نتایج جستجو برای: objective invasive weed optimization entropy

تعداد نتایج: 1043120  

Nowadays, effort estimation in software projects is turned to one of the key concerns for project managers. In fact, accurately estimating of essential effort to produce and improve a software product is effective in software projects success or fail, which is considered as a vital factor. Lack of access to satisfying accuracy and little flexibility in existing estimation models have attracted ...

Journal: :Water Science & Technology: Water Supply 2021

Abstract The present study proposes a novel framework to optimize the reservoir operation through linking mesohabitat hydraulic modeling and metaheuristic optimization mitigate environmental impact at downstream of reservoir. Environmental function was developed by simulation. Then, utilized in structure optimization. Different algorithms including practice swarm optimization, invasive weed dif...

2018
Zhiwei Ye Juan Yang Mingwei Wang Xinlu Zong Lingyu Yan Wei Liu

Image segmentation is a significant step in image analysis and computer vision. Many entropy based approaches have been presented in this topic; among them, Tsallis entropy is one of the best performing methods. However, 1D Tsallis entropy does not consider make use of the spatial correlation information within the neighborhood results might be ruined by noise. Therefore, 2D Tsallis entropy is ...

Journal: :CoRR 2016
Anna Choromanska Krzysztof Choromanski Mariusz Bojarski

We analyze the performance of the top-down multiclass classification algorithm for decision tree learning called LOMtree, recently proposed in the literature Choromanska and Langford (2014) for solving efficiently classification problems with very large number of classes. The algorithm online optimizes the objective function which simultaneously controls the depth of the tree and its statistica...

2013
Xianming Gao Yujie Zhao Xuejun Yang Shucun Sun

Trait differences between invasive and native species are believed to be closely related to whether the former are successful. However, few studies have measured trait differences between invasive and native species directly under field conditions or during long term experiments. We examined the phenological pattern, plant height and biomass accumulation and allocation of Crofton weed (Eupatori...

2015
Yanyan Tan Shengtao Li Xiaonan Fang

In order to well solve the phase-only reconfigurable arrays synthesis problems, we introduce an adaptive strategy in invasive weed optimization (IWO), and integrate the adaptive IWO (AIWO) into the framework of MOEA/D, a popular multi-objective algorithm. Then, a new version of MOEA/D with adaptive IWO, named MOEA/D-AIWO is proposed in this paper for solving the synthesis problems. In MOEA/D-AI...

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