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Zero : Jurnal Sains, Matematika, dan Terapan

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Published by Universitas Islam Negeri Sumatera Utara

ISSN : 2580569X EISSN : 25805754 DOI : 10.30829

Core Subject : Science, Education, Agriculture,

Agriculture, Biological Sciences & Forestry Chemistry Mathematics Physics

Arjuna Subject : -

Articles 165 Documents

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DYNAMIC BEHAVIOR OF PREDATOR-PREY WITH RATIO DEPENDENT, REFUGE IN PREY AND HARVEST FROM PREDATOR Hakim, Lukman; Habibi, Azwar Riza
ZERO: Jurnal Sains, Matematika dan Terapan Vol 3, No 1 (2019): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Abstract In this paper, we discuss a dynamical behavior of Predator-Prey with ratiodependent, refuge in prey, and harvest from predator. Model reconstruction isorganized by adding the refuge control in prey with the values 0  m  1, and linearpredator harvesting. The aim of analysis is to describe the equilibrium points andtheir stability. In analysis, the possible fixed points are the prey extinction, thepredator extinction, and predator-prey coexists. By using linearization, thestability of predator extinction point is unstable, and the prey extinction point,coexists point becomes stable with certain condition. Finally, the dynamicalsimulation show that the trajectories of solution convergent to their stability, andthe refuge strategy suitable to avoid the extinction of prey.Key Word: Dynamic Behavior, Predator-Prey, Predation, Refuges, Harvest

IMPROVING CNN FEATURES FOR FACIAL EXPRESSION RECOGNITION Karadeniz, Ahmet Serdar; Karadeniz, Mehmet Fatih; Weber, Gerhard Wilhelm; Husein, Ismail
ZERO: Jurnal Sains, Matematika dan Terapan Vol 3, No 1 (2019): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Abstract Facial expression recognition is one of the challenging tasks in computervision. In this paper, we analyzed and improved the performances bothhandcrafted features and deep features extracted by Convolutional NeuralNetwork (CNN). Eigenfaces, HOG, Dense-SIFT were used as handcrafted features.Additionally, we developed features based on the distances between faciallandmarks and SIFT descriptors around the centroids of the facial landmarks,leading to a better performance than Dense-SIFT. We achieved 68.34 % accuracywith a CNN model trained from scratch. By combining CNN features withhandcrafted features, we achieved 69.54 % test accuracy.Key Word: Neural network, facial expression recognition, handcrafted features

THE EFFECT OF REALISTIC MATHEMATHIC EDUCATION MODELS ON MATHEMATICAL REASONING ABILITY REVIEWED FROM STUDENT’S LEARNING STYLES Apriani, Dini; Mujib, Mujib; Pratiwi, Dona Dinda
ZERO: Jurnal Sains, Matematika dan Terapan Vol 3, No 1 (2019): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Abstract This study aims to see the effect of realistic mathemathic education modelson students' mathematical reasoning abilities in terms of learning styles. This type ofresearch is quantitative. Data collection techniques used were essay tests andinterviews. The data analysis technique used is hypothesis testing using 2-way anava.But before the anava test is carried out, the normality, homogeneity and balance testsare performed. Based on the data that is known that normal data, based on the sameand balanced variance obtained by the 2-way Anova test results indicate that thereis an influence of the RTE model on students' mathematical reasoning ability, namelythe reasoning ability of students with RME model treatment is better than themathematical reasoning ability with conventional treatment methods. In additionthere is the influence of student learning styles on students' reasoning abilities.Furthermore, mathematical reasoning ability of students who have who have a visuallearning style is better than students who have an auditory and kinesthetic learningstyle. While students who have kinesthetic learning styles are better than studentswho have auditory learning styles. There is no interaction between the treatment oflearning with the learning styles category of students. Means, there is no differencein the effect between the learning treatment and learning styles of students on theability of mathematical reasoning on students with the treatment of learning usingthe Realistic Mathematics Education model or using conventional learning models.Key Word: Realistic Mathematical Education Model, MathematicalReasoning Ability, Learning Styles

DECISION SUPPORT SYSTEM DETERMINING THE LEVEL OF PUBLIC SATISFACTION OF THE CITY WITHOUT SLUMS PROGRAM (KOTAKU) IN PNPM MANDIRI IN DELI SERDANG DISTRICT USING THE MULTI-ATTRIBUTE UTILITY THEORY METHOD Syahputra, Prayogo
ZERO: Jurnal Sains, Matematika dan Terapan Vol 3, No 1 (2019): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Abstract To evaluate the success of the Kotaku program (City Without Slums) in PNPM Mandiri in Deli Serdang Regency, a study is needed to determine the level of community satisfaction with the results of the Kotaku program. Then in this study, a decision support system will be built to assist in determining the level of community satisfaction with the Kotaku program. The method chosen to support the above problem solving is Multi-Attribute Utility Theory (MAUT). The system design is done by using Unified Modeling Language (UML) modelling and accompanied by a system interface design. The advantage of this system is that it can perform calculations very quickly and effectively. This decision support system shows that with the advancement of science and technology it can help in determining the right level of community satisfaction by following the correct considerations and calculations. But there are still some weaknesses of the system including this system has a simple interface and does not have the feature to backup the database.

OOAD-BASED MONITORING INFORMATION SYSTEM IN SOFTWARE PRODUCTION MAKING IN PT. XYZ Shedriko, Shedriko; Husein, Ismail
ZERO: Jurnal Sains, Matematika dan Terapan Vol 3, No 2 (2019): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Abstract PT. XYZ is a company engaged in making software that involves both the owner and employees in their activities. This privately-owned company operation includes the functions of project managing, system analysis to programming with work ranging from receiving proposals, collecting user requirements documents, design, user acceptance tests to deployment. The overall function of the work requires centralized overall monitoring where inputting can be done by many people while the management can be carried out by certain personnel only. The research methodology used is descriptive based on object-oriented analysis and design. The results of this study are the design of information systems based on object-oriented analysis and design that are ready to use in their implementation into the program code. The results are expected to be used by PT. XYZ and other companies engaged in similar services in monitoring projects that are in progress

NAIVE BAYES ALGORITHM IN PREDICT GRADUATION OF STUDENTS Shedriko, Shedriko
ZERO: Jurnal Sains, Matematika dan Terapan Vol 3, No 1 (2019): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Abstract. The University of XYZ is a well established university which has five faculties with one of them is post graduate. Charging with a very low cost of tuition fee has attracted so many high school graduation and make it becoming the university with the bulk number of students. It has caused one subject is taught by more than one lecturer. This research is using quantitative analysis method with Naive Bayes Algorithm methodology in passing decision on PTI (Pengantar Teknologi Informasi) subject. The result gives pattern of training data in mean and standard deviation towards three attributes, i.e. tasks, mid-semester and final exam score, which can classify or predict graduation for new data test. The pattern of this equation can also be used for other class classification, on the same or different subjects.

Analysis Of Multi Item Raw Material Inventory Supply Using The Economic Order Quantity Method Anidah Anidah; Hamidah Nasution; Rina Widyasari
ZERO: Jurnal Sains, Matematika dan Terapan Vol 4, No 1 (2020): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/zero.v4i1.8415

Raw material inventory control has a positive impact to support the smooth production process in increasing company profits, one of which is the production of chicken feed at PT. Mabar Feed Indonesia. This study aims to determine the economic order quantity of multi-item chicken feed raw material inventory, and to compare the control of multi-item chicken feed raw material inventory used by companies with the control of multi item chicken feed inventory using the EOQ method. In this study to analyze the data first used the normality test data with the Lilliefors test where the data is normally distributed. The total cost of raw material inventory according to PT Mabar Feed Indonesia is Rp. the cost is greater than the cost obtained by the EOQ method, which is Rp. and savings can be made of Rp. of the cost of raw material inventory according to PT. Mabar Feed Indonesia.

Implementation of Expert System for Detection Periodontitis Disease Using Fuzzy Logic Sri Melvani Hardi; Deliyana Siagian; Syahril Efendi
ZERO: Jurnal Sains, Matematika dan Terapan Vol 4, No 2 (2020): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/zero.v4i2.8993

The wellbeing area is one region that requires innovation in technology. Wellbeing is for sure a costly thing for people. In this manner it takes individual affectability to care for it. One of the solid organs that people frequently disregard is teeth and mouth. Periodontitis is a dental and oral illness that is frequently grumbled of by numerous individuals. In any case, as of recently, periodontitis has not been a critical worry of Indonesian individuals. It is important to give data and comprehension about periodontitis side effects to dynamic smokers by making an expert system. A system is expected to distinguish the underlying indications and straightforwardly beat these side effects. The expert system is a part of Computer Science that fills in as a spot to move information from specialists so computers can have the aptitude to tackle issues utilizing these specialists' information. The technique utilized in this examination is the Fuzzy Logic strategy. This present investigation's eventual outcomes are analytic outcomes from the fluffy rationale technique, where the exactness of the Fuzzy Logic strategy is 93.33%.

Variation Of Rotation In Chaos Game By Modifying The Rules Rana Arij Afifah; Kosala Dwidja Purnomo; Firdaus Ubaidillah
ZERO: Jurnal Sains, Matematika dan Terapan Vol 4, No 1 (2020): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/zero.v4i1.7931

The core concept of fractals is the process of rearranging identical components that have a large amount of self-similarity. One example of fractals is the Sierpinski trianglecan be generated using the chaos game method. This method is a form of play in drawing points on triangles that have certain rules and are repeated iteratively. This research will modify the rules of chaos game triangle with the addition of various rotationswith the center of rotation at one, two, three, four, and five reference points. The visual results obtained are in the form of fractals because they have self-similarity properties and a collection of new points formed experiences rotation with the center of rotation based on the selected reference point with the direction of rotation based on the rules. The visual results of the rotation θ angle are visually symmetrical about the axis-y with the visual results of the rotation 360⁰-θ angle at one, three, four, and five reference points as the center of rotation. At two reference points as the center of rotation it is obtained that there are two parts that are visually symmetrical about a certain line. Visual results of rotation 360⁰ angles at one, two, three reference points as the center of rotation have a shape similar to the Sierpinski triangle. Whereas at four and five points of reference as the center of rotation has a shape similar to the Sierpinski triangle.

Academic Majors Recommendation Using Analytical Hierarchy Process and Multi-Objective Optimization on the Basis of Ratio Analysis Ivan Jaya; Ulfi Andayani; Ayu Dwi Rizky; Juanda Hakim Lubis
ZERO: Jurnal Sains, Matematika dan Terapan Vol 4, No 2 (2020): Zero: Jurnal Sains Matematika dan Terapan
Publisher : UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/zero.v4i2.8989

In determining an academic majors, the mere information about the departments is not sufficient as the base of taking the decision as one would only know popular majors without being aware of his/her potential. There are also limited recommendations obtained through counseling guidance. By using the Analytical Hierarchy Process (AHP) and Multi-Objective Optimization on the basis of Ratio Analysis (MOORA) methods, prospective students get the recommendations of academic majors by putting their preference criteria for the majors. The criteria used are affordable study costs, accreditation of majors, department facilities, student potential to the majors, student interest in majors, future goals, parental advice, self-desire, peer influence, report card scores, previous achievements, passing grade majors and length of study. The Spearman's Rank Correlation method was used to determine the results of the correlation ranking recommendations from the teacher (guidance and counseling teacher) and the system where the weights obtained from the teacher (guidance and counseling teacher) and from the students who filled it through the system. Based on the correlation of the system ranking with the guidance and counseling teacher ranking to 25 students majoring in Natural sciences class XII, the average value of accuracy was 88% with a standard deviation of 0.13. As for the students majoring in social sciences, the average value of accuracy was 97% with a standard deviation of 0.03. From this research, it can be concluded that the Analytical Hierarchy Process (AHP) and Multi Objective Optimization on the basis of Ratio Analysis (MOORA) methods can be used in helping to solve decision-making problems in the recommendation system of academic majors.

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Department of Mathematic Faculty Of Science and Technology Univesitas Islam Negri Sumatera Utara IAIN St. No.1 Medan

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Kota medan,

Sumatera utara

INDONESIA