Repositorio del IIMAS
https://www.ru.iimas.unam.mx:443/xmlui
El repositorio digital DSpace captura, almacena, indexa, preserva y distribuye materiales de investigación en formato digital.2024-03-29T07:05:16ZLocalization of sound sources in robotics: A review
http://www.ru.iimas.unam.mx/handle/IIMAS_UNAM/ART18
Localization of sound sources in robotics: A review
Meza, Ivan V.
Sound source localization (SSL) in a robotic platform has been essential in the overall scheme of robot audition. It allows a robot to locate a sound source by sound alone. It has an important impact on other robot audition modules, such as source separation, and it enriches human robot interaction by complementing the robot's perceptual capabilities. The main objective of this review is to thoroughly map the current state of the SSL field for the reader and provide a starting point to SSL in robotics. To this effect, we present: the evolution and historical context of SSL in robotics; an extensive review and classification of SSL techniques and popular tracking methodologies; different facets of SSL as well as its state-of-the-art; evaluation methodologies used for SSL; and a set of challenges and research motivations.
2017-08-05T00:00:00ZFRNA Bacteriophages as Viral Indicators of Faecal Contamination in Mexican Tropical Aquatic Systems
http://www.ru.iimas.unam.mx/handle/IIMAS_UNAM/ART48
FRNA Bacteriophages as Viral Indicators of Faecal Contamination in Mexican Tropical Aquatic Systems
Diaz-Avalos, Carlos; Lopez-Vidal, Yolanda; Castillo-Rojas, Gonzalo; Mazari-Hiriart, Marisa
A particular challenge to water safety in populous intertropical regions is the lack of reliable faecal indicators to detect microbiological contamination of water, while the numerical relationships of specific viral indicators remain largely unexplored. The aim of this study was to investigate the numerical relationships of FRNA-bacteriophage genotypes, adenovirus 41, and human adenoviruses (HADV) in Mexican surface water systems to assess sewage contamination. We studied the presence of HADV, HADV41 and FRNA bacteriophage genotypes in water samples and quantified by qPCR and RT-qPCR. Virus and water quality indicator variances, as analyzed by principal component analysis and partial least squared regression, followed along the major percentiles of water faecal enterococci. FRNA bacteriophages adequately deciphered viral and point source water contamination. The strongest correlation for HADV was with FRNA bacteriophage type II, in water samples higher than the 50th percentiles of faecal enterococci, thus indicating urban pollution. FRNA bacteriophage genotypes I and III virus indicator performances were assisted by their associations with electrical conductivity and faecal enterococci. In combination, our methods are useful for inferring water quality degradation caused by sewage contamination. The methods used have potential for determining source contamination in water and, specifically, the presence of enteric viruses where clean and contaminated water have mixed.
2017-01-23T00:00:00ZSensitivity to Social Contingency in Adults with High-Functioning Autism during Computer-Mediated Embodied Interaction
http://www.ru.iimas.unam.mx/handle/IIMAS_UNAM/ART19
Sensitivity to Social Contingency in Adults with High-Functioning Autism during Computer-Mediated Embodied Interaction
Froese, Tom; Schilbach, Leonhard; Vogeley, Kai; Timmermans, Bert
Sensitivity to Social Contingency in Adults with High-Functioning Autism during Computer-Mediated Embodied Interaction
2018-02-08T00:00:00ZTrajectory Stability in the Traveling Salesman Problem
http://www.ru.iimas.unam.mx/handle/IIMAS_UNAM/ART47
Trajectory Stability in the Traveling Salesman Problem
Cocho, Germinal; Flores, Jorge; Gershenson, Carlos; Iñiguez González, Gerardo; Pineda, Carlos
Two generalizations of the traveling salesman problem in which sites change their position in time are presented. The way the rank of different trajectory lengths changes in time is studied using the rank diversity. We analyze the statistical properties of rank distributions and rank dynamics and give evidence that the shortest and longest trajectories are more predictable and robust to change, that is, more stable.
2018-04-16T00:00:00Z