ANALISIS SENTIMEN PADA BULETIN MENGGUNAKAN ALGORITME DBSCAN

Asosiasi Perguruan Tinggi Informatika dan Ilmu Komputer (APTIKOM) mengembangkan media yang memuat informasi dan teknologi bentuk media online yaitu Buletin. Informasi yang disampaikan pada Buletin membahas mengenai big data, kemajuan teknologi dan lain – lain. Kalimat yang terkandung dalam Buletin dapat berupa kalimat positif, negatif maupun netral. Penggunaan kata dalam menyusun kalimat dapat memengaruhi informasi yang disampaikan. Oleh karena itu, penyusunan kalimat perlu diperhatikan agar dapat meminimalkan kesalahan maksud dan tujuan. Penyusunan kalimat dapat diawali dengan pemilihan kata, pengelompokkan kata, dan melakukan klasifikasi sentimen. Proses pemeriksaan dokumen dapat dilakukan dengan algoritme DBSCAN. Algoritme DBSCAN dapat melakukan clustering dalam menentukan noise yang terdapat di dalam dokumen. Penelitian magazine bertujuan melakukan pemeriksaan kata negatif, positif dan netral. Selain itu, bertujuan untuk melakukan pencarian intisari yang terdapat dalam dokumen. Tahapan diawali dengan proses TF IDF untuk klasifikasi dan DBSCAN untuk clustering. Selanjutnya, hasil yang diperoleh akan dievaluasi dengan Sum of Square Error (SSE) dan pemeriksaan ketepatan cluster meggunakan Silhouette. Hasil evaluasi algoritma menunjukkan perbandingan nilai masing – masing cluster. Lalu, hasil evaluasi akan diperiksa dengan silhouette yang menunjukkan ketepatan cluster

What attracts vehicle consumers’ buying:A Saaty scale-based VIKOR (SSC-VIKOR) approach from after-sales textual perspective?

Purpose: The increasingly booming e-commerce development has stimulated vehicle consumers to express individual reviews through online forum. The purpose of this paper is to probe into the vehicle consumer consumption behavior and make recommendations for potential consumers from textual comments viewpoint. Design/methodology/approach: A big data analytic-based approach is designed to discover vehicle consumer consumption behavior from online perspective. To reduce subjectivity of expert-based approaches, a parallel Naïve Bayes approach is designed to analyze the sentiment analysis, and the Saaty scale-based (SSC) scoring rule is employed to obtain specific sentimental value of attribute class, contributing to the multi-grade sentiment classification. To achieve the intelligent recommendation for potential vehicle customers, a novel SSC-VIKOR approach is developed to prioritize vehicle brand candidates from a big data analytical viewpoint. Findings: The big data analytics argue that “cost-effectiveness” characteristic is the most important factor that vehicle consumers care, and the data mining results enable automakers to better understand consumer consumption behavior. Research limitations/implications: The case study illustrates the effectiveness of the integrated method, contributing to much more precise operations management on marketing strategy, quality improvement and intelligent recommendation. Originality/value: Researches of consumer consumption behavior are usually based on survey-based methods, and mostly previous studies about comments analysis focus on binary analysis. The hybrid SSC-VIKOR approach is developed to fill the gap from the big data perspective

Feature-Based Opinion Classification Using the KPCA Technique: Concept and Performance Evaluation

Over the last several years, a widespread trend on the internet has been the proliferation of online evaluations written by people with whom they share their ideas, interests, experiences, and opinions. Opinion mining, also known as sentiment analysis, is the process of classifying pieces of text written in a natural language on a subject into positive, negative, or neutral categories according to the human emotions, views, and feelings that are communicated in that text. The field of sentiment analysis has progressed to the point that it can now analyse internet evaluations and provide significant information to people as well as corporations, which may assist these parties in the decision-making process. In the proposed model, feature extraction extracts the collection of features that are both semantically and statistically significant using the kernel principal component analysis (KPCA) method. According to the findings of the simulations, the suggested model performs better than other existing models

Big Data and Strengthening MSMEs After the Covid-19 Pandemic (Development Studies on Batik MSMEs in East Java)

This research aims to analyze the effect of online business on economic growth in Java Island, segment and optimize aspects that support the development of internet business in the locus of Java Island, especially East Java Province, and complement it with a The existence of social.The method used is a combination of 5 techniques, namely regression analysis, thematic map visualization, clustering, spatial analysis, and text mining. This research has major implications for the development of MSMEs because MSMEs have succeeded in implementing e-commers in their sales and this greatly affects economic growth. Through the support of other analyses, it will also be known that the factors that support economic growth are more complete. The results show that online business affects the economic growth of provinces in Java. Online business businesses need to continue to be optimized by improving the quality of HDI and web networks, especially in the development priority areas of East Java Province. Programs related to the advanced economy need to be encouraged to align changes in the order of society with MSME activities in adapting to the e-digitalization period. This research has major implications for the development of MSMEs because MSMEs have succeeded in implementing e-commers in their sales and this greatly affects economic growth. Through the support of other analyses, it will also be known that the factors that support economic growth are more complete. This condition is more specific to developing countries and Covid-19 Pandemi

Buzz Tweet Classification Based on Text and Image Features of Tweets Using Multi-Task Learning

This study investigates social media trends and proposes a buzz tweet classification method to explore the factors causing the buzz phenomenon on Twitter. It is difficult to identify the causes of the buzz phenomenon based solely on texts posted on Twitter. It is expected that by limiting the tweets to those with attached images and using the characteristics of the images and the relationships between the text and images, a more detailed analysis than that of with text-only tweets can be conducted. Therefore, an analysis method was devised based on a multi-task neural network that uses both the features extracted from the image and text as input and the buzz class (buzz/non-buzz) and the number of “likes (favorites)” and “retweets (RTs)” as output. The predictions made using a single feature of the text and image were compared with the predictions using a combination of multiple features. The differences between buzz and non-buzz features were analyzed based on the cosine similarity between the text and the image. The buzz class was correctly identified with a correctness rate of approximately 80% for all combinations of image and text features, with the combination of BERT and VGG16 providing the highest correctness rate

IMPLEMENTATION OF A MACHINE LEARNING ALGORITHM FOR SENTIMENT ANALYSIS OF INDONESIA'S 2019 PRESIDENTIAL ELECTION

In 2019,citizens of Indonesiaparticipated in the democratic process of electing a new president, vice president, and various legislative candidates for the country. The 2019 Indonesian presidential election was very tense in terms of the candidates' campaigns in cyberspace, especially on social media sites such as Facebook,Twitter,Instagram,Google+, Tumblr,LinkedIn, etc. The Indonesian people used social media platforms to express their positive,neutral, and alsonegativeopinions on the respective presidential candidates.The campaigning of respective social media users on their choice of candidates forregents,governors, and legislative positions up to presidential candidates was conducted via the Internet and online media. Therefore, the aim of this paper is to conduct sentiment analysis on the candidates in the 2019Indonesia presidential election based on Twitter datasets. The study used datasets on the opinions expressed by the Indonesian people available on Twitter with the hashtags (#) containing "Jokowi and Prabowo." We conducted data pre-processing using a selection of comments, data cleansing, text parsing, sentence normalization and tokenization based on the given text in the Indonesian language, determination of class attributes, and, finally, we classified the Twitter posts with the hashtags (#) using Naïve Bayes Classifier (NBC) and a Support Vector Machine (SVM) to achieve an optimalandmaximumoptimizationaccuracy. The study provides benefits in terms of helping the community to research opinions on Twitter that contain positive, neutral, or negative sentiments. Sentiment Analysis on the candidates in the 2019 Indonesianpresidential election onTwitterusingnon-conventionalprocesses resulted in cost, time, and effort savings. This research proved that the combination of the SVM machine learning algorithm and alphabetic tokenization produced the highest accuracy value of 79.02%. While the lowest accuracy value in this study was obtained with a combination of the NBC machine learning algorithm and N-gram tokenization with an accuracy value of 44.94%

A prediction of South African public Twitter opinion using a hybrid sentiment analysis approach

DATA AVAILABILITY : The full VADER Dataset is available online at: https://github.com/cjhutto/vaderSentiment/blob/master/vaderSentiment/vader_lexicon.txt. The SA Twitter dataset is available online at: https://www.kaggle.com/mbusomakitla/south-african-twitter-dataset.Sentiment analysis, a subfield of Natural Language Processing, has garnered a great deal of attention within the research community. To date, numerous sentiment analysis approaches have been adopted and developed by researchers to suit a variety of application scenarios. This consistent adaptation has allowed for the optimal extraction of the authors emotional intent within text. A contributing factor to the growth in application scenarios is the mass adoption of social media platforms and the bondless topics of discussion they hold. For government, organizations and other miscellaneous parties, these opinions hold vital insight into public mindset, welfare, and intent. Successful utilization of these insights could lead to better methods of addressing said public, and in turn, could improve the overall state of public well-being. In this study, a framework using a hybrid sentiment analysis approach was developed. Various amalgamations were created – consisting of a simplified version of the Valence Aware Dictionary and sEntiment Reasoner (VADER) lexicon and multiple instances of classical machine learning algorithms. In this study, a total of 67,585 public opinion-oriented Tweets created in 2020 applicable to the South African (ZA) domain were analyzed. The developed hybrid sentiment analysis approaches were compared against one another using well known performance metrics. The results concluded that the hybrid approach of the simplified VADER lexicon and the Medium Gaussian Support Vector Machine (MGSVM) algorithm outperformed the other seven hybrid algorithms. The Twitter dataset utilized serves to demonstrate model capability, specifically within the ZA context.The Durban University of Technology.https://thesai.org/Publications/IJACSAam2024InformaticsSDG-09: Industry, innovation and infrastructur

Understanding COVID-19 halal vaccination discourse on facebook and twitter using aspect-based sentiment analysis and text emotion analysis

The COVID-19 pandemic introduced unprecedented challenges for people and governments. Vaccines are an available solution to this pandemic. Recipients of the vaccines are of different ages, gender, and religion. Muslims follow specific Islamic guidelines that prohibit them from taking a vaccine with certain ingredients. This study aims at analyzing Facebook and Twitter data to understand the discourse related to halal vaccines using aspect-based sentiment analysis and text emotion analysis. We searched for the term “halal vaccine” and limited the timeline to the period between 1 January 2020, and 30 April 2021, and collected 6037 tweets and 3918 Facebook posts. We performed data preprocessing on tweets and Facebook posts and built the Latent Dirichlet Allocation (LDA) model to identify topics. Calculating the sentiment analysis for each topic was the next step. Finally, this study further investigates emotions in the data using the National Research Council of Canada Emotion Lexicon. Our analysis identified four topics in each of the Twitter dataset and Facebook dataset. Two topics of “COVID-19 vaccine” and “halal vaccine” are shared between the two datasets. The other two topics in tweets are “halal certificate” and “must halal”, while “sinovac vaccine” and “ulema council” are two other topics in the Facebook dataset. The sentiment analysis shows that the sentiment toward halal vaccine is mostly neutral in Twitter data, whereas it is positive in Facebook data. The emotion analysis indicates that trust is the most present emotion among the top three emotions in both datasets, followed by anticipation and fear

Aspect-Based Sentiment Analysis using Machine Learning and Deep Learning Approaches

Sentiment analysis (SA) is also known as opinion mining, it is the process of gathering and analyzing people's opinions about a particular service, good, or company on websites like Twitter, Facebook, Instagram, LinkedIn, and blogs, among other places. This article covers a thorough analysis of SA and its levels. This manuscript's main focus is on aspect-based SA, which helps manufacturing organizations make better decisions by examining consumers' viewpoints and opinions of their products. The many approaches and methods used in aspect-based sentiment analysis are covered in this review study (ABSA). The features associated with the aspects were manually drawn out in traditional methods, which made it a time-consuming and error-prone operation. Nevertheless, these restrictions may be overcome as artificial intelligence develops. Therefore, to increase the effectiveness of ABSA, researchers are increasingly using AI-based machine learning (ML) and deep learning (DL) techniques. Additionally, certain recently released ABSA approaches based on ML and DL are examined, contrasted, and based on this research, gaps in both methodologies are discovered. At the conclusion of this study, the difficulties that current ABSA models encounter are also emphasized, along with suggestions that can be made to improve the efficacy and precision of ABSA systems