zeroto521 / twd

Model of three-way decision

twd

twd means Model of three-way decision.

Firstly the space structure of set pair information granule can be divided into positive granule, negative granule, different granule, which were similar and slightly different with three regions of generalized three-way decision. The three kinds of information granules in set pair information granule space were built based on certain positive degree, negative degree and different degree. Secondly, according to the given threshold, set pair information granule is divided into mutually disjointing positive region, negative region and different region.

Prerequisites

• numpy

More details for requirements file.

Installation

>>> git clone https://github.com/Zeroto521/twd.git
>>> cd twd
>>> python setup.py install

Examples

>>> from twd import TWD
>>> model = TWD(Lambda=.6, Gamma=.15, PP=0, BP=25, NP=5, PN=10, BN=100, NN=0)
>>> model.predict(x_train, y_train, x_test)

More details for example.py folder and twd.py source code.

License

MIT License. @Zeroto521

Reference

• ZHANG Chun-ying, WANG Li-ya, LI Ming-xia, LIU Bao-xiang. Model of three-way decision based on the space of set pair information granule and its application[J] Journal on Communications, 2016, 37 (Z1): 15-24.