A New Technique for Nonconvex Primal-Dual Decomposition of a Large-Scale Separable Optimization Problem

1983 ◽  
Author(s):  
A. Tanikawa ◽  
H. Mukai
Keyword(s):  
Large Scale ◽  
Optimization Problem ◽  
New Technique ◽  
Dual Decomposition ◽  
Primal Dual ◽  
A New Technique ◽  
Separable Optimization

The Finale of Mahler's Fifth Symphony: Long-Range Musical Thought

1987 ◽  
Vol 112 (2) ◽  
pp. 257-279
Author(s):  
Carolyn Baxendale
Keyword(s):  
Long Range ◽  
Large Scale ◽  
New Technique ◽  
Musical Thought ◽  
Musical Concepts ◽  
A New Technique

It is clear that all the experience I had gained in writing the first four symphonies completely let me down in this one- for a completely new style demanded a new technique.Twenty-Five years ago a prominent Mahler enthusiast could describe the finale of Mahler's Fifth Symphony as ‘a windy, uninspired stretch of note-spinning, literally scraping the barrel in search of music’. Few people nowadays would subscribe to this view: indeed the upsurge of interest in the work of other ‘late Romantic’ composers has perhaps served to sharpen our admiration for Mahler's exceptional powers of invention and his no less extraordinary mastery of large-scale form. Yet we are not really any closer to explaining just how such extended works are held together and given shape, particularly in the absence of specific extra-musical concepts such as those of the ‘Wunderhorn’ symphonies.

scholarly journals Design of a Distribution Network Using Primal-Dual Decomposition

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
J. A. Marmolejo ◽  
R. Rodríguez ◽  
O. Cruz-Mejia ◽  
J. Saucedo
Keyword(s):  
Large Scale ◽  
Programming Model ◽  
Distribution Network ◽  
Mixed Integer ◽  
Direct Solution ◽  
Distribution Centers ◽  
Dual Decomposition ◽  
Primal Dual ◽  
Cross Decomposition ◽  
Primal And Dual

A method to solve the design of a distribution network for bottled drinks company is introduced. The distribution network proposed includes three stages: manufacturing centers, consolidation centers using cross-docking, and distribution centers. The problem is formulated using a mixed-integer programming model in the deterministic and single period contexts. Because the problem considers several elements in each stage, a direct solution is very complicated. For medium-to-large instances the problem falls into large scale. Based on that, a primal-dual decomposition known as cross decomposition is proposed in this paper. This approach allows exploring simultaneously the primal and dual subproblems of the original problem. A comparison of the direct solution with a mixed-integer lineal programming solver versus the cross decomposition is shown for several randomly generated instances. Results show the good performance of the method proposed.

scholarly journals Acoustic Individual Identification in Birds Based on the Band-Limited Phase-Only Correlation Function

2020 ◽  
Vol 10 (7) ◽  
pp. 2382
Author(s):  
Angel David Pedroza ◽  
José I. De la Rosa ◽  
Rogelio Rosas ◽  
Aldonso Becerra ◽  
Jesús Villa ◽  
...  
Keyword(s):  
Large Scale ◽  
Bird Species ◽  
Individual Identification ◽  
New Technique ◽  
Limited Data ◽  
Verification Algorithm ◽  
Individual Bird ◽  
Two Samples ◽  
Band Limited ◽  
A New Technique

A new technique based on the Band-Limited Phase-Only Correlation (BLPOC) function to deal with acoustic individual identification is proposed in this paper. This is a biometric technique suitable for limited data individual bird identification. The main advantage of this new technique, in contrast to traditional algorithms where the use of large-scale datasets is assumed, is its ability to identify individuals by the use of only two samples from the bird species. The proposed technique has two variants (depending on the method used to analyze and extract the bird vocalization from records): automatic individual verification algorithm and semi-automatic individual verification algorithm. The evaluation of the automatic algorithm shows an average precision that is over 80% for the identification comparatives. It is shown that the efficiencies of the algorithms depend on the complexity of the vocalizations.

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