Concept Lattice Construction through the Composition and Decomposition of Formal Contexts

The purpose of this paper is to study the construction of concept lattice from variable formal contexts. Composition and decomposition theories are proposed for the unraveling of concept lattice from contexts with variable attribute set in the process of information updating. The relationship between the extension sets of the original context and that of its sub-context is analyzed. The composition and decomposition theories are then generalized to the situation involving more than two sub-contexts and the situation with variable attribute set and object set.     

Attribute Reduction in Decision Systems Based on Relation Matrix

This paper proposes, from the viewpoint of relation matrix, a new algorithm of attribute reduction for decision systems. Two new and relative reasonable indices are first defined to measure significance of the attributes in decision systems and then a heuristic algorithm of attribute reduction is formulated. Moreover, the time complexity of the algorithm is analyzed and it is proved to be complete. Some numerical experiments are also conducted to access the performance of the presented algorithm and the results demonstrate that it is not only effective but also efficient.     

Incidental findings at MRI-enterography in patients with suspected or known Crohn s disease

AIM:To determine the frequency and clinical impact of incidental findings detected with magnetic resonance imaging(MRI)-enterography in patients with suspected or known Crohn‘s disease(CD). METHODS:Incidental findings were defined as unexpected lesions outside the small intestine,not previously known or suspected at the time of referral, and not related to inflammatory bowel disease.Through a systematic review of medical charts we analyzed the clinical impact of incidental findings,and compared the MRI find...     

Pacific was northward (south

) than the normal and the easterly wind over the region (120～160°E,5～15°N ) at 200 hPa became stronger (weaker). The interdecadal variation of the tropical atmospheric heat (Q 1) a     

Notes on Rough Set Approximations and Associated Measures

We review and compare two definitions of rough set approximations. One is defined by a pair of sets in the universe and the other by a pair of sets in the quotient universe. The latter definition, although less studied, is semantically superior for interpreting rule induction and is closely related to granularity switching in granular computing. Numerical measures about the accuracy and quality of approximations are examined. Several semantics difficulties are commented.     

动机因素对高等教育中学生第二语言学习成就的影响（英文）

<正>Nowadays,with the rapid development of the society,the frequency of international and cultural exchanges has increased significantly.Not only the demand of foreign language professionals has increased,but also that common people have more opportunities to use foreign language to communicate     

Content-Based Image Retrieval： Near Tolerance Rough Set Approach

The problem considered in this paper is how to detect the degree of similarity in the content of digital images useful in image retrieval, i.e., to what extent is the content of a query image similar to content of other images. The solution to this problem results from the detection of subsets that are rough sets contained in covers of digital images determined by perceptual tolerance relations （PTRs）. Such relations are defined within the context of perceptual representative spaces that hearken back to work by J.I-I. Poincar6 on representative spaces as models of physical continua. Classes determined by a PTR provide content useful in content-based image retrieval （CBIR）. In addition, tolerance classes provide a means of determining when subsets of image covers are tolerance rough sets （TRSs）. It is the nearness of TRSs present in image tolerance spaces that provide a promising approach to CBIR, especially in cases such as satellite images or aircraft identification where there are subtle differences between pairs of digital images, making it difficult to quantify the similarities between such images. The contribution of this article is the introduction of the nearness of tolerance rough sets as an effective means of measuring digital image similarities and, as a significant consequence, successfully carrying out CBIR.     

Rough Sets and Three Valued Connectives Extended Abstract

1 Introduction
In [5] we investigated the significance of some truth-functional three valued logics of ill-known sets described by pairs of disjoint （or pairs of nested） subsets. In particular, we referred to the case of rough sets showing that if from a mathematical standpoint we obtain sound results, the interpretation with respect to reasoning about data tables is questionable. The operators taken into account in that work were the usual intersection and union （min/max） on three values and three different implications： Lukasiewicz, Gedel and Kleene     

“社会主义核心价值”怎么翻译？

“核心价值”，英语可以译为“core values”，而“社会主义核心价值观”可译为“core socialist values”，如：1．社会主义核心价值体系是兴国之魂，决定着中国特色社会主义发展方向。Cores ocialist values are the soul of the Chinese nation and serve as the guide for building socialism with Chinese characteristics     

Extension of Rough Set on Granular Structures and Axiomatic Characterizations

In granular computing granular structures represent knowledge on universe, in this paper several important granular structures are considered. In a general granular structure the notions of interior point, accumulation point and boundary point etc are proposed, by use of these notions and referring to topological method, the lower and upper approximations of a subset of universe are defined such that they are one kind of generalization of the existing approximations based on some special granular structure. Basic properties of new rough set approximations are investigated. Furthermore, granular structures on universe are characterized by the lower and upper approximation operators     

Pessimistic Rough Decision

With granular computing point of view, this paper first presents a novel rough set model with a multigranulation view, called pessimistic rough decision, where set approximations are defined through using consistent granules among multiple granular spaces on the universe. Then, we investigate several important properties of the pessimistic rough decision model. With introduction of the rough set model, we have developed two types of multigranulation rough sets （MGRS）： optimistic rough decision and pessimistic rough decision. These multigranulation rough set models provide a kind of effective approach for problem solving in the context of multi granulations.     

nclusions Citaprol

all - dose Quetiapine could improve the efficacy compared with Citaprolan in treating depression, and could improve sleep disorder, orexis and the feeling of body discomfort. Also Quet     

Interval-Valued Intuitionistic Fuzzy-Rough Sets

This paper combines interval-valued intuitionistic fuzzy sets and rough sets. It studies rougheness in interval-valued intuitionistic fuzzy sets and proposes one kind of interval-valued intuitionistic fuzzy-rough sets models under the equivalence relation in crisp sets. That extends the classical rough set defined by Pawlak.     

f MotorcycleDAI Rong1,2,HE Yu-lin1,YANG Xian-gang1

Mechanical Engineering,Chongqing University,Chongqing 400044,China;2.College of Engineering Technology,Southwest University,Chongqing 400715,China)Based on the analysis of the cu     

中国党政机关英译名

中国共产党中央委员会Central Committee of the Communist Party of China     

in the North of China. The lack of water in Chi

torms because rivers and lakes are drying up. Especially in these thirty years, the decrease of rain and increase of gale become the main causes of frequent sandstorms and dust devil which always occur as a kind     

“神翻译”唤醒了什么,丢失了什么

<正>一组"神翻译"前段时间风靡于网络,题为《中文之美》。转发者无不在一片赞叹后,深受震撼。原文:You say that you love rain,but you open your umbrella when it rains.You say that you love the sun,but you find a shadow spot when the sun shines.You say that you love the wind,but you close your windows when wind blows.This is why I am afraid,you say that you love me too.     

he remarkable tragedy

from upper reaches will lead to the deterioration of eco system in lower reaches & tremendous renovation cost. As a result, it is urgent to establish compensation mechanism in river valley & "Polluter Pays Principle". This paper takes the standardization of renovation co     

Uncertainty and Reduction in Intuitionistic Fuzzy Covering Based Rough Sets

This paper proposes a novel pair of induced IF covering approximation operators in an IF covering approximation space, and discusses some basic properties about definable IFSs. A measure is defined to describe the uncertainty of IFSs in IF coveting approximation spaces. Finally, we study the properties of reductions of an IF coveting respectively based on induced IF covering approximation operators and IF covering approximation operators.     

书讯

《哲学的艺术》:美国普林斯顿大学出版社将于3月出版美国南加利福尼亚大学艺术史副教授苏珊娜·伯杰(Susanna Berger)的新书《哲学的艺术:从欧洲文艺复兴晚期到启蒙运动早期的视觉思考》(The Art of Philosophy:Visual Thinking in Europe from the Late Renaissance to the Early Enlightenment)作者发