Publications

Baehera, S., Syafitri, U. D., & Soleh, A. M. (2023). Evaluasi Perbandingan Kinerja Algoritma Cheng and Church Biclustering Terhadap Algoritma Clustering Klasik K-Means untuk Mengidentifikasi Pola Distribusi Barang Ekspor Indonesia. Jurnal Statistika Dan Aplikasinya, 7(2), 149–161.

Septianingrum, T. W., Syafitri, U. D., & Soleh, A. M. (2023). Penerapan Diskriminan Kernel pada Komponen Kimia Aktif Tanaman Obat Herbal (Kunyit, Temulawak, dan Bangle): Authors attend on Friday, October 15th, 2023, at 10.30 am. Frontier in Sustainable Agromaritime and Environmental Development Conference.

Rafi, M., Devi, A., Syafitri, U., Heryanto, R., Suparto, I., Amran, M., Rohman, A., Prajogo, B., & Lim, L. (2020). Classification of Andrographis paniculata extracts by solvent extraction using HPLC fingerprint and chemometric analysis. BMC Research Notes, 13(1), 1–6.

Lukiswati, I., Djuraidah, A., & Syafitri, U. D. (2020). ANALISIS REGRESI DATA PANEL PADA INDEKS PEMBANGUNAN GENDER (IPG) JAWA TENGAH TAHUN 2011-2015. Indonesian Journal of Statistics and Its Applications, 4(1), 89–96.

Goos, P., Syafitri, U., Sartono, B., & Vazquez, A. (2020). A nonlinear multidimensional knapsack problem in the optimal design of mixture experiments. European Journal of Operational Research, 281(1), 201–221.

Heryanto, R., Syafitri, U., Anggraini, C., Septaningsih, D., & Izzati, M. (2020). Chemometrics role on optimizing industrial processes or product characteristics: The comparison of D-optimal and I-optimal mixture designs on the prediction of dye mixture composition. AIP Conference Proceedings, 2243, 030008.

Rafi, M., Devi, A., Syafitri, U., Heryanto, R., Suparto, I., Amran, M., Rohman, A., Prajogo, B., & Lim, L. (2020). Classification of Andrographis paniculata extracts according to solvent extraction by HPLC fingerprint analysis and chemometrics.

Choiriyah, E., Syafitri, U. D., & Sumertajaya, I. M. (2020). PENGEMBANGAN MODEL PERAMALAN SPACE TIME: Studi Kasus: Data Produksi Padi di Sulawesi Selatan. Indonesian Journal of Statistics and Its Applications, 4(4), 579–589.

Faradila, A., Syafitri, U. D., & Sumertajaya, I. M. (2020). PENGGEROMBOLAN SUBSEKTOR INDUSTRI BERDASARKAN PERKEMBANGAN INDEKS PRODUKSI MENGGUNAKAN PREDICTION-BASED CLUSTERING. Indonesian Journal of Statistics and Its Applications, 4(3), 419–431.

Amri, M., Sumertajaya, I., & Syafitri, U. (2020). Comparison of multinomial logistic discriminant analysis (mlgda) and classification and regression tree (cart) performance in classifying the impact of working children. Journal of Physics: Conference Series, 1490, 012033.

Rafi, M., Fikriah, S. A., Khuluk, R. H., & Syafitri, U. D. (2020). Discrimination of cassava, taro, and wheat flour using near-infrared spectroscopy and chemometrics. Jurnal Kimia Sains Dan Aplikasi, 23(10), 360–364.

Afriani, R. F., Masjkur, M., & Syafitri, U. D. (2019). Penerapan SMOTE dalam Pemodelan CHAID pada Data Keberhasilan Mahasiswa PPKU IPB. Xplore: Journal of Statistics, 8(1).

Wigena, A. H., Soleh, A. M., Syafitri, U. D., & others. (2019). Algorithms for i-optimal designs for ordinal response: a literature approach. Journal of Physics: Conference Series, 1317, 012001.

Rahayu, W., Syafitri, U., & Soleh, A. (2019). D-optimal design for ordinal responses in mixture experiments. Journal of Physics: Conference Series, 1317, 012017.

Djuraidah, A., Syafitri, U., & Handayani, L. (2019). Estimation of Factors Affecting Gross Regional Domestic Product Using Geographically Weighted Panel Regression (Case Study: Gross Regional Domestic Product in Central Java 2011-2015). INTERNATIONAL JOURNAL OF ECOLOGICAL ECONOMICS & STATISTICS, 40(1), 86–94.

Tazliqoh, A., Wigena, A., & Syafitri, U. (2019). Fractional factorial and D-optimal design for discrete choice experiments (DCE). IOP Conference Series: Earth and Environmental Science, 299, 012067.

Rochayati, I., Syafitri, U. D., Sumertajaya, I. M., & others. (2019). KAJIAN MODEL PERAMALAN KUNJUNGAN WISATAWAN MANCANEGARA DI BANDARA KUALANAMU MEDAN TANPA DAN DENGAN KOVARIAT. Indonesian Journal of Statistics and Its Applications, 3(1), 18–32.

Andani, W., Wigena, A., & Syafitri, U. (2019). Linear model analysis for ordinal response in a mixture experiment. Journal of Physics: Conference Series, 1317, 012018.

Sapitri$^1$, E. W., Batubara, I., & Syafitri, U. D. (2019). HAY AT I.

Sitinjak, M. A., Syafitri, U. D., & others. (2019). A Split Plot Design for an Optimal Mixture Process Variable Design of a Baking Experiment. Journal of Physics: Conference Series, 1417, 012018.

Sapitri, E. W., Batubara, I., & Syafitri, U. D. (2019). Optimization Extraction of Xylocarpus granatum Stem as Antioxidant and Antiglycation. HAYATI Journal of Biosciences, 26(2), 50.

Munthe, A. D., Sumertajaya, I. M., & Syafitri, U. D. (2018). PENGGEROMBOLAN DESA/KELURAHAN BERDASARKAN INDIKATOR KEMISKINAN DENGAN MENERAPKAN ALGORITMA TSC DAN K-PROTOTYPES. Indonesian Journal of Statistics and Its Applications, 2(2), 63–76.

Hijryani, F., Sartono, B., & Syafitri, U. D. (2018). Rapid Identification of Fresh Milk Customer Segmentation. Xplore: Journal of Statistics, 7(3).

Darsono, T. A., Syafitri, U. D., & Alamudi, A. (2018). Segmentasi Mahasiswa S1 IPB terhadap Sistem Peminjaman Sepeda. Xplore: Journal of Statistics, 2(1), 17–24.

Arina, F., Wigena, A. H., Sumertajaya, I. M., & Syafitri, U. (2018). Split Plot Mixture Process Variable Experiment on Steel Slag Concrete. IOP Conference Series: Earth and Environmental Science, 187, 012049.

Aryani, S., Aidi, M. N., & Syafitri, U. D. (2018). Analysis of The Profitability of Islamic Banking Using Arimax Model and Regression with Arima Errors Model.

Arina, F., Wigena, A. H., Sumertajaya, I. M., & Syafitri, U. (2018). Mixture Designs for Quadratic Models with Constrained Experimental Regions on Ground Granulated Blast Furnace Slag Concrete. Applied Mathematical Sciences, 12(26), 1251–1258.

Andriyadi, A., Sukmawati, A., & Syafitri, U. D. (2018). Peran Komitmen Organisasi dalam Menurunkan Pengaruh Negatif Turnover Intention terhadap Kinerja Karyawan (Studi kasus: GroupM Indonesia). Jurnal Manajemen Dan Organisasi, 9(2), 81–90.

Nurhajawarsi, N., Rafi, M., Syafitri, U. D., & Rohaeti, E. (2018). L-Histidine-Modified Silica from Rice Husk and Optimization of Adsorption Condition for Extractive Concentration of Pb (II). The Journal of Pure and Applied Chemistry Research, 7(2), 198.

Darsono, T. A., Syafitri, U. D., & Alamudi, A. (2018). The Segmentation of Undergraduate Students IPB on Bicycle Borrowing System. Xplore: Journal of Statistics, 7(3).

Sartika, W., Susetyo, B., & Syafitri, U. D. (2017). Spatial panel data models of aquaculture production in West Sumatra province with random-effects. AIP Conference Proceedings, 1827, 020008.

Khikmah, L., Wijayanto, H., & Syafitri, U. (2017). Modeling Governance KB with CATPCA to Overcome Multicollinearity in the Logistic Regression. Journal of Physics: Conference Series, 824, 012027.

Muslim, M. I., Sukmawati, A., & Syafitri, U. D. (2017). Implementasi organisasi pembelajar bagi keberlanjutan UKM klaster kerajinan batik di Cirebon. Jurnal Manajemen Teknologi, 16(3), 294–309.

Goos, P., Jones, B., & Syafitri, U. (2016). I-optimal design of mixture experiments. Journal of the American Statistical Association, 111(514), 899–911.

Warawati, A. D., Susetyo, B., & Syafitri, U. D. (2016). Variable Selection on Sensus Pertanian 2013 to Determine Relevant Variable on Agricultural GRDP 2013 using Partial Least Square Regression. Proceeding of ICMSE, 3(1), M–28.

Syafitri, U., Sartono, B., & Goos, P. (2015). I-optimal design of mixture experiments in the presence of ingredient availability constraints. Journal of Quality Technology, 47(3), 220–234.

Rohaeti, E., Rafi, M., Syafitri, U. D., & Heryanto, R. (2015). Fourier transform infrared spectroscopy combined with chemometrics for discrimination of Curcuma longa, Curcuma xanthorrhiza and Zingiber cassumunar. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 137, 1244–1249.

Syafitri, U. D. (2015). Optimal Design ofMixture Experiments. Universiteit Antwerpen (Belgium).

Sari, Y. W., Syafitri, U., Sanders, J. P., & Bruins, M. E. (2015). How biomass composition determines protein extractability. Industrial Crops and Products, 70, 125–133.

Syafitri, U., Sartono, B., & Goos, P. (2015). D-and I-optimal design of mixture experiments in the presence of ingredient availability constraints.

Goos, P., & Syafitri, U. (2014). V-optimal mixture designs for the qth degree model. Chemometrics and Intelligent Laboratory Systems, 136, 173–178.

Goos, P., Jones, B., & Syafitri, U. (2013). I-optimal mixture designs.

Pertiwi, E. D., Syafitri, U. D., & Angraini, Y. (2011). PREFERENSI MAHASISWA IPB TERHADAP MATA KULIAH METODE STATISTIKA MENGGUNAKAN ANALISIS KONJOIN. Forum Statistika Dan Komputasi, 16.

Khalil, M., Darusman, L. K., & Syafitri, U. D. (2011). Application of fractional factorial design to optimize extraction method of artemisinin from Artemisia annua. ScienceAsia, 37(3), 219–224.

Dewi, N. K., Syafitri, U. D., & Mulyadi, S. Y. (2011). Penerapan Metode Random Forest dalam Driver Analysis. Forum Statistika Dan Komputasi, 16.

Sihombing, B., Syafitri, U. D., & others. (2011). Jaringan syaraf tiruan dan algoritma genetika dalam pemodelan kalibrasi (studi kasus: tanaman obat temulawak). Forum Statistika Dan Komputasi, 16.

Andanawari, A. G., Sumertajaya, I., & Syafitri, U. (2010). Faktor-faktor yang mempengaruhi minat siswa melanjutkan pendidikan ke perguruan tinggi dengan menggunakan regresi logistik (Studi kasus: Minat siswa SMU/sederajat di Kabupaten Garut terhadap STAI Al-Musaddadiyah)[Factors that affect the interests of the students continue their education to college using logistic regression (Case study: The interest of high school students in Garut to Al-Musaddadiyah Islamic Religious School)](Undergraduate thesis). Tesis. Bogor: Institut Pertanian Bogor.

Sartono, B., & Syafitri, U. D. (2010). Metode Pohon Gabungan: Solusi Pilihan Untuk Mengatasi Kelemahan Pohon Regresi dan Klasifikasi Tunggal. Forum Statistika Dan Komputasi, 15.

Sartono, B., & Syafitri, U. (2010). Ensemble Tree: an Alternative toward Simple Classification & Regression Tree. Forum Statistika Dan Komputasi, 15, 1–7.

Atti, A., Sunarlim, B., & Syafitri, U. D. (2008). Analisis Faktor Risiko Penyakit Jantung Koroner Menggunakan Metode Regresi Logistik Dan Chaid. Jurnal Mat Stat, 8(2), 138–148.