58 citations · 64 across the 17 of their papers we have counts for
17 papers
Three-way conflict analysis based on alliance and conflict functions
Junfang Luo, Mengjun Hu, Guangming Lang +2
Trisecting agents, issues, and agent pairs are essential topics of three-way conflict analysis. They have been commonly studied based on either a rating or an auxiliary function. A…
Three-Way Decisions-Based Conflict Analysis Models
Guangming Lang
Three-way decision theory, which trisects the universe with less risks or costs, is considered as a powerful mathematical tool for handling uncertainty in incomplete and imprecise…
Incremental approaches to updating attribute reducts when refining and coarsening coverings
Mingjie Cai, Guangming Lang
In a dynamic environment, knowledge reduction of information systems with variations of object sets, attribute sets and attribute values is an important topic of rough set theory,…
Related families-based attribute reduction of dynamic covering information systems with variations of object sets
Guangming Lang
In practice, there are many dynamic covering decision information systems, and knowledge reduction of dynamic covering decision information systems is a significant challenge of co…
Related family-based attribute reduction of covering information systems when varying attribute sets
Guangming Lang
In practical situations, there are many dynamic covering information systems with variations of attributes, but there are few studies on related family-based attribute reduction of…
Conflict Analysis for Pythagorean Fuzzy Information Systems with Group Decision Making
Guangming Lang
Pythagorean fuzzy sets provide stronger ability than intuitionistic fuzzy sets to model uncertainty information and knowledge, but little effort has been paid to conflict analysis…
Double-quantitative fuzzy coverings approximation operators
Guangming Lang
In digital-based information boom, the fuzzy covering rough set model is an important mathematical tool for artificial intelligence, and how to build the bridge between the fuzzy c…
Comments on "Characteristic matrix of covering and its application to Boolean matrix decomposition[Information Sciences 263(1), 186-197, 2014]"
Guangming Lang
In this note, we show some improvements for Theorem 7 and Example 8 in Shiping Wang[Information Sciences 263(1), 186-197, 2014]. Concretely, we study further the sixth lower and up…
Incremental approaches to knowledge reduction of covering decision information systems with variations of coverings
Guangming Lang
In practical situations, calculating approximations of concepts is the central step for knowledge reduction of dynamic covering decision information system, which has received grow…
Construction of symplectic (partitioned) Runge-Kutta methods with continuous stage
Wensheng Tang, Guangming Lang, Xuqiong Luo
Hamiltonian systems are one of the most important class of dynamical systems with a geometric structure called symplecticity and the numerical algorithms which can preserve such ge…
Knowledge reduction of dynamic covering decision information systems with immigration of more objects
Guangming Lang
In practical situations, it is of interest to investigate computing approximations of sets as an important step of knowledge reduction of dynamic covering decision information syst…
Decision-theoretic rough sets based on time-dependent loss function
Guangming Lang
A fundamental notion of decision-theoretic rough sets is the concept of loss functions, which provides a powerful tool of calculating a pair of thresholds for making a decision wit…
Decision-theoretic rough sets-based three-way approximations of interval-valued fuzzy sets
Guangming Lang
In practical situations, interval-valued fuzzy sets are frequently encountered. In this paper, firstly, we present shadowed sets for interpreting and understanding interval fuzzy s…
The construction of characteristic matrixes of dynamic coverings using an incremental approach
Guangming Lang, Qingguo Li, Lankun Guo +1
The covering approximation space evolves in time due to the explosion of the information, and the characteristic matrixes of coverings viewed as an effective approach to approximat…
Compression of dynamic fuzzy relation information systems
Mingjie Cai, Qingguo Li, Guangming Lang
This paper further investigates the data compression of fuzzy relation information systems. First, we introduce an algorithm for constructing the homomorphism between fuzzy relatio…
Data compression of dynamic set-valued information systems
Guangming Lang, Qingguo Li
This paper further investigates the set-valued information system. First, we bring forward three tolerance relations for set-valued information systems and explore their basic prop…
Generalized fuzzy rough sets based on fuzzy coverings
Guangming Lang, Qingguo Li, Lankun Guo
This paper further studies the fuzzy rough sets based on fuzzy coverings. We first present the notions of the lower and upper approximation operators based on fuzzy coverings and d…