Results 31 to 40 of about 765,630 (290)

Three-way attribute reducts

International Journal of Approximate Reasoning, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhang, Xianyong, Miao, Duoqian
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Neighborhood conditional mutual information entropy attribute reduction algorithm for hybrid data

大数据, 2022
Attribute reduction is an important research content of the rough set theory.Its main purpose is to eliminate irrelevant attributes in information systems, reduce data dimensions and improve data knowledge discovery performance.However, most of the ...
Haibo LAN
doaj  

A Novel Multi-Criteria Decision-Making Method Based on Rough Sets and Fuzzy Measures

Axioms, 2022
Rough set theory provides a useful tool for data analysis, data mining and decision making. For multi-criteria decision making (MCDM), rough sets are used to obtain decision rules by reducing attributes and objects.
Jingqian Wang, Xiaohong Zhang
doaj   +1 more source

Entropy Projection Curved Gabor with Random Forest and SVM for Face Recognition [PDF]

, 2019
In this work, we propose a workflow for face recognition under occlusion using the entropy projection from the curved Gabor filter, and create a representative and compact features vector that describes a face.
AS Georghiades, C Shannon, CC Chang, CI Chang, D Gabor, J Wright, JG Daugman, K Grm, L Breiman, L Zhang, M Yuan, PJ Phillips, R He, R Weng, S Janitza, TH Chan, VN Vapnik, W Hwang, WH Yang, YF Yu, ZR Lai   +20 more
core   +1 more source

TFD-IIS-CRMCB: Telecom Fraud Detection for Incomplete Information Systems Based on Correlated Relation and Maximal Consistent Block

Entropy, 2023
Telecom fraud detection is of great significance in online social networks. Yet the massive, redundant, incomplete, and uncertain network information makes it a challenging task to handle.
Ran Li, Hongchang Chen, Shuxin Liu, Kai Wang, Biao Wang, Xinxin Hu   +5 more
doaj   +1 more source

Restoring betatron phase coherence in a beam-loaded laser-wakefield accelerator

, 2021
Matched beam loading in laser wakefield acceleration (LWFA), characterizing the state of flattening of the acceleration electric field along the bunch, leads to the minimization of energy spread at high bunch charges.
Bussmann, M., Cabadağ, J. P. Couperus, Debus, A., Irman, A., Krämer, J. M., Köhler, A., Pausch, R., Schramm, U., Schöbel, S., Zarini, O.   +9 more
core   +1 more source

Efficient Attribute Reduction Algorithm [PDF]

, 2004
Efficiency of algorithms is always an important issue concerned by so many researchers. Rough set theory is a valid tool to deal with imprecise problems. However, some of its algorithms’ consuming time limits the applications of rough set. According to this, our paper analyzes the reasons of rough set algorithms’ inefficiency by focusing on two ...
Zhongzhi Shi, Shaohui Liu, Zheng Zheng
openaire   +1 more source

Reduct-based ranking of attributes

Procedia Computer Science, 2020
Abstract The paper is dedicated to the area of feature selection, in particular a notion of attribute rankings that allow to estimate importance of variables. In the research presented for ranking construction a new weighting factor was defined, based on relative reducts.
Zielosko, Beata, Stańczyk, Urszula
openaire   +3 more sources

Optimal Granularity Selection and Attribute Reduction in Meso-granularity Space [PDF]

Jisuanji kexue, 2023
The conventional formal concept analysis adopts a meso-granularity formal context to meet the requirements of cross-layer granulation of data.However,it does not effectively combine the search for optimal granularity with attribute reduction,nor does it ...
LI Teng, LI Deyu, ZHAI Yanhui, ZHANG Shaoxia
doaj   +1 more source

Magnetomechanical effects in textured polycrystalline Tb76Dy24 [PDF]

, 2000
Uniaxial stress-strain measurements were performed on polycrystalline Tb76Dy24 alloys which exhibit "giant magnetostriction" at cryogenic temperatures.
Chave, R., Dooley, J., Fultz, B., Good, N., Graetz, J.   +4 more
core   +1 more source