Semantic Web

From Federation of Earth Science Information Partners
  • Welcome to the Semantic Web Cluster activity

Cluster Task Activities

Data-type and Service Ontology

White Paper/ Terms of Reference

Semantic Annotation/tagging

Concept Mapping and beyond

Telecons and Meetings

2nd Tuesday of each month: 1100 PT/1200 MT/1300 CT/1400 ET/1900 UT
Toll-free:            800-508-7631  (international call in:  334-323-3031)
Meeting Code:   *8202307* (the * is important)

Next SW Cluster Telecon Agenda

Tuesday, April 10, 2007 telecon was cancelled

Tuesday, May 8, 2007

  • introductions (if required)
  • template for application use cases http://wiki.esipfed.org/index.php/Use_Cases
  • plans for summer meeting (sessions, demonstration projects, etc.) (see Cluster Meetings below)
  • status of white paper on - datatype and service ontology (link to be added)
  • community process for ontology development - www.planetont.org now functioning - please use it
  • other items

Previous Telecon Agenda - Tuesday, March 13, 2007

Agenda:

  • introductions (if required)
  • plans for summer meeting (sessions, demonstration projects, etc.)
  • status of white paper on - datatype and service ontology (attached with Data Model/Ontology paper)
  • community process for ontology development - update
  • status of template for application use cases
  • other items

SW Cluster Telecon Notes

SWTeleconNotes20070109

SWTeleconNotes20070213

SWTeleconNotes20070313

Telecon for 20070410 was cancelled

SWTeleconNotes20070508

Cluster meetings

SW Cluster Meeting Notes

Next business meeting Tuesday July 17 2007 at 7:30pm at the ESIP Federation Meeting.

  • January ESIP Federation meeting
Agenda - http://wiki.esipfed.org/index.php/Iti_2007_winter_workshops#Semantic_Technologies
Tutorial and Semantic Web roadmap presentation
Demos
NOESIS (Presentation)
Beta-release of web portal for NOESIS:
http://noesis.itsc.uah.edu/ contact Rahul Ramachandran for feedback (rramachandran@istc.uah.edu)
  • July ESIP Federation meeting (July 17-20, 2007, Madison, WI)
Cluster workshop/semantic web tutorial - Tuesday July 17 2 - hour (TBD) http://wiki.esipfed.org/index.php/Summer_2007_Technical_Workshops
Cluster meeting - Tuesday July 17 late PM
Plenary presentation - Wednesday July 18 AM (NOTE CHANGE IN DAY) includes demos
Use case scenarios working session - Thursday July 19 PM http://wiki.esipfed.org/index.php/Summer_2007_Session:_Use_Case_SWAT
Call for presentations and demonstrations (current submissions follow)
"Knowledge Modeling and Discovery: Understanding Risks, Outcomes and the Ever Changing Nature of Complex Systems" Presenter: Danielle Forsyth, CEO & Co-Founder, Thetus Corporation. 1.5 - 2.0 hours. Abstract:

Advances in collection technology have fueled an unprecedented increase in the amount of data generated in earth sciences research. The majority of critical information is never located and leveraged because traditional information management systems are not designed to cope with massive amounts of data pouring in from satellites and sensors as well data residing in silos—structured using proprietary, inaccessible metadata formats. Designed to enable users to model, discover, track, and evolve information from within disparate stores of complex, multi-layered data, Thetus Publisher provides the essential component to complement traditional information management systems and enable data-rich, knowledge poor earth sciences organizations to realize the full potential of their most valuable assets: knowledge and knowledge workers. In the earth sciences, organizations must process and analyze massive amounts of complex, multi-source, multi-format data in order to analyze, hypothesize, predict, and act. Semantically-based knowledge modeling and discovery systems allow organizations to integrate, automate, and enhance spatial and non-spatial data within a dynamically-evolving knowledge base, enabling users to search, relate, annotate, and share information across multiple communities of interest.

"Customizing a Semantic Search Engine and Resource Aggregator for different Science Domains" Presenter: Rahul Ramachandran, UAH

The goal for search engines is to return results that are both accurate and complete. The search engines should find only what the users really want and everything they really want. Search engines (even meta search engines) lack semantics. The basis for search is simply based on string matching between the user’s query term and the resource database, thus the semantics associated with the search string is not captured. For example, if a atmospheric scientist is searching for “pressure” related web resources, most search engines return inaccurate results such as web resources related to blood pressure. Noesis is a meta-search engine and a resource aggregator that has been designed to utilize domain specific ontologies to provide specialized scoped search capabilities. Noesis uses domain ontologies to help the user scope the search query to ensure that the search results are both accurate and complete. Semantics are captured in the domain ontologies by defining terms along with their synonyms, specializations, generalizations and related concepts. These domain ontologies are used by Noesis to guide the user to refine their search query and thereby reduce the user’s burden of experimenting with different search strings. Noesis also serves as a resource aggregator as it categorizes the search results from different online resources such as education materials, publications, datasets, web search engines that might be of interest to the user. Noesis can be customized for use in different domains by configuring it to access different ontologies or to search different online resources. Currently we have a general purpose atmospheric science version of Noesis available, and we are creating a coastal ecology version specialized for the Gulf of Mexico Research Collaborative, a NASA Applications project. In addition Noesis portlets for the ESIP Federation Environmental Information Exchange and Geospatial One Stop are planned.

Related Activities

Use Cases

Preamble needed to introduce role of general ESIP Use Cases to drive semantic web application development.

http://wiki.esipfed.org/index.php/Use_Cases

NASA Working Groups

  • NASA Earth Science Data System Working Group/ Technology Infusion Working Group/

Semantic Web Sub-Group Activities: http://teambps.mywsssite.com/seeds/wg/infusion/default.aspx

  • Semantic Web Technology Infusion Roadmap
http://teambps.mywsssite.com/seeds/wg/infusion/Semantic%20Web%20Documents/Forms/AllItems.aspx
  • Semantic Web demos
NOESIS (presented by Ken Kaiser)
Web services discovery (Peng Yue and Liping Di)
Ontology collaboration website (Peter Fox and Rob Raskin)