中文比较句识别及比较关系抽取

比较是一种具有一定说服力的评估方式,利用机器进行比较句的识别以及比较关系的抽取可以对观点挖掘、信息推荐等应用提供重要的依据。该文通过构建中文比较模式库以实现中文比较句的自动识别。在此基础上,该文通过选取比较主体、比较客体及其上下文的词、词性、位置、语义以及比较属性的领域知识等特征,利用条件随机域模型进行中文比较关系抽取。实验结果表明,中文比较模式库的构建有助于比较句的自动识别,而在词、词性、位置等Baseline特征中融入语义、领域知识及启发式规则特征后,基于条件随机域的比较关系抽取结果有了显著的提高。     

基于语义相似度的Web服务匹配研究

现有的语义Web服务匹配算法没有考虑到本体概念间的多元关系,导致概念的语义不能被完整地反映出来,从而影响了算法的匹配性能。利用本体概念间的多元关系定义了一种语义距离,并通过该语义距离给出了概念间的语义相似度计算方法,在此基础上提出基于语义相似度的Web服务匹配算法。该算法通过本体概念间的语义相似度来反映Web服务的匹配程度。最后,通过对比实验验证了该算法的可行性和有效性。     

A novel fuzzy multi-criteria decision framework for sustainable supplier selection with incomplete information

Both academic and corporate interest in sustainable supply chains has increased in recent years. Supplier selection process is one of the key operational tasks for sustainable supply chain management. This paper examines the problem of identifying an effective model based on sustainability principles for supplier selection operations in supply chains. Due to its multi-criteria nature, the sustainable supplier evaluation process requires an appropriate multi-criteria analysis and solution approach. The approach should also consider that decision makers might face situations such as time pressure, lack of expertise in related issue, etc., during the evaluation process. The paper develops a novel approach based on fuzzy analytic network process within multi-person decision-making schema under incomplete preference relations. The method not only makes sufficient evaluations using the provided preference information, but also maintains the consistency level of the evaluations. Finally, the paper analyzes the sustainability of a number of suppliers in a real-life problem to demonstrate the validity of the proposed evaluation model.     

A Multi-parameter Approach to Automated Building Grouping and Generalization

This paper presents an approach to automated building grouping and generalization. Three principles of Gestalt theories, i.e. proximity, similarity, and common directions, are employed as guidelines, and six parameters, i.e. minimum distance, area of visible scope, area ratio, edge number ratio, smallest minimum bounding rectangle (SMBR), directional Voronoi diagram (DVD), are selected to describe spatial patterns, distributions and relations of buildings. Based on these principles and parameters, an approach to building grouping and generalization is developed. First, buildings are triangulated based on Delaunay triangulation rules, by which topological adjacency relations between buildings are obtained and the six parameters are calculated and recorded. Every two topologically adjacent buildings form a potential group. Three criteria from previous experience and Gestalt principles are employed to tell whether a 2-building group is ‘strong,’ ‘average’ or ‘weak.’ The ‘weak’ groups are deleted from the group array. Secondly, the retained groups with common buildings are organized to form intermediate groups according to their relations. After this step, the intermediate groups with common buildings are aggregated or separated and the final groups are formed. Finally, appropriate operators/algorithms are selected for each group and the generalized buildings are achieved. This approach is fully automatic. As our experiments show, it can be used primarily in the generalization of buildings arranged in blocks.

一种基于主特征的几何空间模糊推理方法

在几何空间中关于几何体之间不确定关系的推理是空间推理技术的主要研究方向,首先,提出了空间几何体的特征与主特征的概念,并证明了几何体特征之间的关系与几何体之间的基本关系的等价性;其次,引入了相邻、平行、从属、同线、线性等空间关系来描述空间几何体主特征之间的关系,并且将这几种空间关系通过隶属度函数模糊化;最后,基于主特征之间的空间关系,提出了一种进行空间模糊推理的方法,并给出了相应的应用实例,表明了所提出的方法是有效的、可行的。     

On the combinatorial complexity of fuzzy pattern matching in music analysis

In music analysis it is a common requirement to search a musical score for occurrences of a particular musical motif and its variants. This tedious and time-consuming task can be carried out by computer, using one of several models to specify which variants are to be included in the search. The question arises: just how many variants must be explicitly considered? The answer has a profound effect on the computer time needed. In this paper, recurrence relations and closed form analytic expressions are derived for the run time complexity of two models of fuzzy pattern matching for use in music analysis; each model assumes the existence of an atomic exact pattern matching operation. The formulae so obtained are evaluated and tabulated as a function of their independent parameters. These results enable a priori estimates to be made of the relative run times of different music searches performed using either model. This is illustrated by applying the results to an actual musical example.Richard E. Overill, BSc, PhD, C.Math, FIMA, C.Eng, MBCS, MIEE, is Lecturer in Computer Science at King's College London. His research includes the design, analysis, and practical implementation of algorithms on supercomputers. He has also given lecture-recitals on the keyboard music of the Tudor composers Thomas Tallis (1985), John Blitheman (1991), and William Byrd (1993).     

采用主成分分法评价水电开发对人地关系的影响

怒江水电开发将会对当地的经济、生态、环境、旅游、景观等多方面带来较大影响。对此,已开展了大量的研究,以定性研究主,定量研究较少,而且多以单一因素影响为主,综合研究较少。文中对已有人地关系研究成果分析,选取影响人地关系各方面有代表性的4大方面的13个指标,采用主成分分析法,就怒江水电开发对当地人地关系的影响定量地进行了综合评价分析。     

曹妃甸新区水资源供需预测分析

依据曹妃甸新区国民经济规划资料,对其未来需水量进行了全面预测,并结合水资源配置规划方案,对各水平年的水资源供需进行了预测分析,以期为今后曹妃甸新区合理开发和有效利用水资源提供了科学依据。     

加法可逆半环上的Fuzzy同余

定义了加法可逆半环上的Fuzzy同余关系，讨论了带有Fuzzy同余关系的加法可逆半环S的性质。证明得出：如果S是一个带有Fuzzy同余关系μ的加法可逆半环，则S关于μ的Fuzzy同余类做成一个加法可逆半环。给出了带有Fuzzy同余关系的加法可逆半环的同态性质。