Online algorithms for BP functions maximization

Online algorithms for BP functions maximization
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BP函数最大化的在线算法

DOI:
10.1016/j.tcs.2021.01.020
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发表时间:
2021
影响因子:
1.1
通讯作者:
Zhang Xiaoyan
Zhang Xiaoyan
中科院分区:
计算机科学4区
文献类型:
--
作者:
Liu Zhicheng;Chen Ling;Chang Hong;Du Donglei;Zhang Xiaoyan

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参考文献

相似文献

BP最大化问题在机器学习和数据科学中有着广泛的应用。它可以被描述为在一定的约束条件下最大化一个超B模函数和一个超模函数之和,其中两个函数都是非负的单调函数。在本文中,我们考虑了两个在线案例。第一类是具有一致拟阵约束的物品逐个到达时的BP极大化问题,我们给出了一个恒定竞争比的在线算法。第二类是受分区拟阵约束的BP最大化问题,其中分区的每个部分以随机顺序到达,对于该问题,我们给出了两个恒定竞争比的近似算法,其中一个是随机化的,另一个是确定性的。
BP maximization problem has many applications in machine learning and data science. It can be described as maximizing the sum of a suBmodular function and a suPermodular function (BP) under some constraints, where both functions are nonnegative and monotonic. In this paper, we consider two online cases. The first is a BP maximization problem subject to a uniform matroid constraint when the items arrive one-by-one, for which we offer an online algorithm with constant competitive ratio. The second is a BP maximization problem subject to a partition matroid constraint where each part of the partition arrives in a random order, for which we present two approximation algorithms of both constant competitive ratios, where one is randomized and the other is deterministic.
DOI: --
发表时间: 2011-06
期刊: --
影响因子: --
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通讯作者: Hui-Ching Lin;J. Bilmes
DOI: --
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期刊: --
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