bluuebunny/crossref_metadata_2025_split huggingface dataset:
The upper bound of vertex local antimagic edge labeling on graph operations
Authors: Agustin Ika Hesti , Dafik  , Marsidi  , Kurniawati E Y 
Published: June 2020

Abstract
Let G(V(G), E(G)) be a connected simple graph and let u, v be two vertices of graph G. A bijective function f from the edge set of G to the natural number up to the number of edges in G is called a vertex local antimagic edge labeling if for any two adjacent vertices v and v′, w(v) = w(v′), where

w
(
v
)
=

∑

e
∈
E
(
v
)

f
(
e
)

, and E(v) is the set of vertices which is incident to v. Thus any vertex local antimagic edge labeling induces a proper vertex coloring of G where the vertex v is assigned with the color w(v). The vertex local antimagic chromatic number χla
(G) is the minimum number of colors taken over all coloring induced by vertex local antimagic edge labeling of G. In this paper, we study the vertex local antimagic edge labeling of graphs and determine the upper bound of vertex local antimagic chromatic number on graph operation, namely cartesian product of graphs, corona product of graphs, and power graph.
Navigation and guidance control system of UNUSAITS AUV based on dynamical system using ensemble kalman filter square root
Authors: Herlambang T , Subchan  , Nurhadi H 
Published: June 2020

Abstract
This study presents the development of navigation system of AUV. It is initially in the form of a nonlinear system model to determine the trajectory for the AUV motion control. The non-linear system model of UNUSAITS AUV is then implemented in the Square Root Ensemble Kalman filter (SR-EnKF) to estimate the trajectory of the AUV. The developed EnKF algorithm covers two types of simulations. The contribution from this paper is trajectory or position estimation of nonlinear UNUSAITS AUV system with 6-DOF AUV model. The result of model estimation is presented based on numeric study and simulation. The first simulation is dedicated to generate 400 ensembles, and the second simulation is to generate 400 ensembles. The second simulation shows that the 500 ensembles give more accurate results. A further examination on the accuracy has been performed by accounting for the RMSE of actual condition and the estimation from the simulation, which yields the range of accuracy between 97 % up to 99%.
Profitability estimation of a Company in PT.ABCD using extended kalman filter
Authors: Anshori M Y , Herlambang T , Karya D F , Muhith A , Rasyid R A 
Published: June 2020

Abstract
Profitability ratios are the ability or results achieved by a company in its sales of goods or services it produces in a certain period. Profitability ratios are required to record financial transactions usually assessed by investors and creditors (banks) to assess the amount of investment profits to be obtained by investors and the amount of corporate profits to assess the company’s ability to pay debts to creditors based on the use level of assets and other resources so that the company efficiency can be seen. Profitability is an important factor in the company, so in this study estimation of company profitability is made. Profitability estimation in this paper used the Extended Kalman Filter (EKF) and Kalman Filter (KF)methods to obtain the accuracy of the estimation. Based on the analysis of the simulation results, the EKF and KF methods can be effectively implemented to estimate the profitability of a company so as to make the right policy in determining the amount of investment and company profits. Based on the results of the analysis on the simulation with 300, 400 and 500 iterations, it has an error of less than 2%.
The effect of lerak foam and kapok as a silencer on lightweight concrete
Authors: Nurtanto Dwi , Suyoso Hernu , Hasanuddin Ahmad , Hayati Zahra Hikmah , Mukhlisin  
Published: June 2020

Abstract
Lerak Foam is Foam produced by Lerak fruit mixed with water. This Foam is very suitable as an air cavity enhancer in lightweight concrete. Kapok is a natural material commonly used as pillows, mattresses and stuffed toys. Kapok with fine fibers and easily formed in a concrete mixture is expected to reduce noise. The purpose of this study is to reduce the noise of concrete materials by adding Lerak Foam and Kapok. This research was conducted in the Concrete Laboratory University of Jember, by making a sample of 40 cm x 40 cm x 40 cm concrete box with a thickness variation of 3 cm and 7 cm. This study intend to compare the value of noise reduction and transmission loss from the concrete specimen model with the addition of 100cc Lerak Foam and Kapok with 0%, 1.5%, 2.5%, 3.5% and 5% from the weight of concrete. The different values can be found by giving a noise gauge inside from the concrete box. The level of noise reduction is affected by the thickness of concrete. The level of noise reduction will increase as much as the addition of Kapok Fibers in concrete mixtures.
The comparison of exponentially weighted moving variance and double moving average-S control charts based on neoteric ranked set sampling
Authors: Putri R J M , Mashuri M , Irhamah  
Published: June 2020

Abstract
In manufacturing industry, quality is very important, because it can determine customers’ satisfaction and distinguish the product from others. The effort that can be made by companies to maintain the products quality is by monitoring and controlling them. One of the statistical methods that can be used for monitoring and controlling quality is control charts. Generally, there are two types of control charts, control chart for mean and control chart for variability. Three models of control charts, recently, have been developed, such as Shewhart, Cumulative Sum (CUSUM), and Exponentially Weighted Moving Average (EWMA). This research will be stated Exponentially Weighted Moving Variance (EWMV) and Double Moving Average-S (DMA-S) for monitoring variability based on Neoteric Ranked Set Sampling (NRSS). EWMV and DMA-S control charts can detect small shifts, and NRSS has better performance than Simple Random Sampling (SRS) and Ranked Set Sampling (RSS). Furthermore, the performance of EWMV based on NRSS and DMA-S basd on NRSS control charts will be compared and evaluated by using Average Run Length (ARL) value with Monte Carlo simulation approach to detect any particular shifts. Both of the control chart models will be applied in Combined Cycle Power Plant (CCPP) case. By this evaluation, the result shows that the DMA-S control chart based on NRSS performs better than the EWMV control chart based on NRSS.
Three form fourier series estimator semiparametric regression for longitudinal data
Authors: Kuzairi  , Miswanto  , Nyoman Budiantara I 
Published: June 2020

Abstract
Analysis of regressionis one technique that is often used in statistical analysis. There are three regression analysis approaches, such as parametric regression, nonparametric regression and semiparametric regression. Semiparametric regression consists of parametric components and nonparametric components. Parametric component that used such as linear estimator and nonparametric component by using a Fourier series estimator. Semiparametric regression approach that use Fourier series, have an advantages which is can resolve oscillation data pattern. This study compares the three Fourier series estimators such as sine, cosine, and combination between cosine and sine or complete estimator for longitudinal data. Longitudinal data can explain more complete information than cross section data or time series data. The purpose of this study is to introduce another Fourier series for the application of electricity consumption in Madura island. The results of this study indicated the optimal model in predicting electricity consumption in Madura island. The best estimator is the Fourier series estimator with the smallest Generalized Cross Validation (GCV) and Mean Square Error (MSE), and the biggest determination coefficient values by considering the parsimony of the model.
Analysis of factors affecting competition in bottled drinking water sales in Madura
Authors: Yulianto T , Fatmawati  , Windarto  , Rohmaniyah M , Faisol  , Mardianto M F F 
Published: June 2020

Abstract
Bottled Drinking Water is water that is treated using certain technologies, then packaged in various forms. The factors that influence the competition in the sale of bottled water include Branding, Packaging, Quality, Sales, Promotion, Competition, Brand, Price, Product Quality, Marketing. From this, there needs to be an analysis to determine the competition in selling bottled water between local and national products. Therefore, research will be conducted using the factor analysis method, factor analysis aims to identify the relationship between variables so that it can be classified into several sets of variables that are less than the number of initial variables. From the ten variables can be reduced to less after a factor analysis then of the ten variables into two factors, from each factor is given a group or name where the first factor is an influence factor and the second factor is an item factor. From each local product and national product have two factors, but of the two added together to produce diversity values, local products are able to provide a cumulative diversity value of 59.474%. While the National Product is able to provide a cumulative diversity value of 62.059%. This research contributed to the decision making regarding the factors that influence the competition in the sale of bottled water. This study provides recommendations to bottled water companies to give more attention to the factors that influence the success of bottled water sales.
Mathematics creativity skill of student in junior high school based on students thinking style
Authors: Isyrofinnisak F , Kusmayadi T A , Fitriana L 
Published: June 2020

Abstract
Mathematical creativity is the ability needed to solve various problems in mathematics. Each student has different creativity, one of which, influenced by thinking styles that have an impact on the quality of perception and ability to order. Students’ thinking styles are divided into four types, namely Concrete Sequential (CS), Abstract Sequential (AS), Concrete Random (CR), and Abstract Random (AR). This research is descriptive qualitative research. The research data were obtained from 25 junior high school students in the Kediri Regency with different student abilities and instruments used in the form of written tests and questionnaires and interviews. The results show that CS students can achieve creativity at the flexibility stage, AS students can achieve creativity at the fluency stage, CR students can reach creativity at the flexibility stage, and AR students can reach creativity at the novelty stage. In order to improve mathematical creativity, students should be given unlimited problem-solving in one way, and the teacher is expected to know students’ thinking styles to be able to determine the appropriate learning methods and techniques.
Scaffolding profile in solving geometry problems in terms of van Hiele level
Authors: Rahman H S , Susanto  , Hobri  , Irfan M , Karimah’ R , Albab A U 
Published: June 2020

Abstract
Solving the geometry problem is not an easy matter for some students. In addition to relying on understanding concepts, problem type exercises, scaffolding is also considered important to assist students in solving geometry problems. This study looked at the scaffolding process for students in solving geometry problems in terms of the van Hiele level. There are three groups of research subjects with each group of subjects representing students who have the ability of geometry at the visual, analytical, and informal deduction levels at the van Hiele level. The research method used is descriptive qualitative. Qualitative methods are used to analyze the subject scaffolding at each level of van Hiele in solving geometry problems. The results of the study found that subjects with a visual level tend to solve problems by presenting them in the form of images without observing in-depth the concepts used. So it takes scaffolding in terms of image presentation, mathematical concepts, and problem-solving flow. Subjects with the level of analysis identify the nature of the wake in the problem to determine the mathematical concepts used. Scaffolding is needed in the form of image presentation and problem-solving flow. While subjects with an informal level of deduction can determine the mathematical concepts used by first looking at the properties of the image. However, subjects at this level still need scaffolding in the problem-solving flow.
Student’s higher-order thinking skills on creative problem solving based on caring community
Authors: Lestari C F , Hobri  , Fatekurohman M , Lutvita D , Ningrum F Y W 
Published: June 2020

Abstract
The teaching and learning activities more effective and efficient if it is supported by high-quality learning device. This research aimed to develop the learning device by using Creative Problem Solving (CPS) based on caring community on "System of Linier Equations in Three Variables" and to determine its effect on student’s higher-order thinking skills. The type of study used is a mixed method that combines qualitative and quantitative method. Qualitative methods are used to obtain data related to the results of the development of learning tools and quantitative methods are used for statistical analysis. The subjects in this study were all students of class X in SMAN 1 Tegaldlimo, with samples consisting of 3 classes namely class X MIPA 1 as an experimental class 1 (with CPS), class X MIPA 2 as an experimental class 2 (with CPS based on caring community), and class X MIPA 4 as a control class (with conventional learning). Higher-order thinking skills were measured by using essay test. The data were analyzed by using normality, homogeneity and One-Way ANOVA tests using SPSS 19. The results of the study showed that (1) the learning device produced were valid, practical, and effective; (2) One-Way ANOVA test results obtained a sig. value of 0,000 < 0,05 which indicates that the implementation of learning device with CPS based on caring community had a significant effect on student’s higher order thinking skills.
Student’s higher order thinking skills on problem solving based on jumping tasks
Authors: Lutvita D , Hobri  , Pambudi D S , Lestari C F , Wahyuningrum F Y 
Published: June 2020

Abstract
Most of the students’ Higher Order Thinking Skills (henceforth, HOTS) are still weak in term of complex problem solving and thus to face this condition a research about problem solving learning by giving jumping tasks to the ninth grade students of junior high school under the subject Power of numbers and form of root is conducted to know their Higher Order Thinking Skills. This research employed mixed method combining Thiagarajan 4D model to develop the learning instruments and experimental research design to know the effect of the learning instruments implementation on the students Higher Order Thinking Skills. The students of SMPN 2 Balung were the subject of this research and three classes were chosen as the sample of the research consisting of two classes as the experimental class and one class as the control class. Learning material was not only developed to make the students able to solve problem but also provide jumping task exercises which designed for the students to solve problem in order to improve their Higher Order Thinking Skill. The research sample was given an essay test to measure their HOTS. The learning instruments developed fulfilled the criteria of valid, practical, and effective. The result of normality and homogeneity tests showed that the data were normally distributed and homogeneous, One-way ANOVA showed the value of sig. 0,000 (p<0,05) which can be concluded that the implementation of jumping task –based problem solving learning had significant positive effect on the students’ Higher Order Thinking Skill (HOTS)
The students’ mathematical reasoning ability based on problem based learning model
Authors: Sari M P , Susanto  , Yuliati N , Imamah E N , Laily N I 
Published: June 2020

Abstract
This research aimed to develop Mathematics instructional instruments by using problem based learning (PBL) on “straight line equation” Learning Material for the eightth grade of Secondary schools well as to know its effect on the students’ matematical reasoning ability. The method used is mixed methods with concurrent triangulation strategy model namely development research method with Thiagarajan model combined with quantitative method. The research subjects were the students of MTsN 5 Jember of Jember regency consisting of 31 students of trial class 31 of experimental class and 31 students of the control class. The instruments of this research are a observation, an test, and an interview. Quantitative method is applied to analyze the difference of student achievement result among two classes are experimental class and control class. while the qualitative method is applied to describe the process and results of problem-based learning development. The product of this study is the problem based learning teaching administrations. The validity of the average value of those teaching adsministrations (lesson plan, the students’ worksheet, THB) is 3,75. The research results showed that: (1) the instructional instruments resulted is valid, the implementa-tion of the instructional instruments is in practical and effective; (2) the significance value (2-tailed) is 0.000 (p < 0.05), which indicated that the application of learning by using PBL had a significant effect on the students’ matematical reasoning ability.
Student’s mathematical creative skill using interactive application media based on collaborative learning
Authors: Inawati P A , Hobri  , Pambudi D S , Guswanto E , Sya’roni A R 
Published: June 2020

Abstract
Completing Linear Equation System by Elementary Row Operations is a fairly complex problem in mathematics. Someone who is faced with this problem can be measured his creative skills. The fact shows that their creative skills are still relatively low. Therefore learning based collaborative using interactive application media will be applied. This research type was a mixed method, which combines quantitative and qualitative research. The Quantitative method is used to analyze student learning outcomes, while the qualitative methods is used to analyze students’ creative abilities. Respondents involved in this study consisted of three classes, consisting of two experimental classes and one control class which is each class consisting of 36 students. The objects of this research was the students of SMAN 1 Kencong Jember, who were selected three class as research samples, therefore XI MIPA 1 class as the first experimental class and XI MIPA 2 class as the second experimental class and at last XI MIPA 3 class as the control class. The research results indicated that the pre-test of three classes was homogeneous. While the post-test result shows that the average of the three classes is significantly different. This is indicated by the value of one way ANOVA (<p = 0.05), it was found that collaborative learning using interactive application media as part of the developed tool can provide better results in terms of creative thinking abilities. Interactive application media as part of collaborative-based learning tools can provide positive stimulation to students so that students’ creative thinking abilities increase. The tool developed in this study was also declared valid, practical and effective.
The analysis of research-based learning implementation and its affect to the students’ metacognition skill in solving a resolving domination number of a graph
Authors: Wangguway Y , Slamin  , Dafik  , Maylisa I N , Kurniawati S 
Published: June 2020

Abstract
Students are expected to be able to maximize metacognition skills by implementing research-based learning. This research aims to investigate the analysis of mathematics learning application implementation based on research-based learning and the influence on students’ metacognition skills in solving resolving domination number problems in the graph. The method used in the research is a mixed-method that is combining the qualitative and quantitative methods. The research subject is the 3rd-semester students consisting of 41 experimental class students and 31 control class students. Both classes are given different treatments. The instruments of this research are the test, observation, and interview. The qualitative method is used to analyze the difference between students’ learning result between two classes, while the qualitative method is applied to analyze students’ metacognition skills. The research results show that there is a significant difference between both classes implementing research-based learning and conventional learning model. The statistic result shows that the 2-tailed significance of independent sample t-test within the post-test is 0.000 or α ≤ 0.05. It shows that the implementation of research-based learning significantly affects students’ metacognition skills in solving resolving domination number problems. Based on the results of the portrait phase analysis, it is known that students in the experimental class have relatively good metacognition skills compared to the control class. This can be seen from the number of indicators that can be mastered by each student.
The analysis of the implementation of project based learning and its influence to the student deductive reasoning based on cognitive style on solving super edge local antimagic total labelling
Authors: Karimah M , Dafik  , Tirta I M , Wangguway Y , Jabbar Z L A 
Published: June 2020

Abstract
In this study, we tried to test students’ deductive reasoning based on cognitive style in the application of super edge total local antimagic labels by applying Project Based Learning (PjBL) learning models. This study uses a mixed method, namely qualitative methods and quantitative methods. The research subjects consisted of two classes, namely 28 control class students and 30 experimental class students. The instruments used in this study were pretest, posttest, observation sheet, and interview sheet. Before the research activities, we tested the homogeneity of both classes using the results of the pretest. Homogeneity test results show the sig value is 0.481> 0.05, so the average difference between the two classes is not significant. This shows that both classes are homogeneous or have the same ability. Next, we also discuss the normality of using posttest data. This shows that the independent sample test on the posttest data from the control class and the experimental class obtained a sig score of 0.657 <0.05, so that it was significant which meant the difference between the control class and the experimental class. While the effect of punishment increases based on students’ cognitive style, it shows that 52% are in the very high category, 31% depend on the high category, 13% depend on the average category, and 4% depend on the low category. Project-Based Learning Model (PjBL) and the influence of deductive reasoning based on students’ cognitive styles in the super edge study of total local antimagic labeling.