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All Journal Epsilon: Jurnal Matematika Murni dan Terapan JURNAL DERIVAT: JURNAL MATEMATIKA DAN PENDIDIKAN MATEMATIKA Jurnal technoscientia Jurnal Penelitian Sains ABDIMAS SILIWANGI Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming Abdimasku : Jurnal Pengabdian Masyarakat JURNAL TEKNOLOGI TECHNOSCIENTIA ABDIMASY: Jurnal Pengabdian dan Pemberdayaan Masyarakat Parameter: Journal of Statistics Bulletin of Applied Mathematics and Mathematics Education Jnanadharma Jurnal Statistika Industri dan Komputasi
Kris Suryowati, Kris
Jurusan Statistika, Fakultas Sains Terapan, Institut Sains & Teknologi AKPRIND Yogyakarta
Religion Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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PENERAPAN PENEMPATAN NILAI EIGEN INFINITE SISTEM SINGULAR PADA PENYELESAIAN PERSAMAAN POLINOMIAL MATRIKS BERBENTUK [Es – A] X + B Y = U(s) Suryowati, Kris; Setyawan, Yudi
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 5 No 1 Agustus 2012
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (401.265 KB) | DOI: 10.34151/technoscientia.v5i1.512

Abstract

Problem of solvability of polynomial equations and matrix eigenvalue relation to the placement of an infinite state-feedback is important to learn because it deals with the properties of dynamic and static systems. In this case discussed the problem with putting the infinite eigenvalue decomposition of the standard, then the results are applied to problem solving matrix polynomial equations. On eigenvalue placement or placement of the poles, the problem is determining the state feedback matrix K such that det [Es - A + BK] = a ≠ 0, in a and s with each other independent. Singular linear system that has an infinite eigenvalue will be formed in such infinite eigenvalues ​​are placed so that the system has no eigenvalues ​​of infinite state by providing appropriate feedback. Problems on infinite eigenvalue assignment can be attributed to the determination of polynomial equation solution in the form of matrix [Es - A] X + BY = U(s) for a matrix U(s) with detU(s) = a, so that necessary and sufficient conditions of
ANALISIS OBSERVASI KEADAAN SISTEM SINGULAR LTI ATAS DEKOMPOSISI STANDAR Suryowati, Kris
JURNAL TEKNOLOGI TECHNOSCIENTIA Academia Ista Vol 11 Edisi Khusus Oktober 2006
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (219.46 KB)

Abstract

The singular system LTI is called linear singular system time invariant which its not be influence of the time changes. It is assumed to be the system is regular and rank E< n, so can be transform to form the standard decomposition. Furthermore, we discuss characterization the singular state observer and there is determine the necessary and sufficient condition for the state observer singular of system. Suppose that first sub systems in the decomposition standard system is observable. Then singular system LTI has a singular state observer. Singular system has a singular state observer if and only if it is detectable.
Prediksi Kurs Rupiah Terhadap Dolar Dengan FTS-Markov Chain Dan Hidden Markov Model Jatipaningrum, Maria Titah; Suryowati, Kris; Un, Libertania Maria Melania Esti
Jurnal Derivat: Jurnal Matematika dan Pendidikan Matematika Vol 6, No 1 (2019): Jurnal Derivat (Juli 2019)
Publisher : Pendidikan Matematika Universitas PGRI Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (825.215 KB) | DOI: 10.31316/j.derivat.v6i1.334

Abstract

Hidden Markov model is a development of the Markov chain where the state cannot be observed directly (hidden), but can only be observed, a set of other observations and combination of fuzzy logic and Markov chain to predict Rupiah exchange rate against the Dollar. The exchange rate of purchasing and exchange rate of saling is divided into four states, namely down large, down small, small rise, and large rise are symbolized respectively S1, S2, S3, and S4. Probability of sequences of observation for 3 days later is computed by forwarding and Backward Algorithm, determine the hidden state sequence using the viterbi algorithm and estimate the HMM parameters using the Baum Welch algorithm. The MAPE result exchange rate of purchase of FTS-Markov Chain is 1,355% and the exchange rate of sale of FTS-Markov Chain is 1,317%. The sequences of observation which optimized within exchange rate of  purchase is X* = {S3,S3,S3}, within exchange rate of sale is also X* = {S3,S3,S3}. Keywords: Exchange rate, FTS-Markov Chain, Hidden Markov Model
PENERAPAN PENEMPATAN NILAI EIGEN INFINITE SISTEM SINGULAR PADA PENYELESAIAN PERSAMAAN POLINOMIAL MATRIKS BERBENTUK [Es – A] X + B Y = U(s) Suryowati, Kris; Setyawan, Yudi
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 5 No 1 Agustus 2012
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v5i1.512

Abstract

Problem of solvability of polynomial equations and matrix eigenvalue relation to the placement of an infinite state-feedback is important to learn because it deals with the properties of dynamic and static systems. In this case discussed the problem with putting the infinite eigenvalue decomposition of the standard, then the results are applied to problem solving matrix polynomial equations. On eigenvalue placement or placement of the poles, the problem is determining the state feedback matrix K such that det [Es - A + BK] = a ≠ 0, in a and s with each other independent. Singular linear system that has an infinite eigenvalue will be formed in such infinite eigenvalues ​​are placed so that the system has no eigenvalues ​​of infinite state by providing appropriate feedback. Problems on infinite eigenvalue assignment can be attributed to the determination of polynomial equation solution in the form of matrix [Es - A] X + BY = U(s) for a matrix U(s) with detU(s) = a, so that necessary and sufficient conditions of
ANALISIS OBSERVASI KEADAAN SISTEM SINGULAR LTI ATAS DEKOMPOSISI STANDAR Suryowati, Kris
JURNAL TEKNOLOGI TECHNOSCIENTIA Academia Ista Vol 11 Edisi Khusus Oktober 2006
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The singular system LTI is called linear singular system time invariant which its not be influence of the time changes. It is assumed to be the system is regular and rank E< n, so can be transform to form the standard decomposition. Furthermore, we discuss characterization the singular state observer and there is determine the necessary and sufficient condition for the state observer singular of system. Suppose that first sub systems in the decomposition standard system is observable. Then singular system LTI has a singular state observer. Singular system has a singular state observer if and only if it is detectable.
Peningkatan Potensi Siswa Melalui Pelatihan Test Potensi Akademik (TPA) Rokhana Dwi Bekti; Maria Titah Jatipaningrum; Kartiko Kartiko; Kris Suryowati
Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming Vol 1, No 2 (2018): Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstormin
Publisher : Politeknik Harapan Bersama

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (499.29 KB) | DOI: 10.30591/japhb.v1i2.954

Abstract

AbstrakTest Potensi Akademik (TPA) memiliki peran penting untuk mengukur dan menemukan SDM yang berkualitas berdasarkan kemampuan seseorang di bidang keilmuan atau akademis. Tes ini sangat dibutuhkan dalam penerimaan mahasiswa baru maupun memasuki dunia kerja. Dengan demikian siswa tingkat SMA/sederajat perlu mempersiapkan diri untuk menghadapi tes ini. Sebagai bentuk dukungan kepada peningkatan potensi siswa maka Tim Pengabdian Kepada Ma­syarakat (PKM) dari dosen Jurusan Statistika, Fakultsas Sains Terapan, Institut Sains & Teknologi AKPRIND Yogyakarta mengadakan pelatihan persiapan menghadapi tes TPA kepada siswa SMA Muhammadiyah 1 Prambanan. Materi yang diberikan adalah tentang pengetahuan peran dan fungsi TPA serta pengerjaan berbagai jenis soal TPA. Berdasarkan hasil keseluruhan evaluasi, dapat diketahui bahwa target uta­ma dari pelaksanaan pelatihan telah tercapai. Peserta lebih memahami tujuan dan jenis-jenis TPA, serta mampu mengerjakan beberapa soal TPA dengan baik. Kata kunci— Potensi siswa, Pelatihan, Test Potensi Akademik
Analisis Sistem Linier Singular (E,A,B,C) Kris Suryowati
Jurnal Penelitian Sains No 11 (2002)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3675.914 KB) | DOI: 10.56064/jps.v0i11.317

Abstract

Dalam penelitian ini bertujuan untuk menganalisis sistem linier singular (E,A,B,C) yang berbentuk:Ex(t) = Ax(t) + Bu(t)Y(t) = Cx(t)Yang berkaitan dengan syarat perlu dan syarat cukup keberadaan dan ketunggalan solusinya, jika matriks pencil (sE-A) regular. Dengan demikian sistem dapat dibawa ke dalam bentuk dekomposisi standar yang terdiri dari dua subsistem yaitu subsistem pertama (yang disebut subsistem lambat) dan subsistem kedua (yang disebut subsistem cepat). Selanjutnya solusi sistem dapat ditentukan melalui sistem dekomposisi standar yang terbentuk.
Pemberian Sosialisasi dan Bantuan Pencegahan Covid-19 bagi Warga Malangan Kota Yogyakarta Berdasarkan Analisis Tingkat Pengetahuan Rokhana Dwi Bekti; Kris Suryowati; Hadi Prasetyo Suseno
ABDIMASKU : JURNAL PENGABDIAN MASYARAKAT Vol 3, No 3 (2020): September 2020
Publisher : LPPM UNIVERSITAS DIAN NUSWANTORO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33633/ja.v3i3.111

Abstract

Wabah Covid-19 yang telah melanda sangat perlu dipahami oleh penduduk di Indonesia, khususnya bagi warga di RT 37/ RW 13 Malangan, Kelurahan Giwangan, Kecamatan Umbulharjo, Kota Yogyakarta, DIY. Berdasarkan hasil analisis, dapat diketahui bahwa sebagian besar warga telah memahami gejala dan pencegahan Covid-19. Sebagian besar warga telah melakukan langkah-langkah pencegahan, namun tidak sedikit pula yang belum melakukannya. Oleh karena itu, tim melakukan kegiatan pengabdian dengan melakukan sosialisasi pengetahuan dan pecegahan, serta pemberian bantuan pencegahan. Kegiatan ini dilakukan selama seminggu di April 2020. Warga telah mendapatkan manfaat dari kegiatan ini mengingat mereka juga belum memiliki peralatan pencegahan penularan yang lengkap.
Pemberian Alat Pengemasan dan Pelatihan Peningkatan Kualitas Makanan Khas Geti di Desa Purwosari Kabupaten Wonogiri Nurafidah Nurafidah; Tegar Rezki Pangestu; Kris Suryowati; Rokhana Dwi Bekti
ABDIMASY: Jurnal Pengabdian dan Pemberdayaan Masyarakat Vol. 2 No. 2 (2021): ABDIMASY: Jurnal Pengabdian dan Pemberdayaan Masyarakat
Publisher : STAI Auliaurrasyidin Tembilahan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46963/ams.v2i2.417

Abstract

There are so many types of traditional food in Indonesia that have a unique taste and characterize the local culture. However, nowadays many traditional specialties are still unable to compete with modern foods such as Geti Wijen. Some of the things that cause it are promotions that have not been widely used in various media and the appearance of packaging that is less attractive. One of the geti wijen businesses is Geti Mrs. Atmo in Dusun Geneng, Purwosari, Wonogieri District. This business has an unattractive packaging because the packaging process still uses simple tools and materials, namely plastic and wax. Therefore, the team provided a packaging tool assistance program and usage training to improve packaging quality. Implementation methods include planning activities, providing tools, implementing training, and evaluating programs. This program has provided many benefits for Mrs. Atmo in improving the quality of products that are able to compete in the market. Partners have packaging tools and attractive packaging designs so that the packaging process is faster.
PROGRAM PENANAMAN SAYURAN BAGI WARGA RT 37 MALANGAN, KOTA YOGYAKARTA SEBAGAI UPAYA PENGHIJAUAN DAN MENDUKUNG EKONOMI Rokhana Dwi Bekti; Kris Suryowati; Hadi Prasetyo Suseno
Abdimas Siliwangi Vol 3, No 2: Juli 2020
Publisher : IKIP SILIWANGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/as.v3i2p%p.4661

Abstract

The problem of environmental pollution still often occurs in urban areas. One of them is in RT 37 / RW 13 Malangan, Giwangan, Umbulharjo District, Yogyakarta City, DIY. The team chose this partner on the grounds that the partner needed treatment to reduce air pollution, because the location is close to Giwangan Terminal and South Ring Road which is full of transportation. In addition, the community needs an economic strategy for how to meet the daily needs of Covid-19. The solution offered is a vegetable planting program for residents so that they can independently meet their daily needs and become one of the greening steps to reduce air pollution. The methods of implementation carried out include planning activities, program socialization, training and provision of vegetable seedlings, to program evaluation. This activity went well, the partner community gave a positive response and got many benefits. The community has planted vegetables in their homes so that the environment becomes beautiful, comfortable, beautiful, and the community can meet the daily needs of the vegetables.
Co-Authors Alfriyani R D Klau Eka Christy Erlin Koni Ngago Daga Etika Permata Sari Etika Permatasari Febriani Astuti Hadi Prasetyo Suseno Inggit Fatika Inggit Fatika Jatipaningrum, Maria Titah JP, Maria Titah Kartiko Kartiko Mardiyanti Dendo Maria Titah Jatipaningrum Maria Titah JP Mercynanda Yuliany Alang Muhammad Sholeh Nasution, Nurzaidah Noviana Pratiwi Nurafidah Nurafidah Nurafidah Octaviana, Dita Rokhana Dwi Bekti Rokhana Dwi Bekti Rokhana Dwi Bekti Rokhana Dwi Bekti Setyawan, Yudi Setyawan, Yudi Setyawan, Yudi Suci Eka Azhari Tegar Rezki Pangestu Un, Libertania Maria Melania Esti Yudi Setyawan