Results 11 to 20 of about 43,512 (302)

A greedy algorithm for interval greedoids

open access: yesOpen Mathematics, 2018
We show that the greedy algorithm provided in this paper works for interval greedoids with positive weights under some conditions, and also characterize an exchangeable system to be an interval greedoid with the assistance of the greedy algorithm.
Mao Hua
doaj   +3 more sources

Beware greedy algorithms [PDF]

open access: yesJournal of Animal Ecology, 2019
Nestedness – the tendency for specialist species to interact with subsets of the species that generalist species interact with – is a pervasive feature of empirical mutualistic communities (Bascompte, Jordano, Melián, & Olesen, 2003). While theoretical work has discovered important dynamical implications of nestedness, such as enhanced community ...
Benno I. Simmons   +2 more
openaire   +2 more sources

Optimal Placement Method of City Surveillance Camera Network Based on Road Coverage [PDF]

open access: yesJisuanji gongcheng, 2016
City surveillance camera network provides a powerful support for finding criminal suspects and tracing their routes.In order to benefit from the surveillance camera network,and optimize the placement of surveillance camera network to improve efficiency ...
WEI Hao,CHEN Huafeng,CHEN Jun
doaj   +1 more source

A Surprisal-Based Greedy Heuristic for the Set Covering Problem

open access: yesAlgorithms, 2023
In this paper we exploit concepts from Information Theory to improve the classical Chvatal greedy algorithm for the set covering problem. In particular, we develop a new greedy procedure, called Surprisal-Based Greedy Heuristic (SBH), incorporating the ...
Tommaso Adamo   +3 more
doaj   +1 more source

Improved Epsilon-greedy Algorithm for Cold-start Problem of New Users [PDF]

open access: yesJisuanji gongcheng, 2018
When solving the cold-start problem of new users,fixed and invariant Epsilon parameters will slow the convergence of traditional Epsilon-greedy algorithm.Therefore,an improved Epsilon-greedy algorithm is proposed.Immune feedback model is used to ...
WANG Suqin,ZHANG Yang,JIANG Hao,ZHU Dengming
doaj   +1 more source

Reaching for upper bound ROUGE score of extractive summarization methods [PDF]

open access: yesPeerJ Computer Science, 2022
The extractive text summarization (ETS) method for finding the salient information from a text automatically uses the exact sentences from the source text.
Iskander Akhmetov   +2 more
doaj   +2 more sources

Research on task assignment to minimize travel cost for spatio-temporal crowdsourcing

open access: yesEURASIP Journal on Wireless Communications and Networking, 2021
Online task assignment is one of the core research issues of spatio-temporal crowdsourcing technology. The current researches on minimizing travel cost all focus on the scenario of two objectives (task requesters and workers).
Qingxian Pan   +3 more
doaj   +1 more source

Hyperparameter Optimization Using Successive Halving with Greedy Cross Validation

open access: yesAlgorithms, 2022
Training and evaluating the performance of many competing Artificial Intelligence (AI)/Machine Learning (ML) models can be very time-consuming and expensive.
Daniel S. Soper
doaj   +1 more source

WSN Self-Adaptive Relay Selection for Distribution Grid Monitoring

open access: yesJournal of Harbin University of Science and Technology, 2023
To research the relay selection of wireless sensor network ( WSN) to improve the monitoring level of distribution network, a self-adaptive ε-greedy algorithm-based WSN relay selection optimization method is proposed according to the existing ε- greedy ...
YANG Huifeng   +5 more
doaj   +1 more source

A NOVEL GREEDY GENETIC ALGORITHM TO SOLVE COMBINATORIAL OPTIMIZATION PROBLEM [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
In this paper, a modified genetic algorithm based on greedy sequential algorithm is presented to solve combinatorial optimization problem. The algorithm proposed here is a hybrid of heuristic and computational intelligence algorithm where greedy ...
M. A. Basmassi   +2 more
doaj   +1 more source

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