Welcome to knowledge extraction home!
Extraction Tools, LLC” (KET, LLC) is a software development and data analysis company
providing services based on a proprietary “Knowledge Extraction Technology". KET, LLC creates
and customizes decision support software that typically relates to a niche business:
medical diagnostics, financial evaluation, security early warning
is a “assumption free" approach to automatic construction of models from
empirical evidence (which may include data, semantic nets, conceptual frame systems,
knowledge bases and results of knowledge acquisition from experts).
The methodology is
“assumption free" in the sense that models (and even types of models)
describing data are not
assumed in the beginning of the analysis, they are being built or
identified in the process of analysis.
Approaches used in KET reflect paradigm
shifts occurred in information technology during the last three decades:
Shift from storage-oriented understanding
of data management to the communication oriented approach. Regardless of
the formal representation of the analyzed input, we find interpretation
of sources a virtual database (or knowledge base) very fruitful
Shift in programming and artificial
intelligence from structural to object-oriented to agent-based paradigm.
Unification of different types of sources and their treatment as open
systems helps to solve problems, which are seemingly serious, but with a
shift of interpretation are ephemeral
If to be brief and non-technical, we can
characterize our approach as based on three principles:
Unification and "meaning". All types of
sources including relational data, free text expert descriptions and
numerous other types are treated under one representational umbrella.
Instead of interpretation of sources as the focus of analysis, they are
understood as messages about "object of investigation" behind the scene.
This introduces and provides the formal definition of "meaning".
Consistency. Sources may contain errors
and irrelevant parts. Statements of experts may be biased or incorrect.
Generalized concept of inference helps to extract a consistent part of
what is available.
Open system ideology. The analysis
process may go beyond what is given. The tools may ask questions back.
In contrast to simple systems, which can provide answers or say "don't
know", our tools generate questions to the point: they focus the experts
(or a search system) on promising directions, which may provide
useful extension of input
Principles themselves live in IT for a
long time, but to base a technology on them consistently is not a
Basic principles of the
Technology” are described in the
“White Paper on
KE Technology” section (see also
"Frequently Asked Questions"). Physically it is implemented as a big
tool kit "KETools" containing 800+ modules.
more complete list of available products and services, see
"Tools" sections. For
examples of projects completed in the past, see "Completed
For those who prefer a
non-technical overview of ideas and motivation behind the technology, we
included a little story describing what KET is about (see
Story" in our KET Archive),
New feature !!
A new KET module was introduced recently to support
interaction with "Mathematica 8" system.
KET, LLC joined
BioMed Content Group, Inc.
in initiative of using AI agents to facilitate work of physicians and