J. Alberto Conejero

Research

What I work on.

Four connected areas, from operator theory to machine learning for physical, networked and clinical systems.

01 / 04

Anomalous Diffusion in Photonics

Anomalous transport and dispersion, from single-particle trajectories to optical frequency combs.

Core methods

  • single-particle tracking
  • fractional Brownian motion
  • annealed transient time motion
  • continuous-time random walks
  • Lévy walks
  • scaled Brownian motion
  • optical frequency combs

Featured results

  • Quantitative evaluation of methods to analyze motion changes in single-particle experiments

    Nature Communications, 2025

  • AnomalousNet: a hybrid approach with attention U-Nets and change point detection for accurate characterization of anomalous diffusion in video data

    Journal of Physics Photonics, 2025

02 / 04

Artificial Intelligence

Data science and LLMs applied to scientific, industrial, and societal challenges.

Core methods

  • deep learning for time series
  • large language models
  • visual large language models
  • computer vision on trajectories

Featured results

  • Critical misalignments in climate pledges reveal imbalanced sustainable development pathways

    Nature Communications, 2026

  • Potential limitations in COVID-19 machine learning due to data source variability: A case study in the nCov2019 dataset

    Journal of the American Medical Informatics Association, 2021

03 / 04

Graph Theory

Networks as working models of real systems.

Core methods

  • shortest paths and routing
  • centrality measures
  • community detection
  • self-organising vehicle fleets
  • network robustness
  • graph-based clustering

Featured results

  • The electric vehicle traveling salesman problem on digital elevation models for traffic-aware urban logistics

    Algorithms, 2023

  • A user-centered chatbot (Wakamola) to collect linked data in population networks to support studies of overweight and obesity causes: design and pilot study

    JMIR Medical Informatics, 2021

04 / 04

Mathematical Analysis

Linear operators, semigroups, and chaos in linear systems.

Core methods

  • hypercyclic operators
  • C0-semigroups
  • linear chaos
  • diffusion equations
  • fractional dynamics
  • Banach and Fréchet spaces
  • Moore-Gibson-Thompson equation
  • lineability

Featured results

  • Hypercyclic behaviour of operators in a hypercyclic C0-semigroup

    Journal of Functional Analysis, 2007

  • Hypercyclic, topologically mixing and chaotic semigroups

    Studia Mathematica, 2005

  • Chaotic behaviour of the Moore-Gibson-Thompson equation

    Applied Math. & Information Sciences, 2015