Results 71 to 80 of about 1,916 (217)

Noisy adaptation generates levy flights in attractor neural networks [PDF]

, 2021
Lévy flights describe a special class of random walks whose step sizes satisfy a power-law tailed distribution. As being an efficientsearching strategy in unknown environments, Lévy flights are widely observed in animal foraging behaviors. Recent studies
Wu, Si, Chu, Tianhao, Huang, Tiejun, Dong, Xingsi, Ji, Zilong   +4 more
core  

AGPLO‐Driven Optimisation for Accurate Segmentation of Papillary Thyroid Carcinoma in Medical Imaging

CAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT Papillary Thyroid Carcinoma (PTC) is the most prevalent thyroid malignancy, and accurate lesion segmentation is essential for clinical diagnosis and treatment planning. Metaheuristic optimisation algorithms have been widely used in Multi‐Threshold Image Segmentation (MTIS), but many existing methods suffer from an imbalance between global ...
Jing Ruan, Xiaoxiao Chen, Hanbing Yao, Yujia Xu, Shiqi Xu, Shihao Zhao, Yulun Wu, Yingting Dai, Yubing Chen, Shuqing Ma, Qiongying Zhang, Ying Zhou, Ali Asghar Heidari, Huiling Chen, Yangping Shentu   +14 more
wiley   +1 more source

Guest Editorial: Unfolding the potential of 5G technologies for future wireless networks

IET Networks, EarlyView.
Abstract With the rapid advancements in mobile Internet and smartphones, data traffic in current mobile communication systems is growing exponentially. At the same time, demands for lower latency, increased robustness, and higher energy efficiency are becoming more stringent.
Gwanggil Jeon, Awais Ahmad, Abdellah Chehri, Shiping Wen   +3 more
wiley   +1 more source

A Tempered Fractional Kinetic Transport Theory for Energetic Particle Interaction with Quasi-two-dimensional Turbulence in the Large-scale Solar Wind

The Astrophysical Journal
Observational evidence is accumulating that turbulence in the solar wind is intermittent (non-Gaussian) because of the strong presence of a quasi-two-dimensional (quasi-2D), low-frequency turbulence component containing nonpropagating, closed, small ...
J. A. le Roux
doaj   +1 more source

Optimal search in interacting populations: Gaussian jumps versus Lévy flights

, 2015
We investigated the relationships between search efficiency, movement strategy, and nonlocal communication in the biological context of animal foraging. We considered situations where the members of a population of foragers perform either Gaussian jumps ...
Calabrese, Justin, López, Cristóbal, Martínez-García, Ricardo   +2 more
core   +1 more source

Practical Day‐Ahead Gas Generator Dispatch Optimisation for Enhancing the Reserved Capacity

IET Smart Energy Systems, EarlyView.
Practical day‐ahead gas generator dispatch optimisation model is proposed to enhance the system reserved capacity. ABSTRACT In order to reduce carbon dioxide emissions, traditional coal‐fired power generation has been strictly limited in China recently, which has led to the problem of reserved capacity shortage. As one of the critical east provinces of
Shengyuan Liu, Yicheng Jiang, Wei Gu, Wenduo Sun, Bin Feng, Gang Huang, Yunchu Wang   +6 more
wiley   +1 more source

Vehicle Route Planning of Diverse Cargo Types in Urban Logistics Based on Enhanced Ant Colony Optimization

World Electric Vehicle Journal
In the realm of urban logistics, optimizing vehicle routes for varied cargo types—including refrigerated, fragile, and standard cargo—poses significant challenges amid complex urban infrastructures and heterogeneous vehicle capacities.
Lingling Tan, Kequan Zhu, Junkai Yi
doaj   +1 more source

ENHANCED MULTI-OBJECTIVE GREY WOLF OPTIMIZATION USING ADAPTIVE DIVERSITY TUNING AND LEVY FLIGHTS [PDF]

Carpathian Journal of Electrical Engineering
This study proposes an enhanced Multi-Objective Grey Wolf Optimizer (MOGWO) using adaptive population diversity tuning and levy flight theories (EMOGWO-ADTLF). It addresses the issues of parameter tunning by balancing exploration and exploitation.
Peter ASIGRI, Emmanuel Asuming FRIMPONG, Emmanuel Kwaku ANTO, Daniel KWEGYIR, Francis Boafo EFFAH   +4 more
doaj   +1 more source

Cities Under Pressure: Evidence on Tourism Growth and Neighbourhood Change in Europe

The Political Quarterly, EarlyView.
Abstract Across European cities, the rapid growth of tourism is reshaping urban life in increasingly contested ways. While the sector continues to support local economies, it is also increasingly associated with the sense that neighbourhoods are becoming less liveable for residents.
Mafalda Batalha
wiley   +1 more source

Lévy flights in quantum transport in quasiballistic wires

, 1998
Conductance fluctuations, localization, and statistics of Lyapunov exponents are studied numerically in pure metallic wires with rough boundaries (quasiballistic wires).
Leadbeater, M., Lambert, C. J., Falko, V. I.; id_orcid   +2 more
core   +1 more source