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All Journal ALGORITMA : JURNAL ILMU KOMPUTER DAN INFORMATIKA Jurnal Manajemen Bisnis dan Kewirausahaan INFOKUM Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences Jurnal Pengkajian Dhamma Jurnal Wilayah, Kota dan Lingkungan Berkelanjutan
Tommy Tommy
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Religion Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Environmental Science Social Sciences Transportation

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DUAL TREE HUFFMAN ENCODING IMPLEMENTATION TO REDUCE LOW FREQUENCY BIT CODES Tommy Tommy
INFOKUM Vol. 9 No. 2, June (2021): Data Mining, Image Processing and artificial intelligence
Publisher : Sean Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (261.016 KB)

Abstract

Huffman encoding is a compression algorithm that uses symbol encoding using a simpler bit substitution based on the frequency of the symbol. A symbol will be represented with much fewer bits if it has a large frequency. Conversely, symbols with less frequency will be encoded with bits of greater length. The bit code for symbols with lower frequencies often has a very long size which sometimes causes the compressed file size to be larger than the original file. This study develops the implementation of two separate Huffman trees by dividing the symbol list into two lists, each of which will form a bit code in parallel. This implementation is able to minimize the length of the symbol bit code, especially in symbols with low frequencies so as to increase the compression ratio for several types of content which is become the weakness of the original Huffman.
The Effect of Current Ratio (CR), Firm Size (FS), Return on Equity (ROE), and Earning Per Share (EPS) on the Stock Prices of Manufacturing Companies listed in Indonesia Stock Exchange in the 2014-2018 Period Yeni Ariesa; Tommy Tommy; Jane Utami; Intan Maharidha; Nanda Ciptara Siahaan; Nelson Boas Nainggolan
Budapest International Research and Critics Institute (BIRCI-Journal): Humanities and Social Sciences Vol 3, No 4 (2020): Budapest International Research and Critics Institute November
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birci.v3i4.1286

Abstract

This study aims to determine the effect of Current Ratio on stock prices, the effect of Firm Size on stock prices, the effect of Return On Equity on Stock Prices, the effect of Earning Per Share on Stock Prices, and the influence of Current Ratio, Firm Size, Return On Equity, and Earning Per Share simultaneously on stock prices in the 5 year period, 2014-2018. This study uses a quantitative approach with a descriptive statistical analysis type. The population in this study amounted to 150 companies. This study uses financial statement data with time series for the last 5 years published from www.idx.co.id. In this study, the sample selection used purposive sampling technique. The sample of this study contained 49 companies in the last 5 years with a total sample quantity of 245 manufacturing companies. The results of this study indicate that partially Current Ratio and Return On Equity have no and insignificant effect on stock prices of manufacturing companies. Partially Firm Size and Earning Per Share have a positive and significant effect on stock prices of manufacturing companies. Meanwhile, the independent variable Current Ratio, Firm Size, Return On Equity, and Earning Per Share simultaneously have a significant effect on the variable stock price of manufacturing companies.
Analisis Parameter Kompresi Algoritma Elias Omega Code dan Fibonacci Code Pada File Digital Ibrahim Hasan; Tommy Tommy; Nenna Irsa Syahputri
ALGORITMA : JURNAL ILMU KOMPUTER DAN INFORMATIKA Vol 5, No 1 (2021): April 2021
Publisher : UIN Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30829/algoritma.v5i1.9069

Abstract

The need for greater storage capacity is the cause of the emergence of various compression techniques.By compressing, large data will be reduced in size so as to save storage capacity. In this research, usingthe Elias Omega Code and Fibonacci Code algorithms, the performance will be measured with the ratioof compression, compression ratio and space saving in digital text files. Compression is done by readingthe string in a digital text file, then the Elias Omega Code algorithm and the Fibonacci Code algorithmcreate a string code and perform the compression process. From the final result of the compression,files with extension * .EB and * .FB contain character information and Bit String from the compressionresult that can be decompressed. From the output of the decompression is the original digital text filethat is saved with the file extension * .txt. In testing this system, a sample is used, namely a stringconsisting of one type of character stored in a digital text file with the extension * .txt. From thecompression process on digital file character strings, the Fibonacci Code algorithm is superior in termsof compression ratio of compression with an average of 1.72, compression ratio with an average of 57%and space saving of an average of 42%.Keywords: analysis, compression, text, Elias Omega Code, Fibonacci Code
Pengaruh Kepuasan Konsumen, Harga, Kualitas Produk, Dan Promosi Terhadap Loyalitas Merek Alat Angkat / Crane Xyz Pada Pt.Abc Tommy Tommy
Jurnal Manajemen Bisnis dan Kewirausahaan Vol 2, No 2 (2018): Jurnal Manajemen Bisnis Dan Kewirausahaan
Publisher : Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (490.987 KB) | DOI: 10.24912/jmbk.v2i2.4833

Abstract

The research aims to determine the effect of customer satisfaction, price, product quality and promotion of brand loyalty of PT ABC lifting equipment (crane). The tool used to obtain the data is a questionnaire using Likert scale. Sampling technique is purposive sampling that is technique of determining sample with certain consideration. The sample in this research is some of PT.ABC consumers in Indonesia which amounted to 50 people, but only 43 respondents who answered this questionnaire. The results show that customer satisfaction has a significant influence on brand loyalty, while price, product quality and promotion have no significant effect on brand loyalty.
Identifikasi Penyebaran Bencana Longsor Di Kecamatan Sentani Kota, Kabupaten Jayapura Predy Taplo; Monita Y. Beatrick Wambrauw; Tommy Tommy
JURNAL WILAYAH, KOTA DAN LINGKUNGAN BERKELANJUTAN Vol. 3 No. 1 (2024): JURNAL WILAYAH, KOTA DAN LINGKUNGAN BERKELANJUTAN
Publisher : Fakultas Teknik Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58169/jwikal.v3i1.297

Abstract

Landslides are natural disasters that can result in loss of life and property. Therefore, it is necessary to carry out inventory research on areas prone to landslides. The model applied to determine the point of distribution of landslide disasters and areas of potential distribution of landslide disasters is a qualitative descriptive spatial method. Several factors that cause landslides are geology, rock properties, stratigraphy, geological structure, level of weathering and seismicity, climate, rainfall, thick soil, solum. , slope topography, vegetation density and human land use. The results of the analysis show that in Jayaura Regency, Sentani District, there are 3 classes of landslide hazard levels, namely not vulnerable, somewhat vulnerable, quite vulnerable, and vulnerable. In general, Jayapura Regency, Sentani sub-district, is quite prone to the spread of landslides, but there are three sub-districts that are vulnerable, namely Hinekombe sub-district, Sentani village, Bart, Sentani sub-district, Sereh village in the middle and Sentani sub-district, Tollan village,
Pengaruh Efikasi Diri dan Disiplin Belajar terhadap Hasil Belajar Mata Pelajaran Agama Buddha di SD Swasta Maitreyawira Se-Sumatra Tommy Tommy
Dhammavicaya : Jurnal Pengkajian Dhamma Vol. 7 No. 2 (2024): Januari : Jurnal Pengkajian Dhamma
Publisher : Institut Nalanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47861/dhammavicaya.v7i2.1649

Abstract

This research aims to investigate the influence of learning outcomes with the variable Self-efficacy andThe discipline of learning both individually and together. The research was carried out on 137 class VI elementary school students from which a sample of 102 students was taken on Class VI learning outcomes on academic scores for Buddhist subjects at Maitreyawira Private Elementary Schools in Sumatra. The research uses quantitative research methods. Data analysis uses simple partial correlation and regression, multiple correlation. The conclusion from the results of this research is that there is a positive and very significant influence between the Self-Efficacy variable on Student Learning Outcomes with a significant level of self-efficacy obtained 0.000 < 0.05 and tcount 14,026 > ttable 1,663 the conclusion is that there is an influential, tcount = 14.026 and tcount (0,025;99) = 1.98 score ttable (0,01;99) = 2.36. This means tcount > ttable. There is a positive and very significant influence between the Learning Discipline variable on student learning outcomes with the Learning Discipline significance level obtained 0.000 < 0.05 and tcount 23,775 > ttable 1,663 the conclusion is that there is an influential, tcount = 6.661, and ttable (0,025;99) = 1.98 score ttable (0,01;99) = 2.36. This means tcount > ttable. There is a positive and very significant influence between the self-efficacy and Learning Discipline variables together with the Student Learning Outcomes variable by obtaining a tested hypothesis equation score with the condition Fcount > Ftable. From the calculation results, and score is obtained Fcount = 11,675 and score on Ftable (0,05;100) = 3.09 score Ftable (0,01;100) = 4,82.
Co-Authors Ibrahim Hasan Intan Maharidha Jane Utami Monita Y. Beatrick Wambrauw Nanda Ciptara Siahaan Nelson Boas Nainggolan Predy Taplo Syahputri, Nenna Irsa Yeni Ariesa