We suggest using the max-norm as a convex surrogate constraint for clustering. We show how this yields a better exact cluster recovery guarantee than previously suggested nuclear-norm relaxation, and study the effectiveness of our method, and other related convex relaxations, compared to other clustering approaches.

Constrained optimization of high-dimensional numerical problems plays an important role in many scientific and industrial applications. Function evaluations in many industrial applications are severely limited and no analytical information about objective function and constraint functions is available. For such expensive black-box optimization tasks, the constraint optimization algorithm COBRA ...

background: using the method “surrogacy” in which a woman accepts to bear and deliver a child for a married couple is considered as a subsidiary method in infertility therapy. this method is relatively new in iran. objective: the purpose of this study was to evaluate the experiences of the women involved in surrogacy and to reveal some issues related to this method. materials and methods: the m...

Recurrent neural network (RNN)’s architecture is a key factor influencing its performance. We propose algorithms to optimize hidden sizes under running time constraint. We convert the discrete optimization into a subset selection problem. By novel transformations, the objective function becomes submodular and constraint becomes supermodular. A greedy algorithm with bounds is suggested to solve ...

Abstract Ride comfort is a relevant performance for road vehicles. The suspension system can filter vibration caused by the uneven to improve ride comfort. Optimization of vehicle has been extensively studied. As detailed models require significant computational effort, it becomes increasingly important develop an efficient optimization framework. In this work, multi-fidelity surrogate-based fr...

A transactional agent is a mobile agent which manipulates objects in one or more than one object server so as to satisfy some constraints. There are some types of constraints depending on applications. ACID is one of the constraints, which shows traditional atomic transactions. There are other constraints like at-least-one constraint where a transaction can commit if at least one object server ...

Background: The practice of surrogacy is one of the most controversial procedures in infertility treatment. Despite increasing of using this technology in Iran, there are few practical data about surrogacy.There isn't any study assessing experiences of commissioning mothers about surrogate mother selection. Aim: The purpose of this study was exploring of commissioning mothers' experiences in se...

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Apopular approach to handling constraints in surrogate-based optimization is through the additionof penalty functions to an infill sampling criterion that seeks objective improvement. Typical samplingmetrics, such as expected improvement tend to have multimodal landscapes and can be difficult to search. When the problem is transformed using a penalty approach the search can become riddled with ...