Identification of approximately duplicate material records in ERP systems

The quality of master data is crucial for the accurate functioning of the various modules of an enterprise resource planning (ERP) system. This study addresses specific data problems arising from the generation of approximately duplicate material records in ERP databases. Such problems are mainly due to the firm’s lack of unique and global identifiers for the material records, and to the arbitrary assignment of alternative names for the same material by various users. Traditional duplicate detection methods are ineffective in identifying such approximately duplicate material records because these methods typically rely on string comparisons of each field. To address this problem, a machine learning-based framework is developed to recognise semantic similarity between strings and to further identify and reunify approximately duplicate material records – a process referred to as de-duplication in this article. First, the keywords of the material records are extracted to form vectors of discriminating words. Second, a machine learning method using a probabilistic neural network is applied to determine the semantic similarity between these material records. The approach was evaluated using data from a real case study. The test results indicate that the proposed method outperforms traditional algorithms in identifying approximately duplicate material records.     

城乡规划法的价值演进

城乡规划法本质上与时空发展的状况具有耦合性,其范式是不断演进的.2008版城乡规划法是新时空精神的升华,内容框架和价值取向都有较大的创新.该法体现了利益主体的多元化,表现了从"计划"到"市场"的转型,反映了空间上的城乡统筹导向以及策略上的公共政策属性.同时,2008版城乡规划法在规划协作、规划体系等方面所存在的一系列问题,需要在实践中不断地解决和修正.     

城市住宅面面观--兼谈住宅个性化

实现小康社会,城市居住需划、建设、管理工作应该改变观念、调整规划、全盘考虑、制度政策,建立一个健全的机制,为国家、城市提供适应不同城域城市、不同城市区域、不同阶层的住房方案.文章还提出实现住宅个性化,改变城市形象的建议.     

一种产品生产规划模型

在对供应链中运输、库存、产品生产计划分析的 基础上,提出了一种解决厂家产品生产规划的混合整数规划 模型。     

基于层次分析法的土地储备方案的风险评估

多年来,随着我国土地储备制度的实施,全国土地储备项目也逐渐增多,金融行业支持土地储备的贷款渠道也迅猛发展。但由于土地市场的不确定性,土地储备也存在着一定风险,即当土地市场疲软时,极易因所收储的土地无法变现而导致金融风险的集中爆发。为此,文中针对土地储备风险进行研究分析,并建立数学模型进行风险评估。为对各项目方案进行风险评估,文中建立风险评估指数模型,利用该模型计算出风险评估指数wi,wi越大,代表该项目风险越大。研究发现,敏感性指标、项目投资总额估算和银行批复额度对风险评估指数的影响相对较大。     

混凝土搅拌站属机械设备冬季使用保养探讨

混凝土搅拌站的良好运作和它自身的保养维护是密不可分的,混凝土搅拌站的设备需要精心呵护,进而才能够最大限度降低机器的故障发生率和提高设备使用寿命。本文主要论述了搅拌站正常使用与保养过程中的注意事项、使用搅拌站柴油机过程中的注意事项、混凝土输送泵、混凝土搅拌车及装载机的使用注意事项及混凝土搅拌站负责人员要注意的清理保养项目。     

SOCIALLY ENGAGED MUNICIPAL STATECRAFT IN URBAN CHINA? The Shenzhen Biennale as Situated Planning Experiment

In this article I build on scholarship that calls for attention to the interventionist role of the municipality in steering development beyond growth to introduce the situated planning experiment as a mechanism through which municipalities practice socially engaged statecraft. The situated planning experiment foregrounds place-based innovative planning practices that incorporate the participation of citizen intellectuals who act as advocates for marginalized groups in China. I frame the Shenzhen UrbanismArchitecture Biennale (UABB) as a situated planning experiment, tracing its influence on the municipality's shift in approach to planning for urban village redevelopment. I show how the UABB is leveraged as an instrument for the municipality to connect social and economic objectives in development and how it presents differentiated opportunities for migrant residents to make viable urban lives. The article offers one possibility for theorizing the changing relationship between municipal entrepreneurialism and urban planning and critically evaluates the potential for socially engaged municipal statecraft, considering the Xi regime's focus on people-oriented urbanization. It represents one way in which studies of municipal statecraft can consider the variegated logics and forms of emerging post-growth state programmes and politics.     

城市土地储备量研究——以杭州市为例

1996年以来，土地储备机制在我国各地先后施行，它不仅涉及及土地收购，储备，出让的立法工作，而且还涉及资金流转过程，所以确定合理的土地储备量已迫在眉睫。本文在分析影响土地储备量大小的三大方面诸多因素作用关系基础上，拟定城市土地储备量大小的思路，即在相关因素评判检验的基础上，建立开发项目土地供应量与建成区面积，房地产开发量二元线回归方程，运用SPSS软件推算出土地储备量的大小。     

海域"双评价"的实践与应用——以温州为例

"双评价"(资源环境承载能力评价和国土空间开发适宜性评价)作为构建国土空间基本战略格局的科学基础尚未延伸至海洋层面。海域"双评价"作为沿海地区国土空间规划工作的重要内容,存在理论缺失、技术方法不完善等问题。文章以海域功能理论为基础,从人类海洋活动出发,探索海域"双评价"的实践方案,建立"双评价"到海域利用优化的科学逻辑,指出基于"双评价"的海域利用冲突识别是海洋空间规划的关键。以温州市海域为例,基于本底资源从空间、渔业、环境和生态四方面进行单要素承载力测算,以此获得海域综合承载力作为监测预警的标志。选择渔业用海和建设用海两类典型用海进行适宜性分析,确定海洋空间利用的最优布局,判断海域利用空间冲突。结果表明:温州市沿海区县的海洋承载能力差异较大,资源环境分化严重,龙湾区与洞头区渔业资源开发超载;乐清市与龙湾区的海洋环境超载。渔业用海适宜面积占比较低且分布于远海地带。不适宜区域集中于瓯江、飞云江、鳌江三江入海口岸海域。建设用海适宜区域集中于近岸海域,远海区域距离城镇与交通较远,自然条件中水深较深,成本较高。苍南县和平阳县海域利用冲突较少,用海布局合理。乐清市、龙湾区与洞头区存在显著冲突。"双评价"的实践与应用是指导沿海地区海洋经济发展与海洋资源保护的关键,能够综合识别海洋利用的冲突,有助于沿海地区海洋空间规划。     

空间规划整合与协调问题研究--以山西省为例

加快空间规划机制创新,促进各种空间规划的整合与协调,构建新型的空间规划体系是山西省国家资源型经济转型综合配套改革和促进城乡区域协调发展的重要任务。文章在梳理我国空间规划问题、实践探索基础上,以山西省为例,提出了完善空间规划的基本思路：遵循“强化龙头,横向协调;完善层次,纵向指导”路径,建立以主体功能区规划和市县域城乡总体规划为基础的空间规划体系框架,形成全域覆盖、城乡统筹、功能清晰、横向协调、上下衔接的空间规划体系。促进规划协调的主要行动包括：完善规划编制的协调衔接机制,实现规划目标、标准、内容、信息平台对接;完善规划实施机制,建立五年规划和年度实施计划制度;推进规划管理机构改革和管理机制创新,建立统一的规划管理体制和全覆盖的城乡规划监管体系。