Porfirio Toledo

Porfirio Toledo
Universidad Veracruzana | UV · Facultad de Matemáticas

Ph.D.

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17
Publications
2,235
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17
Citations

Publications

Publications (17)
Article
Full-text available
It has been reported in non-contingent schedules that the variety of patterns of behavior is affected by the temporal variation of water deliveries. While temporal variation is accomplished by delivering water at fixed or variable times, spatial variation is usually accomplished by varying the number of dispensers and distance among them. Such crit...
Article
Full-text available
This paper aims to show that generating and evaluating summaries are two linked but different tasks even when the same Divergence of the Probability Distribution (DPD) is used in both. This result allows the use of DPD functions for evaluating summaries automatically without references and also for generating summaries without falling into inconsis...
Article
This work presents a study about a special class of infeasible solutions called here as pseudo-feasible solutions in bilevel optimization. This work is focused on determining how such solutions can affect the performance of an evolutionary algorithm. After its formal definition, and based on theoretical results, two conditions to detect and deal wi...
Article
Full-text available
Understanding behavioral systems as emergent systems comprising the environment and organism subsystems, include spatial dynamics as a primary dimension in natural settings. Nevertheless, under the standard approaches, the experimental analysis of behavior is based on the single response paradigm and the temporal distribution of discrete responses....
Preprint
Full-text available
The continuous analysis of spatial behavioral-dynamics under stimuli-schedules has been a scarcely studied field in experimental psychology. A recent study conducted in our laboratory suggest that the features embedded in the spatial dynamics of behavior are affected by stimulus-schedules, at least, as much as features embedded in discrete response...
Preprint
Full-text available
In natural settings, the spatial dimension of behavior, such as approach and withdrawal patterns to relevant stimuli (e.g., food, water or predators) are crucial. Nevertheless, the spatial-behavioral dynamics has been a scarcely studied field in Experimental Psychology. Recent studies using computer vision for sensing spatial behavior have shown, i...
Data
We present the mathematical description of the following measures and plots: smoothed distance; recurrence plots; entropy and divergence. Supplementary Material of Ecological location of a water source and spatial dynamics of behavior under temporally scheduled water deliveries in a modified open-field system: An integrative approach.
Chapter
This paper proposes a methodology to approximate an electroencephalographic (EEG) signal. To make it, the signal is decomposed using the Fast Fourier Transform (FFT). The methodology consist of an algorithm that select representatives of each of the brainwaves frequency bands classification, ensuring the selection of at least one representative of...
Article
Full-text available
Currently, there are different programs that allow recording locomotion data through video-tracking systems. Nonetheless, open-access applications for the analysis of data obtained with those programs are scarce or limited. We describe a software designed for the analysis of tracking data obtained with different organisms in experimental arenas. In...
Patent
Full-text available
Currently, there are different programs that allow recording locomotion data through video-tracking systems. Nonetheless, open-access applications for the analysis of data obtained with those programs are scarce or limited. We describe a software designed for the analysis of tracking data obtained with different organisms in experimental arenas, th...
Article
Full-text available
Currently, there are different programs that allow recording locomotion data through video-tracking systems. Nonetheless, open-access applications for the analysis of data obtained with those programs are scarce or limited. We describe a software designed for the analysis of tracking data obtained with different organisms in experimental arenas. In...
Conference Paper
Full-text available
Augmenting accuracy and reliability of predictions in the woodboring beetle population dynamics is worthy information to anticipate potential plagues or extinctions, ensure sustainable ecosystems and estimate impact at new environmental scenarios due to climate change. This study focuses in the genus Xyleborus by rearing the beetle X. affinis, a sp...
Article
Full-text available
We study the behavior of solutions of a discrete-time Hamilton-Jacobi equation in a minimax framework of game theory. The solutions of this problem represent the optimal payoff of a zero-sum game of two players, where the number of moves between the players converges to infinity. A real number, called the critical value, plays a central role in thi...
Article
Full-text available
The purpose of this paper is to study the existence of solutions of a Hamilton-Jacobi equation in a minimax discrete-time case and to show different characterizations for a real number called the critical value, which plays a central role in this work. We study the behavior of solutions of this problem using tools of game theory to obtain a “fixed...

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Projects (2)
Project
El proyecto stá basado en ver el problema de la actualización de pesos en una red neuronal como un un problema de control, el cual, a su vez, se puede ver como una ecuación diferencial parcial bien conocida llamada "ecución Hamilton Jacobi Bellman" cuya solución para este caso particular se conoce.