José Tiberio Hernández

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The participation of women in undergraduate program of Systems and Computing Engineering at the University of los Andes, Colombia, has been declining over the past years, and today it is only about 11%. This phenomenon has been evidenced in many universities around the world and there are several collaborative projects and networks trying to understand the(More)
We present a simulator for militar fluvial boats, in which we concentrate in the task of shooting. Shooting from a boat is particularly challenging, due to rapid movements, river conditions, and special considerations that should be taken into account for a shooters security. We present a hardware platform that simulates boat movements under different(More)
The execution of actions in interactive applications depends on the user's intention. This intention should be able to be expressed in a natural language for the user. The gestures can be exploited as an intuitive language for the user. Using a gesture-based language, an interactive application must be able to express its possible actions independently of(More)
In this paper we propose to analyze the variability of brain structures using principal component analysis (PCA). We rely on a data base of registered and segmented 3D MRI images of normal subjects. We propose to use as input of PCA sampled points on the surface of the considered objects, selected using uniformity criteria or based on mean and Gaussian(More)
Although image processing becomes increasingly important in most applications such as medicine, image processing and visualization is usually not a part of the medical education and therefore not widely spread in clinical daily routine. Contrary to students from computer science, medical students are usually not familiar to computational models or(More)
This study presents a comparison of the influence of different VR environments in the task of selecting a preferred seat in an opera theater. We used gaze-based raycasting and headsets in a low-cost head-mounted display (HMD) (GearVR); and a virtual wand, head tracking, and headsets in a CAVE, two somewhat opposing technologies in the spectrum of current VR(More)
We study the feasibility of using Belief, Desire and Intention agents for modeling the phenomena of urban growth and segregation. Uncertainty, typical of real world situations is modeled using possibility theory. We have also implemented a simple visualization tool whose aim is to track the changes in the model. Some preliminary experiments suggest that(More)
The Pequeños Científicos (Little Scientists) program is a K-6 initiative for the development of scientific and technological competencies of Colombian children. Over the past 5 years, Pequeños Científicos has developed and evaluated some teacher training, strategic planning and assessment tools for the institutionalization of the program in the educational(More)
The urban planning process for fast growing cities like Asian and Latin American cities poses huge challenges. One of the most important challenge is the interaction of many stakeholders who have their own tasks, tools, and data. This paper presents a data conversion process and a data model for creating interactive visualizations that support the(More)
The increasing amount of data generated by Location Based Social Networks (LBSN) such as Twitter, Flickr, or Foursquare, is currently drawing the attention of urban planners, as it is a new source of data that contains valuable information about the behavior of the inhabitants of a city. Making this data accessible to the urban planning domain can add value(More)