@article{(Open Science Index):https://publications.waset.org/pdf/10939,
	  title     = {Join and Meet Block Based Default Definite Decision Rule Mining from IDT and an Incremental Algorithm},
	  author    = {Chen Wu and  Jingyu Yang},
	  country	= {},
	  institution	= {},
	  abstract     = {Using maximal consistent blocks of tolerance relation
on the universe in incomplete decision table, the concepts of join block
and meet block are introduced and studied. Including tolerance class,
other blocks such as tolerant kernel and compatible kernel of an object
are also discussed at the same time. Upper and lower approximations
based on those blocks are also defined. Default definite decision rules
acquired from incomplete decision table are proposed in the paper. An
incremental algorithm to update default definite decision rules is
suggested for effective mining tasks from incomplete decision table
into which data is appended. Through an example, we demonstrate
how default definite decision rules based on maximal consistent
blocks, join blocks and meet blocks are acquired and how optimization
is done in support of discernibility matrix and discernibility function
in the incomplete decision table.},
	    journal   = {International Journal of Computer and Information Engineering},
	  volume    = {2},
	  number    = {12},
	  year      = {2008},
	  pages     = {4120 - 4129},
	  ee        = {https://publications.waset.org/pdf/10939},
	  url   	= {https://publications.waset.org/vol/24},
	  bibsource = {https://publications.waset.org/},
	  issn  	= {eISSN: 1307-6892},
	  publisher = {World Academy of Science, Engineering and Technology},
	  index 	= {Open Science Index 24, 2008},