Results 11 to 20 of about 20,657 (228)

Optimal Control of Vehicle Path Tracking Problem

open access: yesWorld Electric Vehicle Journal
In response to the problem of low optimization efficiency and low tracking accuracy in vehicle path tracking, a comprehensive optimization method is established based on the 3-DOF vehicle motion model.
Yingjie Liu, Dawei Cui
doaj   +2 more sources

Access Structures in a Standard Translation Dictionary Toegangstrukture in 'n standaard vertalende woordeboek

open access: yesLexikos, 2012
<p>The access structure is the primary guide structure in the central texts of any standard translation dictionary. The metalexicographical term "guide structures" refers to the set of structures that provides a framework within which the ...
Phillip Adriaan Louw
doaj   +2 more sources

A Hierarchical Planning Method for AUV Search Tasks Based on the Snake Optimization Algorithm

open access: yesSensors
In a complex and dynamic battlefield environment, enabling autonomous underwater vehicles (AUVs) to reach dynamic targets in the shortest possible time using global autonomous planning is a key issue affecting the completion of search tasks.
Zhiwen Wen   +5 more
doaj   +2 more sources

Guide Structures in CD-ROM Dictionaries, with Specific Reference to the EWED and the ELHAT

open access: yesLexikos, 2011
<p>macro- and microstructural information. In order to evaluate the methods which lexicographers employ to improve dictionary accessibility, the concept of guide structures was introduced by Hausmann and Wiegand (1989). Since the appearance of that
Philip Louw
doaj   +3 more sources

Nonlinear Path Optimization Algorithm for Mining Trucks Based on Two-Layer Trust Region Strategy

open access: yesKongzhi Yu Xinxi Jishu
This paper proposes a nonlinear path optimization algorithm for mining trucks based on double-layer trust region strategy, aiming at addressing path planning in the complex environment of mining areas.
PENG Fan   +5 more
doaj   +2 more sources

Compound Heuristic Information Guided Policy Improvement for Robot Motor Skill Acquisition

open access: yesApplied Sciences, 2020
Discovering the implicit pattern and using it as heuristic information to guide the policy search is one of the core factors to speed up the procedure of robot motor skill acquisition.
Jian Fu   +4 more
doaj   +2 more sources

Order and Chaos. Margins of “normality” between diagnosis and therapy: from the preliminary meeting to the plot of a speech to come

open access: yesMediterranean Journal of Clinical Psychology, 2015
As human beings, we are driven by two eternal feelings in perpetual fight: the search for order and the fascination of chaos. Man live inside this fight: between body and language, substance and history, soul and its biological reflections.
Paolo Nardi
doaj   +2 more sources

Design of passive fault-tolerant controllers of a quadrotor based on sliding mode theory

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2015
In this paper, sliding mode control is used to develop two passive fault tolerant controllers for an AscTec Pelican UAV quadrotor. In the first approach, a regular sliding mode controller (SMC) augmented with an integrator uses the robustness property of
Merheb Abdel-Razzak   +2 more
doaj   +2 more sources

Path Planning and Obstacle Avoiding of the USV Based on Improved ACO-APF Hybrid Algorithm With Adaptive Early-Warning

open access: yesIEEE Access, 2021
Path planning is important to the efficiency and navigation safety of USV autonomous operation offshore. To improve path planning, this study proposes the improved ant colony optimization-artificial potential field (ACO-APF) algorithm, which is based on ...
Yanli Chen   +4 more
doaj   +1 more source

iDARTS: Differentiable Architecture Search with Stochastic Implicit Gradients [PDF]

open access: yes, 2021
Differentiable ARchiTecture Search(DARTS) has recently become the mainstream in the neural architecture search (NAS) due to its efficiency and simplicity.
Zhang, Miao   +5 more
core   +1 more source

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