Pub Date : 2023-06-30DOI: 10.13164/mendel.2023.1.071
Maika Belouerghi, T. Menacer, R. Lozi
This article discusses the multispiral Chua Chaotic attractor’s hidden bifurcations that are generated by the sine function. The number of spirals (also known as a multiscroll attractor) that are controlled by the integer parameter c can be used to describe the basic shape of chaotic attractors. Since this parameter is an integer, increasing it by one does not allow the observation of bifurcations from n to n + 2 spirals. The method of hidden bifurcations, however, enables the observation of such bifurcations by adding a real parameter ε. Chaotic attractors with either an even or an odd number of spirals are visible along the marked paths of bifurcation. Moreover, this additional hidden parameter allows finding the bifurcation of the multispiral Chua attractor from a stable state to a chaotic state. Furthermore, the Routh-Hurwitz criteria are used to study the stability of the original equilibrium point of the Chua attractor.
{"title":"The Routh Hurwitz Criteria for Studying The Stability and Bifurcation in Multispiral Chua Chaotic Attractor","authors":"Maika Belouerghi, T. Menacer, R. Lozi","doi":"10.13164/mendel.2023.1.071","DOIUrl":"https://doi.org/10.13164/mendel.2023.1.071","url":null,"abstract":"This article discusses the multispiral Chua Chaotic attractor’s hidden bifurcations that are generated by the sine function. The number of spirals (also known as a multiscroll attractor) that are controlled by the integer parameter c can be used to describe the basic shape of chaotic attractors. Since this parameter is an integer, increasing it by one does not allow the observation of bifurcations from n to n + 2 spirals. The method of hidden bifurcations, however, enables the observation of such bifurcations by adding a real parameter ε. Chaotic attractors with either an even or an odd number of spirals are visible along the marked paths of bifurcation. Moreover, this additional hidden parameter allows finding the bifurcation of the multispiral Chua attractor from a stable state to a chaotic state. Furthermore, the Routh-Hurwitz criteria are used to study the stability of the original equilibrium point of the Chua attractor.","PeriodicalId":38293,"journal":{"name":"Mendel","volume":"60 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77019650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-30DOI: 10.13164/mendel.2023.1.055
Otman Moussaoui, Yacine El Younnoussi
This research article presents a comprehensive study on the pre-training of two language models, MorRoBERTa and MorrBERT, for the Moroccan Dialect, using the Masked Language Modeling (MLM) pre-training approach. The study details the various data collection and pre-processing steps involved in building a large corpus of over six million sentences and 71 billion tokens, sourced from social media platforms such as Facebook, Twitter, and YouTube. The pre-training process was carried out using the HuggingFace Transformers API, and the paper elaborates on the configurations and training methodologies of the models. The study concludes by demonstrating the high accuracy rates achieved by both MorRoBERTa and MorrBERT in multiple downstream tasks, indicating their potential effectiveness in natural language processing applications specific to the Moroccan Dialect.
本文采用蒙面语言建模(mask language Modeling, MLM)预训练方法，对摩洛哥方言MorRoBERTa和MorrBERT两种语言模型进行了全面的预训练研究。该研究详细介绍了建立一个由超过600万个句子和710亿个代币组成的大型语料库所涉及的各种数据收集和预处理步骤，这些语料库来自Facebook、Twitter和YouTube等社交媒体平台。使用HuggingFace Transformers API进行预训练过程，并详细介绍了模型的配置和训练方法。该研究的结论是，MorRoBERTa和MorrBERT在多个下游任务中都取得了很高的准确率，这表明它们在摩洛哥方言的自然语言处理应用中具有潜在的有效性。
{"title":"Pre-training Two BERT-Like Models for Moroccan Dialect: MorRoBERTa and MorrBERT","authors":"Otman Moussaoui, Yacine El Younnoussi","doi":"10.13164/mendel.2023.1.055","DOIUrl":"https://doi.org/10.13164/mendel.2023.1.055","url":null,"abstract":"This research article presents a comprehensive study on the pre-training of two language models, MorRoBERTa and MorrBERT, for the Moroccan Dialect, using the Masked Language Modeling (MLM) pre-training approach. The study details the various data collection and pre-processing steps involved in building a large corpus of over six million sentences and 71 billion tokens, sourced from social media platforms such as Facebook, Twitter, and YouTube. The pre-training process was carried out using the HuggingFace Transformers API, and the paper elaborates on the configurations and training methodologies of the models. The study concludes by demonstrating the high accuracy rates achieved by both MorRoBERTa and MorrBERT in multiple downstream tasks, indicating their potential effectiveness in natural language processing applications specific to the Moroccan Dialect.","PeriodicalId":38293,"journal":{"name":"Mendel","volume":"78 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82850415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"An introduction to single valued neutrosophic fuzzy numbers, trapezoidal single valued neutrosophic fuzzy numbers and triangular single valued neutrosophic fuzzy numbers","authors":"Ligin P. Mathew, Lovelymol Sebastian","doi":"10.1063/5.0154003","DOIUrl":"https://doi.org/10.1063/5.0154003","url":null,"abstract":"","PeriodicalId":38293,"journal":{"name":"Mendel","volume":"43 3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90024817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"An IVNP TODIM - CRITIC method for the selection of pesticides using aggregation operators","authors":"Stephy Stephen, M. Helen","doi":"10.1063/5.0154088","DOIUrl":"https://doi.org/10.1063/5.0154088","url":null,"abstract":"","PeriodicalId":38293,"journal":{"name":"Mendel","volume":"112 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76978387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Comparison of some parameters based on different key sizes for certain class of cryptographic algorithms","authors":"K. Indira, D. Suresh","doi":"10.1063/5.0154381","DOIUrl":"https://doi.org/10.1063/5.0154381","url":null,"abstract":"","PeriodicalId":38293,"journal":{"name":"Mendel","volume":"174 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74228194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Preface: 2nd International Conference on Computational Sciences-Modelling, Computing and Soft Computing (CSMCS 2022)","authors":"","doi":"10.1063/12.0017897","DOIUrl":"https://doi.org/10.1063/12.0017897","url":null,"abstract":"","PeriodicalId":38293,"journal":{"name":"Mendel","volume":"99 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74255372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Comparison of stock market prediction performance of ARIMA and RNN-LSTM model – A case study on Indian stock exchange","authors":"J. Kumar, R. Sundar, A. Ravi","doi":"10.1063/5.0154124","DOIUrl":"https://doi.org/10.1063/5.0154124","url":null,"abstract":"","PeriodicalId":38293,"journal":{"name":"Mendel","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74868686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Harish G. Siddalingaiah, G. R. Prashanth, R. Jagannath
{"title":"Iterative Gauss-Seidel method improves image reconstruction in diffuse optical Tomography: A comparative study","authors":"Harish G. Siddalingaiah, G. R. Prashanth, R. Jagannath","doi":"10.1063/5.0154037","DOIUrl":"https://doi.org/10.1063/5.0154037","url":null,"abstract":"","PeriodicalId":38293,"journal":{"name":"Mendel","volume":"49 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79156769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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