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Predicting the Direction of US Stock Prices Using Effective Transfer Entropy and Machine Learning Techniques
Predicting the Direction of US Stock Prices Using Effective Transfer Entropy and Machine Learning Techniques
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Predicting the Direction of US Stock Prices Using Effective Transfer Entropy and Machine Learning Techniques

Kim, Sondo ; Ku, Seungmo ; Chang, Woojin ; Song, Jae Wook

IEEE access, 2020, Vol.8, p.111660-111682 [Periódico revisado por pares]

Piscataway: IEEE

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Generating Chest X-Ray Progression of Pneumonia Using Conditional Cycle Generative Adversarial Networks
Generating Chest X-Ray Progression of Pneumonia Using Conditional Cycle Generative Adversarial Networks
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Generating Chest X-Ray Progression of Pneumonia Using Conditional Cycle Generative Adversarial Networks

Jin, Yeongbong ; Chang, Woojin ; Ko, Bonggyun

IEEE access, 2023, Vol.11, p.88152-88160 [Periódico revisado por pares]

Piscataway: IEEE

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Application of Instance-Based Entropy Fuzzy Support Vector Machine in Peer-To-Peer Lending Investment Decision
Application of Instance-Based Entropy Fuzzy Support Vector Machine in Peer-To-Peer Lending Investment Decision
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Application of Instance-Based Entropy Fuzzy Support Vector Machine in Peer-To-Peer Lending Investment Decision

Cho, Poongjin ; Chang, Woojin ; Song, Jae Wook

IEEE access, 2019, Vol.7, p.16925-16939 [Periódico revisado por pares]

Piscataway: IEEE

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4
Estimation and Forecasting of Sovereign Credit Rating Migration Based on Regime Switching Markov Chain
Estimation and Forecasting of Sovereign Credit Rating Migration Based on Regime Switching Markov Chain
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Estimation and Forecasting of Sovereign Credit Rating Migration Based on Regime Switching Markov Chain

Oh, Sung Youl ; Song, Jae Wook ; Chang, Woojin ; Lee, Minhyuk

IEEE access, 2019, Vol.7, p.115317-115330 [Periódico revisado por pares]

Piscataway: IEEE

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5
E-band low-noise amplifier MMIC with impedance-controllable filter using SiGe 130-nm BiCMOS technology
E-band low-noise amplifier MMIC with impedance-controllable filter using SiGe 130-nm BiCMOS technology
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E-band low-noise amplifier MMIC with impedance-controllable filter using SiGe 130-nm BiCMOS technology

Chang, Woojin ; Lee, Jong‐Min ; Kim, Seong‐Il ; Lee, Sang‐Heung ; Kang, Dong Min

ETRI Journal, 2020, 42(5), , pp.784-792 [Periódico revisado por pares]

한국전자통신연구원

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An empirical study of the structure of relevant keywords in a search engine using the minimum spanning tree
An empirical study of the structure of relevant keywords in a search engine using the minimum spanning tree
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An empirical study of the structure of relevant keywords in a search engine using the minimum spanning tree

Kim, Cookhwan ; Park, Sungsik ; Kwon, Kwiseok ; Chang, Woojin

Expert systems with applications, 2012-03, Vol.39 (4), p.4432-4443 [Periódico revisado por pares]

Elsevier Ltd

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7
Self-attention based deep direct recurrent reinforcement learning with hybrid loss for trading signal generation
Self-attention based deep direct recurrent reinforcement learning with hybrid loss for trading signal generation
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Self-attention based deep direct recurrent reinforcement learning with hybrid loss for trading signal generation

Kwak, Dongkyu ; Choi, Sungyoon ; Chang, Woojin

Information sciences, 2023-04, Vol.623, p.592-606 [Periódico revisado por pares]

Elsevier Inc

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8
Low onset voltage of GaN on Si Schottky barrier diode using various recess depths
Low onset voltage of GaN on Si Schottky barrier diode using various recess depths
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Low onset voltage of GaN on Si Schottky barrier diode using various recess depths

Park, Youngrak ; Kim, Jung-Jin ; Chang, Woojin ; Jang, Hyun-Gyu ; Na, Jeho ; Lee, Hyunsoo ; Jun, Chi-Hoon ; Cha, Ho-young ; Mun, Jae Kyoung ; Ko, Sang Choon ; Nam, Eun Soo

Electronics letters, 2014-07, Vol.50 (16), p.1164-1165 [Periódico revisado por pares]

Stevenage: The Institution of Engineering and Technology

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9
RETRACTED: An empirical test to measure the effectiveness of online advertising in online marketplaces using a hierarchical Bayes model
RETRACTED: An empirical test to measure the effectiveness of online advertising in online marketplaces using a hierarchical Bayes model
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RETRACTED: An empirical test to measure the effectiveness of online advertising in online marketplaces using a hierarchical Bayes model

Kim, Cookhwan ; Park, Sungsik ; Kwon, Kwiseok ; Chang, Woojin

Expert systems with applications, 2012-01, Vol.39 (1), p.117-128 [Periódico revisado por pares]

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10
Normally-off GaN MIS-HEMT using a combination of recessed-gate structure and CF4 plasma treatment
Normally-off GaN MIS-HEMT using a combination of recessed-gate structure and CF4 plasma treatment
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Normally-off GaN MIS-HEMT using a combination of recessed-gate structure and CF4 plasma treatment

Park, Youngrak ; Kim, Jungjin ; Chang, Woojin ; Jung, Dongyun ; Bae, Sungbum ; Mun, Jaekyung ; Jun, Chi-Hoon ; Ko, Sangchoon ; Nam, Eunsoo

Physica status solidi. A, Applications and materials science, 2015-05, Vol.212 (5), p.1170-1173 [Periódico revisado por pares]

Weinheim: Blackwell Publishing Ltd

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