Ciencias Exactas y Ciencias de la Salud
Permanent URI for this collectionhttps://hdl.handle.net/11285/551039
Pertenecen a esta colección Tesis y Trabajos de grado de las Maestrías correspondientes a las Escuelas de Ingeniería y Ciencias así como a Medicina y Ciencias de la Salud.
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- Road surface monitoring system through machine learning classification ensemble models(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2022-12) Arce Sáenz, Luis Alejandro; Bustamante Bello, Martin Rogelio; puelquio, emipsanchez; Villagra Serrano, Jorge; Galluzzi Aguilera, Renato; Ramírez Mendoza, Ricardo Ambrocio; School of Engineering and Sciences; Campus Ciudad de México; Izquierdo Reyes, JavierThe development of megacities is currently the scene of many problems; an important one to consider is the quality and efficiency of their mobility. An essential factor impacting this is the quality of their road networks, which can affect the durability and safety of ground transportation systems. Mexico City is a great example of such deficiencies. Therefore smart mobility strategies and planning in terms of logistics have been proposed, but few technological integrations have been implemented. In this work, a platform capable of monitoring surface defects in road pavement using Inertial Measurement Units and Machine Learning classification models was designed and developed. This was achieved by recording accelerometer and gyroscope measurements on a test vehicle's damped and undamped mass while driving on Mexico City streets. The measurements were labeled to identify and classify general and specific elements of road irregularities: smooth and uneven road segments, potholes, manholes, speed bumps, and patches. It is described as a methodology for preprocessing the data through time series analysis and feature extraction in the time and frequency domain. Four ensemble models were trained using the best classification models out of eight candidates; an exhaustive grid search methodology was used to select the best classification models per category and optimize the system's performance. Finally, the algorithms and models were loaded into a cloud instance to process incoming raw data; the resultant predictions were stored in a cloud database to be visualized on a web platform.
- Smart Water Grid: data analysis and modeling for a water distribution branch in Mexico City.(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2022) Barrientos Torres, David; Bustamante Bello, Martin Rogelio; puemcuervo; Izquierdo Reyes, Javier; Muñoz Díaz, Enrique; Escuela de Ingeniería y Ciencias; Campus Ciudad de MéxicoWater scarcity in cities is one of the main problems in the world and water security is one of the objectives of the United Nations for 2031. A methodology for anomalies detection is proposed using data analysis, ARIMA models and transfer function models. Real data from flow sensors of several tanks of a branch of the water distribution system of Mexico City, were used for the implementation and validation of the methodology. The resulting models and alerts could improve efficiency in water distribution service by the early detection of wrong measurements and possible leakages.