Reconstructing Urban Politics with a Bourdieusian Framework: The Case of Local Low‐Income Housing Policy

This research aimed to reconstruct a local urban politics and develop a meso–micro‐level model of urban politics through a case study, drawing on a Bourdieusian relational framework. To this end, it investigated the case of local low‐income housing policy — inclusionary zoning — in Madison, Wisconsin, USA. It historicized the path of the local low‐income policy issue through document analysis and qualitative media content analysis. Through multiple analyses, the study revealed that urban politics consists of complex interlinkages among stakeholders with shared values or interests from different social domains, created in order to dominate the policy issue. The study further investigated, on the basis of Bourdieu's concepts of capital and habitus, what elicited different political strategies from key community leaders.     

基于格规约辅助的MIMO系统GMD-TH预编码方案

现有的GMD-TH(Geometric Mean Decomposition-Tomlison Harashima)预编码方案在发射 端未对获得MIMO（Multiple-Input-Multiple-Output）信道增益矩阵优化,因而 其误码率和分集增益无法获得令人满意的效果。为此,在原有MIMO系统GMD-TH预编码的基础 上,提出一种基于格规约辅助的GMD-TH预编码方案。该方案采用基于格规约的算法对信道 矩阵进行优化,经过优化的信道矩阵其列向量之间具有更好的正交性并且向量的长度更短, 并且采用优化的信道矩阵提高了GMD-TH预编码MIMO系统的分集增益。仿真结果表明：相比于 传统的线性预编码方案,该预编码方案有效地提高了MIMO分集增益,相同误码率下,信噪 比降低3 dB以上,具有实用价值。     

基于格理论的装备保障信息网络快速身份认证方案

量子算法和量子计算机对装备保障信息网络的认证方案已构成严重的潜在威胁。针对当前装备保障信息网络身份认证方案无法抵抗量子计算机攻击、认证效率相对较低的问题,引入格理论的本原格抽样算法和双峰高斯抽样技术,提出了装备保障信息网络在量子环境下安全且快速的身份认证方案,给出了方案的正确性、安全性的理论证明以及方案运行效率的比较分析。结果表明,基于随机预言机证明模型,该方案在小整数解问题困难性假设下达到了适应性选择身份和选择消息攻击的存在性不可伪造性;在保证安全的前提下,新方案在私钥提取阶段和身份认证阶段的运行效率均高于已有的几个同类格基身份认证方案。这为提高我国装备保障信息网络安全认证能力提供了新的思路和方法。     

Conceptual Knowledge Markup Language: An introduction

Conceptual Knowledge Markup Language (CKML) is an application of XML. Earlier versions of CKML followed rather exclusively the philosophy of Conceptual Knowledge Processing (CKP), a principled approach to knowledge representation and data analysis that “advocates methods and instruments of conceptual knowledge processing which support people in their rational thinking, judgment and acting and promote critical discussion”. The new version of CKML continues to follow this approach, but also incorporates various principles, insights and techniques from Information Flow (IF), the logical design of distributed systems. Among other things, this allows diverse communities of discourse to compare their own information structures, as coded in logical theories, with that of other communities that share a common generic ontology. CKML incorporates the CKP ideas of concept lattice and formal context, along with the IF ideas of classification (= formal context), infomorphism, theory, interpretation and local logic. Ontology Markup Language (OML), a subset of CKML that is a self-sufficient markup language in its own right, follows the principles and ideas of Conceptual Graphs (CG). OML is used for structuring the specifications and axiomatics of metadata into ontologies. OML incorporates the CG ideas of concept, conceptual relation, conceptual graph, conceptual context, participants and ontology. The link from OML to CKML is the process of conceptual scaling, which is the interpretive transformation of ontologically structured knowledge to conceptual structured knowledge. This revised version was published online in August 2006 with corrections to the Cover Date.     

Real option valuation of public sector R&D investments with a down-and-out barrier option

This paper presents a real options approach for valuing public-sector research and development projects, using a down-and-out barrier option. Specifically, it considers the potential savings to the tax payer for investing in technology to be purchased by a national government. The valuation is performed with stretched trinomial lattices. Government-driven demand for this technology is equated with the underlying asset, and valuation measured in terms of potential government savings. Two variables, volatility of demand for the technology and unit cost, are treated as uncertain. A Monte Carlo simulation is performed to understand the effects of these variables on the valuation. Other variables are estimated, and a parametric analysis is performed to understand the effects of these variables. To illustrate how this approach could be used, the development of a new sensor, to be used in large networks that track greenhouse gas fluxes, is considered as an example.     

Nash implementation with an infinite-dimensional trade space

This paper deals with the problem of implementing the Walras correspondence via Nash equilibria, in exchange economies with infinitely many commodities and finitely many households with possibly non-ordered preferences. We explicitly construct a feasible mechanism enjoying some features, which have natural economic meanings. Under a fairly weak boundary condition, this game fully implements the Walras equilibria. If this condition is not fulfilled, our mechanism nevertheless implements the constrained Walras equilibria. Received: 11 December 2003, Accepted: 29 July 2005 JEL Classification: D41, D43, D51 We thank (without implicating) Prof. Jean-Marc Bonnisseau and Cuong Le Van for helpful comments. The views expressed in this paper reflect those of the authors and not necessarily those of Calyon.     

知识企业的主导生产要素:知识资本——基于"概念格"理论的推论

伴随着知识经济时代的到来,知识资本已经替代了财务资本成为制约知识企业生存与发展的主导性生产要素,并成为知识企业生产及其效率的决定性因素。文章旨在以“概念格”理论为基础,对知识企业生产经营活动的主导生产要素进行进一步的分析和探索,以证明知识经济时代知识企业的主导生产要素是由不同经济时代的主导生产要素逐步演化而来,比起工业经济时代的主导要素已发生了根本性变革,为知识企业生产要素投入的有效组合分析、知识资本的确认与计量研究等提供理论支持。     

Monitoring trends of technological changes based on the dynamic patent lattice: A modified formal concept analysis approach

The strategic importance of monitoring technological changes is highlighted given the ever faster pace and increasing complexity of technological innovation. In this respect, patent citation analysis has been the most frequently adopted tool among others. However, patent citation analysis is subject to certain drawbacks that stem from only consideration of citing-cited information and time lags between citing and cited patents. This study proposes a formal concept analysis (FCA)-based approach to developing a dynamic patent lattice that can analyze complex relations among patents and monitor trends of technological changes. The FCA is a mathematical tool for grouping objects with shared properties based on the lattice theory. The distinct strengths of FCA, vis-á-vis other methods, lie in structuring and displaying the relations among objects from a massive amount of data. For the purpose of technology monitoring, the FCA is modified to take into account time periods and changes of patent keywords. A patent context is first constructed with the aid of domain experts and text mining technique. Two types of dynamic patent lattices are then developed by executing the modified FCA algorithm. A case study of laser technology in lithography for semiconductor manufacturing shows that the suggested dynamic patent lattice has considerable advantages over conventional patent citation maps in terms of visualization and informative power.     

自由正交模格FMO2(n)的自同构群

先讨论一般正交模格簇的次直积的自同构群与自同构群的次直积的关系,再通过自同构映射的性质给出了正交模格MO2的自同构群,利用M.Haviar,C.B.Wegener等人研究的成果:自由正交模格FMO2(n)的分解形式FMO2(n)≌FB(n)×(MO2)φ(n),得到了自由正交模格FMO2(n)的自同构群的分解式:AutFMO2(n)≌AutFB(n)×(Aut(MO2))φ(n),从而解决了自由正交模格FMO2(n)的自同构群的结构问题.     

寄售模式下商业价值影响因素：基于格子铺视角的实证研究

运用文献研究、问卷调查和数理统计分析法,对格子铺这一营销实践中的新型零售业态进行了理论与实证的研究。通过因子分析、相关分析获取了格子铺商业价值的衡量指标（进店率、销售毛利和租格率）与顾客价值、格主价值、铺主价值三个维度之间的关系。用现实中的影响因素来解释了三个主要的利益主体价值维度。最后,提出了提升以格子铺为代表的寄售模式商业价值的建议。