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All Journal MATEMATIKA Statistika Journal of Education and Learning (EduLearn) Jurnal Ilmiah Teknik Elektro Komputer dan Informatika (JITEKI) Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Journal of the Indonesian Mathematical Society AKSIOMA: Jurnal Program Studi Pendidikan Matematika Jurnal Teknologi Informasi dan Ilmu Komputer Jurnal Ekonomi & Studi Pembangunan Suska Journal of Mathematics Education Proceedings Education and Language International Conference Indonesian Journal of Applied Statistics Journal of Mathematics and Mathematics Education (JMME) JTAM (Jurnal Teori dan Aplikasi Matematika) Journal of Education Technology M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika Vygotsky: Jurnal Pendidikan Matematika dan Matematika BISECER (Business Economic Entrepreneurship) Southeast Asian Mathematics Education Journal Jurnal Bumigora Information Technology (BITe) Jurnal TIKOMSIN (Teknologi Informasi dan Komunikasi Sinar Nusantara) Budapest International Research and Critics in Linguistics and Education Journal (Birle Journal) Indonesian Journal of Instructional Media and Model Journal of Applied Data Sciences Jurnal Pengabdian kepada Masyarakat Prosiding Seminar Nasional Teknik Elektro, Sistem Informasi, dan Teknik Informatika (SNESTIK) Industrial Research Workshop and National Seminar Pancaran Pendidikan Prosiding Konferensi Nasional Penelitian Matematika dan Pembelajarannya Jurnal Indonesia Sosial Teknologi JRAMathEdu (Journal of Research and Advances in Mathematics Education) Jurnal Pendidikan MIPA Radiant : Journal of Applied, Social, and Education Studies International Journal of Computing Science and Applied Mathematics-IJCSAM
Sri Subanti
Program Studi Statistika, Universitas Sebelas Maret, Surakarta 57126
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Physics Public Health Social Sciences Other

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Forecasting on Closing Stock Price Data Using Fuzzy Time Series Subanti, Sri; Rahmaningrum, Asti
Indonesian Journal of Applied Statistics Vol 7, No 1 (2024)
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijas.v7i1.54309

Abstract

The stock prices move up and down during trading time which is obtained from time series data. Investors need to estimate the fluctuation of stock prices in the future day to make the best investment decision. Fuzzy time series can be used as an alternative by investors in making stock price predictions. The advantage of this forecasting method compared to others is that it can formulate a problem based on expert knowledge or empirical data. This research aims to apply fuzzy time series in estimating the future value of closing stock price on the LQ45 Index. Three different methods will be applied to the data which are Chen, Lee, and Cheng. The data of the LQ45 Index will be obtained during the period of January, 4th until April 30th, 2021. The LQ45 index is chosen by many investors because it has high returns. All three model were applied and has a different rule in the calculation stage. The results show that all three models give different forecasting values and different performance of accuracy. The Lee method has the lowest values of accuracy, meanwhile the Cheng method has the highest value of accuracy. It can be concluded that Lee method is the best model indicated by the lowest value of RMSE, MAD, and MAPE for estimating the closing stock price of the LQ45 index.
Model Simulation of Continuous Time Markov Chain Susceptible Infected Recovered-Bacterial Population for Cholera Disease Hidayati, Aulia Maulani Syifa Nur; Respatiwulan, Respatiwulan; Subanti, Sri
Indonesian Journal of Applied Statistics Vol 6, No 1 (2023)
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijas.v6i1.71801

Abstract

Epidemic is an outbreak of an infectious disease rapidly in a population at a certain place and time. Epidemic models are used to explains the spread pattern of disease. The continuous time Markov chain susceptible infected recovered-bacterial population in the aquatic reservoir (CTMC SIR-B) model is a stochastic model, which considers the effect of bacterial population. The human population are classified into 3 groups. There are susceptible, infected, and recovered groups. Then, there are bacterial population which can infectious the cholera disease to human. CTMC SIR-B model considers treatment and water sanitation parameters. The spread of cholera disease can be modeled as CTMC SIR-B. Cholera is an acute intestinal infectious disease caused by the bacterium Vibrio cholerae. Cholera can be transmitted through the human digestive system. The symptoms of cholera disease are diarrhea, vomiting, and dehydration. The dehydration if not handled properly, may cause death. The aims of this research are to build and simulate the CTMC SIR-B model for cholera disease. The result of the model simulation shows that there is no significant difference between various values of treatment and water sanitation parameters. The pattern of the cholera disease spread describes that the transmission of cholera can occur from human to human even though there is no population of bacteria in the aquatic reservoir.Keywords: cholera; ctmc sir-b; epidemic model; stochastic. 
Mathematical Literacy of Junior High School Students in Solving Problems Pisa Content Quantity Salsabila, Nais Qonita; Usodo, Budi; Subanti, Sri
Journal of Mathematics and Mathematics Education Vol 11, No 2 (2021): Journal of Mathematics and Mathematics Education (JMME)
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jmme.v11i2.58132

Abstract

Mathematical literacy is defined as students’ capacity to formulate, employ and interpret mathematics in a variety of contexts. It includes reasoning mathematically and using mathematical concepts, procedures, facts and tools to describe, explain and predict phenomena. It assists individuals in recognising the role that mathematics plays in the world and to make the well-founded judgements and decisions needed by constructive, engaged and reflective citizens. Quantity content includes the ability in reasoning quantitatively, representing something into numbers, understanding mathematical steps, counting by heart and making assessments. The questions on quantity content are mostly implemented in everyday life, such as in exchanging currency exchange rates, determining bank interest, shopping, calculating taxes, measuring time, measuring distance and others. The purpose of this article is to describe the level of mathematical literacy ability of junior high school students in solving Quantity content PISA questions. The data from this study were taken from the results of the PISA test questions on quantity content and interviews. Subject taking is based on the test results of students who have the highest scores, as it is expected to get the results of the analysis of students’ high literacy skills. In this research, the researcher is using indicators of mathematical literacy level according to PISA. Based on the results of research and discussion, it is concluded that there are students who have high mathematical literacy skills equivalent to level 5.
The Effect of Teams Games Tournament (TGT) and Team Assisted Individualization (TAI) Learning Models on The Mains of Discussion Reviewed From Student's Learning Creativity Kurnianto, Iwan; Usodo, Budi; Subanti, Sri
Journal of Mathematics and Mathematics Education Vol 10, No 1 (2020): Journal of Mathematics and Mathematics Education (JMME)
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jmme.v10i1.22642

Abstract

This study aims to determine: which ones provide better Mathematics learning outcomes; which students have better Mathematics learning achievement, students with high, medium or low creativity; for each creativity level that gives better Mathematics learning outcomes; for each mathematics learning model that has better mathematics learning achievement in students of high, medium, or low creativity on Numbers material for learning TGT, TAI. This type of research is a quasi-experimental research with a 3 x 3 factorial design. The population in this study were all students of grade VII SMP in Kudus Regency 2015/2016 academic year. The research sample was taken using stratified cluster random sampling technique. The samples of this study were students of class VII SMP Negeri 1 Mejobo, SMP Negeri 1 Bae, and SMP Negeri 3 Bae. The results obtained, TGT provides better mathematics learning achievement than TAI. students with high and moderate creativity have the same mathematics learning achievement. students with TGT have better mathematics learning achievement than TAI students. students with high and moderate creativity have the same mathematics learning achievement. 
KEMAMPUAN KOMUNIKASI MATEMATIS SISWA KELAS VII SMP NEGERI 1 MOJOLABAN TAHUN PELAJARAN 2014/2015 Khoiriyah, Nor; Sujadi, Imam; Subanti, Sri
Journal of Mathematics and Mathematics Education Vol 6, No 1 (2016): Journal of Mathematics and Mathematics Education (JMME)
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jmme.v6i1.10040

Abstract

Abstract. The purpose of this research was to describe the ability of student’s mathematical communication who had low, medium, and high early mathematics ability in class VII SMP Negeri 1 Mojolaban on aspect grammatical, sociolinguistic, strategic, and discourse competence in solving mathematics problem. This research was a qualitative research. The subjects in this research were seven students of class VIIE SMP Negeri 1 Mojolaban, which consisted of three students who had low early mathematical ability, two students who had medium early mathematics ability, and two students who had  high early mathematical ability.The subjects in this research were taken by using the purposive sampling technique. The main instrument used in this research to collect the data was the researcher and the other instrument were a task that contains of test question and interview guide instrument. Data analysis technique were conducted by data reduction, data presentation and conclusion. The validity of the data was conducted by using time triangulation that compared the data of the first task based interviews with the data of the second task based interviews. The equal valid data of mathematical communication ability on aspect grammatical, sociolinguistic, strategic, and discourse competence was made the main finding, whereas the different of valid data was made other finding of the research. The result of this research are the students who had low, medium, and high early mathematics abilities were have imperfect mathematical communication on grammatical, sociolinguistic, strategic, and discourse competence. The imperfection that appear  on each competence caused by some indicators that not fulfilled completely.Keywords: Mathematical communication, grammatical competence, discourse competence
Profile Of Tourist Visits In Sangiran Site Area, Sragen Regency Subanti, Sri; Slamet, Isnandar; Sulandari, Winita; Zukhronah, Etik; Sugiyanto, Sugiyanto; Susanto, Irwan
Journal of Mathematics and Mathematics Education Vol 11, No 1 (2021): Journal of Mathematics and Mathematics Education (JMME)
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jmme.v11i1.52744

Abstract

Tourism activities are chain activities that involve various sectors and related institutions. Tourism is one of the fields in the lives of the people of Sragen Regency, which has become one of the priorities in development in recent years. This is based on the local government's awareness that tourism development can support regional income while at the same time increasing the standard of living of people living in tourist areas. For this reason, evaluating the impact of tourism in an area on the socioeconomic conditions of the community is an important thing to know. Sangiran is one of the most complete paleontological sites in Indonesia. Sangiran has also been designated as a cultural heritage by UNESCO on December 5, 1996, with the designation number C.593. The Sangiran site itself is located in Sragen Regency and Karanganyar Regency, Central Java Province. In general, the background of the population in the Sangiran Site area comes from the Javanese ethnic group, who in daily life communicate using the Javanese language. The Sangiran site has been known as an ancient human area from the Pleistocene. Not only storing archaeological wealth, but Sangiran is also very rich in artistic potential, both from prehistoric times and the present. Many things can be enjoyed in Sangiran. Apart from the museum that presents archaeological findings full of meaning, the public can also enjoy the local culture, including traditional arts, traditional ceremonies, local architecture, and folk crafts, adding value to the site. This study aims to determine the profile of tourist visits in the Sangiran Site Area. This study found that the factors that influence the number of visits to the Sangiran Site Area are travel costs, age, gender, and monthly income of respondents related to visiting the Sangiran Site Area. Furthermore, the factors that influence the respondents' willingness to accept ticket offers in the market hypothesis scenario in the Sangiran Site Area are the nominal price of the entrance ticket to a market hypothesis given to respondents, age, gender, monthly income of respondents, education level of respondents, and origin of the respondent.
Co-Authors A.A. Ketut Agung Cahyawan W Abdul Aziz Abdul Aziz Abdul Aziz Hidayat Achmad Nurrofiq Achmad Nurrofiq Adi Wicaksono, Nanda Adigama Tri Nugraha Aflich Yusnita Fitrianna Aflich Yusnita Fitrianna Agus Supriyanto Ahmad Abdul Mutholib Aji Susanto Amalia Zulvia Widyaningrum Amanda, Nabila Tri Ambarawati, Mika Amiratih Siti Aisyah Andhika, Niken Dwi Anggraira, Attilah Suci Annisa Swastika Annur, M. Firman Anwar Ardani Aprilia, Nabila Churin Arianto, Febri Arif Rahman Hakim Arif Rahman Hakim Arif Rahman Hakim Arif Rahman Hakim Arifa Apriliana Arifa Apriliana, Arifa Ariska Yuliana Putri Ariska Yuliana Putri Arsita Anggraeni Pramesti Arum Dwi Rahmawati Dwi Rahmawati, Arum Dwi Rahmawati Dwi Assyifa Lala Pratiwi Hamid Astuti, Arinda Tri Astuti, Indra Puji Atika Amalia Attilah Suci Anggraira Aulia Rizki Destarani Ayu Rahmawati Bastian Al Ravisi Berlyana Ayu Prasasti Brilliyanti, Fanny Brilliyanti, Fanny Budi Santosa Budi Santosa Budi Santosa Budi Usodo Budi Usodo Budi Usodo Budi Usodo Budi Usodo Budi Usodo Budi Usodo Budiyono Budiyono Budiyono Budiyono Budiyono Budiyono Budiyono Budiyono Budiyono Budiyono Budiyono Budiyono Budiyono Budiyono Budiyono, Budiyono Budiyono, Budiyono Danar Supriadi Desi Tri Utami, Desi Tri Diana Tri Purnamasari Dini Yuniarti Dwi Ambarwati, Dwi Dwi Retnowati Dwi Retnowati Dyah Auliya Agustina Endang Widiyastuti Era Hervilia Etika, Erdyna Dwi Evi Yunia Nugraheni Exacta, Annisa Prima Fajar Suryatama Farida Nurhasanah Fhadilla, Nahdatul Fitri Apriyani Pratiwi, Fitri Apriyani Fitri Era Sugesti Fitria, Camelina Fitriana Anggar Kusuma Fitriana, Laila Getut Pramesti Giant Aprisetyani Giant Aprisetyani H Hartatik, H Hendriyanto, Agus Hervilia, Era Hidayati, Aulia Maulani Syifa Nur Husna Afanyn Khoirunissa Iffah, Rona Dhiya Layli Ikrar Pramudya Ikrar Pramudya, Ikrar Imam Sujadi Indra Raditya , Dionisius Intan Novia Sari Intan Novia Sari Irwan Susanto Irwan Susanto Isnaini, Bayutama Isnandar Slamet Isnandar Slamet Isnandar Slamet, Isnandar Kadar, Jimmy Abdel Karina Pramitasari Karina Pramitasari, Karina Kartikaningtyas, Nafiqoh Elsa Katherine Her Pratiwi Khafittulloh Viqriah Khafittulloh Viqriah, Khafittulloh Khoiriyah, Nor Kumarahadi, Brigitta Melati Kurnianto, Iwan Kurniasih, Rini Kurniati, Edy Dwi Lestari, Fajar Lina Muawanah, Lina Mahmudah Titi Muanifah Mahmudah Titi Muanifah Mahmudati, Rina Maratu Shalikhah Maratu Shalikhah, Maratu Mardiyana Mardiyana Marfuah, Ismiyati Mida Nurani Mika Ambarawati Mohamad Nur Fauzi Muhammad Bayu Nirwana Muhammad Wildan Fadilah Mulyadi Mulyadi Mulyadi Mulyadi Nabila Churin Aprilia Ningsih, Maya Kristina Nirwana, Muhammad Bayu Nopiana, Medi Nor Khoiriyah Novi Dya Meylasari Nugraha, Titis Jati Nugroho, Purwo Setiyo Nuraini, Latifah Nurudin, M. Pardede, Hilman Ferdinandus Permatasari, Dinda Agnes Prabowo, Haniftia Haqqiendini Pramesti, Arsita Anggraeni Pratiwi, Fitri Apriyani pratiwi, hasih Proborini, Ellen Purna Bayu Nugroho Purnamasari, Anita Pusaka, Semerdanta Putra Adi Wibowo Putra Adi Wibowo Rachmawati, Intan Rahmaningrum, Asti Rahmita Ika Sari Raodatul Jannah Raodatul Jannah Rara Sugiarti Ratih Kusumaningrum Ratih Kusumaningrum Reka Pramukti Reka Pramukti, Reka Respati wulan Respatiwulan, Respatiwulan Retno Anggraheni Ria Wahyu Wijayanti Rina Mahmudati Riyadi Riyadi Riyadi Riyadi Riyanto, Nandyar Fisthi Riyanto, Nandyar Fisthi Rizky Wahyudi Salsabila, Nais Qonita Sandhy Prasetyo Tito Kurniawan Sandhy Prasetyo Tito Kurniawan, Sandhy Prasetyo Satrio Wicaksono Sudarman Savitri, Maria Endah Savitri, Maria Endah Septiana Wijayanti Setiaputra, Felix Indra Sri Adiningsih Sri Sulistijowati Handajani Sugesti, Fitri Era Sugianto Sugianto Sugiyanto - Sugiyanto Sugiyanto Sugiyanto Sugiyanto Sugiyanto, Sugiyanto Sulandari, Winita Sumantri, Astri Wiliastri Susilotomoa, Dhestahendra Citra Titik Yuniarti Triyanto Triyazulfa, Azkiya Umi Fadlilah, Umi Umi Supraptinah Umi Supraptinah, Umi Veronica Sri Wigiyanti Veronica Sri Wigiyanti Very Hendra Saputra Virlina Zuhanisani Wahyuni, Fina Tri Wahyuni, Fina Tri Wahyuningtyas, Widyana Wardani, Endang Purwati Wardani, Endang Purwati Widyana Wahyuningtyas Wihasti Imas Priyandani Wihasti Imas Priyandani, Wihasti Imas Winita Sulandari Winita Sulandari Winita Sulandari Wulandari, Lina Yadi Ardiawan Yadi Ardiawan Yudho Yudhanto Yudho Yudhanto Yudho Yudhanto, Yudho Yuliana Susanti Yuliana Susanti, Yuliana Yuniarti, Titik Yusnita Rahmawati Yusnita Rahmawati Zainal Arifin Zuhanisani, Virlina Zuhdha Basofi Nugroho Zuhdha Basofi Nugroho, Zuhdha Basofi Zukhronah, Etik