Sofia Debi Puspa

ORCID: 0009-0008-5670-8987
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Research Areas
  • Management and Optimization Techniques
  • Decision Support System Applications
  • Multimedia Learning Systems
  • Data Mining and Machine Learning Applications
  • AI in cancer detection
  • Medical Image Segmentation Techniques
  • Blockchain Technology in Education and Learning
  • Gene expression and cancer classification
  • Mathematics Education and Pedagogy
  • Edcuational Technology Systems
  • SMEs Development and Digital Marketing
  • Induction Heating and Inverter Technology
  • Operations Management Techniques
  • Laser and Thermal Forming Techniques
  • Education and Character Development
  • Heat Transfer and Boiling Studies
  • Technology-Enhanced Education Studies
  • Customer churn and segmentation
  • Advanced Welding Techniques Analysis
  • Stock Market Forecasting Methods
  • Metal Forming Simulation Techniques
  • Bioinformatics and Genomic Networks
  • Urban Transport Systems Analysis
  • Retinal Imaging and Analysis
  • Quality and Supply Management

Universitas Trisakti
2021-2024

University of Indonesia
2018-2023

Penelitian ini bertujuan untuk mengetahui faktor-faktor yang berpengaruh signifikan terhadap kemampuan pemahaman konsep matematis mahasiswa dalam pembelajaran jarak jauh pada masa pandemi covid-19. Faktor dimaksud adalah faktor intrinsik dan ekstrinsik. yaitu motivasi belajar mahasiswa, sedangkan ekstrinsik peran dosen, fasilitas lingkungan keluarga. Jenis penelitian merupakan kuantitatif menggunakan data primer dari kuesioner. Aplikasi perangkat lunak digunakan mengolah R-Studio berbasis...

10.31004/cendekia.v5i1.533 article ID Jurnal Cendekia Jurnal Pendidikan Matematika 2021-03-02

Welding aluminum and copper materials using friction stir spot welding (FSSW) is widely practiced. Although strong enough, it still produces keyhole shoulder marks, which are quite large due to the pin sizes. This study investigates joining of panels FSSW technique smaller shoulders pins in different shapes. The began by cutting 150 mm long, 50 wide, 5 thick. process was carried out at rotational speeds 900, 1200, 1500 rpm with tools several variations length. Pin lengths 0, 5, 7 diameters...

10.35814/asiimetrik.v6i1.5552 article EN cc-by-nc Jurnal ASIIMETRIK Jurnal Ilmiah Rekayasa & Inovasi 2024-01-31

Kompetensi Pengolahan Data Penelitian sangat diperlukan oleh pendidik terkait dengan kewajiban dalam penulisan naskah ilmiah sebagai prasyarat kenaikan pangkat. Guru ujung tombak kemajuan pendidikan di Indonesia diharapkan mempunyai pengetahuan yang bagus pengolahan data penelitian guna menambah kemampuan melukakan kegiatan tindakan. Bahasa R  merupakan perangkat lunak terpadu open source dapat digunakan untuk manipulasi data, kalkulasi, simulasi dan peragaan grafik. Dalam rangka...

10.62411/ja.v6i3.1567 article ID cc-by ABDIMASKU JURNAL PENGABDIAN MASYARAKAT 2023-09-30

This research was conducted to determine the effect of heat flux on frequency bubbles appearing in boiling ponds. All fluid movement pool is caused by natural convection currents. The consists four areas regime. division based value and difference between surface temperature heater fluid. Using a two-phase transfer unit (H654 P.A. Hilton machine), results showed that power used greatly influences process, besides that, volume water also affects duration process. Based tests using various...

10.35814/asiimetrik.v6i1.4812 article EN cc-by-nc Jurnal ASIIMETRIK Jurnal Ilmiah Rekayasa & Inovasi 2024-01-31

The TEG component, which operates on the Seebeck principle like a thermocouple, is widely used in market, with SP1848 27145 SA being one of most common types. However, experiments must be conducted to determine its coefficient, voltage, and power output when different heat cold sources. This research aims observe how change variations system temperature. To experiment, tested heater, water flow rates are varied for cooling. Furthermore, correlation between voltage ΔT has been determined...

10.35814/asiimetrik.v6i1.5561 article EN cc-by-nc Jurnal ASIIMETRIK Jurnal Ilmiah Rekayasa & Inovasi 2024-01-31

Revolusi Industri 4.0 membuat teknologi informasi berkembang dengan pesat sehingga membawa dampak yang sangat signifikan pada sektor industri. Pilar-pilar utama diantaranya Big Data, Artificial Intelligence, Cloud Computing, Internet of Things (IoT), dan lainnya. Dalam implementasi tersebut dibutuhkan persiapan SDM memiliki kemampuan penunjang seperti literasi data, digital, high skill , kolaborasi, analitis baik. Pengabdian kepada Masyarakat (PkM) ini bertujuan untuk penguatan data digital...

10.31284/j.adipati.2024.v3i2.6272 article ID other-oa Deleted Journal 2024-11-20

The centerless belt grinding machine that was previously designed at the Department of Mechanical Engineering Universitas Trisakti can be used for finishing machining products. However, it is not yet known how will perform on geometric characteristics product as a result process with machine. here are results measurements in cylindricality, roundness, and surface roughness. This research aims to determine machine's performance whether there significant differences process. Control chart...

10.35814/asiimetrik.v6i1.5554 article EN cc-by-nc Jurnal ASIIMETRIK Jurnal Ilmiah Rekayasa & Inovasi 2024-01-31

Regression analysis is a statistical method that aims to determine the relationship between one or more independent variables and dependent variable. Correlation expresses degree of linear two variables. The application regression correlation needed, especially for teachers, what factors influence students' understanding learning it can be seen how strongly variable influences other This Community Service Activity motivated by need educators analyze causes students's through data. partners...

10.25105/jamin.v6i1.17408 article EN Jurnal Abdi Masyarakat Indonesia (JAMIN) 2024-03-31

Lymphoma is cancer of the lymphatic system that includes spleen, thymus, lymph nodes, bone marrow, and other parts body caused by lymphocytes cells. This study aims to implement co-similarity measure in obtaining a non-overlapping significant bicluster lymphoma gene expression data. Our proposed technique based on χ -sim for clustering row (gene) column (condition). The process biclustering preceded pre-processing using min-max normalization, applied measure, partition each similarity matrix...

10.1063/1.5064219 article EN AIP conference proceedings 2018-01-01

ABSTRAKKomunikasi Vehicle to Infrastructure (V2I) memungkinkan kendaraan dapat terhubung ke berbagai macam infrastruktur. Dengan kondisi yang bergerak, maka lingkungan dilewati mempengaruhi parameter komunikasi. Implementasi modulasi adaptif pada skema V2I memperbolehkan sistem menggunakan berbeda untuk mengakomodasi perubahan lingkungan. Pada penelitian ini digunakan QPSK, 8PSK, dan 16-QAM dengan memanfaatkan reinforcement learning algoritma epsilon greedy menentukan berdasarkan level AWGN....

10.26760/elkomika.v9i3.716 article ID cc-by-sa ELKOMIKA Jurnal Teknik Energi Elektrik Teknik Telekomunikasi & Teknik Elektronika 2021-07-09

Similarity-based biclustering (SBB) algorithm consists of four main phases, transforming data, the construction row (gene) and column (condition) similarity matrices, clustering each simi...

10.1504/ijbra.2021.117934 article EN International Journal of Bioinformatics Research and Applications 2021-01-01

Cases of the COVID-19 pandemic are gradually decreasing every day in Indonesia, but impact has greatly affected various sectors, especially economy and business. Sales transactions have not yet reached company's target due to weak public purchasing power. The accuracy customer segmentation analysis attractive promo voucher offers needed increase opportunity for people's power a product. This study aimed predict level using random forest naïve Bayes methods case multi-class data...

10.31943/mathline.v8i4.532 article EN cc-by-sa Mathline Jurnal Matematika dan Pendidikan Matematika 2023-11-21

Pandemi Covid-19 memberikan dampak buruk terhadap sebagian besar UMKM di Indonesia, namun tidak bagi tenant rest area 72A. Adanya peraturan tambahan untuk pengguna fasilitas umum, mengakibatkan peningkatan jumlah kendaraan pribadi transportrasi antar kota. Kondisi ini dimanfaatkan dengan baik oleh pengelola KM 72A membangun dan memberdayakan masyarakat sekitar area. Namun karena keterbatasan sumber daya pengetahuan, beberapa dapat berkembang baik. Salah satunya adalah minimnya pengetahuan...

10.31284/j.adipati.2023.v2i1.3528 article ID Deleted Journal 2023-01-31

PT. Ganding Toolsindo selalu berusaha meningkatkan hasil produksinya untuk memenuhi kepuasan dan kepercayaan para pelanggan, akan tetapi pelanggan sering mengeluhkan bahwa perusahaan tidak dapat permintaan produk yang dipesannya, hal ini dikarenakan kendala dialami oleh perusahaan. Berdasarkan penelitian pendahuluan dilakukan dengan melakukan pengamatan secara langsung di lantai produksi didapati tercapainya rata – target produksi/hari adanya aktivitas bernilai tambah atau waste. tersebut,...

10.31284/j.adipati.2023.v2i1.3531 article ID Deleted Journal 2023-01-31

The Health Service Industry is one of the important and crucial industries to be maintained in order support welfare community. XYZ Pharmacy, which located Jakarta area, industrial companies engaged Services focuses on skin genital area. need for planning number purchases medicinal products Inventory at Pharmacy very important. It was found that there were problems with company, namely experiencing a large amount stock decreasing supplement so many expired lost customer trust. purpose this...

10.1145/3557738.3557870 article EN 2022-09-21


 Seiring dengan perkembangan Revolusi Industri 4.0 di Indonesia, banyak sektor yang berdampak akibat salah satunya yaitu pada bidang pendidikan. Dalam mewujudkan SDM unggul Indonesia mampu beradapatasi teknologi dibutuhkan kemampuan berpikir tingkat tinggi, kritis, kreatif dan inovatif. Selain itu, computational thinking, dasar pemrograman komputer (coding) serta analisis data statistik juga akan dibutuhkan. Tujuan dari kegiatan pelatihan coding adalah untuk meningkatkan pengetahuan...

10.25105/jamin.v4i2.14132 article ID Jurnal Abdi Masyarakat Indonesia (JAMIN) 2022-09-30
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