About Sony’s Research /DissertationWork Presented in Singapore www.ijiet.org

The Effectiveness of Using a Modified “Beat Frequent
Pick” Algorithm in the First International RoShamBo
Tournament by
Sony E. Valdez, Generino P. Siddayao,
and Proceso L. Fernandez

Abstract—In this study, a bot is developed to compete in the
first International RoShamBo Tournament test suite. The basic
“Beat Frequent Pick (BFP)” algorithm was taken from the
supplied test suite and was improved by adding a random
choice tailored fit against the opponent’s distribution of picks. A
training program was also developed that finds the best
performing bot variant by changing the bot’s behavior in terms
of the timing of the recomputation of the pick distribution.
Simulation results demonstrate the significantly improved
performance of the proposed variant over the original BFP.
This indicates the potential of using the core technique (of the
proposed variant) as an Artificial Intelligence bot to similarly
applicable computer games.
Faura Hall -ADMU
consultation for the dissertation of Sony

1. Sony E. Valdez was born in Agoo, La Union, Philippines on
March 15,1984.He received his B.S.
degree in computer science from Agoo Computer
College, La Union, Philippines in 2004, and his M.S.
degree in information technology from the University
of the Cordilleras in 2010. He is currently studying for
his doctorate in information technology at the
University of the Cordilleras in the Philippines. He
takes interest in the field of artificial intelligence, video games, pokémon and
He has worked in the programming industry for over 11 years and he has
been teaching masters and college IT students for the past 3 years. His
current research involves developing an artificial intelligence to play in
competitive games such as Rock-Paper-Scissors. He is looking to extend the
AI research to include boxing games, Pokémans and Street Fighting.
Prof. Valdez is currently the president of Python.PH, Inc, a non-profit
organization with the goal of spreading the programming language Python to
the country. He is a member of the International Game Developer’s
Association (Manila Chapter) since 2009.
International Journal of Information and Education Technology, Vol. 5, No. 10, October 2015

2. Generino P. Siddayao was born in Tuguegarao City,
Philippines, on April 21, 1980. He received his B.S.
and M.S. degrees in information technology from Saint
Paul University Philippines (SPUP), Tuguegarao City,
Philippines in 2001 and 2004, respectively; He takes
interest in systems analysis and programming for
various enterprise applications.
He has worked in the academe for over 12 years. He
is currently an assistant professor and a university dean for eight campuses
of Cagayan State University at Cagayan, Philippines. Current his research
interests include artificial intelligence applications in geographical
information systems for risk assessment and resource management.
Prof. Siddayao is a member of Philippine Society of Information
Technology Educators (PSITE) and currently the President of Council of
Deans in Information Technology Educators (CDITE) in Region 02,

3. Proceso L. Fernandez was born in Quezon City,
Philippines, on June 19, 1972. He received the B.S.,
M.S. and Ph.D. degrees in computer science from the
Ateneo de Manila University, Quezon City,
Philippines, in 1994, 2001 and 2009, respectively. He
is currently an associate professor at the same
university. He has been a visiting researcher at the Nara
Institute of Science and Technology, Nara, Japan, since
2011. He has also been a visiting professor at the Ateneo de Davao
University, Davao, Philippines and at the University of the Cordilleras,
Baguio, Philippines. He is currently a member of the Computing Society of
the Philippines.


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