期刊: EGYPTIAN INFORMATICS JOURNAL, 2021; 22 (1)
Non-negative matrix factorization (NMF) is an effective model in converting data into non-negative coefficient representation whose discriminative abi......
期刊: EGYPTIAN INFORMATICS JOURNAL, 2021; 22 (2)
Local outlier detection is a hot area and great challenge in data mining, especially for large-scale datasets. On the one hand, traditional algorithms......
期刊: EGYPTIAN INFORMATICS JOURNAL, 2019; 20 (1)
Based on 3D cat map, reverse 3D cat map and an improved class of chaotic maps with Markov properties, an effective bit-level image encryption scheme i......