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      • KCI등재

        Predicting Employment Earning using Deep Convolutional Neural Networks

        마렌드라,김나랑,최형림,Ramadhani, Adyan Marendra,Kim, Na-Rang,Choi, Hyung-Rim The Society of Digital Policy and Management 2018 디지털융복합연구 Vol.16 No.6

        소득은 경제생활에서 중요하다. 소득을 예측할 수 있으면, 사람들은 음식, 집세와 같은 생활비를 지불 할 수 있는 예산을 세울 수 있을 뿐 아니라, 다른 재화 또는 비상사태를 위한 돈을 별도로 저축 할 수 있다. 또한 소득수준은 은행, 상점 및 서비스 회사에서 마케팅 목적 및 충성도가 높은 고객을 유치하는 데 활용 된다. 이는 소득이 다양한 고객 접점에서 사용되는 중요한 인구 통계 요소이기 때문이다. 따라서 기존 고객 및 잠재 고객에 대한 수입 예측이 필요하다. 이 연구에서는 소득을 예측하기 위해 SVM (Support Vector Machines), Gaussian, 의사 결정 트리, DCNN (Deep Convolutional Neural Networks)과 같은 기계 학습 기법을 사용하였다. 분석 결과 DCNN 방법이 본 연구에서 사용 된 다른 기계 학습 기법에 비해 최적의 결과(88%)를 제공하는 것으로 나타났다. 향후 PCA 같이 데이터 크기를 향상 시킨다면 더 좋은 연구 결과를 제시할 수 있을 것이다. Income is a vital aspect of economic life. Knowing what their income will help people create budgets that allow them to pay for their living expenses. Income data is used by banks, stores, and service companies for marketing purposes and for retaining loyal customers; it is a crucial demographic element used at a wide variety of customer touch points. Therefore, it is essential to be able to make income predictions for existing and potential customers. This paper aims to predict employment earnings or income based on history, and uses machine learning techniques such as SVMs (Support Vector Machines), Gaussian, decision tree and DCNNs (Deep Convolutional Neural Networks) for predicting employment earnings. The results show that the DCNN method provides optimum results with 88% compared to other machine learning techniques used in this paper. Improvement of the data length such PCA has the potential to provide more optimum result.

      • KCI등재

        Korean and English Sentiment Analysis Using the Deep Learning

        마렌드라,최형림,임성배,Ramadhani, Adyan Marendra,Choi, Hyung Rim,Lim, Seong Bae Korea Society of Industrial Information Systems 2018 한국산업정보학회논문지 Vol.23 No.3

        Social media has immense popularity among all services today. Data from social network services (SNSs) can be used for various objectives, such as text prediction or sentiment analysis. There is a great deal of Korean and English data on social media that can be used for sentiment analysis, but handling such huge amounts of unstructured data presents a difficult task. Machine learning is needed to handle such huge amounts of data. This research focuses on predicting Korean and English sentiment using deep forward neural network with a deep learning architecture and compares it with other methods, such as LDA MLP and GENSIM, using logistic regression. The research findings indicate an approximately 75% accuracy rate when predicting sentiments using DNN, with a latent Dirichelet allocation (LDA) prediction accuracy rate of approximately 81%, with the corpus being approximately 64% accurate between English and Korean.

      • KCI등재

        Korean and English Sentiment Analysis Using the Deep Learning

        Adyan Marendra Ramadhani(마렌드라),Hyung Rim Choi(최형림),Seong Bae Lim(임성배) 한국산업정보학회 2018 한국산업정보학회논문지 Vol.23 No.3

        Social media has immense popularity among all services today. Data from social network services (SNSs) can be used for various objectives, such as text prediction or sentiment analysis. There is a great deal of Korean and English data on social media that can be used for sentiment analysis, but handling such huge amounts of unstructured data presents a difficult task. Machine learning is needed to handle such huge amounts of data. This research focuses on predicting Korean and English sentiment using deep forward neural network with a deep learning architecture and compares it with other methods, such as LDA MLP and GENSIM, using logistic regression. The research findings indicate an approximately 75% accuracy rate when predicting sentiments using DNN, with a latent Dirichelet allocation (LDA) prediction accuracy rate of approximately 81%, with the corpus being approximately 64% accurate between English and Korean.

      • KCI등재

        Bitcoin Price Forecasting Using Neural Decomposition and Deep Learning

        Adyan Marendra Ramadhani(마렌드라),Kim Na Rang(김나랑),Lee Tai Hun(이태헌),Ryu Seung Eui(유승의) 한국산업정보학회 2018 한국산업정보학회논문지 Vol.23 No.4

        Bitcoin is a cryptographic digital currency and has been given a significant amount of attention in literature since it was first introduced by Satoshi Nakamoto in 2009. It has become an outstanding digital currency with a current market capitalization of approximately $60 billion. By 2019, it is expected to have over 5 million users. Nowadays, investing in Bitcoin is popular, and along with the advantages and disadvantages of Bitcoin, learning how to forecast is important for investors in their decision-making so that they are able to anticipate problems and earn a profit. However, most investors are reluctant to invest in bitcoin because it often fluctuates and is unpredictable, which may cost a lot of money. In this paper, we focus on solving the Bitcoin forecasting prediction problem based on deep learning structures and neural decomposition. First, we propose a deep learning-based framework for the bitcoin forecasting problem with deep feed forward neural network. Forecasting is a time-dependent data type; thus, to extract the information from the data requires decomposition as the feature extraction technique. Based on the results of the experiment, the use of neural decomposition and deep neural networks allows for accurate predictions of around 89%.

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