The state of VOEvent semantics THE US NATIONAL VIRTUAL OBSERVATORY

Slides:

Advertisements

Similar presentations

September 13, 2004NVO Summer School1 VO Protocols Overview Tom McGlynn NASA/GSFC T HE US N ATIONAL V IRTUAL O BSERVATORY.

Advertisements

CH-4 Ontologies, Querying and Data Integration. Introduction to RDF(S) RDF stands for Resource Description Framework. RDF is a standard for describing.

CS570 Artificial Intelligence Semantic Web & Ontology 2

1 Publishing Linked Sensor Data Semantic Sensor Networks Workshop 2010 In conjunction with the 9th International Semantic Web Conference (ISWC 2010), 7-11.

Building and Analyzing Social Networks Web Data and Semantics in Social Network Applications Dr. Bhavani Thuraisingham February 15, 2013.

The Web of data with meaning... By Michael Griffiths.

Sébastien Derriere IVOA interoperability meeting Victoria 2010 may 21 Semantics summary.

Ontology Notes are from:

Intelligent Systems Semantic Web. Aims of the session To introduce the basic concepts of semantic web ontologies.

RDF: Building Block for the Semantic Web Jim Ellenberger UCCS CS5260 Spring 2011.

Semantic Web Presented by: Edward Cheng Wayne Choi Tony Deng Peter Kuc-Pittet Anita Yong.

National libraries and identity in the Semantic Web Gordon Dunsire BNE, Madrid, 14 Dec 2011.

Semantic Web Technologies Lecture # 2 Faculty of Computer Science, IBA.

RDA and Linking Library Data VuStuff III Conference Villanova University, Villanova, PA October 18, 2012 Dr. Sharon Yang Rider University.

Semantic Web Technologies ufiekg-20-2 | data, schemas & applications | lecture 21 original presentation by: Dr Rob Stephens

Distributed Access to Data Resources: Metadata Experiences from the NESSTAR Project Simon Musgrave Data Archive, University of Essex.

Practical RDF Chapter 1. RDF: An Introduction

INF 384 C, Spring 2009 Ontologies Knowledge representation to support computer reasoning.

The Semantic Web Web Science Systems Development Spring 2015.

Metadata. Generally speaking, metadata are data and information that describe and model data and information For example, a database schema is the metadata.

1 What is an Ontology? n No exact definition n A tool to help organize knowledge n Or a way to convey a theory on how to represent a class of things n.

©Ferenc Vajda 1 Semantic Grid Ferenc Vajda Computer and Automation Research Institute Hungarian Academy of Sciences.

The Semantic Web and expert metadata: pull apart then bring together Presented at 12.seminar Arhivi, Knjižnice, Muzeji Nov 2008, Pore č, Croatia.

SKOS. Ontologies Metadata –Resources marked-up with descriptions of their content. No good unless everyone speaks the same language; Terminologies –Provide.

The future of the Web: Semantic Web 9/30/2004 Xiangming Mu.

Introduction to the Semantic Web and Linked Data Module 1 - Unit 2 The Semantic Web and Linked Data Concepts 1-1 Library of Congress BIBFRAME Pilot Training.

Understanding RDF. 2/30 What is RDF? Resource Description Framework is an XML-based language to describe resources. A common understanding of a resource.

Shridhar Bhalerao CMSC 601 Finding Implicit Relations in the Semantic Web.

Extending the MDR for Semantic Web November 20, 2008 SC32/WG32 Interim Meeting Vilamoura, Portugal - Procedure for the Specification of Web Ontology -

ISO/IEC JTC 1/SC 32 Plenary and WGs Meetings Jeju, Korea, June 25, 2009 Jeong-Dong Kim, Doo-Kwon Baik, Dongwon Jeong {kjd4u,

THE BIBFRAME EDITOR AND THE LC PILOT Module 3 – Unit 1 The Semantic Web and Linked Data : a Recap of the Key Concepts Library of Congress BIBFRAME Pilot.

ELIS – Multimedia Lab PREMIS OWL Sam Coppens Multimedia Lab Department of Electronics and Information Systems Faculty of Engineering Ghent University.

The VAO is operated by the VAO, LLC. Ashish Mahabal Ciro Donalek Matthew Graham Ray Plante George Djorgovski.

THE SEMANTIC WEB By Conrad Williams. Contents  What is the Semantic Web?  Technologies  XML  RDF  OWL  Implementations  Social Networking  Scholarly.

CS621 : Artificial Intelligence Pushpak Bhattacharyya CSE Dept., IIT Bombay Lecture 12 RDF, OWL, Minimax.

USB for Audio There are also several USB Audio chips. You install a custom driver on the host computer, and the USB sound device appears as a Windows (or.

An Ontology-based Approach to Context Modeling and Reasoning in Pervasive Computing Dejene Ejigu, Marian Scuturici, Lionel Brunie Laboratoire INSA de Lyon,

KAnOE: Research Centre for Knowledge Analytics and Ontological Engineering Managing Semantic Data NACLIN-2014, 10 Dec 2014 Dr. Kavi Mahesh Dean of Research,

Semantic Web COMS 6135 Class Presentation Jian Pan Department of Computer Science Columbia University Web Enhanced Information Management.

The Semantic Web. What is the Semantic Web? The Semantic Web is an extension of the current Web in which information is given well-defined meaning, enabling.

VOEvent and the Registry Introducing VOEventStream and VOEventService Roy Williams Caltech.

Semantic Web ０６ T ０００６ YOSHIYUKI Osawa. Problem of current web  limits of search engines Most web pages are only groups of character strings. Most web.

RDFa Primer Bridging the Human and Data webs Presented by: Didit ( )

Author: Akiyoshi Matonoy, Toshiyuki Amagasay, Masatoshi Yoshikawaz, Shunsuke Uemuray.

Semantic Web. P2 Introduction Information management facilities not keeping pace with the capacity of our information storage. –Information Overload –haphazardly.

Setting the stage: linked data concepts Moving-Away-From-MARC-a-thon.

SEMANTIC WEB Presented by- Farhana Yasmin – MD.Raihanul Islam – Nohore Jannat –

Introduction: AstroGrid increases scientific research possibilities by enabling access to distributed astronomical data and information resources. AstroGrid.

The Semantic Web By: Maulik Parikh.

RDFa How and Why Ralph R. Swick World Wide Web Consortium

Keyword Search over RDF Graphs

Yaşar Tonta & Orçun Madran [yasartonta, Hacettepe University

ece 627 intelligent web: ontology and beyond

Middleware independent Information Service

MDR for the Semantic Web: Supporting Ontology Concept

Grid Computing 7700 Fall 2005 Lecture 18: Semantic Grid

Analyzing and Securing Social Networks

Portfolios THE US NATIONAL VIRTUAL OBSERVATORY

Diane Vizine-Goetz OCLC Research

PREMIS Tools and Services

Grid Computing 7700 Fall 2005 Lecture 18: Semantic Grid

Session 2: Metadata and Catalogues

Information Networks: State of the Art

Linked Open Data in 10 Minutes Sandro Hawke, W3C

Some thoughts on an annotations standard

Taxonomy of public services

Linked Data 101 Things, URIs, RDF, Triples, Turtle, Ontologies, Vocabularies and SPARQL Linked Data is our Implementation choice for FAIR.

VOEvent client software

Taxonomy of public services

Presentation transcript:

The state of VOEvent semantics THE US NATIONAL VIRTUAL OBSERVATORY Matthew J. Graham (Caltech, NVO) IVOA Strasbourg: Semantics I 26 May 2009

What is semantics important? Transient astronomy suffers from: heterogeneous data distributed data x-scale data Humans are: slow expensive non-algorithmic untrustworthy Semantics makes data machine-processible so computers can do the grunt work 26 May 2009 2

Semantic technologies RDF (Resource Description Framework): a family of W3C specifications for conceptual modelling a fact is a subject-predicate-object triple various serializations: RDF/XML, RDFa, N3 Concept schemes: controlled vocabularies taxonomies ontologies Knowledge bases: triple/quad store relational db with a suitable front end (e.g. d2r) SPARQL 26 May 2009 3

De Vorerum Natura The VOEvent specification states: “The <What> and <Why> elements work together to characterize the nature of a VOEvent” Specific semantic components: <What>: <Param name=“” value=“” ucd=“” unit=“”/> <Group name=“”> <Why> <Concept>…</Concept> 26 May 2009 4

Control your language What: Why: Register data dictionaries used by event authors: SkyAlert VO registry (part of VOEventStream registry extension) Group name + Param name must be unique Why: Transients classification scheme from dotastro.org Astronomical object type ontology from CDS/EuroVOTech Transients ontology from Caltech 26 May 2009 5

dotastro.org 128 classes Based on GCVS 26 May 2009 6

ObjectType ontology ~80 variable classes Multiple inheritance Properties 26 May 2009 7

Transients ontology  231 classes 26 May 2009 8

Looking for domain experts If interested in contributing scientific domain knowledge, please contact: mjg@caltech.edu 26 May 2009 9

Managing followup information 26 May 2009 10

Contextual technologies Linked Data – connects two URIs with an owl:sameAs: same individual with same identity UMBEL – a lightweight subject concept reference structure; an infocline OAI ORE – describes aggregations of Web resources 26 May 2009 11

Data portfolio 26 May 2009 12

Summary In the era of data intensive astronomy (Astronomy 2020), semantic technology (astroinformatics) provides the structural underpinnings for doing science Bulk of data activities will be performed by intelligent agent systems Continuing efforts to develop usable ontological structures www.practicalastroinformatics.org Looking for domain experts: mjg@caltech.edu 26 May 2009 13