@inproceedings{wachtel2016,
author = {Alexander Wachtel and Jonas Klamroth and {Walter F.} Tichy},
title = {A Natural Language Dialog System Based on Active Ontologies},
year = {2016},
month = apr,
booktitle = {The Ninth International Conference on Advances in
Computer-Human Interactions ({ACHI} 2016)},
eventdate = {2016-04-24/2016-04-28},
venue = {Venive, Italy},
abstract = {Programming today requires years of training.
With natural language, programming would become
available to everyone and enable end users to
program their devices or extend their functionality
without any knowledge of programming languages.
We present an assistant usable in technical domains
that uses natural language understanding, programming
stepby-step and an active dialog management system.
It allows users to manipulate spreadsheet data by
using natural language. We extend our previous system
with active ontologies. By adding additional information
to an ontology, such as a rule evaluation system and a
fact store, it becomes an execution environment instead
of just being a representation of knowledge. Sensor nodes
register certain events and store them in the fact store.
An evaluation mechanism tests the new facts against the
existing rules and performs the associated action if one
or more rules apply to the stored facts. The system also
handles references to previous results and expressions,
allowing the construction of complex expressions step-by-step.
It also creates new formulas by using End-User Programming
concepts and supports the use of repetitive tasks that
involve use of conditions and negations.
An evaluation shows that the active ontology-based approach
resolves 90\% of the input tasks which is an increase of
10\% over the pattern matching approach.}
}
