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The richness of user-centric information gathered by modern devices can be used to keep track of memorable events, therefore acting as a prosthesis of the prone-to-forget human memory. We propose to combine virtual and physical sensors from mobile devices ...

With the large-scale adoption of GPS equipped mobile sensing devices, positional data generated by moving objects (e.g., vehicles, people, animals) are being easily collected. Such data are typically modeled as streams of spatio-temporal (x,y,t) points, ca ...

We propose a method for computing semantic relatedness between words or texts by using knowledge from hypertext encyclopedias such as Wikipedia. A network of concepts is built by filtering the encyclopedia's articles, each concept corresponding to an artic ...

With the advent of social image-sharing communities, millions of images with associated semantic tags are now available online for free and allow us to exploit this abundant data in new ways. We present a fast non-parametric statistical framework designed ...

Finding relations between image semantics and image characteristics is a problem of long standing in computer vision and related fields. Despite persistent efforts and significant advances in the field, today’s computers are still strikingly unable to achi ...

Focus on movement data has increased as a consequence of the larger availability of such data due to current GPS, GSM, RFID, and sensors techniques. In parallel, interest in movement has shifted from raw movement data analysis to more application-oriented ...

Message Distortion in Information Cascades

Chat with Graph Search

MemorySense: Reconstructing and Ranking User Memories on Mobile Devices

Semantic trajectories: Mobility data computation and annotation

Computing text semantic relatedness using the contents and links of a hypertext encyclopedia

Joint Statistical Analysis of Images and Keywords with Applications in Semantic Image Enhancement

Semantic Awareness for Automatic Image Interpretation

Semantic Trajectories: Mobility Data Computation and Annotation

Semantic Trajectories Modeling and Analysis