Qualitative knowledge representation of spatial locations and relations is popular in many
text-based media, for example, postings on social networks, news reports, and …

Qualitative spatial representation and reasoning plays a important role in various spatial
applications. In this paper we introduce a new formalism, we name RCD calculus, for …

Uncertain regions can be represented as having broad boundaries (BBRs) and their
topological relations can be modeled by the extended 9-intersection. In order to satisfy the …

This paper focuses on the consistency issues related to integrating multiple sets of spatial
data in spatial information systems such as Geographic Information Systems (GISs). Data …

In order to detect the spatial conflicts in the process of spatial database updating, a refined
description of spatial relationships is needed. This paper presents a topological chain model …

Spatial data mining refers to the extraction of knowledge, spatial relationships, or other
interesting patterns not explicitly stored in spatial databases. The approaches usually …

In this paper we propose a general approach for reasoning in space. The approach is
composed of a set of two general constraints to govern the spatial relationships between …

The process of knowledge discovery in databases aims at the discovery of associations
within data sets. Data Mining is a central step of this process. It corresponds to the …

Generalization of spatial databases consists of complicated operations including not only
geometric transformations but also topological changes. The changes often result in an …

In this paper, we present a novel unifying concept of pairwise spatial relations. We develop
two way directional relations with respect to a unique point set, based on topology of the …