This repository contains KnowRob core packages and general issue tracker for the KnowRob knowledge base.

KnowRob is a knowledge base for robots. It equips robots with the capability to organize information in re-usable knowledge chunks, and to perform reasoning in an expressive logic formalism. It further provides a set of tools for visualization and acquisition of knowledge.

The main programming language used is Prolog. Prolog is used to load RDF data, and for the declaration of rules that realize KnowRob's QA interface. Several C++ libraries are wrapped into Prolog rules to make them available in the QA interface. RDF data may be loaded from file, or gathered from computational methods such as webstore crawling, or commensense rules. This concept is called virtual knowledge base in KnowRob.

One of the tasks KnowRob was originally designed for is to bridge the gap between abstract instructions and their execution. KnowRob can supply the difference between the (often shallow and symbolic) information in the instructions and the (detailed, grounded and often real-valued) information needed for execution. For filling these information gaps, a robot first has to identify them in the instructions, reason about suitable information sources, and combine pieces of information from different sources and of different structure into a coherent knowledge base.

Another crucial functionality KnowRob provides is the acquisition of experiential knowledge. These are situation-dependant knowledge chunks that describe an epsiode of a robot (or human) executing a task. Formal descriptions are combined with sensor data which allows to use an expressive language for the selection of training examples for training a model over the experiences of a robot or human.

Please visit http://www.knowrob.org for more information and installation instructions.