When a change occurs in a process, one expects to receive a signal from a control chart as quickly as possible. Upon the receipt of signal from the control chart a search for identifying the source of disturbance begins. However, searching for assignable cause around the signal time, due to the fact that the disturbance may have manifested itself into the rocess sometimes back, may not always l...

This paper describes a method to enhance the performance of a unification-style bottom-up chart parser by means of top-down filtering techniques. The filter developed consists of a syntactic module which prevents the construction of redundant edges in the chart by ensuring that a proposed edge in the chart can really be syntactically combined with neighboring edges later, and a semantic module ...

Le Mehaute (1976)’s chart has been widely used in coastal engineering community because of its simplicity. However, there is a need to update this based on newly developed Stokes wave theory. This paper adopts Fenton (1999)’s 3rd order and 5th cnoidal solution for updating the chart. Fenton’s applicable range between two lines represented by m=0.5 m=0.96. For higher m values (region above red d...

Abstract We show that Schwarzian theories associated with certain hyperbolic and parabolic Virasoro coadjoint orbits admit bosonization, i.e., a global $$S^1$$ S 1 -equivariant Darboux chart in which the corresponding path integral becomes Gaussian. In this chart, corre...

when a change occurs in a process, one expects to receive a signal from a control chart as quickly as possible. upon the receipt of signal from the control chart a search for identifying the source of disturbance begins. however, searching for assignable cause around the signal time, due to the fact that the disturbance may have manifested itself into the rocess sometimes back, may not always l...

Control charts are effective tools for signal detection in both manufacturing processes and service processes. Much of the data in service industries comes from processes having nonnormal or unknown distributions. The commonly used Shewhart variable control charts, which depend heavily on the normality assumption, are not appropriately used here. We propose a new variance control chart based on...

when a change occurs in a process, one expects to receive a signal from a control chart as quickly as possible. upon the receipt of signal from the control chart a search for identifying the source of disturbance begins. however, searching for assignable cause around the signal time, due to the fact that the disturbance may have manifested itself into the rocess sometimes back, may not always l...