Medical Information Systems
Interoperability and Retrieval (Ongoing)
The new era electronic health
information systems has introduced a number of research and
development issues whereby the efficient integration of various
health information domains is needed and timely retrieval and access
to best practice information resources is vital. We are currently
investigating the use of ontology based annotation and retrieval of
Medical Therapeutic Guidelines (TG). The use of ontologies is
intended to produce semantically correct results whilst retrieving
information from the vast knowledge sources contained in the TG.
This project is an extension and/or an application of a previous
project involving the development of novel method, called MOVE (see
below), for deriving semantically correct and independent
sub-ontologies from a massively sized base ontologies.
Contact:
Mehul Bhatt
Synthetic
Environment Representational Semantics Using the Web-Ontology
Language
(Completed)
The application of
Ontologies for the definition and interoperability of complementary
taxonomies has been well-recognised within the Modelling &
Simulation (M&S) community. Our research pertaining to the
specification of Synthetic Environment (SE) representational
semantics has proposed the use of an Synthetic Environment Data
Representation Ontology (sedOnto), which is modelled using
W3C’s Web Ontology Language (OWL). The vocabulary specified in
sedOnto is based the SEDRIS Data Representation Model (DRM), which
is a technological framework for SE data interchange and
interoperability. Associated with sedOnto is STOWL - SEDRIS
To OWL Transform that automates the transformation of
a SEDRIS based SE to a Web-Ontology based representation scheme in
the OWL language. The target representation scheme, which shall be
based on sedOnto, is in actuality an instantiation of the SE
data representation terminology as specified by sedOnto. Such a
transformation has many perceived advantages: It enhances SE
interoperability by utilizing a Web-Ontology based approach for the
specification of SE representation data, is consistent with existing
industry based SE representation standards, namely SEDRIS, and that
the representation scheme facilitates ontological reasoning over SE
objects; a facility that is not directly supported by the SEDRIS
DRM.
Contact:
Mehul Bhatt
A Distributed
Approach to Materialized Ontology View Extraction (MOVE)
(Completed)
The new era of
semantic web has enabled users to extract semantically relevant data
from the web. The backbone of the semantic web is a shared uniform
structure which defines how web information is split up regardless
of the implementation language or the syntax used to represent the
data. This structure is known as an ontology. As information on the
web increases significantly in size, Web Ontologies also tend to
grow bigger, to such an extent that they become too large to be used
in their entirety by any single application. This has stimulated our
work in the area of sub-ontology extraction where each user may
extract optimized sub-ontologies from an existing base ontology.
Sub-ontologies are valid independent Ontologies, known as
materialized Ontologies, that are specifically extracted to meet
certain needs. Because of the size of the original ontology, the
process of repeatedly iterating the millions of nodes and
relationships to form an optimized sub-ontology can be very
extensive. Therefore we have identified the need for a distributed
approach to the extraction process. As Ontologies are currently
widely used, our proposed approach for distributed ontology
extraction will play an important role in improving the efficiency
of information retrieval.
This project has
been (partly) financially supported by the
Victorian Partnership For Advanced Computing
(VPAC) Expertise Grant Round 5, No:EPPNLA090.2003. All
implementation was done using VPAC's supercomputing facilities.
Contact:
Mehul Bhatt
Web Content Management System using Oracle 10g
(Ongoing)
Project is related to Web content management design and implementation
using Oracle 10g. In this project, I have developed a design and then
implemented it as a web based technique that allows users to
upload/store their documents (any format pdf, ppt, xls, doc, html,
txt, xml) and presentation artifacts into relational database tables (in
my case its Oracle 10g).
The main implementation and design revolves around the features of
Oracle HTTP Server
together with MOD PL/SQL supported in Oracle 10g. Integrating the
features of both the
technologies the system provides the feature of uploading and
downloading of documents (as
BLOBs). Using indexing technique the system has the feature of allowing
the user to do
keyword search on the uploaded documents.
The system also includes the feature of storing the presentation details
as well. For
example user creates a NEWS item and can attach/upload a logo for it,
can set up the look
and feel of the News content by formatting and aligning the text etc.
Contact:
Jotpal Singh
Database development of Health Management System
(Ongoing)
This project involves the management and development of the
database of a health management system (Web based system). The data
is stored in a relational database, but taking into account the number of
retrievals from the database tables, we access it in the XML format. The
basic idea is to speed up the database access process.
Contact:
Jotpal Singh
