Time-critical interactive dynamic influence diagram

Multiagent time-critical dynamic decision making is a challenging task in many real-world applications where a trade-off between solution quality and computational tractability is required. In this paper, we present a formal representation for modelling time-critical multiagent dynamic decision problems based on interactive dynamic influence diagrams (I-DIDs). The new representation called time-critical I-DIDs (TC-IDIDs) represents space-temporal abstraction by providing time-index to nodes and the model is defined in terms of the condensed and deployed forms. The condensed form is a static model of TC-IDIDs and can be expanded into its dynamic version. To facilitate the conversion between the two forms, we exploit the notion of object-orientation design to develop flexible and reusable TC-IDIDs. The difficulty on expanding TC-IDIDs is to select a proper time sequence to index nodes in the condensed form so that the expanded TC-IDIDs can be solved efficiently without compromising the quality of the policy. For this purpose, we propose two methods to build the condensed form of TC-IDIDs. We evaluate the solution quality and time complexity in three well-studied problems and provide results in support.     

Independence of axioms for fourgonal families

We show, by means of (counter)examples, that the axioms for fourgonal families (as used to construct elation generalized quadrangles) are independent. Received 22 September 2000.     

The Logic of Organizational Markets: Thinking Through Resource Partitioning Theory

Resource partitioning theory claims that Increasing concentration enhances the life chances of specialist organizations. We systematically think through this theory, specify implicit background assumptions, sharpen concepts, and rigorously check the theory's logic. As a result, we increase the theory's explanatory power, and claim—contrary to received opinion'that under certain general conditions, resource partitioning and the proliferation of specialists can take place independently of organizational mass and relative size effects, size localized competition, diversifying consumer tastes, increasing number of dimensions of the resource space, and changing niche widths. Our analysis makes furthermore clear that specialist and generalist strategies are asymmetric, and shows that not concentration enhances the life chances of specialists but economies of scale instead. Under the conditions explicated, we argue that if scale economies come to dominate, the number of organizations in the population increases, regardless of the incumbents' sizes.     

G(o)del逻辑和L*逻辑中公式的真度分布

研究了G\"{o}del逻辑系统和$L^\ast$逻辑系统中公式的真度的分布情况. 结果表明在G\"{o}del逻辑系统和$L^\ast$逻辑系统中含有$n$个原子命题的公式($n$元公式)的真度集分别为$\{\frac{i}{(n+ 1)!}\vert 0 \le i \le (n + 1)! ,i \in N\}$和$\{\frac{i}{(n + 1)!}\vert 0\le i \le 2^n(n + 1)!,i \in N\}.$ 进而得到了G\"{o}del逻辑系统和$L^\ast$逻辑系统中公式的真度集均为[0,1]上的有理数集. 最后,还给出了两系统中公式的相似度,伪距离的分布情况.     

模糊影响图评价算法在供应链金融信用风险评估中的应用

传统的银行信贷模式风险评价专注于个体企业的财务数据.供应链金融新融资模式下的信用风险评价不同于传统的融资模式风险评价,它的评价范围更宽,不确定性因素更加复杂.在分析供应链金融模式的信用风险评价体系的基础上,结合模糊集和影响图理论建立了模糊影响图评价模型,对评估中难以量化的问题进行模糊处理,对变量之间的模糊影响关系进行分析,最后计算出信用风险概率分布.方法定性与定量相结合,为供应链金融新模式下的风险评估提供了一种新思路.     

On Ocneanu's theory of double triangle algebras for subfactors and classification of irreducible connections on the Dynkin diagrams

We give an exposition of Ocneanu's theory of double triangle algebras for subfactors and its application to the classification of irreducible bi-unitary connections on the Dynkin diagrams _An$A_n$, _Dn$D_n$, _E6$E_6$, _E7$E_7$ and _E8$E_8$. More precisely, we give a detailed proof of the complete classification of irreducible K–L$K–L$ bi-unitary connections up to gauge choice, where K and L   represent the two horizontal graphs which are among the A–D–E$A–D–E$ Dynkin diagrams. The result also provides a simple proof of the flatness of _D2n$D_{2n}$, _E6$E_6$ and _E8$E_8$ connections as well as an easy computation of the flat part of _E7$E_7$ as an application.     

多总体演化博弈在煤炭生产安全管理中的应用

煤矿安全管理涉及多方利益相关者群体,而利益群体内部又存在不同的分类.依据演化博弈理论,针对安全管理中利益群体中子总体对成功主体的模仿行为,建立多总体复制子动态博弈模型,再利用动力系统相位图分析对煤矿安全管理相关各方的行为进行研究,分析政府主管部门监管力度、企业职工技术水平对煤矿安全管理效率的影响,以及惩罚激励、安全培训等措施在企业安全管理中的作用.     

The role of the phase quasiequilibrium in the reaction system chlorotriorganosilane—water—acetone

On the basis of analysis of product composition in the hydrolytic polycondensation (HPC) of chlorotriorganosilanes, the parameters of the kinetic and the diffusion field, the zone of the reaction, and the region of the conodes of the phase diagrams are determined. It is suggested that the conodes correspond to a phase quasiequilibrium, which defines the composition of the reaction products. The results of this investigation confirm the previously discovered features of HPC of dichloromethylphenylsilanes: the formation of the siloxane bond during the hydrolysis of chloroorganosilanes by water mainly occurs in the organic phase of the system and proceeds as the heterofunctional polycondensation of the reaction products with the starting chloroorganosilanes. The role of the phase quasiequilibrium consists of the creation of a field of reagent concentration, based on which one can control the composition of the reaction products.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 7, pp. 1222–1226, July, 1994.     

双光子三维微细加工的分辨率研究

为了改善双光子加工的成型精度和微器件的质量，提高加工系统的分辨率是十分重要的。根据自由基类光聚合材料双光子加工分辨率的理论分析，提出等光强面概念，并在此基础上讨论了激发光强与系统加工分辨率之间的关系。通过不同光强条件下双光子三维加工固化单元的实验，验证了等光强面和系统分辨率之间的对应关系，并分析了出现微小差异的原因。根据上述理论模型，可以估算一定实验条件下系统可实现的加工分辨率，优化加工工艺参数。最后给出了部分微器件的成型结果。