Modelling uncertainty in an advisory system for mining works planning in hard coal mines
Edyta Brzychczy · Górnictwo i Geoinżynieria · 2012
The literature presents several definitions of expert systems [7], however, it also consentaneously state, that these are computer software which use knowledge within the problem area for which they were designed. The software, through the adequately assumed notation (representation) contains knowledge regarding the analyzed problem (comparable with that of an expert knowledge) and via reasoning procedures enable the search for its solution. The advisory systems are the sub-group of the expert systems, the aim of which is the analysis and providing solution for the formulated problem. The power of the advisory software lies in the knowledge encoded therein, and not in the course of the inference process [11]. Hence, in order for such systems to function properly, the quality of knowledge stored inside is important. This knowledge, and most importantly, the expert knowledge is a result of the human thought activity as well as the execution of some perception process. Hence its character is most often uncertain, inaccurate and/or fuzzy.