A detection method of stagnation symptoms by using project progress models generated from project reports
The purpose of this research is to extract “stagnation symptoms” from progress reports related to a research project. A stagnation symptom is defined in a portion where remarkable stagnation is seen during the progress of a project. Specifically, according to project managers, stagnation symptoms can be classified into the following three kinds: first one is a project bottleneck grasped from one document; the second is clarified by comparing it with the most recent document; and the third is clarified from changes to a working object in a series of documents. We propose a method of extracting stagnation symptoms using the structural analysis of a project’s progress. A progress model that is a structural chart to expressing the progress of a project is generated from documents with label tags, which indicate prior contexts or attributes. This progress model has the following features: a multilevel layer model using detailed degrees and situation analysis using color, and relation analysis of these details and basis using color propagation. Stagnation symptoms are automatically extracted by applying stagnation symptom extraction rules to the progress model. This proposed method was been applied to a set of real progress reports. It could extract stagnation symptoms that were extracted manually.
Standards processing in an integrated engineering system
Abstract This paper discusses a standards processing architecture in integrated systems to handle different standards at different stages of the engineering design process, using the blackboard problem solving model. The standards processing model is based on the semantic mapping between the standard-independent and standard-dependent knowledge represented independently in separate knowledge sources. The semantic mapping in a coordinating knowledge source allows direct interaction of independently developed knowledge sources for efficient reasoning. The architecture provides a knowledge-based backtracking facility to handle failures. The model described here forms part of a project on the development of an integrated knowledge-based expert system for engineering of steel structures (covering planning, analysis, detailed design and construction management activities). The standards processing concepts are illustrated with the help of a loading standards processing and a design standards processing in the design of steel industrial structures.
Representation of systems disturbed by wide band noise
In this paper, a method of handling and working with wide band noise is developed. We represent wide band noise as a distributed delay of white noise and use it to reduce a nonlinear system disturbed by wide band noise to a nonlinear system disturbed by white noise. An application of this reduction to a nonlinear filtering problem under a wide band noise disturbance is discussed.