• Complex systems research: Urban Complexity, Computational and Statistical Physics, Agent-Based Modeling and Simulations, Predictive Analytics, and Complex Network analysis, Data science and visualization, Research problem scopingl, Research and project supervision, Workshop organization

Research Interests

  • Complex Systems Modeling and Optimization, Data Science, Computational Social Science, Urban Complexity Research, Econophysics
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Erika Fille T. Legara, PhD

Associate Professor
Aboitiz Chair in Data Science
Academic Program Director, Master of Science in Data Science
Deputy Managing Director, ACCeSs@AIM

Academic Background

  • Doctor of Philosophy in Physics, University of the Philippines
  • Master of Science in Physics, University of the Philippines
  • Bachelor of Science in Physics, University of the Philippines

Professional and Academic Experience

  • Scientist III
    Institute of High Performance Computing 
    Science and Engineering Research Council (SERC), A*STAR
  • Scientist II 
    Institute of High Performance Computing, SERC, A*STAR
  • Scientist I
    Institute of High Performance Computing, SERC, A*STAR
  • Research Fellow 
    Singapore Immunology Network, BMSI, A*STAR
  • Assistant Professor 
    National Institute of Physics, University of the Philippines Diliman
  • College Instructor
    National Institute of Physics, University of the Philippines Diliman

Affiliations, Awards, and Honors

  • 2016 UN Big IDEAS Competition for sustainable cities and urban
    development organized by the UN (Country Prize, team)
  • 2013 IEEE SCALE Challenge. First Prize Winner (team)
  • Edgardo Gomez Awardee for Excellence in Dissertation Research, U.P Diliman (UPD) College of Science
  • Most Outstanding PhD Graduate, UPD College of Science
  • PhD Physics Most Outstanding Student, National Institute of Physics
  • Delegate to the 3rd HOPE Meeting in Tokyo, Japan for the Promotion of Science in Asia
  • Santa Fe Institute - Complex Systems Summer School Scholar
  • 2nd Runner-Up, Scientific Poster Exhibition, 76th Annual Meeting of the National Research Council of the Philippines
  • 1st Runner-Up, Scientific Poster Exhibition, 75th Annual Meeting of the National Research Council of the Philippines
  • DOST PCASTRD Scholarship 
    Cum Laude, B.S. in Physics


  • EF Legara and C Monterola, "Inferring Passenger Types from Commuter Eigentravel Matrices," Transportmetrica B: Transport Dynamics. 
    DOI: 10.1080/21680566.2017.1291377


  • N Hu, EF Legara, GG Hung, KK Lee, and C Monterola, "Impacts of land use and amenities on public transport use, urban planning and design," Land Use Policy 57 pp. 356–367, 2016. 
  • C Monterola, EF Legara, P Di, KK Lee, GG Hung, "Non-invasive procedure to probe the route choices of commuters in rail transit systems Procedia Computer Science 80, 2016, Pages 2387–2391. Proceedings of International Conference on Computational Science, 2016.
  • H-Y Xu, S-H Kuo, G Li, EF Legara, D Zhao, and C Monterola, "Generalized Cross Entropy Method for Estimating Joint Distribution from Incomplete Information," Physica A: Statistical Mechanics and its Applications 453, pp. 162-172, 2016.
  • C David, J Ong, and EF Legara, "Tweeting Supertyphoon Haiyan: Evolving functions of Twitter during and after a disaster event," PLOS ONE 11(3): e0150190, 2016.


  • C David and EF Legara, "How Voters Combine Candidates on the Ballot: the Case of the Philippine Senatorial Elections," Int. J. of Public Opinion Research, 2015. 
  • EF Legara, KK Lee, GG Hung, and C Monteorla, "Mechanism-based model of a mass rapid transit system: A perspective,"  Int. J. Mod. Phys. Conf. Ser. 36, 1560011, 2015.
  • N Othman, EF Legara, V Selvam, and C Monterola, "A Data-Driven Agent-Based Model of Congestion and Scaling Dynamics of Rapid Transit Systems," J of Comp. Sci. 10, pp. 338-350, 2015. 


  • C Abundo, C Monterola, EF Legara, Criticality of forcing directions on the fragmentation and resilience of grid networks, Nature Scientific Reports 4, No. 6195, 2014.
  • JF Valenzuela, C Monterola, EF Legara, X Fu, and SM Goh, "On Centripetal Flows of Entities in Scale--Free Networks with Nodes of Finite Capability," Complexity, 2014. 
  • C David, EF Legara, JM Atun, C Monterola, "News Frames of the Population Issue in the Philippines," International Journal of Communication 8, pp. 1247-1267, 2014. 
  • NB Othman, EF Legara, V Selvam, and C Monterola, "Simulating Congestion Dynamics of Train Rapid Transit using Smart Card Data," Procedia Computer Science 29, pp. 1610–1620, 2014.
  • JF Valenzuela, EF Legara, X Fu, RSM Goh, R de Souza, and C Monterola, "A network perspective on the calamity–induced inaccessibility of communities and the robustness of centralized, landbound relief efforts," International Journal of Modern Physics C 25, 1450047, 2014.
  • EF Legara, C Monterola, KK Lee, GG Hung, "Critical capacity, travel time delays and travel time distribution of rapid mass transit systems," Physica A 406, pp. 100-106, 2014. 


  • EF Legara, C Monterola, and C David, "Complex Network Tools in Building Expert Systems that Perform Framing Analysis," Expert Systems With Applications 40, Issue 11, pp. 4600–4608, 2013.


  • C David, EF Legara, JM Atun, and C Monterola, "Finding Frames: Comparing Two Methods of Frame Analysis," Communication Methods and Measures 5, Issue 4,  pp. 329-351, 2011.
  • A Longjas, EF Legara, and C Monterola, "Power law mapping in human area perception", Int J of Mod Phys C 22, Issue 5, pp. 495-503, 2011
  • EF Legara, C Monterola, and C Abundo, "Ranking of predictor variables based on effect size criterion provides an accurate means of automatically classifying opinion column articles", Physica A 390, Issue 1, pp. 110-119, 2011. 


  • EF Legara, C Monterola, C David, and JM Atun, "News Framing of Population and Family Planning Issues via Syntactic Network Analysis", Intl J of Mod Phys C 21, Issue: 1, pp. 51-65, 2010. 
  • I Crisologo, R Batac, A Longjas, EF Legara and C Monterola, "Visual and auditory cues significantly reduce human's intrinsic biases when tasked to generate a random number sequence", Intl J of Mod Phys C 21, Issue: 5, pp. 567-581, 2010.
  • EF Legara, A Longjas, R Batac, "Competition in a social structure," Intl J of Mod Phys C 20 (1), pp. 1-7, 2009. 
  • EF Legara, C Monterola, DE Juanico, M Litong-Palima, C. Saloma, "Earning potential in multilevel marketing enterprises," Physica A 387, pp. 4889-4895, 2008.

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