A real-time food safety management system for receiving operations in distribution centers

Food safety plan is being promoted in the food industry by the Hong Kong Government as a preliminary quality control tool. However, it appears to be a challenging task for Distribution Centers (DC) that handles food inventory since most of them are lack of knowledge and know how technology to manage information in a real time base. This paper proposes a Radio Frequency Identification based Food Operations Assignment System (RFID-FOAS) to help DC facilitates the food safety control activities in receiving areas by generating a proper safety plan. The system has adopted the Radio Frequency Identification (RFID) technology and the Case-Based Reasoning (CBR) technique to facilitate the inventory data-capturing process and assist in formulating decisions, respectively. The developed system aims to help reduce the difficulties in safety plan development using a knowledge-based expert system. The significance and contribution of RFID-FOAS in the context of managing the inventory quality in DC for safety plan development is demonstrated through the adoption of the system in a Hong Kong-based logistics company. The generated results show that the decision-making process of the safety plan development is facilitated. Moreover, the real-time data capturing nature of RFID technology has further improved the efficiency and timeframe requested for the actions. With the support of RFID-FOAS, the data capture system and the decision-making time is minimized. As a result, inventory quality and customer satisfaction level are significantly improved.     

A real-time risk control and monitoring system for incident handling in wine storage

Due to the fact that wine is highly sensitive to storage conditions such as temperature and humidity, it is a challenging task for a regional distribution hub to provide reliable wine storage facilities for maintaining wine quality during storage. This is especially true when an incident occurs unexpectedly that violates the criteria of suitable storage conditions. Improper incident handling and storage conditions may cause damage to the taste of wine, resulting in depreciation of the wine’s value. Therefore, controlling and monitoring risk in real-time during wine storage is critical to providing a quick response to prevent the wine quality from deterioration. In this paper, a RFID-based risk control and monitoring system (RCMS), which integrates radio frequency identification (RFID) technology and case-based reasoning (CBR), is proposed for monitoring real-time physical storage conditions and for formulating an immediate action plan for handling incidents. In the retrieval process of the CBR engine, genetic algorithms (GA) are applied to search for case clusters by considering the best combination of multi-dimensional parameters. With the help of RCMS, a shortlist of critical control actions, possible causes of incidents and corresponding actions can be generated to reduce the risk of deteriorating wine quality and possible compensation costs being incurred, while customer satisfaction can be maintained.     

案例决策技术及案例决策支持系统研究综述

案例是人类直觉、逻辑和创造性三种思维的综合表现形式,案例推理是人脑类比学习的模仿者,在知识难以获取的应用领域取得了丰硕的成果.从认知学角度探讨了案例推理的逻辑合理性,研究了案例智能决策技术;针对决策支持系统研究与开发中出现的系统柔性差等核心问题,提出了以案例推理为基础的案例智能决策支持系统,该系统可以很好地实现决策支持.对此进行了深入研究,最后探讨了该系统的研究与发展的方向.     

常识知识在事例修改中的应用

事例改写一直是基于事例推理(Case—Based Reasoning，CBR)方法中的难点之一。用知识的观点来诠释基于事例推理，细分了在CBR中所用到的知识，以银行贷款业务为例探讨了常识知识在事例修改中应用的应用方法——综合得分法，并探讨了相应的常识知识的存储。     

CBR方法在谈判中的研究与应用

NSS的辅助决策技术很多,CBR方法是很有效的一种。考虑增强案例推理系统的性能,论文在案例表示和组织方面展开研究。用ID3算法构建决策树,将谈判产生的历史案例通过分类形成知识库。在此基础上进行案例匹配,效率将有所提高。最后,通过一个应用实例,说明了该方法的可行性。     

基于混合果蝇优化算法的选址-库存联合优化策略

针对装备维修保障仓库系统运营费用高、仓库点位布局不合理、备件库存结构不合理等问题,建立以多品种联合补货问题为基础的装备维修备件仓库选址-库存控制决策联合优化模型,模型可用于求解仓库的开设位置、维修活动需求点的指派情况、仓库补货时间以及库存水平等.根据模型的结构特点,利用多种群协同进化的方法改进传统果蝇优化算法的位置更新方式,设计一种内外两层搜索策略的混合果蝇优化算法,外层搜索策略作为算法的主程序用于搜索仓库选址决策变量,内层搜索策略采用改进的RAND算法用于搜索库存控制决策变量.仿真结果表明,混合果蝇优化算法具有良好的求解效率,能够确保库存系统在一定服务水平的基础上有效降低库存运营总成本.     

Knowledge engineering issues in developing a case-based reasoning application

Case-Based Reasoning (CBR) has emerged from research in cognitive psychology as a model of human memory and remembering. It has been embraced by researchers of AI applications as a methodology that avoids some of the knowledge acquisition and reasoning problems that occur with other methods for developing knowledge-based systems. In this paper we propose that, in developing knowledge based systems, knowledge engineering addresses two tasks. There is a problem analysis task that produces the problem representation and there is the task of developing the inference mechanism. CBR has an impact on the second of these tasks but helps less with the first. We argue that in some domains this problem analysis process can be significant and propose an iterative methodology for addressing it. To evaluate this, we describe the application of case-based reasoning to the problem of aircraft conflict resolution in a system called ISAC. We describe the application of this iterative methodology and assess the knowledge engineering impact of CBR.     

从软件质量控制到软件质量保证

本文阐述了在嵌入式系统和在其他执行关键任务的软件中由传统的软件质量控制技术到前涉的质量保证方案的转化：软件在每一个产品和每一个组织中所发挥的作用日益重要。近年来,执行关键任务的应用系统的数量以指数速度增长。这些系统要么失败后损失巨大（空中交换管制系统和其他生命支持产品）。要么纠正费用高（便携式电话和其他用户产品）。为嵌入式系统设计的软件在更多的时候属于“执行关键任务”的范畴,而对嵌入式系统的需求也在继续升温,因此对前涉的质量保证的需求要高于以往任何时候。本文把质量控制到质量保证的转化分为两个阶段：1质量评估（第一阶段）：在开发周期的早期,即在软件到达用户之前,甚至在测试之前识别和排除软件故障,同时提供客观定量的质量评估。2质量保证（第二阶段）：在作更改的时候,通过精确的影响分析,采用强制执行编码标准和防止新错误出现的方法来防止错误进入代码基数。     

基于Simulink的库存系统的动态建模与仿真

该文首先通过将随机的、不可控的需求控制问题转化为安全库存设置问题的方法,建立了库存系统的仿真模型。然后基于MATLAB／Simulink软件对多组策略值进行仿真,动态实时模拟了（t,s,S）策略的库存系统的入库、出库时机和数量。最后选择库存总费用的日平均值最低的一组为最优库存策略,从而使企业能够合理规划和安排仓库及各类设施、资源,文现库存成本的最小化。仿真结果清晰、直观,为现代经营者做出正确的库存决策提供了有价值的参考。     

A fuzzy quality control-decision support system for improving operational reliability of liquid transfer operations in laboratory automation

Quality control in liquid transfer operations can eliminate false assay results due to transfer failures, monitor the stability of laboratory equipment, provide baselines for continuous improvement, and enable automatic recovery actions for a number of fault conditions. This paper describes the work done to add real-time quality control capability in liquid transfer operations on a closed-loop controlled MEMS based liquid transfer device.Real-time data acquisition enables the interpretation of system variables. Using fuzzy logic as a decision support tool, an overall quality metric and failure mode is deduced from these variables for each channel per operation. Detection of ordinary fault conditions like clogged tips or unexpected empty source wells can activate automatic recovery actions without human intervention, leading to 24/7 utilization of an automated laboratory system. Exported quality data can be used for bio-informatics data analysis as well as documentation for regulatory agencies.     

The optimal retailer's ordering policies with trade credit financing and limited storage capacity in the supply chain system

The traditional economic order quantity model assumes that the retailer's storage capacity is unlimited. However, as we all know, the capacity of any warehouse is limited. In practice, there usually exist various factors that induce the decision-maker of the inventory system to order more items than can be held in his/her own warehouse. Therefore, for the decision-maker, it is very practical to determine whether or not to rent other warehouses. In this article, we try to incorporate two levels of trade credit and two separate warehouses (own warehouse and rented warehouse) to establish a new inventory model to help the decision-maker to make the decision. Four theorems are provided to determine the optimal cycle time to generalise some existing articles. Finally, the sensitivity analysis is executed to investigate the effects of the various parameters on ordering policies and annual costs of the inventory system.     

基于案例推理的应急预案管理研究

将案例推理技术应用到应急预案管理系统中.研究探讨了实现预案管理系统的各个流程:预案表示、预案存储结构、预案检索、预案调整和系统学习,其中预案检索部分研究了采用层次分析法确定预案的属性权重系教的方法.     

一种基于本体和CBR的电子政务项目审批决策支持系统

分析了将本体与CBR方法结合开发电子政务项目审批决策支持系统的优点,给出了该系统的总体框架和决策支持流程,着重介绍了基于本体的电子政务项目案例的组织和表示方法以及引入本体后案例检索过程中的相似度计算方法。实验结果表明,利用本体对项目案例包含的知识进行提取和表示,再利用这些知识对案例进行组织和检索,有效地提高了案例检索的查准率和查全率。     

机械制造业仓库实时管理方法

通过对以往领料流程和采购入库的研究分析,提出了仓库实时管理的概念.在整个领料、发料、仓库核销及入库的过程当中,运用无线条码扫描技术,大大减少了人为因素,避免了由于主观原因造成的领发料错误;并且在采购入库过程中,运用关联规则数据挖掘Apriori算法对领料数据进行挖掘,实现对采购入库计划的指导,减少了采购计划计划的盲目性...     

基于B/S结构船舶食品仓库管理信息系统设计与实现

为了改善船舶食品出入库繁重的手工录入与统计,提高数据采集效率,增强库存数据准确性与可视性,同时规范大型船舶食品保障流程,提出构建基于B/S结构的船舶食品仓库管理信息系统.介绍系统的需求分析、总体结构、开发环境及功能模块设计,并以食品出库为例详细说明食品库存管理模块的具体实现过程.系统基本实现了船舶食品仓库信息化管理,具...     

Taxonomy of quality metrics for assessing assurance of security correctness

Assurance is commonly considered as “something said or done to inspire confidence” (Webster dictionary). However, the level of confidence inspired from a statement or an action depends on the quality of its source. Similarly, the assurance that the deployed security mechanisms exhibit an appropriate posture depends on the quality of the verification process adopted. This paper presents a novel taxonomy of quality metrics pertinent for gaining assurance in a security verification process. Inspired by the systems security engineering capability maturity model and the common criteria, we introduce five ordinal quality levels for a verification process aimed at probing the correctness of runtime security mechanisms. In addition, we analyse the mapping between the quality levels and different capability levels of the following verification metrics families: coverage, rigour, depth and independence of verification. The quality taxonomy is part of a framework for the Security Assurance of operational systems. These metrics can also be used for gaining assurance in other areas such as legal and safety compliance. Furthermore, the resulting metrics taxonomy could, by identifying appropriate quality security requirements, assist manufacturers of information technology (IT) in developing their products or systems. Additionally, the taxonomy could also empower consumers in IT security product selection to efficaciously and effectively match their organisational needs, while IT security evaluators can use it as a reference point when forming judgments about the quality of a security product. We demonstrate the applicability of the proposed taxonomy through access control examples.     

船舶避碰智能决策支持系统研究

建立了一个基于RBR(Case-Based Reasoning,基于案例推理)和CBR(Rule-Based Reasoning,基于规则推理)结合的船舶避碰决策支持模型,将这个模型引入到船舶避碰智能决策支持系统IDSSVCA(Intelligent Decision Support System for Vessel...     

基于CBR应急保障物流体智能决策支持系统研究

在对应急决策和应急保障物流体分析的基础上,应用基于案例推理技术和智能决策方法构建了应急保障物流体智能决策支持系统,讨论了系统的工作原理及体系结构,重点分析了系统的案例推理机制和关键技术,从而为应急状态下的物流保障决策和原形系统的开发提供了理论支撑。     

一种面向决策的企业商务智能系统研究

随着市场竞争的加剧,商务智能及商务智能系统在支持企业决策方面的作用越来越大。在介绍商务智能及商务智能系统的基础上,着重探讨了一种面向决策的企业商务智能系统的业务处理层、数据仓库层、信息共享层的业务层次架构,分析系统的报表引擎、数据存储、数据整理、数据源等技术支撑架构和报表展现、报表管理、报表设计、数据存储、数据源等系统流程体系,详细介绍系统具有的报表单元管理、维度管理、数据管理、报表设计、报表展现、报表权限管理等系统功能,并给出一个电信运营商的应用例子。     

一种面向决策的企业商务智能系统研究

随着市场竞争的加剧,商务智能及商务智能系统在支持企业决策方面的作用越来越大。在介绍商务智能及商务智能系统的基础上,着重探讨了一种面向决策的企业商务智能系统的业务处理层、数据仓库层、信息共享层的业务层次架构,分析系统的报表引擎、数据存储、数据整理、数据源等技术支撑架构和报表展现、报表管理、报表设计、数据存储、数据源等系统流程体系,详细介绍系统具有的报表单元管理、维度管理、数据管理、报表设计、报表展现、报表权限管理等系统功能,并给出一个电信运营商的应用例子。