Colony optimization

In this study, the Gravitational Search Algorithm (GSA) programmed on MATLAB software is applied to solve the optimal problem of determining the liner structure to enhance the penetration performance of the shaped charge warhead.

13p viengels 25-08-2023 4 2   Download

Bài giảng "Tính toán tiến hóa: Bài 7 - Ant Colony Optimization (ACO)" được biên soạn với các nội dung chính sau: Giải thuật toán tối ưu bầy kiến; Giải thuật toán tối ưu bầy ong; Giải thuật toán tối ưu bầy đàn; Giải quyết một bài toán bằng ACO;... Mời các bạn cùng tham khảo bài giảng!

19p kimphuong1001 11-02-2023 8 3   Download

Bài giảng Tính toán tiến hóa - Bài 7: Ant colony optimization (ACO). Bài này cung cấp cho học viên những nội dung về: giải thuật tối ưu hóa bầy kiến; giải thuật tối ưu hóa bầy ong; giải thuật tối ưu hóa bầy đàn; quá trình xây dựng đường đi cho cá thể kiến;... Mời các bạn cùng tham khảo chi tiết nội dung bài giảng!

19p hanlamcoman 26-11-2022 19 4   Download

This study investigates the potential use of advanced DM approaches and proposes a meta-heuristic optimization algorithm – based prediction model. This prediction model integrates the artificial firefly colony algorithm and the machine learning prediction model.

5p vilexus 05-10-2022 10 4   Download

This study suggests an optimal coverage model aimed at the optimal deployment of Wireless sensor networks (WSN) based on improving the artificial bee colony (ABC) algorithm. The distance between the sensor nodes is regulated reasonably by implementing quasi-gravitation and quasi-coulomb power. Also, with a low regional repetition rate, the ABC algorithm can achieve fast optimization. Besides, to minimize node energy consumption, the sensing radius of WSN nodes is dynamically modified.

10p linyanjun_2408 21-04-2022 25 4   Download

Studying four species of red wood ants (Formica rufa, F. polyctena, F. aquilonia, F. lugubris), we examined nest morphometrics (height and diameter of anthills), spatial parameters (location of anthills of different sizes relative to each other), and the number of trails per colony in three regions of Ukraine and Russia: Kyiv region (877 anthills), the Urals (274 anthills) and Cis-Baikal (72 anthills). We have established a relationship between the number of anthills in the nest complex and the maximum parameters of the average height and diameter, as well as the average number of trails.

15p dolomite36 30-12-2021 5 0   Download

The results showed that the RPA reaction, without requiring complex thermal cycles, was well-performed in the optimal conditions of 39°C within only 25 minutes. The limit of detection was identified as 310 fg of L. monocytogenes genomic DNA, which was 1000-fold more sensitive than the conventional PCR. RPA also succeeded to directly detect L. monocytogenes cells at a concentration as low as 2.5 × 101 Colony Forming Unit (CFU)/mL in pure cultures. In addition, RPA could accurately detect L. monocytogenes at 2.5 × 102 CFU/mL in milk without sample extraction or processing.

5p mudbound 10-12-2021 12 1   Download

An extraction method was tested for biomonitoring the biofilm samples containing heavy metals. The fractionation of metal complexes was performed via C-18-HPLC-ICP-MS and MALDI-MS, respectively. The extraction power of some reagents was determined for the heavy metal extraction from biofilm samples collected in Erdemli coast in the Mediterranean Sea. The ammonium acetate solution giving the highest extraction results was found as a suitable extraction reagent. The concentration and pH of the ammonium acetate solution were optimized and found as 1 M and 5, respectively.

14p tudichquannguyet 29-11-2021 12 1   Download

The results showed that with a larger value of pheromone, the chances of obtaining a good solution was found with only small penalty values. This study has proven that the hybrid ACO is able to solve NRPs with good potential solutions that satisfied all four important criteria: coverage, quality, flexibility, and cost.

22p spiritedaway36 28-11-2021 9 2   Download

In this paper, the status of MOO research and state-of-the-art MOSI algorithms, namely multi-objective particle swarm, artificial bee colony, firefly algorithm, bat algorithm, gravitational search algorithm, grey wolf optimizer, bacterial foraging, and moth-flame optimization algorithms, were reviewed.

41p spiritedaway36 28-11-2021 14 1   Download

Luận văn nghiên cứu xây dựng được các mạng tương tác protein (Protein-Protein Interraction Network – PPI Network) tương đối đầy đủ cho nhiều loài sinh vật. Bài toán dóng hàng mạng PPI là một bài toán quan trọng trong phân tích mạng PPI nói chung. Phương pháp tối ưu đàn kiến (Ant Colony Optimization - ACO) là cách tiếp cận metaheuristic, được giới thiệu bởi Dorigo năm 1991 đang được nghiên cứu và ứng dụng rộng rãi cho các bài toán tối ưu tổ hợp khó.

62p heavysweetness 04-08-2021 26 2   Download

This research proposes a new Hybrid Meta-heuristic model which is a combination of Ant Colony Optimization algorithm (ACO), Bacterial foraging algorithm (BFA), and Pair-Wise Exchange Heuristic algorithm (PWEH). The proposed algorithm is named Dynamic Hybrid Ant Colony Algorithm (DHACA) model that can enhance local and global searches simultaneously. In addition, parameter values are optimized to create a better solution.

11p chauchaungayxua12 09-07-2021 13 1   Download

Density functional theory with the BPW91 functional and def2-TZVP basis sets was used to investigate the geometric structures of VB5 −/0 clusters. By using the bee colony algorithm, 300 initial structures are created for the studied cluster. The geometry optimizations at the BPW91/def2-SVP level result in 18 low-lying isomers in quartet states for the anionic cluster. The results at the BPW91/def2-TZVP level show relative energies and vibrational frequencies for diff erent spin states of 7 isomers of the anionic clusters and 6 isomers of the neutral cluster.

9p nguaconbaynhay12 03-06-2021 11 2   Download

A classification tree was used to analyze background factors for granulocyte colony-stimulating factor (G-CSF) preparation selection for febrile neutropenia (FN) prophylaxis in Japanese patients with non-Hodgkin B-cell lymphoma receiving the first R-CHOP cycle.

11p vianrose2711 27-04-2021 7 2   Download

Many functional RNA molecules fold into pseudoknot structures, which are often essential for the formation of an RNA’s 3D structure. Currently the design of RNA molecules, which fold into a specific structure (known as RNA inverse folding) within biotechnological applications, is lacking the feature of incorporating pseudoknot structures into the design.

7p vioklahoma2711 19-11-2020 12 2   Download

Bài toán tối ưu trong sinh học phân tử là một trong những lĩnh vực khoa học tính toán được nghiên cứu nhiều hiện nay; trong đó có vấn đề dự đoán cấu trúc chuỗi RNA bằng những thuật toán tối ưu. Bài viết giới thiệu thuật toán ACO (Ant Colony Optimization) là một phương pháp mới giải bài toán tối ưu tìm cấu trúc bậc 2 của phân tử RNA có tổng năng lượng bền vững nhất.

8p vipennsylvania2711 05-11-2020 40 4   Download

Bài viết trình bày các kết quả nghiên cứu về việc sử dụng thuật toán ACO (Ant Colony Optimization) đã cải tiến để dự đoán cấu trúc bậc hai RNA, đồng thời đưa ra hướng nghiên cứu tiếp theo cần giải quyết.

8p vitexas2711 05-11-2020 32 2   Download

This paper presents a hybrid method that combines the genetic algorithm (GA) and the ant colony system algorithm (ACS), namely GACS, to solve the traffic routing problem. In the proposed framework, we use the genetic algorithm to optimize the ACS parameters in order to attain the best trips and travelling time through several novel functions to help ants to update the global and local pheromones.

10p tamynhan6 14-09-2020 37 4   Download

Under nutrition is a major public health problem among school children. Adequate nutrition is critical for optimal growth and health development of children. To assess the nutritional health of rural tribal 6-12 years school going children of Khowai district, Tripura. The sample for the present cross sectional study was conducted in three schools (Sukhiabari Jr. B School, R.S Colony Sr. B School and Kalidas Debbarma Smriti Sr. B School) rural based primary and Sr. B School of Khowai district, Tripura, in India.

14p kethamoi5 03-06-2020 24 3   Download

A total of 10 samples were collected from Agricultural waste dump sites from various areas of Ladakh and 12 isolates of bacteria were isolated using Nutrient Agar medium. The optimal cultural conditions, microbiological characteristics, biochemical characteristics, antagonistic and synergistic activities within the strains and production of extracellular enzymes of the bacterial strains were documented. Colonies were isolated, cultured and characterized by gram staining and biochemical tests. Six isolates were found to be gram negative while 4 were gram positive.

7p kethamoi5 03-06-2020 14 0   Download