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Our new publication models the diffusion of passengers within the railway network architecture of Metro Manila, Philippines:
J.M.V. Antenorcruz, R.C. Batac, E.M. Posadas, and R. Sarigumba, Passenger diffusion in the Philippines’ greater capital region railway system using Fick’s laws, Journal of Physics: Conference Series 3268, 012014, https://doi.org/10.1088/1742-6596/3268/1/012014 (2026).
Kiona Moria Aguana, a graduate student member of the Complex Systems Group (CSG), presented her research work titled Correlation Road Network Metrics and the Distribution of Amenities: A Case Study of Manila, Philippines during the fourth parallel session of the DLSU Research Congresss (ResCon) 2026 on July 27, 2026.
Dr. Jude Maria V. Antenorcruz, a research faculty of the Complex Systems Group, was awarded the best oral presentation during the parallel sessions of the 2026 16th International Conference on Applied Physics and Mathematics (ICAPM) held on April 10-12, 2025 in Osaka, Japan.
Prof. Masaki Ogura from the Graduate School of Advanced Science and Engineering, Hiroshima University, Japan visited the De La Salle University (DLSU) on March 9, 2026. He gave a talk on the topic From Local Interventions to Scalable System-Level Effects to the faculty and students of the Complex Systems Group (CSG) of the Department of Physics, College of Science, DLSU.
20 December 2025; updated: 17 January 2026
In our newest work, we provided a detailed analysis of the co-authorship network of a core and pioneer community of researchers from five institutions originally recognized as Centers of Excellence (COE) in Physics in the Philippines:
K.M.A. Aguana and R.C. Batac, Emergence of power-law statistics in the co-authorship networks of Philippine physics researchers, Scientometrics, https://doi.org/10.1007/s11192-025-05530-9 (2026).
In our new paper, we replicate the statistics of brain network structure using a sandpile model that introduces Hebbian learning on a hierarchical modular network (HMN).
M.T. Cirunay, R.C. Batac, and G. Ódor, Learning and criticality in a self-organizing model of connectome growth, Scientific Reports 15, 31890 (2025). https://doi.org/10.1038/s41598-025-16377-8
23 July 2025; updated: 29 August 2025
In our new publication, we examine the power-law signatures in the statistics of populations of Philippine cities and municipalities:
D.M.T. Ordoñez and R.C. Batac, Testing the validity of Zipf and Pareto laws: A multi-method approach, Physica A: Statistical Mechanics and Its Applications, 675, 130827, https://doi.org/10.1016/j.physa.2025.130827 (2025).
Dylan Marcus Ordoñez, a member of the Complex Systems Group, presented his research work titled Zipf's law deviations for Philippine cities and municipalities: An analysis using the 2020 Cities and Municipalities Competitiveness Index during the 43rd Physics Conference of the Physics Society of the Philippines (Samahang Pisika ng Pilipinas, SPP) held on June 25-28, 2025 in the University of the Philippines Diliman, Quezon City, Philippines.
Hernandez presents work in ICAPM 2025
Hernandez presents work in ICAPM 2025
21 April 2025
Edward Russel Hernandez, a graduate student researcher from the Complex Systems Group, presented his work, Power-law Distributions of Urban Tree Cover, during the 2025 15th International Conference on Applied Physics and Mathematics (ICAPM) held on April 10-12, 2025 in Tokyo, Japan.
07 August 2024; updated: 21 April 2025
We examine the signatures of particulate matter concentration in our new publication:
S.A. Estavillo, E. Vallar, M.C. Galvez, P.M. Ong, R.C. Batac, A Complexity View of Atmospheric Particulate Matter Concentration, International Journal of Modern Physics C, 36 (05), 1-13, https://doi.org/10.1142/S0129183124502231 (2025).
Jude Maria V. Antenorcruz, a faculty and researcher from the Complex Systems Group, presented his research work during the De La Salle University Research Congress (DLSU ResCon) 2024.
J.M.V. Antenorcruz and R.C. Batac, The Effect of Noise Traders on The Distribution of Returns: Evidence from an Ising-based Model of Financial Markets, presented during the DLSU Research Congress 2024 (21 June 2024).
Our new publication looks at the distribution of tree-covered areas in urban zones:
E.R. Hernandez, P.B. Sy, M. Cirunay, and R.C. Batac, Power-law distributions of urban tree cover. Physica A: Statistical Mechanics and Its Applications, 643, 129779, https://doi.org/10.1016/j.physa.2024.129779 (2024).
In our paper, we probe the effect of reinforcing sandpile grid sites:
P.B. Sy & R.C. Batac, The role of intervention mechanisms on a self-organized system: Dynamics of a sandpile with site reinforcement, Journal of Physics: Complexity, 5, 15012, https://doi.org/10.1088/2632-072X/ad28ff (2024).
The De La Salle University (DLSU) successfully hosted the Philippine Datathon 2023 from 29 September to 1 October 2023 at The Verdure, 4F Henry Sy Sr. building of the DLSU Taft Campus. The Dr. Andrew L. Tan Data Science Institute (ALTDSI), one of the research centers of the DLSU, is part of the organizing committee of the event.
Dr. Rene C. Batac has been appointed as the Executive Director of the Dr. Andrew L. Tan Data Science Institute (ALTDSI) of the De La Salle University (DLSU) — Manila starting September 2023.
In our new paper, we scanned the parameters of an Ising model of markets to recover realistic regimes.
J.M.V. Antenorcruz and R.C. Batac, Efficiency of a self-organizing Ising model of financial markets, International Journal of Modern Physics C, https://doi.org/10.1142/S012918312450013X (2023).
Our new paper studies how the road network of the City of Manila has expanded over the last century. The work quantifies the efficiency of network traversals across peripheral nodes.
M.T. Cirunay and R.C. Batac, Evolution of the periphery of a self-organized road network, Physica A: Statistical Mechanics and its Applications 617, 128629, https://doi.org/10.1016/j.physa.2023.128629 (2023).
In our new publication, we quantify the road network morphologies of representative cities and municipalities from the major conurbations of the Philippines.
M.T. Cirunay and R.C. Batac, Morphological and Fractal Characteristics of City Road Networks from Philippine Metropolitan Regions, Journal of Regional and City Planning 33(3), 386-404, https://doi.org/10.5614/jpwk.2022.33.3.6 (2022).
In our new paper, we characterize the routes to the peripheral locations of the road networks, the most highly inaccessible locations in the urban road network architecture.
R.C. Batac and M.T. Cirunay, Shortest paths along urban road network peripheries, Physica A: Statistical Mechanics and its Applications, 597, 127255, https://doi.org/10.1016/j.physa.2022.127255 (2022).
Our paper modeling cascades in the geographical urban environment is now available online.
Dylan Marcus T. Ordoñez and Rene C. Batac, Cascade events in geographical space, International Journal of Modern Physics C, 33(4), 2250050, https://doi.org/10.1142/S0129183122500504 (2022).
Our research work comparing spatial features formed by road networks of cities with different levels of planning was published in the journal Complex Systems:
M.T. Cirunay and R.C. Batac, Spatial Signatures of Road Network Growth for Different Levels of Global Planning, Complex Systems 30(3), 273-296, https://doi.org/10.25088/ComplexSystems.30.3.273 (2021).
Our new research work got published in the EPL (Europhysics Letters):
R.C. Batac, Clustering regimes in a sandpile with targeted triggering, EPL (Europhysics Letters) 135, 19003, https://doi.org/10.1209/0295-5075/135/19003 (2021).
Michelle T. Cirunay, a Ph.D. Physics student from the De La Salle University (DLSU) Manila and one of the graduate students under the Complex Systems Group of Dr. Rene C. Batac, has been chosen as one of the student participants in the 2021 Complex Networks Winter Workshop (CNWW), organized by the University of Vermont Complex Systems Center and the Sentinel North Program of the Universite Laval.
Our research on the quantitative signatures of spatial organization in cities got accepted for publication. in the journal Physica A: Statistical Mechanics and Its Applications.
C.D. Perlada, A.K. Orden II, M.T. Cirunay, and R.C. Batac, Quantifying the organization of urban elements through the statistical distributions of their spatial spreading metrics, Physica A: Statistical Mechanics and Its Applications, 568, 125717, https://doi.org/10.1016/j.physa.2020.125717 (2021).
Michelle T. Cirunay, a graduate from the Complex Systems Group of Dr. Rene C. Batac, joins this year's virtual edition of the Conference on Complex Systems (CCS), held on 7-11 December 2020.
Our new work on the efficiency of markets just got published:
J.M.V. Antenorcruz, M.C.F. Manzano, and R.C. Batac, Ranking the market efficiency of the Philippine stock exchange industry sectors using the multifractal detrended fluctuation analysis, Journal of Physics: Conference Series 1593, 012018, https://doi.org/10.1088/1742-6596/1593/1/012018 (2020).
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