Ras, Zbigniew W.; Joshi, Sucheta Query approximate answering system for an incomplete DKBS. (English) Zbl 0881.68041 Ann. Soc. Math. Pol., Ser. IV, Fundam. Inf. 30, No. 3-4, 313-324 (1997). MSC: 68P15 68T30 PDFBibTeX XMLCite \textit{Z. W. Ras} and \textit{S. Joshi}, Ann. Soc. Math. Pol., Ser. IV, Fundam. Inf. 30, No. 3--4, 313--324 (1997; Zbl 0881.68041)
Michałewicz, Maciej (ed.); Ras, Zbigniew W. (ed.) Intelligent information systems. Workshops, WIS ’94, WIS ’95. Dedicated to Mirek Dąbrowski. (English) Zbl 0879.00056 Ann. Soc. Math. Pol., Ser. IV, Fundam. Inf. 30, No. 3-4, 227-402 (1997). MSC: 00B25 68-06 68Txx PDFBibTeX XML
Ras, Zbigniew W. Query processing in distributed information systems. (English) Zbl 0764.68034 Ann. Soc. Math. Pol., Ser. IV, Fundam. Inf. 15, No. 3-4, 381-397 (1991). MSC: 68P15 68T35 PDFBibTeX XMLCite \textit{Z. W. Ras}, Ann. Soc. Math. Pol., Ser. IV, Fundam. Inf. 15, No. 3--4, 381--397 (1991; Zbl 0764.68034)
Ras, Zbigniew W.; Zemankova, Maria Learning concept descriptions in a growing language. (English) Zbl 0664.68089 Ann. Soc. Math. Pol., Ser. IV, Fundam. Inf. 12, No. 1, 79-95 (1989). MSC: 68T05 PDFBibTeX XMLCite \textit{Z. W. Ras} and \textit{M. Zemankova}, Ann. Soc. Math. Pol., Ser. IV, Fundam. Inf. 12, No. 1, 79--95 (1989; Zbl 0664.68089)
Chen, Keh-Hsun; Raś, Zbigniew W. Homogeneous information trees. (English) Zbl 0569.68088 Ann. Soc. Math. Pol., Ser. IV, Fundam. Inf. 8, 123-149 (1985). MSC: 68P20 PDFBibTeX XMLCite \textit{K.-H. Chen} and \textit{Z. W. Raś}, Ann. Soc. Math. Pol., Ser. IV, Fundam. Inf. 8, 123--149 (1985; Zbl 0569.68088)
Ras, Zbigniew Information retrieval systems, an algebraic approach. II. (English) Zbl 0493.68111 Ann. Soc. Math. Pol., Ser. IV, Fundam. Inf. 4, 777-818 (1981). MSC: 68P20 PDFBibTeX XMLCite \textit{Z. Ras}, Ann. Soc. Math. Pol., Ser. IV, Fundam. Inf. 4, 777--818 (1981; Zbl 0493.68111)
Ras, Zbigniew Information retrieval systems, an algebraic approach. I. (English) Zbl 0493.68110 Ann. Soc. Math. Pol., Ser. IV, Fundam. Inf. 4, 551-603 (1981). MSC: 68P20 PDFBibTeX XMLCite \textit{Z. Ras}, Ann. Soc. Math. Pol., Ser. IV, Fundam. Inf. 4, 551--603 (1981; Zbl 0493.68110)