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a r t i c l e i n f o a b s t r a c t We present a detailed semantics for linguistic spatial expressions supportive of computational processing that draws substantially on the principles and tools of ontological engineering and formal ontology. We cover language concerned with space, actions in space and spatial relationships and develop an ontological(More)
This paper describes the general concept of Route Graphs, to be used for navigation by various agents in a variety of scenarios. We introduce the concept of an ontology and describe the modelling of general graphs as an example. This approach is then applied to define a " lightweight " ontology of Route Graphs in an indoors environment, giving at first just(More)
For AOP (Agent Oriented Programming) to become a mature discipline, lessons must be learned from practical language implementations. We present AF-APL (AgentFac-tory-Agent Programming Language) as an Agent Oriented Programming Language that has matured with continued revisions and implementations, resulting in a language-which, although based on the more(More)
Establishing a clean relationship between a robot's spatial model and natural language components is a non-trivial task, but is key to designing verbally controlled, navigating service robots. In this paper we examine the issues involved in the development of dialogue controlled navigating robots. In particular, we treat our robots as so-called Shared(More)
  • Graham Katz Georgetown, Inderjeet Mani MITRE, +7 authors John A. Bateman
  • 2008
In this talk I present from an ontological perspective some of our ongoing work on the situated interpretation of natural language concerning space. Since we are working on descriptions of space, scenes, navigation, way-finding assistance and tasks that need to be carried out in spatially rich environments , a broad range of spatial language and, more(More)
The discovery of millions of PIWI-interacting RNAs revealed a fascinating and unanticipated dimension of biology. The PIWI-piRNA pathway has been commonly perceived as germline-specific, even though the somatic function of PIWI proteins was documented when they were first discovered. Recent studies have begun to re-explore this pathway in somatic cells in(More)