Geotagging images of interest are increasingly important to law enforcement, national security, and journalism. Today, many do not carry location tags that trustworthy resilient tampering; landmark-based visual clues may be readily present in every image, especially those taken indoors. In this paper, we exploit an environmental signature from the power grid, electric network frequency (ENF) si...

and pervasive networks and applications include a growing number of research themes. In most use cases, applications require location information to interpret their environment and behave accordingly. In this paper, location algorithms and positioning methods that can be used for wireless geolocation are presented.

[1] Verification of the geolocation assigned to individual ground pixels as measured by the Ozone Monitoring Instrument (OMI) aboard the NASA EOS-Aura satellite was performed by comparing geophysical Earth surface details as observed in OMI false color images with the high-resolution continental outline vector map as provided by the Interactive Data Language (IDL) software tool from ITT Visual ...

LCGT shall be planned to be the first-generation detector with an advanced technique for employing a cryogenic mirror in order to firstly detect a gravitational wave, and after detection, the detector will serve as an astronomical tool to observe the Universe through gravitational wave radiation. In collaborative observation with the LIGO, GEO and Virgo projects, LCGT desires to contribute to t...

We study the problem of identifying the topics and sentiments and tracking their shifts from social media texts in different geographical regions during emergencies and disasters. We propose a location-based dynamic sentiment-topic model (LDST) which can jointly model topic, sentiment, time and Geolocation information. The experimental results demonstrate that LDST performs very well at discove...

This work describes the design and the experimentation of Castor, a novel architecture for creating, editing and delivering engaging geolocalized context-aware stories outdoors. Castor is one of the first architectures that enable the direct creation of structured stories in-situ, rather than the simple gathering of material, and that use an extended set of context dimensions (i.e., environment...