October 07, 2011
What is and how to use open government data

Presentation given by Dr. Rommel N. Carvalho at the Seminar given in the Masters Program of the Computer Science Department from University of Brasília (UnB).

Abstract (in Portuguese):
A Web Semântica visa associar os dados disponibilizados na Web aos seus significados de forma a possibilitar que esses dados sejam compreensíveis tanto por humanos quanto por máquinas. Isso permitirá que tarefas, antes realizadas apenas por humanos, possam agora ser delegadas a máquinas. Técnicas de Web Semântica têm se difundido com o significativo aumento no número de aplicações que fazem uso de ontologias e semântica através de tecnologias como RDF, OWL, dentre outras, e as várias iniciativas espalhadas pelo mundo referente à disponibilização de dados abertos, em especial, de dados abertos governamentais. Dados abertos governamentais são definidos pela W3C – Consórcio da Web, como “a publicação e disseminação na Web de dados gerados pelo Setor Público, compartilhados em formato bruto e aberto, compreensíveis logicamente, de modo a permitir sua reutilização em aplicações digitais desenvolvidas pela sociedade”. O objetivo dessa palestra é apresentar os principais conceitos que norteiam as diversas iniciativas de dados abertos governamentais, a situação atual dessa iniciativa no Brasil, os benefícios que essa iniciativa traz para a sociedade como o uso desses dados abertos para contribuir com a melhoria e transparência da gestão pública.

July 07, 2011
Modeling a Probabilistic Ontology for Maritime Domain Awareness

Presentation given by Dr. Rommel N. Carvalho at the 14th International Fusion Conference in July 07, 2011, Chicago, IL, USA.

**PhD Defense** June 28, 2011
Probabilistic Ontology: Representation and Modeling Methodology

Presentation given by Rommel N. Carvalho at George Mason University on his final and public PhD defense.

November 7, 2010
PR-OWL 2.0 - Bridging the gap to OWL semantics

Presentation given by Rommel Carvalho at the 6th Uncertainty Reasoning for the Semantic Web Workshop at the 9th International Semantic Web Conference in November 7, 2010.

November 7, 2010
SWRL-F - A Fuzzy Logic Extension of the Semantic Web Rule Language

Presentation given by Tomasz Wlodarczyk at the 6th Uncertainty Reasoning for the Semantic Web Workshop at the 9th International Semantic Web Conference in 2010.

November 7, 2010
Default Logics for Plausible Reasoning with Controversial Axioms

Presentation given by Thomas Scharrenbach at the 6th Uncertainty Reasoning for the Semantic Web Workshop at the 9th International Semantic Web Conference in 2010.

November 7, 2010
Tractability of the Crisp Representations of Tractable Fuzzy Description Logics

Presentation given by Fernando Bobillo at the 6th Uncertainty Reasoning for the Semantic Web Workshop at the 9th International Semantic Web Conference in 2010.

November 7, 2010
PrOntoLearn: Unsupervised Lexico-Semantic Ontology Generation using Probabilistic Methods

Presentation given by Saminda Abeyruwan at the 6th Uncertainty Reasoning for the Semantic Web Workshop at the 9th International Semantic Web Conference in November 7, 2010.

July 27, 2010
PROGNOS: Predictive Situational Awareness with Probabilistic Ontologies - Slides

Presentation given by Rommel Carvalho at the 13th International Conference on Information Fusion. Slides.

July 27, 2010
PROGNOS: Predictive Situational Awareness with Probabilistic Ontologies - Part 1 of 3

Presentation given by Rommel Carvalho at the 13th International Conference on Information Fusion. Part 1 of 3.

July 27, 2010
PROGNOS: Predictive Situational Awareness with Probabilistic Ontologies - Part 2 of 3

Presentation given by Rommel Carvalho at the 13th International Conference on Information Fusion. Part 2 of 3.

July 27, 2010
PROGNOS: Predictive Situational Awareness with Probabilistic Ontologies - Questions - Part 3 of 3

Presentation given by Rommel Carvalho at the 13th International Conference on Information Fusion. Questions - Part 3 of 3.

July 20, 2010
Compatibility Formalization Between PR-OWL and OWL - Slides

Slides from presentation given by Rommel Carvalho at the First International Workshop on Uncertainty in Description Logics (UniDL) on Federated Logic Conference (FLoC) 2010.

May 18, 2010
High Level Fusion and Predictive Situational Awareness with Probabilistic Ontologies - Slides

Slides from presentation given by Paulo Costa at the AFCEA-GMU C4I Center Symposium - Critical Issues in C4I 2010.

December 16, 2009
Probabilistic Ontology Modeling Using UnBBayes - Part 1 of 10

In this video we discuss how to model probabilistic ontologies using PR-OWL/MEBN in UnBBayes. This session was a video conference between PhD students from the Institute of Business Administration (www.iba.edu.pk) and Rommel Carvalho from George Mason University (www.gmu.edu). Part 1 of 10.

December 16, 2009
Probabilistic Ontology Modeling Using UnBBayes - Part 2 of 10

In this video we discuss how to model probabilistic ontologies using PR-OWL/MEBN in UnBBayes. This session was a video conference between PhD students from the Institute of Business Administration (www.iba.edu.pk) and Rommel Carvalho from George Mason University (www.gmu.edu). Part 2 of 10.

December 16, 2009
Probabilistic Ontology Modeling Using UnBBayes - Part 3 of 10

In this video we discuss how to model probabilistic ontologies using PR-OWL/MEBN in UnBBayes. This session was a video conference between PhD students from the Institute of Business Administration (www.iba.edu.pk) and Rommel Carvalho from George Mason University (www.gmu.edu). Part 3 of 10.

December 16, 2009
Probabilistic Ontology Modeling Using UnBBayes - Part 4 of 10

In this video we discuss how to model probabilistic ontologies using PR-OWL/MEBN in UnBBayes. This session was a video conference between PhD students from the Institute of Business Administration (www.iba.edu.pk) and Rommel Carvalho from George Mason University (www.gmu.edu). Part 4 of 10.

December 16, 2009
Probabilistic Ontology Modeling Using UnBBayes - Part 5 of 10

In this video we discuss how to model probabilistic ontologies using PR-OWL/MEBN in UnBBayes. This session was a video conference between PhD students from the Institute of Business Administration (www.iba.edu.pk) and Rommel Carvalho from George Mason University (www.gmu.edu). Part 5 of 10.

December 16, 2009
Probabilistic Ontology Modeling Using UnBBayes - Part 6 of 10

In this video we discuss how to model probabilistic ontologies using PR-OWL/MEBN in UnBBayes. This session was a video conference between PhD students from the Institute of Business Administration (www.iba.edu.pk) and Rommel Carvalho from George Mason University (www.gmu.edu). Part 6 of 10.

December 16, 2009
Probabilistic Ontology Modeling Using UnBBayes - Part 7 of 10

In this video we discuss how to model probabilistic ontologies using PR-OWL/MEBN in UnBBayes. This session was a video conference between PhD students from the Institute of Business Administration (www.iba.edu.pk) and Rommel Carvalho from George Mason University (www.gmu.edu). Part 7 of 10.

December 16, 2009
Probabilistic Ontology Modeling Using UnBBayes - Part 8 of 10

In this video we discuss how to model probabilistic ontologies using PR-OWL/MEBN in UnBBayes. This session was a video conference between PhD students from the Institute of Business Administration (www.iba.edu.pk) and Rommel Carvalho from George Mason University (www.gmu.edu). Part 8 of 10.

December 16, 2009
Probabilistic Ontology Modeling Using UnBBayes - Part 9 of 10

In this video we discuss how to model probabilistic ontologies using PR-OWL/MEBN in UnBBayes. This session was a video conference between PhD students from the Institute of Business Administration (www.iba.edu.pk) and Rommel Carvalho from George Mason University (www.gmu.edu). Part 9 of 10.

December 16, 2009
Probabilistic Ontology Modeling Using UnBBayes - Part 10 of 10

In this video we discuss how to model probabilistic ontologies using PR-OWL/MEBN in UnBBayes. This session was a video conference between PhD students from the Institute of Business Administration (www.iba.edu.pk) and Rommel Carvalho from George Mason University (www.gmu.edu). Part 10 of 10.

December 05, 2009
UnBBayes Performance Evaluation for Multi-Sensor Classification Systems Tutorial

In this video we are going to show how to do a performance evaluation for multi-sensor classification systems in UnBBayes. It has been a while we do not post new videos, but hopefully this third one is just one more of many tutorials we will have available to support the demand for documentation on how to use UnBBayes. We hope this will help UnBBayes' user community to grow even more.

October 26, 2009
Probabilistic Ontology and Knowledge Fusion for Procurement Fraud Detection in Brazil

Presentation given by Rommel Carvalho at the 5th Uncertainty Reasoning for the Semantic Web Workshop at the 8th International Semantic Web Conference in 2009.

October 26, 2009
Probabilistic Ontology and Knowledge Fusion for Procurement Fraud Detection in Brazil - Part 1 of 4

Presentation given by Rommel Carvalho at the 5th Uncertainty Reasoning for the Semantic Web Workshop at the 8th International Semantic Web Conference in 2009. Part 1 of 4.

October 26, 2009
Probabilistic Ontology and Knowledge Fusion for Procurement Fraud Detection in Brazil - Part 2 of 4

Presentation given by Rommel Carvalho at the 5th Uncertainty Reasoning for the Semantic Web Workshop at the 8th International Semantic Web Conference in 2009. Part 2 of 4.

October 26, 2009
Probabilistic Ontology and Knowledge Fusion for Procurement Fraud Detection in Brazil - Part 3 of 4

Presentation given by Rommel Carvalho at the 5th Uncertainty Reasoning for the Semantic Web Workshop at the 8th International Semantic Web Conference in 2009. Part 3 of 4.

October 26, 2009
Probabilistic Ontology and Knowledge Fusion for Procurement Fraud Detection in Brazil - Part 4 of 4

Presentation given by Rommel Carvalho at the 5th Uncertainty Reasoning for the Semantic Web Workshop at the 8th International Semantic Web Conference in 2009. Part 4 of 4.

August 28, 2009
UnBBayes Overview Tutorial

In this video we are going to show the basic function we have in UnBBayes. This is the first of many tutorials we have been creating to support the demand for documentation on how to use UnBBayes. We hope this will help UnBBayes' user community to grow even more.

August 28, 2009
UnBBayes BN Tutorial

In this video we are going to show how to create and compile a Bayesian Network (BN) in UnBBayes. This is our second of many video tutorials we have been creating to support the demand for documentation on how to use UnBBayes. We hope this will help UnBBayes' user community to grow even more.

contact: rommel.carvalho@gmail.com - George Mason University (GMU)