作者：
JAKIELA, MPAPALAMBROS, PULSOY, AGM. Jakiela
P. Papalambros A. G. Ulsoy Department of Mechanical Engineering and Applied Mechanics The University of Michigan Ann Arbor MI 48109
Traditional creativity-enhancement ideas and modern data handling by computing machines can be merged to create programs that make optimal suggestions to the designer. These suggestions are most useful during the desi...
详细信息
Traditional creativity-enhancement ideas and modern data handling by computing machines can be merged to create programs that make optimal suggestions to the designer. These suggestions are most useful during the design concept phase where a synthesis is attempted. The appropriate structuring of such programs is generally data- or problem-specific. From the study of specific applications general rules may emerge. This article demonstrates that approach with an application to the data contained in charts proposed by Boothroyd as guides to design for assembly.
The article provides information about evidence-based cost estimation for better quality of software. Accurate cost estimates are important in order to avoid the cost or quality death spiral. Software professionals re...
详细信息
The article provides information about evidence-based cost estimation for better quality of software. Accurate cost estimates are important in order to avoid the cost or quality death spiral. Software professionals resist the use of formal cost estimation methods because the mental methods they employ and the sequence of steps they use are closely related to reasoning approach. Cost estimation in computer software industry centers around parametric regression-based techniques such as COCOMO, PRICE-S, SEER-SEM, and SLIM. COSEEKMO, a work-bench for repeatable cost estimation experiment, can derive and evaluate numerous cost estimation tools.
ReMark is a fully automatic tool for clustering orthologs by combining a Recursive and a Markov clustering (MCL) algorithms. The ReMark detects and recursively clusters ortholog pairs through reciprocal BLAST best hit...
详细信息
ReMark is a fully automatic tool for clustering orthologs by combining a Recursive and a Markov clustering (MCL) algorithms. The ReMark detects and recursively clusters ortholog pairs through reciprocal BLAST best hits between multiple genomes running software program (***) in the first step. Then, it employs MCL algorithm to compute the clusters ( score matrices generated from the previous step) and refines the clusters by adjusting an inflation factor running software program (***). This method has two key features. One utilizes, to get more reliable results, the diagonal scores in the matrix of the initial ortholog clusters. Another clusters orthologs flexibly through being controlled naturally by MCL with a selected inflation factor. Users can therefore select the fitting state of orthologous protein clusters by regulating the inflation factor according to their research interests.
Dramatic savings in coding costs are drawing some managers to offshore programming contractors. Veteran users of those services say the best candidates for overseas outsourcing are straightforward maintenance or migra...
详细信息
Dramatic savings in coding costs are drawing some managers to offshore programming contractors. Veteran users of those services say the best candidates for overseas outsourcing are straightforward maintenance or migration operations with tightly defined goals and specifications.
An algorithm is given by combining the reduced gradient method with the variable metric method, and its convergence is proved under conditions similar to those given by M. Yue et al. Also, when the objective function ...
详细信息
An algorithm is given by combining the reduced gradient method with the variable metric method, and its convergence is proved under conditions similar to those given by M. Yue et al. Also, when the objective function is uniformly convex, it is proved that the rate of convergence is superlinear under suitable assumptions.
FOCUS is a number system and supporting software especially useful for microcomputer control and other signal processing applications. FOCUS has the wide ranging character of floating-point numbers with a uniformity o...
详细信息
FOCUS is a number system and supporting software especially useful for microcomputer control and other signal processing applications. FOCUS has the wide ranging character of floating-point numbers with a uniformity of state distributions that give FOCUS approximately a fourfold accuracy advantage over an equal length floating-point system. FOCUS computations are typically five times faster than equal word length single precision fixed-point or integer arithmetic for a mixture of operations, comparable with hardware arithmetic in speed for many applications. Algorithms for 8-bit and two versions of 16-bit FOCUS are included. With FOCUS, an 8080A can perform the equivalent of over 20,000 18-bit floating-point additions, subtractions, multiplications, and divisions in one second, and store the results in 16-bit words. FOCUS is more than a theory, it is a completed system providing near hardware speed, 18-bit accuracy, floating-point range, and 8-bit cost.
The problem of the Dutch national flag is described and the standard solution to it is given. This solution is shown to be less than ideal from an aesthetic point of view, and an alternative is offered.
The problem of the Dutch national flag is described and the standard solution to it is given. This solution is shown to be less than ideal from an aesthetic point of view, and an alternative is offered.
暂无评论