Enabling situation awareness in a given environment thus relies on being able to identify an
appropriate set of perception elements, coupled with higher-level comprehension patterns …

Geolocation information is important for humanitarian organizations to gain situational
awareness and deliver timely aid during disasters. Towards addressing the problem of …

Abstract The Modified Mercalli intensity scale (Mercalli scale for short) is a qualitative
measure used to express the perceived intensity of an earthquake in terms of damages …

Extracting location names from informal and unstructured social media data requires the
identification of referent boundaries and partitioning compound names. Variability …

Gazetteers are important tools used in a wide variety of workflows that depend on linking
natural language text to geographical space. The spatial properties of these data sources …

Many users casually reveal their locations such as restaurants, landmarks, and shops in
their tweets. Recognizing such fine-grained locations from tweets and then linking the …

Every day, many short text messages on social media are generated in response to real-
world events, providing a valuable resource for various domains such as emergency …

The widespread usage of Twitter during emergencies has provided a new opportunity and
timely resource to crisis responders for various disaster management tasks. Geolocation …

In general, existing methods for automatically detecting emergency situations using Twitter
rely on features based on domain-specific keywords found in messages. This type of …

Geographic information retrieval (GIR) is concerned with returning information in response
to an information need, typically expressed in terms of a thematic and spatial component …