The growth of user needs for accessing information resources, the technological advance in this field, and the limitations of graphical and formbased interfaces, motivate the proposal of new solutions and the revision of several others in order to solve one of the main problems in computer applications: human-machine interface. Natural language processing has experienced a new impulse in recent...

This demonstration is based upon the results of a research project sponsored by the Defense Advance Research Projects Agency (DARPA), called High Performance Knowledge Bases (HPKB). The demonstrated portion of HPKB follows a questionanswering paradigm. The integrated architecture developed at Science Applications International Corporation (SAIC), called the HPKB Integrated Knowledge Environment...

THALES is a software package for plane geometry constructions, supplied with a natural language interlace. Using THALES requires no knowledge of a programming language. The interface is capable of processing practically all kinds of instructions within the subset of plane geometry English. The "static semantic" module has been generated on the basis of a high-level attribute specification. Tran...

This paper discusses methodological issues related to natural language modeling in the framework of the LRE project ANTHEM 1. The objective of ANTHEM is to develop a portable prototype of a multilingual natural language interface that allows users of Healthcare Information Systems to enter diagnostic expressions using their own natural language, and to have this input translated in whatever for...

This paper presents the development of a Natural Language Interface (NLI) which is semantic-based and uses Conceptual Dependency representation. The system was developed using Lisp and currently runs on a Symbolics Lisp machine. A key point is that the parser handles morphological analysis, which expands its capabilities of understanding more words. t. L_," " ?,,1 _. ( \ I'; _ '(

This paper presents a pilot study on the process of manually annotating natural language EHR questions with a formal meaning representation. This formal representation could then be used as a structured query as part of a natural language interface for electronic health records. This study analyzes the challenges of representing EHR questions as structured queries as well as the feasibility of ...

Traditional information retrieval (IR) systems respond to user queries with ranked lists of relevant documents. The separation of content and structure in XML documents allows individual XML elements to be selected in isolation. Thus, users expect XML-IR systems to return highly relevant results that are more precise than entire documents. This paper presents such a system. The system accepts q...

Spatial Object Composition (SOC) systems involve tasks of virtual combination of physical objects (such as furniture parts) with the purpose of creating new, complex objects or arranging the objects in space. In this paper we present a framework for implementing Natural Language Interfaces focused on SOC systems. We propose the use of a rewriting rules grammar (which we call Direct Translation ...

As the number of viable applications for unmanned aerial vehicle (UAV) systems increases at an exponential rate, interfaces that reduce the reliance on highly skilled engineers and pilots must be developed. Recent work aims to make use of common human communication modalities such as speech and gesture. This paper explores a multimodal natural language interface that uses a combination of speec...

The paper presents an ongoing research that aims at OWL ontology authoring and verbalization using a deterministic controlled natural language (CNL) that would be as natural and intuitive as possible. Moreover, we focus on a multilingual CNL interface to OWL by considering both highly analytical and highly synthetic languages (namely, English and Latvian). We propose a flexible twolevel transla...