Product knowledge documents retrieval based on hybrid semantic model

An approach based on hybrid semantic model (HSM) was proposed to the solve problem raised in the retrieval process of product knowledge documentation. It expands the traditional user query to a semantic set composed of user preference, context and query, while representing the knowledge documents and user interest with an ontology based fuzzy concept. The leaves in the ontology are selected as components of the document concept vector with the weight determined by the depth of the concept in the ontology graph, the quantity of the information contained, and occurrence in the document and the whole repository. Furthermore, ontology is used to express context and query, and to construct a user preference model. Different relevancy computation methods are adopted for different retrieval models. The semantic similarity between query or user preference and documentation is computed by cosine method. The semantic similarity of context is estimated by the concept distance in the concept hierarchy. Finally, the method is shown by experimentation to be more effective than the classic vector space method.     

基于本体的水产养殖领域知识表示研究

针对水产养殖企业流程各异,品种不一,生产过程关键控制点不同导致采集的信息异构、难以有效共享和缺乏共同理解等问题,采用本体作为知识的表示方法,根据水产养殖领域的特点提出了一种新的领域本体的构建方法,将构建过程划分成规范化、概念化和本体实现3个阶段,并组成一个本体构建迭代流程。这种本体构建方法易学、易用,减少了系统开发的工作量,为解决本体的快速构建问题提供了一个新的思路。     

面向顾客需求的在线匹配定制方法

在线定制的产品涉及到设计、生产等复杂环节,所以定制品的方案设计及其可行性等信息的快速反馈是实施在线定制的难点。提出基于CBR（case-based reasoning）的匹配定制方法,减少定制时间避免不必要的重复设计。首先运用层次分析法和质量功能展开确定需求工程设计权重;结合模糊数学修改高斯函数,构造出一种具有接近客观现实、方便处理、区分性强等优点的匹配度计算方法;利用Beta分布构建机器学习方法,得到随市场偏好变动而调整的匹配度阀值。其次针对顾客对不同产品的价格敏感度不同,引入调节因子修正最终匹配值对比匹配阀值从而获得定制产品的设计方案及可行性并反馈。最后以电冰箱定制为例,证明该方法有效且易于实施。     

云制造环境下设计需求与服务匹配模式算法

针对云制造环境下设计需求与设计服务的特性,构建含有属性集、关系集和操作集的设计需求与设计服务数据结构。建立一种云制造环境下的设计需求与设计服务输入、分解、组合和输出匹配模式,研究了该模型的原子匹配、扩展匹配和产品匹配。针对匹配过程中输入、分解、组合和输出量化问题,采用语义概念相似度和循环递归设计结构匹配算法实现设计需求与设计服务智能匹配。最后,通过实验验证,表明该模式与算法的有效性和可行性。     

Efficiency of product collaborative innovation design based on the attribute and matching task

The degrees that the design agent capacity matches the design task are an important factor affecting the efficiency of collaborative product innovation design. The classification and quantitative calculation of different types of design agent capacity combination is carried out after the characteristic of design agent is analyzed. An efficiency model whose goal is the shortest entire time is constructed based on the definition of task attribute,and then the solving method of efficiency model are designed based on particle swarm optimization algorithm. The collaborative product innovation design of cabin is taken as an example to prove that considering the matching agent attribute with task can shorten the design cycle and improve design efficiency.     

Task decomposition and resources allocation of product collaboration innovative design

To deal with the complexity problems of design tasks decomposition and allocation in the process of product collaborative innovation, a task decomposition model based on mapping level function, structure and task and fuzzy search and matching collaborative partners is proposed by considering the dependencies between the design tasks and the design capacity constraints of innovative subjects. Then on the basis of studying the classification and attributes of design resource, a design resources allocation model with resource use threshold is established to compensate the lack of resource allocation by the priority strategy for design tasks, and the simulation modeling for task-resource allocation based on the time colored Petri net is carried out. Finally, a product collaborative innovation design R & D case of a certain brand phone is imported to verify the effectiveness of the proposed model.     

Design of Manufacturing System for Business

In the new environment, product development is the core of product innovation and quickly responsive to the market for the enterprises. The speed and effectiveness of development is the key factor to the success of product development. The design for business is the key technique in achieving the effectiveness of product development. And manufacturing system is the bridge between business and products. The design method of facing business is discussed, and the design flow and content of manufacturing system supporting facing business are pointed out. At the same time, the author also sets forth the construction definition, the construction design and the detailed design of the manufacturing system. So the design flow of manufacturing system facing business is established.     

基于本体推理和数据挖掘的良好农业规范专家系统

针对良好农业规范(good agricultural practices,GAP)标准内容复杂,不易被农业生产者准确使用的问题,将本体推理和数据挖掘技术相结合,构建了良好农业规范专家系统,实现标准知识查询和GAP控制点推荐等功能,更好的帮助生产者理解和使用GAP。系统构建过程中,采用本体知识表示方法构建GAP标准知识库,通过解析“良好农业规范生产和认证信息服务平台”的GAP电子检查表记录,对挖掘过程中涉及的关联规则算法进行分析和改进,挖掘分析了用户对控制点使用的偏好。设计了控制点评价模型,实现了GAP控制点的择优推荐。系统基于MVC模式,设计为3层体系架构。通过测试应用,用户能够准确和容易的使用GAP标准。     

Application domain ontology to the construction of FDI effect evaluation system model

As a semantic foundation, ontology is extensively applied in areas such as information retrieval, artificial intelligence, semantic web and knowledge management and so on. This study adopts the ideas of reuse in software system model to combine the construction of an evaluation system and ontology against the static drawbacks in current construction of an evaluation system. It takes advantage of the concepts in domain ontology to make a domain stipulation and model mapping. Besides, it is the first time to apply the concepts to the construction of FDI evaluation system. It has important significance for socio-economic areas and it provides exploratory methods and routes for how component library can be reasonably adaptive and assemble the required components.     

Customer knowledge identify and application in collaborative product creative design

Customer involvement in product innovation can improve design efficiency effectively. Identifying customer knowledge quickly and applying it into the process of product design can enhance the product design capability of manufacturing enterprise. Rough set theory is used to simplify the variety of customer knowledge and identify the important customer knowledge. In order to select the customer with great contribution, a customer knowledge contribution measurement model based on Fuzzy Analytic Hierarchy Process and Shapley (FAHP S) is proposed to determine the importance weights of customer knowledge and member influence weights in group decision. An example is presented to illustrate the effectiveness of this model.     

Value Innovation Method in Product Scheme Cost Design

Product design now has a significant influence on the profitability of a business. Enterprise simulation can not only overcome the limitations of current product scheme cost evaluation methods , but also support Product Scheme Cost design of Dynamic Enterprise. Product Scheme Cost Design basing on Value Innovation Method aim at value increase , and use Enterprise simulation as Product design tools. To evaluate different design options, a series of runs are performed in Enterprise simulation system for each design variant. In this way , Product design face on enterprise business. This paper focus on value chain,and use it in Product design, provide a new way for Product design of Dynamic Enterprise.     

Design Quality Review System Based on Networks

Design quality review of product is an effective method to improve product quality. The inefficient traditional design review is not accord with modern yield requirement. The multiple system truss of design review is constructed based on the primary characteristics and the requirements of design review and the network technology. The mode of communication between client and server and the flow of design review system based on networks are expatiated. According to different phases of reveiw,the universal quality index system for evaluating the product design is established and the design review system based on networks is realized by NetMeeting.     

基于QFD和TRIZ集成的油辣椒灌装机创新设计

针对概念设计阶段质量功能展开(QFD)与发明问题的解决理论(TRIZ)作用特点的不同,提出了一种集成QFD与TRIZ理论的产品创新模型。首先运用QFD的质量屋分析用户需求,确定设计冲突,然后结合TRIZ理论进行描述,得出问题的解决方案,并对模型中多目标问题的求解做了一定的改进研究。最后将该模型用于油辣椒灌装机的创新设计,较好地解决了普通灌装机存在的不足,验证了模型对设计过程指导的有效性。     

Matching Performance Analysis of the Motorcycle

The vibration is a great obstacle of motorcycle enterprise development. To solve this problem, matching performance technology of the motorcycle is presented in the researches on the general design of the motorcycle. Based on finite element method and vibration theory, matching performance of the motorcycle has been studied, and the international general software MSC. PATRAN/NASTRAN has been used to analyze the best match between the engine and the frame of a type of motorcycle. An effective method has been formed, which can solve the problem of the vibration of the motorcycle essentially, and shorten the development period of motorcycle, reduce the development cost. It has very important theoretical meaning and great value in engineering application for motorcycle enterprise to design products.     

利用计算机模拟分子对接技术探究粮食中黄曲霉毒素的毒理效应

黄曲霉毒素是一类化学结构类似的小分子化合物,均为二氢呋喃香豆素的衍生物,主要存在于土壤、动植物和各种坚果中,是霉菌毒素中毒性最大,对人类健康危害极为突出的一类霉菌毒素,而黄曲霉毒素的毒理机制始终不是很明确。计算机分子对接是模拟受体和底物之间通过能量匹配和几何匹配而相互识别的过程,其被广泛运用于虚拟筛选活性物质以及初步判断分子活性和毒性等领域,并对我们进行实体分子活性毒性试验起到了重要的指导作用。利用计算机分子对接软件Discovery Studio 3.1client,将6种常见黄曲霉毒素分子B1、B2、M1、M2、G1、G2与其具有强亲和性的蛋白进行虚拟对接实验,而这些蛋白在细胞凋亡、激素代谢、免疫抑制以及消化系统功能方面有重要的作用。通过本实验能够初步模拟黄曲霉毒素分子毒性作用位点,对于其毒理机制研究有重要的辅助作用。     

A CAD System for Extrusion Aluminum-type Materials

A classifying_coding system in point of extrusion aluminum_type materials based on the statistics and analysis of large numbers of extrusion aluminum_type materials section drawings.According to the Group Technology principle,using the variant design technique,a CAD system has been developed and used in a extrusion aluminum_type materials factory.The system can not only greatly shorten the products design time and reduce the product cost,but also rapidly retrieve extrusion aluminum_type materials section drawings.     

Modular Design Base on Variety Theory

Variety Design not only support to short down development time, and cut down development cost, but also support to response marketing rapid, is a kind of modern design theory which apply on Mass Customization. In some way, Variety Design is a kind of design that integrates standard design and modular design, and Variety Design object is high cost and universal parts that among platform. The authors discuss the modular design role and the different between integral design, promote the method and the step of modular design, so change the low cost parts design, and give an new product based on the platform. Based on this model, they not only save the cost of develop new product, but also save time, achieve advantage which Mass produce process.     

云制造资源语义描述和服务匹配策略

针对云制造环境下资源语义描述和服务匹配问题,在充分考虑用户个性化需求与制造资源异构性的基础上,分析了云制造资源描述和服务匹配的难点,利用规范化描述的特点,将制造资源描述问题转化为Web语义描述问题,提出一种通用的制造资源语义描述框架。结合4种相似度算法,设计了阀值和权重,提出了基于过滤器的服务匹配策略。实验结果证明了该策略和算法的有效性和可行性。应用这4种相似度算法能够有效缩小匹配的规模,提高了服务的查找效率与准确度。