Bot spammer merupakan penyalahgunaan user dalam menggunakan Twitter untuk menyebarkan pesan spam sesuai dengan keinginan user. Tujuan spam mencapai trending topik yang ingin dibuatnya. Penelitian ini mengusulkan deteksi bot spammer pada Twitter berbasis Time Interval Entropy dan global vectors for word representations (Glove). Time Interval Entropy digunakan untuk mengklasifikasi akun bot berdasarkan deret waktu pembuatan tweet. Glove digunakan untuk melihat co-occurrence kata tweet yang disertai Hashtag untuk proses klasifikasi menggunakan Convolutional Neural Network (CNN). Penelitian ini menggunakan data API Twitter dari 18 akun bot dan 14 akun legitimasi dengan 1.000 tweet per akunnya. Hasil terbaik recall, precision, dan f-measure yang didapatkan yaitu 100%; 100%, dan 100%. Hal ini membuktikan bahwa Glove dan Time Interval Entropy sukses mendeteksi bot spammer dengan sangat baik. Hashtag memiliki pengaruh untuk meningkatkan deteksi bot spammer. Spam spammers are users' misuse of using Twitter to spread spam messages in accordance with user wishes. The purpose of spam is to reach the required trending topic. This study proposes detection of bot spammers on Twitter based on Time Interval Entropy and global vectors for word representations (Glove). Time Interval Entropy is used to classify bot accounts based on the tweet's time series, while glove views the co-occurrence of tweet words with Hashtags for classification processes using the Convolutional Neural Network (CNN). This study uses Twitter API data from 18 bot accounts and 14 legitimacy accounts with 1000 tweets per account. The best results of recall, precision, and f-measure were 100%respectively. This proves that Glove and Time Interval Entropy successfully detects spams, with Hash tags able to increase the detection of bot spammers.
The face as one part of the human body has been widely used as a biometric-based security system. This research is a process of designing and making of the identification system which is able to detect of human attended. This system implements viola-jones, eigenface, and Euclidean distance methods. Viola-jones method is employed as face detection. Eigenface method is employed to reduce the face image via a projection. The Euclidean distance is implemented as a classification method. The accuracy of this system against 30 register subjects and 15 unregistered subjects is 84%. This accuracy is obtained after the addition of face normalization and adaptive training model on the system. Therefore, this research concluded that viola-jones method is very good as face detection, however, need to be added face correction process. Meanwhile, eigenface and Euclidean distance methods provide good results to recognize the face when many training faces are given.
Document classification nowadays is an easy thing to do because there are the latest methods to get maximum results. Document classification using the term weighting TF-IDF-ICF method has been widely studied. Documents used in this research generally use large documents. If the term weighting TF-IDF method is used in a short text document such as the Thesis Title, the document will not get a perfect score from the classification results. Because in the IDF will calculate the weight of words that always appear to be few, ICF will calculate the weight of words that often appear in the class to be few. While the word should have great weight to be the core of a short text document. Therefore, this study aims to conduct research on word weighting based on class indexation and short document indexation, namely TF-IDF-ICF-IDSF. This study uses a classification comparison Naïve Bayes and SVM. The dataset used is Thesis Title of Informatics Education student at Trunojoyo Madura University. The test results show that the classification results using the TF-IDF-ICF-IDSF term weighting method outperform other term weighting, namely getting 91% Precision, 93% Recall, 86% F1-Score, and 84% Accuracy on SVM.
Aksara Sasak adalah warisan budaya Lombok yang sangat penting untuk dilestarikan agar tidak punah diterpa perkembangan zaman. Paper ini mengusulkan perancangan model klasifikasi tulisan tangan untuk karakter aksara Sasak menggunakan metode Histogram of Oriented Gradient (HOG) dan Multinomial Logistic Regression (MLR). Metode HOG digunakan untuk melakukan ekstraksi fitur pada citra tulisan tangan aksara Sasak. Metode HOG dapat mendeskripsikan bentuk dari karakter berdasarkan nilai orientasi gradiennya. Kemudian, MLR merupakan metode yang digunakan untuk mengklasifikasikan hasil ekstraksi ciri. Dataset yang digunakan yaitu 1260 citra yang terdiri dari 70 citra tulisan tangan aksara sasak dari 18 karakter. Berdasarkan hasil pengujian yang dilakukan maka didapatkan nilai evaluasi akurasi, presisi, dan recal masing-masing sebesar 88%, 88%, dan 87%. Kemudian menggunakan proses bounding box dapat meningkatkan hasil evaluasi secara signifikan. Nilai evaluasi dapat ditingkatkan dengan menambah data set yang digunakan untuk pelatihan model.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.