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1. A method to improve the accuracy of SAR image change detection by using an image enhancement method

Author:
Li, Zhi; Jia, Zhenhong; liu, luyang; Yang, Jie; Kasabov, Nikola
Source:
ISPRS journal of photogrammetry and remote sensing 2020 v.163 pp. 137-151
ISSN:
0924-2716
Subject:
algorithms,   etc   ; remote sensing; wavelet;     Show all 3 Subjects
Abstract:
... Accuracy in remote sensing image change detection is an important area of study. A new approach for improving the change detection accuracy of SAR remote sensing images is investigated in this paper. The research in this paper is presented in three parts. First, we proposed a new image enhancement algorithm. We combined the image enhancement algorithm based on the combination of the wavelet domain ...
DOI:
10.1016/j.isprsjprs.2020.03.002

2. Crosstalk-free simultaneous-source full waveform inversion with normalized seismic data

Author:
Zhang, Qingchen; Mao, Weijian; Fang, Jinwei
Source:
Computers & geosciences 2020 v.138 pp. 104460
ISSN:
0098-3004
Subject:
algorithms,   etc   ; computers; geophysics; wavelet;     Show all 4 Subjects
Abstract:
... Simultaneous-source algorithms can increase the efficiency of full waveform inversion (FWI) dramatically through reducing the number of times of wavefield simulations. However, the multiple sources induce the crosstalk artifacts, which severely contaminate the inversion results. To solve this problem, we provide a crosstalk-free simultaneous-source algorithm with the normalized seismic data. Sine ...
DOI:
10.1016/j.cageo.2020.104460

3. Fast and efficient particle packing algorithms based on triangular mesh

Author:
Zhang, Kaiyu; Liu, Feng; Zhao, Gaofeng; Xia, Kaiwen
Source:
Powder technology 2020 v.366 pp. 448-459
ISSN:
0032-5910
Subject:
algorithms,   etc   ; equations; geometry; topology;     Show all 4 Subjects
Abstract:
... The point of departure for the particle-based discrete element simulations is the generation of disk or sphere packing of interest domain. In this paper, based on a triangular mesh, two geometric packing algorithms are proposed for 2D problems. New disk(s) are obtained element-wise by solving system of equations, which can be easily derived according to the local topological relationships. In this ...
DOI:
10.1016/j.powtec.2020.01.079

4. Influence of method selection on clustering analyses of point-like features: Examples from three zones of distributed volcanism

Author:
Cañón-Tapia, Edgardo
Source:
Geomorphology 2020 v.354 pp. 107063
ISSN:
0169-555X
Subject:
algorithms,   etc   ; tectonics; volcanic activity;     Show all 3 Subjects
Abstract:
... Most regions that have experienced spatially distributed volcanism also present a clustered structure of eruptive vents. Attempts to identify patterns from the spatial distribution of vents have resorted to various methods. The influence that specific methods might have on the identified patterns, however, has remained largely unexplored. In this work I assess the ability of common “out-of-the-box ...
DOI:
10.1016/j.geomorph.2020.107063

5. Single-index modal regression via outer product gradients

Author:
Yang, Jing; Tian, Guoliang; Lu, Fang; Lu, Xuewen
Source:
Computational statistics & data analysis 2020 v.144 pp. 106867
ISSN:
0167-9473
Subject:
algorithms,   etc   ; models; regression analysis;     Show all 3 Subjects
Abstract:
... Most existing methods for single-index models (SIM) were focused on either mean regression or quantile regression, while the former is sensitive to outliers or heavy tailed distributions and the latter may lose efficiency for normally distributed data. Then a robust, efficient and easily implemented estimation procedure for index coefficient in SIM is developed by integrating the ideas of local mo ...
DOI:
10.1016/j.csda.2019.106867

6. Optimal placement, sizing and power factor of distributed generation: A comprehensive study spanning from the planning stage to the operation stage

Author:
Huy, Phung Dang; Ramachandaramurthy, Vigna K.; Yong, Jia Ying; Tan, Kang Miao; Ekanayake, Janaka B.
Source:
Energy 2020 v.195 pp. 117011
ISSN:
0360-5442
Subject:
algorithms,   etc   ; case studies; planning;     Show all 3 Subjects
Abstract:
... In this paper, an optimised framework utilising a Differential Evolution algorithm is presented to optimally integrate multiple distributed generation sources simultaneously into the distribution grid. By considering the important power system constraints, the proposed algorithm optimises the location, sizing and power factor setting for each distributed generation source to minimise network losse ...
DOI:
10.1016/j.energy.2020.117011

7. Peer-to-peer energy bartering for the resilience response enhancement of networked microgrids

Author:
Mehri Arsoon, Milad; Moghaddas-Tafreshi, Seyed Masoud
Source:
Applied energy 2020 v.261 pp. 114413
ISSN:
0306-2619
Subject:
algorithms,   etc   ; energy; operating costs;     Show all 3 Subjects
Abstract:
... This paper proposes a peer-to-peer (P2P) energy bartering framework for enhancing resilience response of networked microgrids (NMGs) against extreme events. In the emergencies, electrically isolated microgrids (MGs) are physically interconnected via a common bus to form NMGs for energy sharing. These MGs communicate with each other through cyber links to reach a consensus on direct energy barterin ...
DOI:
10.1016/j.apenergy.2019.114413

8. Short-term electrical load forecasting based on error correction using dynamic mode decomposition

Author:
Kong, Xiangyu; Li, Chuang; Wang, Chengshan; Zhang, Yusen; Zhang, Jian
Source:
Applied energy 2020 v.261 pp. 114368
ISSN:
0306-2619
Subject:
algorithms,   etc   ; electricity; models; variance;     Show all 4 Subjects
Abstract:
... Accurate short-term load forecasting (STLF) is an important basis for daily dispatching of the power grid, but the non-stationary characteristics of the load series add to the challenge of this task. Many researchers have been working to improve the accuracy and speed of forecasting models, but stability is equally important. This paper develops a forecasting method based on error correction using ...
DOI:
10.1016/j.apenergy.2019.114368

9. Comparison of three similarity scores for bullet LEA matching

Author:
Vanderplas, Susan; Nally, Melissa; Klep, Tylor; Cadevall, Cristina; Hofmann, Heike
Source:
Forensic science international 2020 v.308 pp. 110167
ISSN:
0379-0738
Subject:
algorithms,   etc   ; microscopy; photography; topography;     Show all 4 Subjects
Abstract:
... Recent advances in microscopy have made it possible to collect 3D topographic data, enabling more precise virtual comparisons based on the collected 3D data as a supplement to traditional comparison microscopy and 2D photography. Automatic comparison algorithms have been introduced for various scenarios, such as matching cartridge cases [1,2] or matching bullet striae [3–5]. One key aspect of vali ...
DOI:
10.1016/j.forsciint.2020.110167

10. Fast regularity-constrained plane fitting

Author:
Lin, Yangbin; Li, Jialian; Wang, Cheng; Chen, Zhonggui; Wang, Zongyue; Li, Jonathan
Source:
ISPRS journal of photogrammetry and remote sensing 2020 v.161 pp. 208-217
ISSN:
0924-2716
Subject:
algorithms,   etc   ; energy; geometry; models;     Show all 4 Subjects
Abstract:
... Man-made environments typically comprise planar structures that exhibit numerous geometric relationships, such as parallelism, coplanarity, and orthogonality. Making full use of these relationships can considerably improve the robustness of algorithmic plane fitting of complex scenes. This research leverages a constraint model requiring minimal prior knowledge to implicitly establish relationships ...
DOI:
10.1016/j.isprsjprs.2020.01.009

11. A novel multi-objective hybrid particle swarm and salp optimization algorithm for technical-economical-environmental operation in power systems

Author:
El Sehiemy, Ragab A.; Selim, F.; Bentouati, Bachir; Abido, M.A.
Source:
Energy 2020 v.193 pp. 116817
ISSN:
0360-5442
Subject:
algorithms,   etc   ; case studies; particles;     Show all 3 Subjects
Abstract:
... Optimal Power Flow (OPF) problem is one of the most widely nonlinear optimization problems in power systems. This paper proposes a novel hybrid optimization algorithm that combines the merits of salp swarm optimization (SSO) algorithm with particle swarm optimization (PSO) algorithm for solving the OPF problem. The proposed hybrid method is considered to accomplish economic, environmental and tech ...
DOI:
10.1016/j.energy.2019.116817

12. FSM: Fast and scalable network motif discovery for exploring higher-order network organizations

Author:
Wang, Tao; Peng, Jiajie; Peng, Qidi; Wang, Yadong; Chen, Jin
Source:
Methods 2020 v.173 pp. 83-93
ISSN:
1046-2023
Subject:
algorithms,   etc   ; system optimization; topology;     Show all 3 Subjects
Abstract:
... Networks exhibit rich and diverse higher-order organizational structures. Network motifs, which are recurring significant patterns of inter-connections, are recognized as fundamental units to study the higher-order organizations of networks. However, the principle of selecting representative network motifs for local motif based clustering remains largely unexplored. We present a scalable algorithm ...
DOI:
10.1016/j.ymeth.2019.07.008

13. Expandable deep learning for real-time economic generation dispatch and control of three-state energies based future smart grids

Author:
Yin, Linfei; Gao, Qi; Zhao, Lulin; Wang, Tao
Source:
Energy 2020 v.191 pp. 116561
ISSN:
0360-5442
Subject:
algorithms,   etc   ; energy; models; topology;     Show all 4 Subjects
Abstract:
... This paper proposes a three-state energy model, which contains three states, i.e., generator, power load and closed states. Besides, this paper proposes an expandable deep learning for the real-time economic generation dispatch and control of three-state energies based future smart grids. Although three-state energies will interconnected into or disconnected from future smart grids with varying to ...
DOI:
10.1016/j.energy.2019.116561

14. Wireless detector for translational and rotational motion of spherical-particle flow

Author:
Zhu, Y.H.; Yang, H.; Li, R.; Zhang, Y.J.; Chen, Q.; Hua, Y.S.; Sun, Q.C.; Kong, P.
Source:
Powder technology 2020 v.360 pp. 882-889
ISSN:
0032-5910
Subject:
algorithms,   etc   ; accelerometers; gravity; powders;     Show all 4 Subjects
Abstract:
... To measure the translational and rotational motion of spherical particles in a three-dimensional granular flow, a wireless spherical detector with a built-in wireless module and a three-axis gyroscope and three-axis accelerometer was developed. The three-axis acceleration and three-axis angular velocity can be measured and stored by the detector in real time. The attitude angle, the spatial rotati ...
DOI:
10.1016/j.powtec.2019.10.070

15. Design of continuous bridle multiple-stump anchors

Author:
Lyons, C. Kevin; Sessions, John; Wimer, Jeffrey
Source:
International journal of forest engineering 2020 v.31 no.1 pp. 1-8
ISSN:
1913-2220
Subject:
algorithms,   etc   ; problem solving; stumps;     Show all 3 Subjects
Abstract:
... This paper presents a solution for a three-stump anchor system using a continuous bridle and assuming frictionless blocks. This solution is unique in that the location of the bridle block is not known a priori. A particle swarm optimization was used to estimate the three coordinates of the bridle block and the tension in the bridle. A method employing trilateration was developed to locate the know ...
DOI:
10.1080/14942119.2020.1685833

16. f-SAEM: A fast stochastic approximation of the EM algorithm for nonlinear mixed effects models

Author:
Karimi, Belhal; Lavielle, Marc; Moulines, Eric
Source:
Computational statistics & data analysis 2020 v.141 pp. 123-138
ISSN:
0167-9473
Subject:
algorithms,   etc   ; models; statistical analysis;     Show all 3 Subjects
Abstract:
... The ability to generate samples of the random effects from their conditional distributions is fundamental for inference in mixed effects models. Random walk Metropolis is widely used to perform such sampling, but this method is known to converge slowly for medium dimensional problems, or when the joint structure of the distributions to sample is spatially heterogeneous. The main contribution consi ...
DOI:
10.1016/j.csda.2019.07.001

17. Numerical Study of Dam Break Waves on Movable Beds for Complex Terrain by Volume of Fluid Method

Author:
Issakhov, Alibek; Zhandaulet, Yeldos
Source:
Water resources management 2020 v.34 no.2 pp. 463-480
ISSN:
0920-4741
Subject:
algorithms,   etc   ; equations; landscapes; models;     Show all 4 Subjects
Abstract:
... In this study, a method based on the Navier-Stokes equation was developed to simulate the dam break flow. The free surface movement of water is carried out using the Newtonian fluid model, and the mud impurity movement is performed by the model of non-Newtonian fluid based on the volume of fluid (VOF) method. In order to minimize the fluctuations of the free surface near a moving front, the VOF me ...
DOI:
10.1007/s11269-019-02426-1

18. Pilot study on deformed bullet correlation

Author:
Chen, Zhe; Song, John; Soons, Johannes A.; Thompson, Robert M.; Zhao, Xuezeng
Source:
Forensic science international 2020 v.306 pp. 110098
ISSN:
0379-0738
Subject:
algorithms,   etc   ; crime; deformation; topography;     Show all 4 Subjects
Abstract:
... Most studies on bullet identification address test fired bullets that have near pristine striated marks on the land engraved areas (LEAs). However, in case work, bullets found at a crime scene may be severely deformed or fragmented. The resulting missing, expanded, or distorted LEA striations can cause challenges in toolmark comparisons performed by examiners or algorithms. In this paper, an image ...
DOI:
10.1016/j.forsciint.2019.110098

19. The diagnostic performance and accuracy of 3 molecular assays for the detection of Clostridium difficile in stool samples, compared with the Xpert® C. difficile assay

Author:
Azrad, Maya; Tkhawkho, Linda; Hamo, Zohar; Peretz, Avi
Source:
Journal of microbiological methods 2020 v.168 pp. 105784
ISSN:
0167-7012
Subject:
algorithms,   etc   ; Clostridium difficile; feces;     Show all 3 Subjects
Abstract:
... This research compares the performance and diagnostic accuracy of three molecular tests for the detection of Clostridium difficile in stool samples, with the Xpert® C. difficile assay.Fifty-nine positive and twenty-five stool negative samples were analyzed by the BDmax™ Cdiff, the Simplexa C. difficile Direct, and the GenomEra™ C. difficile, and compared with the Xpert® C. difficile routinely used ...
DOI:
10.1016/j.mimet.2019.105784

20. A clustering approach for topic filtering within systematic literature reviews

Author:
Weißer, Tim; Saßmannshausen, Till; Ohrndorf, Dennis; Burggräf, Peter; Wagner, Johannes
Source:
MethodsX 2020 v.7 pp. 100831
ISSN:
2215-0161
Subject:
algorithms,   etc   ; automation; databases;     Show all 3 Subjects
Abstract:
... Within a systematic literature review (SLR), researchers are confronted with vast amounts of articles from scientific databases, which have to be manually evaluated regarding their relevance for a certain field of observation. The evaluation and filtering phase of prevalent SLR methodologies is therefore time consuming and hardly expressible to the intended audience. The proposed method applies na ...
DOI:
10.1016/j.mex.2020.100831
PubMed:
32195145
PubMed Central:
PMC7078380