A. Iriany, Henida Ratna Ayu Putri, Harry Maringan Tua
{"title":"K-means Nonhierarchical Cluster and Dbscan Outlier Detection In the Grouping of Stock Issuers","authors":"A. Iriany, Henida Ratna Ayu Putri, Harry Maringan Tua","doi":"10.37394/232020.2023.3.4","DOIUrl":"https://doi.org/10.37394/232020.2023.3.4","url":null,"abstract":"Group analysis aims to group objects based on similar characteristics so that they are in one group homogeneous and between groups heterogeneous. Study this aim group issuer share in Indonesia based on volatility, liquidity, and market capital. This study uses the non-hierarchical K-Means Clustering method, because the number of samples is big and the number of groups are known. The K-Means Clustering grouping method produces as many as 6 groups with different characteristics. 2. Group 1 consists of stock issuers with quite high volatility and liquidity. The characteristic of group 2 is that it consists of stock issuers with the lowest volatility. Big Capital is the nickname for group 3 because it has market capital or the asset value is very large among all groups and the volatility is very small, and liquid. In Group 4, stock issuers have the highest volatility and the lowest liquidity. Results of profile interpretation in group 5, issuer’s stocks have the highest liquidity and market capital is quite low. Share issuers in group 6 have the volatility highest. Group 3 is recommended as an option for investing. Because, having market capital or large asset values, liquid, and volatility is low enough to minimize risk. The originality of this research is that there is no combination of methods between grouping in fields with k-means clustering and detection of sales with DBSCAN, especially in the field of issuer share in Indonesia.","PeriodicalId":93382,"journal":{"name":"The international journal of evidence & proof","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79345974","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":"Aspects of Solvability Theory for Quasilinear Parabolic Systems in Specific Form with the Singular Coefficients","authors":"M. Yaremenko","doi":"10.37394/232020.2023.3.2","DOIUrl":"https://doi.org/10.37394/232020.2023.3.2","url":null,"abstract":"","PeriodicalId":93382,"journal":{"name":"The international journal of evidence & proof","volume":"99 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78440868","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":"Decision Making in Neutrosophic Environment","authors":"M. Voskoglou","doi":"10.37394/232020.2023.3.1","DOIUrl":"https://doi.org/10.37394/232020.2023.3.1","url":null,"abstract":"Frequently in real life situations decision making takes place under fuzzy conditions, because the corresponding goals and/or the existing constraints are not clearly defined. Maji et al. introduced a method of parametric decision making using soft sets as tools. In reality, however, cases appear in which the decision maker has doubts about the correctness of the parameters assigned to some or all of the elements of the set of the discourse. In order to study more effectively the decision making process in such cases, we introduce neutrosophic sets here and we replace the binary elements in the tabular matrix of the method of Maji et al. by neutrosophic triplets. Our method is illustrated by suitable examples.","PeriodicalId":93382,"journal":{"name":"The international journal of evidence & proof","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88781998","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":"The Effect of Corporate Governance Disclosures, Accounting Conservatism and Ownership Structure on Firm Value (Study in Industrial Sub-Sector of Indonesian Stock Exchange on 2018-2020)","authors":"Dino Ligia Zelvian, A. H. Mukti","doi":"10.37394/232020.2022.2.24","DOIUrl":"https://doi.org/10.37394/232020.2022.2.24","url":null,"abstract":"The EffectThis research was conducted to analyze, observe and test the effect of corporate governance disclosure, accounting conservatism, ownership structure on firm value. The object of this research is the industrial sub-sector companies listed on the IDX during the 2018-2020 period. The sample selection used the purposive sampling method with a total of 96 samples that met the criteria. The analytical method used multiple linear regression analysis with help of the SPSS statistical program. The results show that (1) The corporate governance disclosure has a positive effect on firm value., (2) accounting conservatism has a positive effect on firm value, (3) managerial ownership has no effect on firm value, (4) institutional ownership has no effect on firm value.","PeriodicalId":93382,"journal":{"name":"The international journal of evidence & proof","volume":"72 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80531146","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":"The Vacuum as Imaginary Space. The Unreasonable Effectiveness of Complex Numbers","authors":"G. Minati","doi":"10.37394/232020.2022.2.25","DOIUrl":"https://doi.org/10.37394/232020.2022.2.25","url":null,"abstract":"The background to the article is the classic and quantum understandings of the vacuum and the use of imaginary numbers in quantum models. The purpose of the article is to outline the possible understanding of the vacuum as imaginary space always coupled with the real space in the complex space of complex numbers. This understanding relates to the duality real-potential, collapsed–collapsible, and superimpositions of waves-phenomena as in quantum mechanics. The incomputability of the imaginary parts may represent the physical meaning of the permanent potential pending nature of the vacuum. The presence of imaginary numbers in models may be intended as warranty that it is not possible to compute definitive results, but it is possible to have pending multiple equivalences and superimpositions as in quantum physics and emergent collective processes in complexity. We consider how much the complexity (i.e., the study of emergence and chaos) may be considered related to and represented by complex numbers (i.e., properties of their dual variables and their collapsibility in real numbers). The usage of imaginary numbers may also be intended as the expression or manifestation of something we do not understand yet, as it was for the indemonstrability of the fifth Euclidian postulate and the unavailability of a distribution law for prime numbers. We conclude that a new global understanding is necessary and capable of explaining what we understand as the unreasonable effectiveness of complex numbers.","PeriodicalId":93382,"journal":{"name":"The international journal of evidence & proof","volume":"102 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85244003","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":"Weil-Nachbin Theory for Locally Compact Groups","authors":"M. Yaremenko","doi":"10.37394/232020.2022.2.23","DOIUrl":"https://doi.org/10.37394/232020.2022.2.23","url":null,"abstract":"","PeriodicalId":93382,"journal":{"name":"The international journal of evidence & proof","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84823008","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":"Preliminary Group Classification of nonlinear wave equation utt + ut = f(x, ux)uxx + g(x, ux)","authors":"T. Masebe","doi":"10.37394/232020.2022.2.22","DOIUrl":"https://doi.org/10.37394/232020.2022.2.22","url":null,"abstract":"The paper discusses the non-linear wave equations whose coefficients are dependent on first order spatial derivatives. We construct the principal Lie algebra, the equivalence Lie al- gebra, and the extensions by one of the princi- pal Lie algebra. We further construct the op- timal system of one-dimensional subalgebras for rst three extended five-dimensional Lie alge- bras. These are finally used to determine invari- ant solutions of some examples.","PeriodicalId":93382,"journal":{"name":"The international journal of evidence & proof","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85216523","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":"Evidence, probability and relative plausibility.","authors":"Colin Aitken, Franco Taroni, Silvia Bozza","doi":"10.1177/13657127221114508","DOIUrl":"10.1177/13657127221114508","url":null,"abstract":"<p><p>A comparison is made between probability and relative plausibility as approaches for the interpretation of evidence. It is argued that a probabilistic approach is capable of answering the criticisms of the proponents of relative plausibility. It is also shown that a probabilistic approach can answer the problem of overlapping where there is evidence that each side claims supports its theory of what happened.</p>","PeriodicalId":93382,"journal":{"name":"The international journal of evidence & proof","volume":"26 4","pages":"309-324"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/4c/47/10.1177_13657127221114508.PMC9465537.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40361355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Li-Yorke Chaotic Eigen Set of Direct Sum of Linear Operators","authors":"Sanooj B.,, Vinodkumar P. B.","doi":"10.37394/232020.2022.2.21","DOIUrl":"https://doi.org/10.37394/232020.2022.2.21","url":null,"abstract":"The Li-Yorke chaotic eigen set of an operator consisting of all λ’s such that T- λI is Li-Yorke chaotic. In this paper, the Li-Yorke chaotic eigen set of the direct sum of linear operators is found to be the union of Li- Yorke chaotic sets of the corresponding operators. Also we discuss about the Li-Yorke chaotic eigen set of compact operators, normal operators and self adjoint operators.","PeriodicalId":93382,"journal":{"name":"The international journal of evidence & proof","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82424644","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}