Measuring customer loyalty using an extended RFM and clustering technique by Zohre Zalaghi, Yousef Abbasnejad Varzi

“…Today, the ability to identify the profitable customers, creating a long-term loyalty in them and expanding the existing relationships are considered as the key and competitive factors for a customer-oriented organization. …”
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Unsupervised feature correlation-based spatial stratification for local context-aware modelling by Jinyu Meng, Zengchuan Dong, Yongze Song

“…The results demonstrate that UFCSS-LC significantly enhances modeling accuracy compared to both single learning models and traditional spatial context-aware models in terms of the decision coefficient and root mean square error. The findings demonstrate the UFCSS-LC’s ability in capturing regional characteristics, constructing locally adaptive models, and balancing model complexity with prediction accuracy. …”
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An Improved Density-Based Spatial Clustering of Applications with Noise Algorithm with an Adaptive Parameter Based on the Sparrow Search Algorithm by Zicheng Huang, Zuopeng Liang, Shibo Zhou, Shuntao Zhang

“…This method leverages the local fast search ability of SSA, using the optimal number of clusters and the silhouette coefficient of the dataset as the objective functions to iteratively optimize and select the two input parameters of DBSCAN. …”
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<strong>Hybrid neural network with genetic algorithms for predicting distribution pattern of <em>Tetranychus urticae</em> (Acari: Tetranychidae) in cucumbers field of Ramhormoz, Ir... by Alireza Shabaninejad, Bahram Tafaghodinia, Nooshin Zandi Sohani

“…Population data of pest was obtained in 2016 by sampling in 100 fixed points in cucumber field in Ramhormoz city, Khuzestan province, Iran. To evaluate the ability of neural networks combined with genetic algorithm to predict the distribution, statistical comparison between the predicted and actual values of some parameters such as variance, statistical distribution and linear regression coefficient was performed. …”
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Research on the stability against overturning for EMU bogie with inner axle box suspension by SU Rui, FU Maohai, LI Ziang, CHE Yunhang

“…The results show the effectiveness of the anti-overturning device to increase the anti-roll ability of the vehicle while maintaining the running stability, and the better safety indicators such as derailment coefficient and wheelset lateral force, in addition to a smaller dynamic envelope.…”
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Compression-compression fatigue life prediction model of T300/69 laminates under edge impact by ZHANG Peng, LIU Jianhui, WEI Yaobing

“…The results show that the fatigue life prediction accuracy of the model is high, the error is controlled within 10%, and the model has good prediction ability.…”
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Routing algorithm for railway monitoring linear WSN based on improved PSO by Cuiran LI, Xuejie WANG, Jianli XIE, Anqi LYU

“…To solve the problems of short network lifetime and large data transmission delay, caused by unbalanced node energy consumption of linear wireless sensor network in railway monitoring scenario, a routing algorithm based on particle swarm optimization theory and breadth first search was proposed.The fitness function was constructed based on the relative energy consumption, spacing and load of candidate cluster heads.The local search ability of particle swarm algorithm was enhanced by adjusting the inertia weight coefficient to set up the cluster head optimal set.Meanwhile, a path cost function driven by energy consumption and delay was built up, and the optimal main path from the source node to the sink node was obtained by breadth first search.Lastly, a Q-learning alternative path updating and route maintenance mechanism based on discrete Markov decision process (MDP) was designed.Simulation results show that the proposed algorithm can balance the node energy consumption effectively, and has also advantages in prolonging the network lifetime and reducing the data transmission delay.…”
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Effect of climate changes on the soil freezing depth in the Volga River basin by I. L. Kalyuzhny, S. A. Lavrov

“…It is shown that the coefficient of variation of the freezing depth decreases when the depth increases. …”
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Initial Investigation of Energy Finite Element Validation on High-Frequency Flexural Vibration of Stiffened Thin Orthotropic Plates by Miaoxia Xie, Lixia Li, Xiangtao Shang, Jianping Zhao

“…Energy finite element analysis (EFEA) has unique advantages in solving high-frequency dynamic responses of orthotropic structures, due to its ability to obtain detailed local response information. …”
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Heterogeneous wireless sensor network routing protocol based on simulated annealing algorithm and modified grey wolf optimizer by Xiaoqiang ZHAO, Shaoya REN, Yongzhi ZHAI, Heng QUAN, Ting YANG

“…It’s one of the main goals of the heterogeneous wireless sensor network (HWSN) to extend the network lifecycle by reasonably utilizing the heterogeneity of node energy.Therefore, according to the heterogeneity of node energy, a routing protocol (SA-MGWO) for HWSN based on simulated annealing (SA) algorithm and modified grey wolf optimizer (GWO) was proposed.Firstly, the appropriate initial clusters were selected by dening different tness functions for heterogeneous energy nodes.Secondly, The tness values of nodes were calculated and treated as initial weights in the GWO.At the same time, the weights were updated dynamically according to the distance between the wolves and their prey and coefficient vectors to improve the GWO’s optimization ability.Finally, simulated annealing algorithm was used to ensure the selection of optimal cluster set in heterogeneous networks.Compared with stable election protocol (SEP), distribute energy efficient clustering (DEEC), modified stable election protocol (M-SEP), and fitness value based improved grey wolf optimizer (FIGWO) protocols, the experimental results indicate that the network lifecycle of the SA-MGWO protocol improves by 53.1%, 31.9%, 46.5% and 27.0% respectively.…”
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Comprehensive assessment of firm financial performance using financial ratios and linguistic analysis of annual reports by Renáta Myšková, Petr Hájek

“…Spearman correlation coefficient is used to compare the values of financial and linguistic indicators. …”
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Performance optimization on RIS-assisted communication for anti-jamming by LI Yapeng, MA Junyu, LI Qiang, GE Xiaohu

“…In the context of high-power jamming scenarios, the anti-jamming ability of communication systems can be enhanced by deploying reconfigurable intelligent surface (RIS). …”
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Investigation of Tribological Behaviour on DLC Coatings for AA5051 using DC Sputtering by L. Natrayan, Piyush Gaur, Anjibabu Merneedi, S. Kaliappan, Pravin P. Patil, V. Sivaprakash, Muse Degefe Chewaka

“…The deposited coatings are then analyzed for their adhesion strength, hardness, coefficient of friction, and chemical compositions. …”
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Applying an optimized low risk model for fast history matching in giant oil reservoir by Mojtaba karimi, Ali Mortazavi, Mohammad Ahmadi

“…Accordingly, the proposed proxy model was successfully constructed using 1086 samples based on R2 coefficient of about 0.9 for the trained and test dataset. …”
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Assessing the Predictive Power of Aptitude Tests on Academic Achievement of Students in Science and Technology Majors by Anindita Dwi Hapsari, Rahmat Hidayat

“…This study found that only the numerical ability subtest had a satisfactory correlation coefficient as a predictor of the academic performance in female STEM students in higher education.…”
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Research on technological innovation decision-making considering government subsidies and corporate reputation. by Yu Kang, Zhe Huang

“…The results show that: government subsidies can effectively stimulate the innovation ability of pharmaceutical enterprises and improve their reputation; the more sensitive an enterprise's reputation is to the coefficient of technological innovation, the more it can improve the enterprise's innovation level; and the coordination contract of government-enterprise cooperation can realize the Pareto improvement of the benefits of the government and enterprises.…”
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von Willebrand factor as a biomarker of clinically significant portal hypertension and severe portal hypertension: a systematic review and meta-analysis by Chunqing Zhang, Ziyuan Zou, Xinwen Yan, Cheng Li, Xiaofeng Li, Xiaofen Ma, Shenghong Ju, Junzhang Tian, Xiaolong Qi

“…Five of the included articles were used to stratify the results for the correlation coefficient, three for the diagnostic performance of CSPH and two for SPH. …”
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Dynamic control of upper limit for rainfall storing and effective use in rice paddies based on improved AquaCrop model by En Lin, Rangjian Qiu, Xinxin Li, Mengting Chen, Shizong Zheng, Fei Ren, Xiaoming Xiang, Chenglong Ji, Yuanlai Cui, Yufeng Luo

“…During the validation period, the late tillering stage showed the best performance of yield simulation accuracy, with a normalized root mean square error (NRMSE) of 7.39 %, and both the coefficient of determination (R2) and nash-sutcliffe efficiency (NSE) coefficient values reaching 0.83. …”
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Clinical value of prognosis gene expression signatures in colorectal cancer: a systematic review. by Rebeca Sanz-Pamplona, Antoni Berenguer, David Cordero, Samantha Riccadonna, Xavier Solé, Marta Crous-Bou, Elisabet Guinó, Xavier Sanjuan, Sebastiano Biondo, Antonio Soriano, Giuseppe Jurman, Gabriel Capella, Cesare Furlanello, Victor Moreno

“…The aim of this work was to assess the prediction ability and potential clinical usefulness of these signatures in a series of independent datasets.…”
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Quality of life and satisfaction with life among community-dwelling older adults based on their level of physical activity: Cross-sectional study by Abdulsalam Yakasai, Hauwa Adam, Akindele Oyeniran, Auwal Abdullahi, Jibrin Sammani, Musa Danazumi

“…However, the relationship between PA level and HRQoL and LS domains was investigated using the Pearson correlation coefficient among Physically active and Physically inactive older adults. …”
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