We present a novel framework in which the link prediction problem in temporal social networks is formulated as trajectory prediction in a continuous space. Four major modules constitute this framework: (1) graph embedding: the discrete space of graphs is mapped into a continuous space while preserving distances for a given graph kernel; (2) manifold alignment: graph embeddings corresponding to ...

We present a motion planning algorithm to compute collision-free and smooth trajectories for robots cooperating with humans in a shared workspace. Our approach uses offline learning of human actions and their temporal coherence to predict the human actions at runtime. This data is used by an intention-aware motion planning algorithm that is used to compute a reliable trajectory based on these p...

This chapter presents an interactive video-surveillance solution for assisting human operators in the control of movements across a multi-region scenario (perimeter control). It has been conceived as a multi-camera system to detect anomalous trajectory events, such as entering or leaving a region or changing the walking speed, by means of a dynamic collection of decision rules. They relate spat...

In this paper we address two problems involved in video segmentation for human–computer interface applications. First we propose an adaptive method for hand skin segmentation to enhance the hand feature detector. A new analysis colour space is used in order to obtain a reliable adaptive skin detector. The colour space is chosen so that the image has a sparser representation than those using the...

We present a novel framework in which the link prediction problem in temporal social networks is formulated as trajectory prediction in a continuous space. Four major modules constitute this framework: (1) graph embedding: the discrete space of graphs is mapped into a continuous space while preserving distances for a given graph kernel; (2) manifold alignment: graph embeddings corresponding to ...

An approach toward the automated solution of aircraft trajectory optimization problems is introduced and implemented in an interactive program called visual interactive aircraft trajectory optimization (VIATO). This MS Windowscompatible software produces minimum time trajectories to a fixed or moving target. It is easy to use by nonexperts as no previous knowledge of the methods of optimal cont...

A sensitive, specific and precise procedure for the measurement of digoxin by radioimmunoassay is presented. The method is rapid, convenient and highly reliable for this very important measurement. Studies designed to evaluate the validity and reproducibility of the assay are presented and discussed.

In this paper we explore trajectory clustering as a means for representing the normal behavior of vessels in a coastal surveillance scenario. Trajectory clustering however suffers from some drawbacks in this type of setting and we therefore propose a new approach, spline-based clustering, with a potential for solving the task of representing the normal course of events.