Master Theses
Master Theses
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Now showing items 161-180 of 624
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Analisis Watermarking Citra Warna dengan Micro Genetic Algorithm dan Discrete Wavelet Transform
(Universitas Sumatera Utara, 2016)There are four issue that become the problem in watermarking, they are imperceptibility, robustness, capacity, and security. There is trade-off among them, especially to tle achievement of visual quality of image ... -
Kombinasi Vigenere Cipher dengan Caesar Cipher dalam Three Pass Protocol
(Universitas Sumatera Utara, 2012)In this study the authors combine the algorithrn Vigenere with Caesar Cipher in the concept of three-pass protocol for message security more secure confidentiality for her. Method of three-pass protocol is a method in ... -
Analisis Fungsi Implikasi MAX-MIN dan MAX-PROD dalam Pengambilan Keputusan
(Universitas Sumatera Utara, 2012)Decision-making should be performed based on the certain considerations in order to obtain objective decisions since the decision made without proper consideration can lead to less objective. Fuzzy logic is one of the ... -
Optimisasi Metode K-NN (K-Nearest Neighbour) Menggunakan Fuzzy Logic pada Klasifikasi Data
(Universitas Sumatera Utara, 2021)Classifications data can be undertaken by using a method of K-Nearest Neighbour through proximity the distance data training with the data that are being tested. A problem was often the case in the process of data processing ... -
Optimalisasi Hasil Clustering K-Medoids dengan Menggunakan Gap Statistic
(Universitas Sumatera Utara, 2021)K-Medoids is a machine learning algorithm that partitions data and then assigns them to groups. In the K-Medoids grouping, each cluster is represented by one data point called the medoid. Medoid is an object where it has ... -
Seleksi Atribut Pada K-Nearest Neighbor (K-Nn) dengan Symmetrical Uncertainty dalam Klasifikasi Data
(Universitas Sumatera Utara, 2022)K-Nearest iNeighbor (K-NN) is a classification method that is generally used in the data classification process. However, based on several studies that have been conducted, K-Nearest Neighbor obtains less than optimal ... -
Optimasi Kinerja K-Means Clustering Menggunakan Pembobotan Symmetrical Uncertainty dalam Klasterisasi Data
(Universitas Sumatera Utara, 2022)In some previous research, iK-Means iClustering ihas iseveral iweaknesses, ione of which ilies iin ithe idistance imodel iused in idetermining ithe isimilarity ibetween idata that igives ithe isame itreatment ito ieach ... -
Optimasi Hasil Pendeteksian Denyut Jantung Dengan Pulse Sensor Menggunakan Algoritma Filter Kalman
(Universitas Sumatera Utara, 2022)The heart is a vital organ in the human body. Heart rate can be an indicator of activity and health in the human body. Heart rate detection without using an algorithm will get a fairly high error value. The use of the ... -
Analisis Sentimen Menggunakan Algoritma Naïve Bayes dengan Seleksi Fitur Particle Swarm Optimization (Pso) dan Genetic Algorithm (GA)
(Universitas Sumatera Utara, 2022)Along with the development of technological advances, at this time people can criticize or express opinions through social media. One of the popular social media is twitter. Twitter can be a source of information and ... -
Modifikasi Key Generator RSA Menggunakan Algoritma Luc dalam Pengamanan File Teks
(Universitas Sumatera Utara, 2022)One of the cryptographic algorithms that can be used is RSA, which is a cryptographic algorithm known in the history of modern cryptography. RSA is used because of its reliability and is often used in asymmetric cryptography. ... -
Kompresi Elias Delta Code Pada Kombinasi Algoritma Kriptografi Hill Cipher dan Teknik Transposisi Segitiga dalam Pengamanan Citra
(Universitas Sumatera Utara, 2021)One way to secure messages is with cryptography which can make messages secret by turning information into difficult for unauthorized people to understand. Previous research has stated that combining two cryptographic ... -
Analisis Kinerja Ekstrasi Fitur Tf-Idf (Term Frequency – Inverse Document Frequency) Untuk Algoritma Klasifikasi Stochastic Gradient Descent Pada Analisis Sentimen Teks Indonesia
(Universitas Sumatera Utara, 2021)Twitter is an information platform that can be used by any internet user. Indonesia has 19.5 million Twitter users out of a total of 500 million users worldwide and continues to grow over time. The use of Twitter as a means ... -
Analisis Perbandingan Kinerja Algoritma Vigenere Cipher dan Algoritma Railfence Cipher dalam Keamanan File Video
(Universitas Sumatera Utara, 2021)Technological developments force us to do something especially in terms of security, files that are very vulnerable to be known, retrieved or even manipulated by others who are not entitled. Security on video files is the ... -
Seleksi Atribut dengan Gain Ratio untuk Peningkatan Kinerja Affinity Propagation
(Universitas Sumatera Utara, 2021)In several previous studies, the performance of Affinity Propagation obtained less than optimal performance due to the influence of the data attributes used, causing an unsuitable performance. In this study, the authors ... -
Optimasi Enkripsi File dengan Menggunakan Skema Hybrid Cryptosistem sebagai Keamanan File
(Universitas Sumatera Utara, 2021)Cryptography is a science that studies mathematical techniques related to information security aspects such as validity, data integrity, and data authentication. Cryptographic methods currently consist of two types, namely ... -
Analisis Metode Naïve Bayes Classifier Terhadap Metode ARIMA dalam Pengklasifikasian Kondisi Cuaca
(Universitas Sumatera Utara, 2019)Naive Bayes Classifier is a method that aims to predict future conditions. This method is a sub-part of classification algorithms. In this study, tests were tested out to predict weather conditions at a certain time. The ... -
Analisa Kombinasi Algoritma Djikstra dan Depth First Search untuk Shortest Path dan Availability Path Planning
(Universitas Sumatera Utara, 2022)Path Planning in Graph Technology still a hot discussion topic. The designed Algorithm expected can find path Availability path and shortest path in a Graph. Dijkstra Algorithm has been applied to find shortest path, and ... -
Hybrid Algoritma Adaboost dengan Metode Color Space Transformation and Lighting Compensation untuk Mendeteksi Wajah Berdasarkan Emosi
(Universitas Sumatera Utara, 2021)In this study, facial recognition was performed using the Adaboost hybrid algorithm with the method of color space transformation and lighting compensation (CST-LC) to detect faces based on emotions. This study aims to ... -
Analisis Association Rules Menggunakan Algoritma Apriori dan Normalisasi Fuzzy
(Universitas Sumatera Utara, 2021)The a priori algorithm is an algorithm to find a combination of items in a dataset that has a relationship value between items by paying attention to the minimum support and minimum confidence values. A common problem ... -
Analisis Metode Fuzzy C-Means dan Pearson Correlation untuk Reduksi Data pada Algoritma KNN
(Universitas Sumatera Utara, 2021)The kNN algorithm is a method in data mining that is used for the data classification process which is quite popular. The traditional kNN method has several disadvantages, such as: slow computation when the dimensions ...
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