Journal of Information Technology Education-Innovations in Practice最新文献_第10页

Towards Predictive Statistics: A Pedagogical Explanation 走向预测统计:一种教学解释

IF 1.2

Journal of Information Technology Education-Innovations in Practice Pub Date : 2017-01-01 DOI: 10.12988/JITE.2017.737

V. Kreinovich

{"title":"Towards Predictive Statistics: A Pedagogical Explanation","authors":"V. Kreinovich","doi":"10.12988/JITE.2017.737","DOIUrl":"https://doi.org/10.12988/JITE.2017.737","url":null,"abstract":"In statistics application area, lately, several publications appeared that warn about the dangers of the inappropriate application of statistics and remind the users of the recall that prediction is the ultimate objective of the statistical analysis. This trend is known as predictive statistics. However, while the intended message is aimed at the very general audience of practitioners and researchers who apply statistics, many of these papers are not easy to read since they are either too technical and/or too philosophical for the general reader. In this short paper, we describe the main ideas and recommendation of predictive statistics in – hopefully – clear terms. 1 Limitations of the Traditional Statistics and Need for Predictive Approach Prediction is important. One of the main objectives of science and engineering is to predict future events – i.e., to predict what will happen in general, and, specifically, predict what will happen if we undertake a certain action. Prediction in science and engineering. From this viewpoint, the progress of science and engineering is usually made as follows: • we analyze the existing data, and come up with formulas connecting different quantities, • we then use these formulas to predict new phenomena and/or future values of different quantities. If the prediction is successful, i.e., if the observed future values are indeed close to the predictions, then the theory is confirmed. This is how Mendeleev’s periodic table became an accepted theory: when Mendeleev used the observed periodicity to predict several new elements, and","PeriodicalId":43632,"journal":{"name":"Journal of Information Technology Education-Innovations in Practice","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89752379","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

Proper travel schedule of traffic flow of a signalized intersection in urban network with a special barrier 具有特殊屏障的城市网络信号交叉口交通流的合理调度

IF 1.2

Journal of Information Technology Education-Innovations in Practice Pub Date : 2017-01-01 DOI: 10.12988/JITE.2017.7716

T. Tristono, S. D. Cahyono, Sutomo, P. Utomo

引用次数: 2

Contradictions Do Not Necessarily Make a Theory Inconsistent 矛盾不一定使理论不一致

IF 1.2

Journal of Information Technology Education-Innovations in Practice Pub Date : 2017-01-01 DOI: 10.12988/JITE.2017.735

O. Kosheleva, V. Kreinovich

{"title":"Contradictions Do Not Necessarily Make a Theory Inconsistent","authors":"O. Kosheleva, V. Kreinovich","doi":"10.12988/JITE.2017.735","DOIUrl":"https://doi.org/10.12988/JITE.2017.735","url":null,"abstract":"Some religious scholars claim that while the corresponding holy texts may be contradictory, they lead to a consistent set of ethical and behavioral recommendations. Is this logically possible? In this paper, somewhat surprisingly, we kind of show that this is indeed possible: namely, we show that if we add, to statements about objects from a certain class, consequences of both contradictory abstract statements, we still retain a consistent theory. A more mundane example of the same phenomenon comes from mathematics: if we have a set-theoretical statement S which is independent from ZF and which is not equivalent to any arithmetic statement, then we can add both arithmetic statements derived from S and arithmetic statements derived from ¬S and still keep the resulting class of arithmetic statements consistent. 1 Can Contradictions Lead to a Consistent Theory? There are seeming logical contradictions in holy books. From the purely logical viewpoint, holy books often contain inconsistent statements. For example, the Bible has two different stories of creation: • in one, Adam was created first and Eve made out of his rib later on – since he felt lonely in the Paradise, while • in the second one, both first humans were created at the same time. How religions treat such contradictions. There are two main approaches to such seeming contradictions. The first approach is to try to re-interpret the text so that the contradictions disappear. Interestingly, there is also a second approach (see, e.g., [7]), that yes, from our viewpoint, this may be perceived as a contradiction, but both contradictory","PeriodicalId":43632,"journal":{"name":"Journal of Information Technology Education-Innovations in Practice","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73518239","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

In Education, Delayed Feedback Is Often More Efficient Than Immediate Feedback: A Geometric Explanation 在教育中，延迟反馈往往比即时反馈更有效:一个几何解释

IF 1.2

Journal of Information Technology Education-Innovations in Practice Pub Date : 2017-01-01 DOI: 10.12988/JITE.2017.7512

Francisco Zapata, O. Kosheleva, V. Kreinovich

{"title":"In Education, Delayed Feedback Is Often More Efficient Than Immediate Feedback: A Geometric Explanation","authors":"Francisco Zapata, O. Kosheleva, V. Kreinovich","doi":"10.12988/JITE.2017.7512","DOIUrl":"https://doi.org/10.12988/JITE.2017.7512","url":null,"abstract":"Feedback is important in education. It is commonly believed that immediate feedback is very important. That is why instructors stay often late at night grading students’ assignments – to make sure that the students get their feedback as early as possible. However, surprisingly, experiments show that in many cases, delayed feedback is more efficient that the immediate one. In this paper, we provide a simple geometric explanation of this seemingly counter-intuitive empirical phenomenon. 1 Formulation of the Problem In education, intermediate feedback is useful. Empirical data shows that intermediate feedback helps in education. Namely, the very existence of an intermediate test significantly improves the learning outcomes in comparison with the situation when students only learn about their level of knowledge from the final exam; see, e.g., [2]. In [4], we describe a simple geometric model of learning that explains this improvement – and even explains the percentage by which the learning outcomes improve. Shall feedback be immediate or somewhat delayed? Since the feedback provided right after the test is better for learning that the feedback provided only at the end of the class, it seems reasonable to conjecture that the smaller","PeriodicalId":43632,"journal":{"name":"Journal of Information Technology Education-Innovations in Practice","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83635368","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: 2

Why Multiplication Has Higher Priority than Addition: A Pedagogical Remark 为什么乘法比加法更重要:一个教学评论

IF 1.2

Journal of Information Technology Education-Innovations in Practice Pub Date : 2017-01-01 DOI: 10.12988/JITE.2017.61145

O. Kosheleva, V. Kreinovich

{"title":"Why Multiplication Has Higher Priority than Addition: A Pedagogical Remark","authors":"O. Kosheleva, V. Kreinovich","doi":"10.12988/JITE.2017.61145","DOIUrl":"https://doi.org/10.12988/JITE.2017.61145","url":null,"abstract":"Traditionally, multiplication has higher priority over addition; this means that there is no need to add parentheses if we want to perform multiplication first, and we need to explicitly add parentheses if we want addition to be performed first. Why not use an alternative arrangement, in which addition has higher priority? In this paper, we explain the traditional priority arrangement by showing that in the general case, the traditional arrangement allows us to use fewer parentheses than the alternative one. 1 Why Multiplication Has Higher Priority than Addition: Formulation of the Problem Multiplication has higher priority than addition: a reminder. In our usual arithmetic notations, multiplication has priority over addition. This means that if the arithmetic expression has no parentheses, e.g., has the type a+ b · c, then we: • first multiply b and c, and then • add a to the resulting product. If we want to perform addition first, then we have to add parentheses. For example, if we want to first add a and b, and then multiply the sum by c, then we have to write an expression (a+ b) · c. Why? A natural question is: why does multiplication have higher priority than addition? Why not consider addition a higher-priority operation, so that:","PeriodicalId":43632,"journal":{"name":"Journal of Information Technology Education-Innovations in Practice","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89556131","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

Modeling dependence between report lag and claim amounts using copula models 使用copula模型建立报告滞后和索赔金额之间的依赖关系

IF 1.2

Journal of Information Technology Education-Innovations in Practice Pub Date : 2016-03-01 DOI: 10.12988/JITE.2016.6512

P. Weke, Sharon Amayi

引用次数: 0

Improved Computation of Electric Field in Rectangular Waveguide Based Microwave Components Using Modal Expansion 用模态展开改进矩形波导微波元件电场计算

IF 1.2

Journal of Information Technology Education-Innovations in Practice Pub Date : 2016-01-01 DOI: 10.12988/JITE.2016.51019

R. Roy

引用次数: 0

Prediction of public transportation occupation based on several crowd spots using ordinary kriging method 基于多人群点的普通克里格法公共交通职业预测

IF 1.2

Journal of Information Technology Education-Innovations in Practice Pub Date : 2016-01-01 DOI: 10.12988/JITE.2016.6723

S. S. Prasetiyowati, Mahmud Imrona, Izzatul Ummah, Y. Sibaroni

{"title":"Prediction of public transportation occupation based on several crowd spots using ordinary kriging method","authors":"S. S. Prasetiyowati, Mahmud Imrona, Izzatul Ummah, Y. Sibaroni","doi":"10.12988/JITE.2016.6723","DOIUrl":"https://doi.org/10.12988/JITE.2016.6723","url":null,"abstract":"It is known that traffic congestion problems had occurred more frequently and had become much worse nowadays, not only in big cities but also in smaller cities. Therefore, we are required to find a tool to help us developing an analytical model that can be used to govern a public policy regarding traffic management. In the process of building the system there are several issues that have to be addressed. One of those issues is mostly related with how to determine the public transportation routes, how to determine the type of public transportation, and how to determine the optimal amount of public transportation needed for each route. In this research, we limit our study of public transportation system only in Bandung City area. The problem of determining the route of public transportation system can be solved in several ways, for example, by determining the required amount of public transportation based on the estimation of its occupancy in each route. In this research, we use ordinary kriging method based on spatial analysis, to predict occupancy of the public transportation. We conducted daily observations on weekdays and weekend, to collect the traffic data. The result of our research is a 94 Sri Suryani Prasetiyowati et al. prediction of occupancy of public transportation for each crowd spots area. On the weekdays Gaussian theoretical semivariogram is chosen, whereas on the weekend is spherical. Based on the distribution pattern of the occupancy of public transportation as represented in contour-display figure, we conclude that the average occupancy of public transportation in Bandung City is not optimal. Amount of public transportation mode in Bandung exceed standard of transportation public requirement.","PeriodicalId":43632,"journal":{"name":"Journal of Information Technology Education-Innovations in Practice","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79309332","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: 15

Application of soft sets to diagnose the educational obstacles for students 应用软集诊断学生的学习障碍

IF 1.2

Journal of Information Technology Education-Innovations in Practice Pub Date : 2016-01-01 DOI: 10.12988/JITE.2016.626

A. H. Zakri, H. M. Hossen, L. Erwi, E. Al-Sharif

引用次数: 3

How to Determine the Stiffness of the Pavement's Upper Layer (Base) Based on the Overall Stiffness and the Stiffness of the Lower Layer (Subgrade) 如何根据路面整体刚度和下层(路基)刚度确定路面上层(基层)刚度

IF 1.2

Journal of Information Technology Education-Innovations in Practice Pub Date : 2016-01-01 DOI: 10.12988/JITE.2016.6719

C. Servin, V. Kreinovich

{"title":"How to Determine the Stiffness of the Pavement's Upper Layer (Base) Based on the Overall Stiffness and the Stiffness of the Lower Layer (Subgrade)","authors":"C. Servin, V. Kreinovich","doi":"10.12988/JITE.2016.6719","DOIUrl":"https://doi.org/10.12988/JITE.2016.6719","url":null,"abstract":"In road construction, it is important to estimate difficult-measure stiffness of the pavement’s upper layer based the easier-to-measure overall stiffness and the stiffness of the lower layer. In situations when the overall stiffness is not yet sufficient, it is also important to estimate how much more we need to add to the upper layer to reach the desired overall stiffness. In this paper, for the cases when a linear approximation is sufficient, we provide analytical formulas for the desired estimations. 1 Formulation of the Problems Need for multiple-layer pavements. Usually, the soil is not stiff enough to serve as a base for the road. Two ideas are used to reach the desired stiffness: • first, the soil is compacted, to increase it stiffness; • second, on top of the compacted soil – which now serves as a subgrade – a stiffer layer of another material (“base”) is placed (and then compacted too). How to characterize stiffness. Stiffness describes how much the pavement is displaced under the external force: the smaller the resulting displacement, the","PeriodicalId":43632,"journal":{"name":"Journal of Information Technology Education-Innovations in Practice","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73447203","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