Scheduling Construction Projects by Using Product Models and Learning from Cases

利用产品模型和案例学习调度施工项目

• 批准号: 9215935
• 负责人: Iris Tommelein
• 金额: $ 16万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-08-01 至 1995-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9215935&HistoricalAwards=false
• 关键词: Scheduling; Construction; Projects; Using; Product

To exploit the fact that many construction projects are planned and work methods selectedbased on previous experience, a scheduling model using case-based reasoning is presented. This model not only adapts previous cases to suit a new project to be scheduled; it also extracts and summarizes planning knowledge from several cases and stores that as part of its knowledge base for future use. Thus the storage problem that arises when keeping many cases around is reduced, as planning knowledge is incrementally compiled. To efficiently retrieve this compiled knowledge or the cases, CasePlan uses a product model that describes at a general level what design elements are present in projects and how they structurally or functionally relate to another. The product model is used for case classification and learning planning knowledge. The research demonstrates the importance of product models in organizing and compiling knowledge. The CasePlan system resulting from this research will also be a state-of-the-art automated scheduler for construction. Its schedules will have enough detail to drive a discrete-event simulation of construction execution of the project, which can provide execution feedback and serve to assess the quality of CasePlan's output.

针对许多建设项目都是根据以往的经验来规划和选择工作方法的事实，提出了一种基于案例推理的调度模型。该模型不仅适应以前的案例，以适应新项目的计划；它还从几个案例中提取和总结规划知识，并将其存储为知识库的一部分，以备将来使用。因此，由于计划知识是增量编译的，因此减少了在保存许多案例时出现的存储问题。为了有效地检索这些汇编的知识或案例，CasePlan使用了一个产品模型，该模型在一般级别上描述了项目中出现的设计元素，以及它们在结构上或功能上如何相互关联。产品模型用于案例分类和学习规划知识。研究表明了产品模型在知识组织和汇编中的重要性。由这项研究产生的CasePlan系统也将是一个最先进的建筑自动化调度程序。它的时间表将有足够的细节来驱动项目构建执行的离散事件模拟，这可以提供执行反馈，并用于评估CasePlan输出的质量。