منابع مشابه
On simplification of schema mappings
Article history: Received 3 October 2011 Received in revised form 3 July 2012 Accepted 16 January 2013 Available online 21 January 2013
متن کاملSuccessive Mappings: An Approach to Polygonal Mesh Simplification with Guaranteed Error Bounds
We present the use of mapping functions to automatically generate levels of detail with known error bounds for polygonal models. We develop a piece-wise linear mapping function for each simplification operation and use this function to measure deviation of the new surface from both the previous level of detail and from the original surface. In addition, we use the mapping function to compute ap...
متن کاملSimplification of a Petri Net controller in industrial systems
This paper deals with the problem of forbidden states in discrete event systems modeled by Petri Net. To avoid the forbidden states, some constraints which are called Generalized Mutual Exclusion Constraints can be assigned to them. Enforcing these constraints on the system can be performed using control places. However, when the number of these constraints is large, a large number of control p...
متن کاملSimplification of holographic procedures.
The present state of the holographic art has set many stringent parameters on the production of holograms, such as extreme mechanical, temperature, and air stability for long periods of time, and slow film emulsions with extremely high resolution. The Physical Sciences Laboratory of the U.S. Naval Training Device Center has investigated, experimented, and produced many clear high resolution hol...
متن کاملEvaluation of Memoryless Simplification
Error metric comparisons based on quality are typically dealt with by using visual image comparisons and model deviation measurement computations performed on the models after simplification. Performance measures of simplification techniques are measured based on computation time, regardless of the excess hardware resources used to improve these results. Comparisons of error metrics which are i...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1963
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.50.3.431