Annals of Mathematics and Physics最新文献_第5页

Sound Energy Harvesting and Converting Electricity (SEHCE) 声能收集和转换电力(SEHCE)

Annals of Mathematics and Physics Pub Date : 2022-10-04 DOI: 10.17352/amp.000056

Boco Mervin A

引用次数: 1

Complex network reveals the spatiotemporal pattern of summer extreme precipitation in Eastern China 复杂网络揭示了中国东部夏季极端降水的时空格局

Annals of Mathematics and Physics Pub Date : 2022-10-04 DOI: 10.17352/amp.000055

Zhang Aidi, Zhang Han, G. Meng, Wang Xinyi

引用次数: 0

Simple way to calculate neutrino masses 计算中微子质量的简单方法

Annals of Mathematics and Physics Pub Date : 2022-09-24 DOI: 10.17352/amp.000053

Buravov Lev I

引用次数: 0

Thermodynamic-induced geometry of self-gravitating systems 自重力系统的热力学诱导几何

Annals of Mathematics and Physics Pub Date : 2022-09-16 DOI: 10.17352/amp.000052

Lev Bi, Zagorodny Ag

引用次数: 0

From Engle & Granger model to Johansen model for a more accurate photovoltaic power output forecast 从Engle & Granger模型到Johansen模型对光伏发电输出进行了更准确的预测

Annals of Mathematics and Physics Pub Date : 2022-09-13 DOI: 10.17352/amp.000051

Ramenah Harry

{"title":"From Engle & Granger model to Johansen model for a more accurate photovoltaic power output forecast","authors":"Ramenah Harry","doi":"10.17352/amp.000051","DOIUrl":"https://doi.org/10.17352/amp.000051","url":null,"abstract":"The French government has recently decided to increase the Photovoltaic (PV) capacities to reach 35GW by 2028 in all french territories, the European territory, and overseas territories such as Reunion Island in the Indian Ocean. However, integrating growing numbers of PV power installations and microgrids onto the grid can result in larger-than-expected fluctuations in grid frequency. This is due to PV power output that is not only a function of the operating temperature and solar irradiation but also of other environmental parameters. In this paper, only two environmental parameters are considered in the European zone and when the Engle & Granger statistical method is used, a relationship between variables such as photovoltaic power output and solar irradiation at a different level is obtained. The final relationship without suspicious heteroscedasticity is determined. The model is formulated on the basis of photovoltaic real conditions statistical approach and is more realistic than steady approach models. The Engle & Granger method does not distinguish several cointegration relationships when more variables are considered. For the overseas zone, we added other measured environmental variables and applied a more robust statistical method known as the Johansen vector error correction model (VECM) cointegration approach. In the VECM model, for N explanatory variables and for N > 2, we established a long-run equilibrium relationship that has been tested and the outcome is more than reliable when comparing the model to measured data.","PeriodicalId":430514,"journal":{"name":"Annals of Mathematics and Physics","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115260003","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}

引用次数: 0

Cooperative investment problem with an authoritative risk determined by Central Bank 具有央行确定的权威风险的合作投资问题

Annals of Mathematics and Physics Pub Date : 2022-08-30 DOI: 10.17352/amp.000050

Almualim Anwar

{"title":"Cooperative investment problem with an authoritative risk determined by Central Bank","authors":"Almualim Anwar","doi":"10.17352/amp.000050","DOIUrl":"https://doi.org/10.17352/amp.000050","url":null,"abstract":"In this paper, we are interested to provide an analytic solution for cooperative investment risk with an authoritative risk determined by the central Bank. This problem plays an important role in solving cooperative investment problems in an investment sector such as insurance companies or banks etc and keeping in our mind the effect of a risk determined by the central Bank which has not been done before. We reformulate cooperative investment risk by writing dual representation for each risk preference (Coherent risk measure) for each agent (investor). Finding an analytic solution for this problem for both cases individual and cooperative investment problem by using dual representation for each risk preference has a strong effect on the financial market. Moreover, we find the equilibrium allocation in terms of an equilibrium price by formulating the optimization problem in the case of equilibrium with an initial endowment for each agent’s ’investor’. In addition, formulate a problem that covers the risk minimization problem with an expected return constraint and expected return maximization problem with risk constraint, in both individual and cooperative investment cases, for the general case of an arbitrary joint distribution for the asset return under certain conditions and assuming that all coherent risk measure is continuous from below. Thus, the optimal portfolio is written as the optimal Lagrange multiplier associated with an equality-constrained dual problem. Furthermore, a unique equilibrium allocation as a fair optimal allocation solution in terms of equilibrium price density function for each agent (investor) is also shown.","PeriodicalId":430514,"journal":{"name":"Annals of Mathematics and Physics","volume":"403 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133613407","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}

引用次数: 0

Development online models for automatic speech recognition systems with a low data level 开发低数据水平自动语音识别系统的在线模型

Annals of Mathematics and Physics Pub Date : 2022-08-23 DOI: 10.17352/amp.000049

ОZh Mamyrbayev, D. Oralbekova, K. Alimhan, M. Othman, B. Zhumazhanov

{"title":"Development online models for automatic speech recognition systems with a low data level","authors":"ОZh Mamyrbayev, D. Oralbekova, K. Alimhan, M. Othman, B. Zhumazhanov","doi":"10.17352/amp.000049","DOIUrl":"https://doi.org/10.17352/amp.000049","url":null,"abstract":"Speech recognition is a rapidly growing field in machine learning. Conventional automatic speech recognition systems were built based on independent components, that is an acoustic model, a language model and a vocabulary, which were tuned and trained separately. The acoustic model is used to predict the context-dependent states of phonemes, and the language model and lexicon determine the most possible sequences of spoken phrases. The development of deep learning technologies has contributed to the improvement of other scientific areas, which includes speech recognition. Today, the most popular speech recognition systems are systems based on an end-to-end (E2E) structure, which trains the components of a traditional model simultaneously without isolating individual elements, representing the system as a single neural network. The E2E structure represents the system as one whole element, in contrast to the traditional one, which has several independent elements. The E2E system provides a direct mapping of acoustic signals in a sequence of labels without intermediate states, without the need for post-processing at the output, which makes it easy to implement. Today, the popular models are those that directly output the sequence of words based on the input sound in real-time, which are online end-to-end models. This article provides a detailed overview of popular online-based models for E2E systems such as RNN-T, Neural Transducer (NT) and Monotonic Chunkwise Attention (MoChA). It should be emphasized that online models for Kazakh speech recognition have not been developed at the moment. For low-resource languages, like the Kazakh language, the above models have not been studied. Thus, systems based on these models have been trained to recognize Kazakh speech. The results obtained showed that all three models work well for recognizing Kazakh speech without the use of external additions.","PeriodicalId":430514,"journal":{"name":"Annals of Mathematics and Physics","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125155335","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}

引用次数: 0

Graphene oxide-based waveguides for enhanced self-phase modulation 基于氧化石墨烯的增强自相位调制波导

Annals of Mathematics and Physics Pub Date : 2022-08-09 DOI: 10.17352/amp.000048

Yuning Zhang, Jiayang Wu, Quankui Yang, L. Jia, B. Jia, M. David

引用次数: 0

Weyl conformal symmetry for gravitation and cosmology 万有引力和宇宙学的Weyl共形对称

Annals of Mathematics and Physics Pub Date : 2022-08-02 DOI: 10.17352/amp.000047

Nesbet Rk

引用次数: 0

A tractroid realization of a 2d black hole vacuum 二维黑洞真空的曲面实现

Annals of Mathematics and Physics Pub Date : 2022-08-01 DOI: 10.17352/amp.000046

Williams Floyd L

引用次数: 0