Szukana fraza: [Abstract = The paper presents a new approach to fuzzy classification in the case of missing data. Rough\-fuzzy sets are incorporatedinto logical type neuro\-fuzzy structures and a rough\-neuro\-fuzzy classifier is derived. Theorems which allow determiningthe structure of the rough\-neuro\-fuzzy classifier are given. Several experiments illustrating the performance of the roughneuro\-fuzzy classifier working in the case of missing features are described.]