A criteria based function for reconstructing low-sampling trajectories as a tool for analytics

Abstract: Mobile applications equipped with Global Positioning Systems have generated a huge quantity of location data with sampling uncertainty that must be handled and analyzed. Those location data can be ordered in time to represent trajectories of moving objects. The data warehouse approach based on spatio-temporal data can help on this task. For this reason, we address the problem of personalized reconstruction of low-sampling trajectories based on criteria over a graph for including criteria of movement as a dimension in a trajectory data warehouse solution to carry out analytical tasks over moving objects and the environment where they moveMaestrí

Un método para estimar la posición y la dirección del líder en un conjunto de objetos móviles

RESUMEN: Patrones de movimiento pueden ser identificados cuando se estudia un grupo de entidades móviles, como un grupo de personas, una bandada de pájaros, un banco de peces, un convoy de vehículos, entre otros. En este artículo, se analiza un patrón, conocido como liderazgo. Informalmente, este patrón se caracteriza por una entidad móvil llamada líder que motiva o representa el comportamiento de un grupo con el fin de alcanzar un objetivo durante un período. Se propone un método formal para estimar la posición y la dirección donde un líder debería estar ubicado y orientado en un punto del tiempo con el fin de liderar un grupo. Estas estimaciones pueden también ser útiles para verificar la consistencia de los datos de un patrón de liderazgo y para estimar la información faltante (posición y dirección) de un líder en un tiempo específico, i.e., un proceso de imputación. Con el fin de mostrar la conveniencia de la propuesta, se implementó y se desarrolló una serie de experimentos mediante Netlogo, un entorno programable de modelado para la simulación de fenómenos naturales y sociales.ABSTRACT: Movement patterns can be identified when studying a group of moving entities such as a group of people, a flock of birds, a school of fish, a convoy of vehicles, among others. In this paper, it is analyzed a pattern, known as leadership. Informally, this pattern is characterized by a moving entity called leader that motivates or represents the behavior of the group in order to reach a goal during a period. A formal method is proposed to estimate the position and the direction where a leader should be located and headed at a timepoint in order to lead a group. These estimations can also be useful to check the consistency of the data about a leadership pattern, and to estimate the missing information (position and direction) of a leader at a specific time, i.e., an imputation process. In order to show the expediency of the proposal, a series of experiments were implemented and conducted using Netlogo, a programmable modeling environment for simulating natural and social phenomena

Technological Development of CNC Machine Tool for Machining Soft Materials

In recent years, the process carried out in the GACIPE research group is related to the development of the base technology of the manufacturing and metalworking industry. The machine tools that are vital for the consolidation and competitiveness of the industry in any country has been approached through two approaches: The design and construction of the new machine. In this aspect, the modeling of the structure and the displacements’ parameterization allows defining the precision of the movements and the rational use of energy. The adaptation and repowering of a used machine. In this approach, the recovery and technological updating proposed to recover its performance, becoming an excellent alternative to improving and perfecting the production of a company. In both cases, the CNC milling machine tools are controlled by free software. The application proposed is mechanized in soft materials

Cosechando sueños y memorias: Cuentos y cotidianidades.

El documento completo no se encuentra disponible en acceso abierto (disponible portada y tabla de contenido)

Cosechando sueños y memorias: Cuentos y cotidianidades.

El documento completo no se encuentra disponible en acceso abierto (disponible portada y tabla de contenido)