PCSC2011

Proceedings of the 
11th Philippine Computing Science Congress

ISSN 1908-1146

March 4-5, 2011
Ateneo de Naga University

Editors:

Henry Adorna
Chair, Program Committee
PCSC 2011


Allan Sioson
co-Chair, Program Committee
PCSC 2011


Published by:

Computing Society of the Philippines,
March 2011
Website: http://www.csp.org.ph


Copyright © 2011. Computing Society of the Philippines.

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Table of Contents

(All papers are reviewed by at least 2 experts/professionals from the   members of the Program Committee and guest reviewers from the academe and the industry)

Program of Activities



Keynote : 

Building an Information Platform for Natural Products Research 

Dr. Eduardo Mendoza 
Ludwig Maximilian University, Munich, Germany 




1



Plenary Talk : 

Discourse and Learning in the Digital Age 

Dr. Art Graesser 
University of Memphis, USA 



2


Plenary Talk : 

Using Educational Data Mining to Detect the Moment of Student Learning 

Dr. Ryan Baker 
Worcester Polytechnic Institute, USA 



3



Plenary Talk : 

Making educational software more “game like” 

Dr. Joseph Beck 
Worcester Polytechnic Institute, USA



4



Plenary Talk : 

Computing on Smart Antennas: Making RFID Systems More 
Reliable 

Dr. Joel Marciano 
University of the Philippines Diliman, Quezon City



5



Plenary Talk : 

Jeju Island, Test-bed of Smart Grid in Korea 

Dr. Yung-Cheol Byun 
Jeju National University, Korea



6



Plenary Talk : 

Interfaces for a Structured 3D Self-Organizing Map 

Dr. Arnie Azcarraga 
De La Salle University, Taft, Manila



7



Plenary Talk : 

Multi-Agent Mesoscopic Pedestrian Simulation 

Kardi Teknomo, PhD 
Ateneo de Manila University 
Quezon City



8


Plenary Talk : 

Bridging the Sensory and Semantic Gaps in Image Analysis 

Vladimir Y. Mariano, PhD 
University of the Philippines Los Banos 
Los Banos Laguna



9



Invited Talk : 

SysTest Labs Certification: What Went Wrong? 

Pablo R. Manalastas, Jr., PhD 
Ateneo de Manila University 
Quezon City 



10



Invited Talk : 

Steganography: Past Techniques and Present Algorithms 

Jaderick Pabico 
University of the Philippines Los Banos 
Los Banos, Laguna



11



Invited Talk : 

Improving Human-Machine Interaction via Social Signal Processing and Empathy Provision 

Merlin Teodosia Suarez, PhD 
De La Salle University, Taft Ave., Manila



12



Invited Talk : 

Some Results on Fractal Compression 

Allan A. Sioson, PhD 
Ateneo de Naga University 
Naga City, Bicol



13



Invited Talk : 

Research Opportunities in Digital Humanities 

Dave E. Marcial 
Silliman University 
Dumaguete City



14



Invited Talk : 

Rommel Feria 
University of the Philippines Diliman 
Quezon City



15



CONTRIBUTED PAPERS

PCSC 2011

[All papers are reviewed by at least two experts from the academe and some people from the industry]





3D Modeling From Scanned Foot Images Using Depth-from-Shading 

Erika Thea H. Ajes, Maria Art Antonette D. Clariño, Vladimir Y. Mariano 
Institute of Computer Science, University of the Philippines Los Baños 
College, Laguna, Philippines 4031 


pdf


1


Classifying emotions using EEG signals 

Roman Aquino, Joshua Rafael Battad, Charlene Frances Ngo, 
Gemilene Uy, Rhia Trogo 
De La Salle University - Manila 2401, Taft Avenue 1004, Manila Philippines 


pdf



7


Predicting Student Affect Based on Brainwaves and Mouse Behavior 

Azcarraga, Judith J.; Ibañez, John Francis, Jr., I.; Lim, Ianne Robert C.; 
Lumanas, Nestor, Jr., B. 
Center for Empathic Human-Computer Interaction (CEHCI) 
College of Computer Studies, De La Salle University 
2401 Taft Avenue, Manila, Philippines 1004 


pdf


12


Automating Mmode Echocardiographic Measurements for Enhanced Image Analysis 

Lynzle T. Baldelomar, Lester A. Nacu, Maria Charlene F. Reyes, 
Tristan M. Basa, Prospero C. Naval Jr. 
Computer Vision & Machine Intelligence Group 
Department of Computer Science, College of Engineering 
University of the Philippines Diliman 
Nelson S. Abelardo, MD 
Section of Cardiology, Philippine General Hospital 
University of the Philippines Manila 


pdf


18



Autonomous Road Navigation using Monocular Camera and GPS on an All-Terrain Robot Vehicle (ATRV) Mini Platform 

Prado Bognot, Mary Grace Santos, Ramlaine Jean Cabal, 
Percival Magpantay, Marnelli Melgarejo, Menandro Roxas 
Mobile Robotics Laboratory, EEE Insitute 
University of the Philippines Diliman 


pdf


23


System of Automata Recognizing Languages 

Kelvin Cui Buno, Henry N. Adorna 
Department of Computer Science (Algorithms and Complexity), UP Diliman 
Quezon City 1101 


pdf


27



Spiking Neural P system without delay simulator implementation using GPGPUs 

Francis Cabarle, Henry Adorna 
Algorithms & Complexity Lab 
Department of Computer Science, University of the Philippines Diliman 
Miguel Martínez-del-Amor 
Research Group on Natural Computing 
University of Seville, Spain 


pdf


35



Classical Music Time Period Classification Using Machine Learning Algorithms 

Arturo P. Caronongan III, Kenston C. Choi 
College of Computer Studies, De La Salle University - Manila 
2401 Taft Avenue 
Manila, Philippines 


pdf


44



Developing a Statistical Module for the Open Medical Record System (OpenMRS) to Aid in Pediatric Epidemiology 

Lancelot Eric A. Chen, Patrick Ian E. Cura, Andrei D. Coronel 
Ateneo de Manila University, Philippines 


pdf


49



Multi-Touch Haptic Gesture Recognition from Examples 

Nellie Margaret S. Chua, Demi Rose P. Tinay, Danielle Erika Y. Ureta, 
Angela Faye C. Chua, Solomon L. See 
College of Computer Studies, De La Salle University 
2401 Taft Avenue, Manila, Philippines 


pdf


60



Rice Leaf Vein Identification and Vein Density Measurement using Line-Seeker Method and Thresholding 

Maria Art Antonette D. Clariño and Vladimir Y. Mariano 
Institute of Computer Science, University of the Philippines Los Baños 
College, Laguna, Philippines 4031 


pdf


66



Determining the Precursors of Boredom 

Michelle Marie C. Dagami, Thea Faye G. Guia, Bao Guo, 
William Bernard S. Leonor, Mark Berlon Pating, Ma. Mercedes T. Rodrigo 
Department of Information Systems and Computer Science 
Ateneo de Manila University, 
Loyola Heights, Quezon City, Philippines 


pdf


72



A Secure Framework for Shared Online Banking Accounts 

Joseph Benjamin Del Mundo. Edgardo Felizmenio Jr., 
John Andrew Ponferrada, Philip Christian Zuniga, Susan Festin 
Computer Security Group, Department of Computer Science 
University of the Philippines, Diliman 


pdf


77



Authorship Attribution Using Writer’s Rhythm Based On Lexical Stress 

Alvin Francis P. Dumalus Proceso L. Fernandez 
Ateneo de Manila University, Quezon City, Philippines


pdf


82



Using random projection as key input representation scheme for k-means clustering 

Dy, Jeric Bryle, Azcarraga, Arnulfo 
College of Computer Studies, De La Salle University 
2401 Taft Avenue, Manila, 


pdf


89



Automated Area Measurement of Rice Plant Canopy and Pot Number Recognition Using Image Analysis 

Lean D. Galan, Vladimir Y. Mariano, Maverick C. Crisostomo 
Institute of Computer Science, University of the Philippines-Los Baños 
Amelia Henry 
Crop and Environmental Science Division, International Rice Research Institute 
Los Baños, Laguna 


pdf


95



Affect Recognition in Spontaneous Filipino Laughter Using Audio Features 

Christopher Galvan, David Manangan, Michael Sanchez, Jason Wong, 
Jocelynn Cu 
Center for Empathic Human-Computer Interactions 
De La Salle University 
2401 Taft Avenue, 1004 Manila, Philippines 


pdf


102



Verifying Privacy-Type Properties of an Electronic Voting Protocol that uses Identity Based Cryptography 

Audrey C. Garais, Gabrielle Ira M. Tan, Danny F. Wuysang, 
Henry N. Adorna 
Algorithms and Complexity Laboratory, Department of Computer Science 
College of Engineering, University of the Philippines - Diliman 


pdf


107



Developing an Intelligent Tutor for Debugging 

Janssen Marwin L. Go, Maria Clarisse T. Ligunas , 
Ma. Mercedes T. Rodrigo 
Department of Information Systems and Computer Science 
Ateneo de Manila University, 
Loyola Heights, Quezon City, Philippines 


pdf


119



Identifying Phases of a Multistage Attack via Clustering 

Gomez, Miguel Alberto N. 
Computer Technology Department, 
College of Computer Studies, De La Salle University 
2401 Taft Avenue, Manila, Philippines 


pdf


123



A Matrix Representation for Computations on EC P Systems with Energy 

Richelle Ann B. Juayong, Henry N. Adorna 
Algorithms and Complexity Laboratory, University of the Philippines Diliman 
Quezon City, Philippines 


pdf


133





Automatic Laughter Segmentation in Meetings 

Jasper Charles Lee, Miguel Cristobal Miranda, Jocelynn Cu, 
Merlin Teodosia Suarez 
Center for Empathic Human-Computer Interactions 
De La Salle University 2401 Taft Ave., Manila 


pdf


140



A Web-based User Interface and Monitoring System for an ATRV-based Mobile Robot Platform 

Percival Magpantay, Marnelli R. Melgarejo, Ramlaine Jean T. Cabal, 
Prado Arturo N. Bognot, Kevin Timothy P. Migriño, Menandro Roxas, 
Mary Grace Santos 
Mobile Robotics Laboratory, EEE Institute 
University of the Philippines, Diliman, Quezon City, Philippines 


pdf


146



A ReductionBuildup Algorithm(RBA) Extension for Support Set Construction of k tagged Data Sets 

Jasmine A. Malinao, Richelle Ann B. Juayong, Henry N. Adorna 
Department of Computer Science (Algorithms and Complexity), 
Velasquez Ave., University of the Philippines, Diliman, Quezon City 1101 


pdf


151



Design and Implementation of Academic Networking in an Integrated Personal Learning Environment and Electronic Portfolio Assessment Management System 

Kevin Chris Marcelo, Daniel Lachica Jr. Jose Luis Roberto Asuncion, 
Daniela Marie Delgado, Michelle Lee Moscatel, Ma. Rowena Solamo, 
Rommel Feria 
Web Science Group, Department of Computer Science, 
College of Engineering, University of the Philippines, Diliman, Quezon City 


pdf


156



Modified Total Variation Models in Image Denoising 

Marrick Neri 
University of the Philippines-Diliman 


pdf


163



Automatic Generation of Childrenʼs Stories 

Ethel Ong, Karen Ang, Sherie Yu 
Center for Language Technologies, De La Salle University 
Manila, Philippines 


pdf


168



Data Signature 2Dimensional Representations for Traffic Data Analysis and Prediction 

Erlo Robert F. Oquendo, Jhoirene B. Clemente, John Boaz T. Lee, 
Rona May U. Tadlas, Jasmine A. Malinao, Henry N. Adorna 
Department of Computer Science (Algorithms and Complexity), 
Velasquez Ave., University of the Philippines, Diliman, Quezon City 1101 


pdf


175



Automated Rice Leaf Disease Detection Using Shape Image Analysis 

Reinald Adrian DL. Pugoy, Vladimir Y. Mariano 
Institute of Computer Science University of the Philippines Los Baños 
College, Laguna, Philippines 4031 


pdf


181



RAINPOUR: An Automated Interpreter of Variable Precipitation Forecast Images 

Samantha May Racho, Paul Rossener Regonia, Tristan Basa, 
Prospero Naval Jr. 
Computer Vision & Machine Intelligence Group, Department of Computer Science 
College of Engineering, University of the PhilippinesDiliman 
Sheila Schneider 
Flood Forecasting Department 
PAGASAQuezon 
City 


pdf


186



Local Area Redirection Policies for a Lightweight Distributed Desktop Web-Grid 

Marie Yvette B. de Robles and Jaderick P. Pabico 
Institute of Computer Science, College of Arts and Sciences 
University of the Philippines Los Baños 
College 4031, Laguna, Philippines 


pdf


191



Social Network-Aware P2P File Distribution 

Linda II Sarmiento, Cedric Angelo Festin 
Department of Computer Science 
College of Engineering 
University of the Philippines, Diliman 
Roel Ocampo 
EEE Institute 
College of Engineering 
University of the Philippines, Diliman 


pdf


206



Challenges in Developing an Intelligent Medical Diagnostics Mobile Tool for Technology Adoption in Low-Income Countries 

Michael B. Syson, Ma. Regina E. Estuar, Ph.D. 
Ateneo de Manila University 
Loyola Heights, Quezon City, 
1108, Philippines 


pdf


219



Weights Restriction by Multiple Decision Makers in Data Envelopment Analysis using Fuzzy Programming 

Cherryl O. Talaue, Natalie Anette N. Diesta, Cesar G. Tapia 
Institute of Mathematics, UP Diliman 
C.P. Garcial Ave., Diliman 
Quezon City 1101 


pdf


227



Automated Temperature Analysis of Rice Plots Using Infrared Thermal Image Analysis 

Princess T. Valdez, Vladimir Y. Mariano, Maverick C. Crisostomo 
Institute of Computer Science University of the Philippines-Los Baños ptvaldez@gmail.com vladmariano@gmail.com, mvc.cris@gmail.com
Amelia Henry 
Crop and Environmental Science Division International Rice Research Institute 
Los Baños, Laguna 


pdf


236



Symmetry Groups of Tiled Platonic Solids 

Ma. Lailani B. Walo 
Institute of Mathematics, UP Diliman 
C.P. Garcia Ave., Diliman 
Quezon City 1101 
Rosamair Liz Nicol V. Chua 
Grace Christian College 
Grace Village, Sto. Domingo St. 
Quezon City 


pdf


240



Verifying Secrecy and Authentication of Electronic Ballot Transmission Protocols in the Applied Pi-Calculus 

Danny F. Wuysang, Henry N. Adorna 
Algorithms and Complexity Laboratory, Department of Computer Science 
University of the Philippines Diliman 
Quezon City, Philippines 


pdf


244


Generating Simulated cDNA Gene Expression Data for Microarray Experiments using Loop Design 

Allan A. Sioson, Glenn G. Fabia 
Computer Science Department, Ateneo de Naga University, 
Ateneo Avenue, 4400 Naga City 


pdf



254