research
PUBLICATIONS
A Grammar for Detecting Well-handled 2-split, 2-join Workflow nets without Cycles
N. Hernandez, R. Juayong and H. Adorna
To be published in a volume of the Proceedings in Information and Communications Technology series by Springer 2013
Patterns and Outlier Analysis of Traffic Flow using Data Signatures via iDIRBrG Method and Vector Fusion Visualization
J. Malinao, R. Juayong, J. Becerral, K. Cabreros, K. Remaneses, J. Khaw, D. Wuysang, F. Corpuz, N. Hernandez, J. Yap and H. Adorna
Published in IEEE Conference Proceedings of HumanCom 2010
Generating a Set of Strong Spanned Patterns Using SubCP Reduction and the MHA- Product Operation
J. Malinao, R. Juayong, N. Hernandez and H. Adorna
Published in Philippine Journal of Science, Vol. 141 No. 2 pp 127-139, December 2012
(http://philjournalsci.dost.gov.ph/vol141no2/pdf/Strong%20Spanned%20Patterns%20Generation.pdf)
In Electronic Proceedings of PCSC 2010 pp 245-252, March 2010
On the Octagonal Drawings of a Class of 2-4 Plane Graphs with Bends and with Prescribed Face Areas
N. Sy, J. Caro, N. Hernandez and H. Adorna
In Electronic Proceedings of PCSC 2010 pp 308-319, March 2010
The SSP-Trie Algorithm for Efficient Strong Spanned Pattern Set Generation of ACTSF
J. Malinao, N. Hernandez and H. Adorna.
In proceedings of 3rd ERDT Conference pp 162-168, September 2009
On Network Properties of Generalized Hypercubes
N. Hernandez and H. Adorna.
Published in Philippine Computing Journal, Vol. IV No. 1 pp 26-30, March 2009
On Unambiguous Nondeterministic Finite Automata and the Strict Tree Property
H. Adorna, N. Hernandez and R. Lorenzo.
Published in Philippine Computing Journal, Vol. III No. 1 pp 7-12, October 2008
PAPER PRESENTATIONS / CONFERENCES ATTENDED
27-28 September 2012 Workshop on Computation: Theory and Practice 2012 De La Salle University, Manila, Philippines
A Grammar for Detecting Well-handled 2-split, 2-join Workflow nets without Cycles
N. Hernandez(presenter), R. Juayong and H. Adorna.
Proceedings to be published as a volume of the Proceedings in Information and Communications Technology series by Springer
2-8 November 2011 International Workshop on Mathematical Crystallography, University of the Philippines, Diliman, Quezon City, Philippines
16 September 2011 7th ERDT Conference Sustainability through ERDT: Towards a Carbon-Neutral Economy, Manila Hotel, Manila, Philippines
18 February 2011 6th ERDT Conference Addressing the Grand Challenges through Engineering Innovation, Diamond Hotel, Manila, Philippines
20-23 October 2010 8th National Congress on Information Technology Education, La Carmela de Boracay Convention Center, Boracay, Philippines
10 September 2010 5th ERDT Conference Philippine Competitiveness through ERDT, Sofitel Philippine Plaza, CCP Complex, Pasay City, Philippines
11-13 August 2010 3rd International Conference on Human-Centric Computing, Cebu, Philippines
Patterns and Outlier Analysis of Traffic Flow using Data Signatures via iDIRBrG Method and Vector Fusion Visualization
J. Malinao(presenter), R. Juayong, J. Becerral, K. Cabreros, K. Remaneses, J. Khaw, D. Wuysang, F. Corpuz, N. Hernandez, J. Yap and H. Adorna
IEEE Conference Proceedings of HumanCom 2010
5-6 March 2010 10th Philippine Computing Science Congress Ateneo de Davao University, Davao City, Philippines
Generating a Set of Strong Spanned Patterns Using SubCP Reduction and the MHA- Product Operation
J. Malinao(presenter), R. Juayong, N. Hernandez and H. Adorna
Received Paper Citation Award
Electronic Proceedings of PCSC 2010 pp 245-252, March 2010
Currently a candidate paper for publication in Philippine Journal of Science (2nd review)
On the Octagonal Drawings of a Class of 2-4 Plane Graphs with Bends and with Prescribed Face Areas
N. Sy (presenter), J. Caro, N. Hernandez and H. Adorna.
Electronic Proceedings of PCSC 2010 pp 308-319, March 2010
Broadcasting in n-dimensional Star Graphs
C. Alipio(presenter) and A. Tinio. (adviser: N. Hernandez)
Electronic Proceedings of PCSC 2010 pp 39-47, March 2010
11 September 2009 3rd ERDT Conference Post-Graduate Multidisciplinary Approach Solving Philippine Problems, Edsa Shangrila Hotel, Philippines
The SSP-Trie Algorithm for Efficient Strong Spanned Pattern Set Generation of ACTSF
J. Malinao(presenter), N. Hernandez and H. Adorna.
Proceedings of 3rd ERDT Conference pp 162-168, September 2009
2-3 March 2009 9th Philippine Computing Science Congress, Silliman University, Dumaguete City, Philippines
On Network Properties of Generalized Hypercubes
N. Hernandez(presenter) and H. Adorna.
Published in Philippine Computing Journal, Vol. IV No. 1 pp 26-30, March 2009
25-28 February 2009 10th International Conference On Molecular Systems Biology, University of the Philippines, Diliman, Quezon City, Philippines
20 February 2009 2nd ERDT Conference - Synergy in Multidisciplinary R&D Diamond Hotel, Roxas Blvd., Manila, Philippines
On Network Properties of Generalized Hypercubes
N. Hernandez(presenter) and H. Adorna.
12 September 2008 1st ERDT Conference Setting the Backdrop for the ERDT R&D in the Next 10 years Renaissance, Makati City Hotel, Philippines
4-7 August 2008 4th Symposiums on the Mathematical Aspects of Computer Science, University of the Philippines Visayas, Cebu City, Philippines
Precise Colorings of {3,n} Tilings of the Hyperbolic Plane
N. Hernandez(presenter) and R. Felix.
23-24 February 2008 8th Philippine Computing Science Congress, University of the Philippines, Diliman, Quezon City, Philippines
On Unambiguous Nondeterministic Finite Automata and the Strict Tree Property
H. Adorna, N. Hernandez(presenter) and R. Lorenzo.
Published in Philippine Computing Journal, Vol. III No. 1 pp 7-12, October 2008
24-25 May 2003 2003 Annual Convention - Mathematical Society of the Philippines University of the Philippines, Los Banos, Laguna, Philippines
Precise Coloring of the {3,n} Tilings of the Hyperbolic Plane for n=7,8,9,10
N. Hernandez(presenter) and R. Felix.
2-5 December 2002 Conference on Algebra Ateneo de Manila University, Quezon City, Philippines
Colorings Using Right Cosets Applied to Crystallographic Hyperbolic Plane Patterns
N. Hernandez(presenter) and R. Felix.
23-27 February 1998 International Conference on Inverse Problems and Applications, University of the Philippines, Diliman, Quezon City, Philippines
26 November 1997 Workshops on the Psychology of Mathematical Learning & Problem Solving, University of the Philippines, Diliman, Philippines
JOURNAL AND CONFERENCE RELATED WORK
Local Conference Paper Reviewer/ Program Committee Member
Symposiums on the Mathematical Aspects of Computer Science 2012
International Conference Paper Reviewer
Proceedings of the Workshop on Computation: Theory and Practice (WCTP) 2012
International Conference Paper Reviewer
The 2012 IEEE Region 10 Conference TENCON 2012
Local Journal Paper Reviewer
Philippine Computing Journal, Computing Society of the Philippines 2012
Local Conference Paper Reviewer
Philippine Computing Science Congress 2012
Local Conference Paper Reviewer
Philippine Computing Science Congress 2011
Local Conference Paper Reviewer
Philippine Computing Science Congress 2010
Local Conference Paper Reviewer
Symposiums on the Mathematical Aspects of Computer Science 2010
RESEARCH PROJECT
ERDT Project: Information Visualization via Data Signature
Project Staff Level II (15 July 2009 – 14 October 2009)
Oversee the project on behalf of the Project leader while he was on a post-doctoral grant in Spain (15 September 2009 – 15 December 2009)
SPECIAL PROJECT (CS 198/CS 199) ADVISING
AY 2012-2013
Topic: On Quantum Circuit Diagram Tool
Students: Benjamin Cueto Jr and Jon Percival Sadornas
with graduate student supervisor: Jeffrey Aborot
Topic: Projection Algorithm for Motif Finding in GPU using Parallel Hashing
Student: John Erol Evangelista
with graduate student supervisor: Jhoirene Clemente
Research paper presented in the 6th Symposium on the Mathematical Aspects of Computer Science, 7 December 2012 and
candidate paper for publication in Philippine Computing Journal, Vol. VII No. 2, March 2013
Topic: Improved Algorithms for Approximate Gene Cluster Discovery Problem
Students: Emery dela Cruz and Nerissa Monica Tacata
with graduate student supervisor: Jhoirene Clemente
AY 2011-2012
Topic: Implementation of the Coloring of Lattices Based on Subgroup Orbits
Students: Dana Joy Bausa and Kohlen Angelo Say
in collaboration with Dr. Lailani Walo of the Institute of Mathematics
Topic: Implementation of an Algorithm to Generate a Precise Coloring of a {3,n} Tessellation of the Hyperbolic Plane
Student: Payton Robin Yao
AY 2010-2011
Topic: Pursuit and Evasion with Two Robbers on a Graph
Students: Earl Vincent Demition and Kristine Ray Alcantara
AY 2009-2010
Topic: Broadcasting in n-dimensional Star Graphs
Students: Camille Bianca Alipio and Anna Patricia Tinio
Research paper presented in the 10th Philippine Computing Science Congress and appeared in the electronic Proceedings of PCSC 2010 pp 39-47, March 2010 (https://docs.google.com/a/dcs.upd.edu.ph/viewer?a=v&pid=sites&srcid=ZGNzLnVwZC5lZHUucGh8Y3NwLXByb2NlZWRpbmdzfGd4OjI3ZmZhMDA3ZGNlNjRjYjg)