Geospatial Semantic Web

Interim (2.5 months) Progress Review for Phase 1

Dr. Bhavani Thuraisingham (Computer Science)Dr. Latifur Khan (Computer Science)

The University of Texas at Dallas

September 20, 2006

Agenda

* 11:30 – 12:00 Welcome, Pick up lunch boxes* 12-12:30 OverviewBhavani Thuraisingham (Professor)Objectives, Accomplishments, Directions* 12:30 – 1:30Task 1: Geospatial Semantic WebGraduate Students: Alam Ashraful and Ganesh Subbiah* 1:30 – 2:15Task 2: Geospatial Data MiningLatifur Khan (Associate Prof)  et al* 2:15 – 2 :45Geospatial data integrationSupported by UTD funds that complements the Raytheon/UTD CollaborationPavan Chittamala, Ryan Layfield (Grad students)* 2:45 – 3:45Discussions and FeedbackAngela Reece-Wilson, Raytheon* 3:45 – 4:00Wrap Up

Vision : Geospatial Data Management

Data Source A

Data Source B

Data Source CSECURITY/ QUALITY

* Semantic Metadata Extraction* Decision Centric Fusion* Geospatial data interoperability through web services* Geospatial data mining* Geospatial semantic web

Tools for Analysts

Objectives of the Project Task 1: Design and prototype a geospatial semantic web Task 2: Tools for Geospatial Data Mining Both tasks are scoped within the allocated funding (50K for 6

months and 15K supplemental funding from UTD) We have obtained additional funding from UTD to carry our

activities to support and enhance the Project with Raytheon

Accomplishments

• Development of Geospatial Ontology – GRDF

• Use-case scenario of GRDF

• Single Interface Integration framework using Semantic Web services (DAGIS)

• Algorithm for Dynamic Web services Composition

• Implementation of Geospatial Operators (e.g., Between)

Subtask 1.1 and 1.2 – Progress ReportTask 1: Accomplishments

Immediate Goals (Phase 1 : Oct 30th)• GRDF-based Semantic Dataset Development with NCTCOG datasets and E-Plan

• SPARQL (Semantic Query Language) execution interface over the datasets

• Future Goals (Phase 2 : January 1 ’07 – June 30 ‘07)

• Advanced QoS parameters for DAGIS

• Semantics-aware Access Control

Task 1: Plans

Accomplishments: August 15-September 15

• Ontology based data mining using SVM techniques

• SPARQL (Semantic Query Language) execution interface over the

datasets

Plans:

Immediate: Until December 31, 2006

Enhance algorithms, prototype

Future (Phase 2 : January 1 ’07 – June 30 ‘07)

• Data Mining toolkit

Task 2: Accomplishments and Plans

Geospatial Data Integration: UTD Funding On-site chemical spill management

teams face a number of challenges

- Multiple sources of data at a variety of security levels

- Overlapping areas of authority

- Time-critical objectives

We have recently completed a project to integrate UTD’s E-Plan system with CH2M Hill’s iCIT solution

- Knowledge aggregator that connects E-Plan’s secure chemical reference web interface with iCIT’s collaboration environment

- Information is only made available to authorized individuals

Framework for Geospatial Data Security

DATA PRESENTATION COMPONENTS

Access Control Module

Geospatial Data Registration spatial and temporal registration of geospatial data

Data Integration Services&

Data Repository Access

DATA ACCESS LAYER

DAC/RBAC Policy Specification

Policy ReasoningEngine

Trust & Privacy Management

Authentic Data Publication

Auditing

Misuse Detection

SECURITY LAYER

OpenGeospatialConsortiumFramework

Core &ApplicationSchemas

GeospatialFeatures

GeographyMarkupLanguage

Metadata

GIS Web Services Traditional GIS

Wrapper

GeospatialDataRepositories

Some Related Activities in Geospatial Data

UTD Joined OGC (Open Geospatial Consortium) – will be a panelist for OGC’s Interoperability Day at the next meeting, October 4, 2006

Joined USGIF (GEOINT) and will be a member of their academic curriculum and K-12

Participating in UTD’s program in GIS Reading GEOINT research report by NGA to determine how

we can structure our research program Incorporate Geospatial data management units into our

courses for AFCEA