Annotating Geographical Entities

Annotating Geographical Entities

This paper describes a study based on exploration of relations between geographical entities. We suggested a new tool for training and evaluation required by related annotation experiments. It relates to an annotator used for semi-automatic annotation, starting with the geography manual. We define fifteen types of entities: location, geo_position, geology, landform, clime, water, dimension, per...

Annotating Geographical Entities on Microblog Text

This paper presents a discussion of the problems surrounding the task of annotating geographical entities on microblogs and reports the preliminary results of our efforts to annotate Japanese microblog texts. Unlike prior work, we not only annotate geographical location entities but also facility entities, such as stations, restaurants, shopping stores, hospitals and schools. We discuss ways in...

Areas of fuzzy geographical entities

The use of geographical entities with fuzzy spatial extent, called here fuzzy geographical entities (FGE’s), in Geographical Information Systems requires the existence of operators capable of processing them. This paper focuses on the computation of areas of FGE’s. Two methods are considered, one crisp due to Rosenfeld (1984), which will be shown to be limited in its applicability, and the othe...

Annotating Named Entities in Consumer Health Questions

We describe a corpus of consumer health questions annotated with named entities. The corpus consists of 1548 de-identified questions about diseases and drugs, written in English. We defined 15 broad categories of biomedical named entities for annotation. A pilot annotation phase in which a small portion of the corpus was double-annotated by four annotators was followed by a main phase in which ...

Recognising Geographical Entities in Scottish Historical Documents