://www.oreillynet.com/xml/blog/2005/10/is_web_20_killing_the_semantic.html With a little exertion, many Web 2.0 applications can and do utilize Semantic Web innovations to incredible advantageSlide 48
Document Web Glued by hyperlinks Data are HTML pages Query result is HTML pages, which can not be further prepared Data are quite recently interlinked, but rather not coordinated Data access through various APIs Data Web Glued by RDF joins Data are RDF triples Query result is RDF triples which can be effectively further handled (e.g., web administrations) Data are interlinked and coordinated, and connections are written Data access through a solitary and institutionalized get to system (possibly it will brought later on LOD API?) Document Web versus Information WebSlide 49
Web 3.0 Social Web + Semantic Web Next era Web Document Web Data Web Service WebSlide 50
Will Google 2.0 be Semantic? Google could be superseded, says web innovator: TimesOnline: http://technology.timesonline.co.uk/tol/news/tech_and_web/article3532832.ece Google 2.0 grasps Semantic Web Government Computer News: http://www.gcn.com/on the web/vol1_no1/44290-1.html#Slide 51
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