全功能联结词集合的一个注记

本文对数理逻辑中的各种联结词所构成的集合进行了讨论,得到全功能联结词集合,指出了12个全功能联结词集合.其中,一阶全功能联结词集合2个;二阶全功能联结词集合7个;三阶全功能联结词集合3个;没有四阶及四阶以上的全功能联结词集合.     

逻辑运算在定性意义下的连续性

现有的模糊逻辑一般采用定量的方法描述和处理逻辑运算,不能全面满足逻辑运算的公理化框架。使用布尔代数上的运算解释逻辑运算的语义,可以极好地满足除连续性以外的公理的要求。基于新定义的距离函数概念,能够在定性的意义下较为合理地解释逻辑运算的连续性,从而说明定性方法具有十分清楚的直观背景。     

Data fusion in the wavelet domain by means of fuzzy aggregation connectives

Dual-domain classification analysis is proposed to identify pigments used in works of art studied by Raman spectroscopy and X-ray fluorescence spectrometry. By means of this methodology, Raman and X-ray fluorescence data are jointly processed by a high-level fusion approach. The system proposed aims to avoid the pre-processing stage and directly process raw data obtained from the instrument. The system is tested with spectra contaminated with background components of different shapes and intensities and with those with the background removed by line segment correction. The benefits of the approach were well demonstrated in a study of an ochre pigment classification.The approach is based on the main advantage of wavelet transform, which is multiresolution. Each spectrum is split into blocks, according to a specific frequency, to form a wavelet prism. Partial least squares-discriminant analysis (PLS-DA) is then applied to those blocks which contain the deterministic part of the signal and are not influenced by noise and background signal components. At the end, to obtain the final classification assignment, high-level data fusion of the classifications results (decision levels) obtained from PLS-DA analysis is done by means of fuzzy aggregation connective operators. Our study showed that fuzzy aggregation may be suitable for performing high-level data fusion on dual-domain data. This method can be automated so that classification can be rapid. It can handle classifications with different levels of difficulty and requires no prior knowledge of sample composition.     

话语联系语的语篇功能与英语写作教学

话语联系语在书面语篇的生成和理解中,具有语篇组构功能和认知引导功能。恰当使用话语联系语,有助于构建和凸显语篇话语单元间的逻辑语义关系,增强语篇连贯性,有效传递写作者的交际意图,从而减少读者理解的认知努力,并引导读者获取最大语境效果。在英语写作教学中,应引导学生准确、合理和多样化地使用话语联系语,以提高学生英语写作局部及整体连贯水平。     

Dominance in the family of Sugeno-Weber t-norms

The dominance relationship between two members of the family of Sugeno-Weber t-norms is proven by using a quantifier elimination algorithm. Further it is shown that dominance is a transitive, and therefore also an order relation, on this family of t-norms.     

PARTIALLY ORDERED CONNECTIVES

We show that a coherent theory of partially ordered connectives can be developed along the same line as partially ordered quantification. We estimate the expressive power of various partially ordered connectives and use methods like Ehrenfeucht games and infinitary logic to get various undefinability results.     

俄语无连接词复合句中标点符号的使用

俄语中无连接词复合句是一个相当复杂和难以掌握的句法结构，它与有连接词的复合句相对应，有其独特的联系手段，通过论述标点符号在无连接词复合句中的句法作用，分析其意义。     

话语联系语与大学英语写作教学

综合语篇连贯理论和关联理论，指出话语联系语在书面语篇的生成和理解中，具有语篇组构功能和认知引导功能。调查、分析地方性本科大学非英语专业学生在英语写作中话语联系语的使用情况，提出利用话语联系语提高学生英语写作水平的教学建议。