نتایج جستجو برای: theoretical formulation

تعداد نتایج: 399232  

Journal: :IEEE Trans. VLSI Syst. 1994
Samit Chaudhuri Robert A. Walker J. E. Mitchell

|In integer linear programming (ILP), formulating a \good" model is of crucial importance to solving that model [1]. In this paper, we begin with a mathematical analysis of the structure of the assignment, timing, and resource constraints in high-level synthesis, and then evaluate the structure of the scheduling polytope described by these constraints. We then show how the structure of the cons...

1994
Samit Chaudhuri Robert A. Walker John E. Mitchell

| In integer linear programming (ILP), formulating a \good" model is of crucial importance to solving that model 1]. In this paper, we begin with a mathematical analysis of the structure of the assignment, timing, and resource constraints in high-level synthesis, and then evaluate the structure of the scheduling polytope described by these constraints. We then show how the structure of the cons...

Journal: :Math. Comput. 2003
L. Vardapetyan Leszek F. Demkowicz

New variational formulation to compute propagation constants is proposed. Based on it, vector finite element method is proved to exclude spurious modes provided finite elements possess discrete compactness property. Convergence analysis is conducted in the framework of collectively compact operators. Reported theoretical results apply to a wide class of vector finite elements including two fami...

Journal: :SIAM J. Scientific Computing 1998
Panagiota Tsompanopoulou E. A. Vavalis

This paper presents the formulation, the analysis and the implementation of Alternating Direction Implicit (ADI) methods for solving the linear system of algebraic equations that arise from the discretization of multidimensional linear elliptic Partial Diierential Equations (PDEs). The theoretical analysis is carried out for a board class of PDE problems. Numerical experiments connrm the theore...

Journal: :Reviews in the neurosciences 2008
Pedro L Nieto Del Rincón

Investigations made in previous decades about irregularities in auditory perception in individuals with autism are reviewed and revised clinical and theoretical implications are provided. Emphasis is placed on the fact that these auditory perception irregularities of people with autism are very important for the understanding of the symptoms, for the search of its etiology, for the implementati...

2006
Ionut D. Aron Daniel H. Leventhal Meinolf Sellmann

We present a theoretical study on the idea of using mathematical programming relaxations for filtering binary constraint satisfaction problems. We introduce the consistent value polytope and give a linear programming description that is provably tighter than a recently studied formulation. We then provide an experimental study that shows that, despite the theoretical progress, in practice filte...

2017
Toshiya Hachisuka Iliyan Georgiev Wojciech Jarosz Jaroslav Křivánek Derek Nowrouzezahrai

We propose an extension of the path integral formulation amenable to the expression of volumetric light transport with photon beam estimates. Our main contribution is a generalization of Hachisuka et al.’s extended path space formulation [HPJ12] to light transport in participating media. Our formulation supports various pointand beam-based volumetric density estimators, unifying them with path ...

2013
Matthew S. Maxwell Shane G. Henderson Huseyin Topaloglu

In this paper we consider approximate dynamic programming methods for ambulance redeployment. We first demonstrate through simple examples how typical value function fitting techniques, such as approximate policy iteration and linear programming, may not be able to locate a high-quality policy even when the value function approximation architecture is rich enough to provide the optimal policy. ...

2003
Choh-Man Teng

The standard formulation of association rules is suitable for describing patterns found in a given data set. A number of difficulties arise when the standard rules are used to infer about novel instances not included in the original data. In previous work we proposed an alternative formulation called interval association rules which is more appropriate for the task of inference, and developed a...

Journal: :iranian journal of pharmaceutical research 0
shirin hooshfar department of pharmaceutics, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran. seyed alireza mortazavi department of pharmaceutics, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran mohammad piryaei medical genetics department, faculty of medicine, shahid beheshti university of medical sciences, tehran, iran. hossein ramandi darzi medical genetics department, faculty of medicine, shahid beheshti university of medical sciences, tehran, iran. nahid shahsavari department of clinical pharmacy, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran. farzad kobarfard department of pharmaceutics, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran.

a gradient reversed-phase high performance liquid chromatography (hplc) method was developed for the assay of cetrorelix acetate, a synthetic decapeptide with gonadotropin-releasing hormone (gnrh) antagonistic activity used in infertility treatment. the hplc method, which is used to determine cetrorelix in bulk and pharmaceutical dosage forms, was validated per ich guidelines. the chromatograph...

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