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ORCIDWoojin Chang
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2020 – today
- 2025
[j21]Jungyoon Song, Woojin Chang, Jae Wook Song
:
NQF-RNN: probabilistic forecasting via neural quantile function-based recurrent neural networks. Appl. Intell. 55(2): 183 (2025)- 2024
- [c9]Junhyung Kim, Gyejung Lee, Kyujun Cho, Jong Yul Park, Byoung-Gue Min, Junhyung Jeong, Honggu Ji, Woojin Chang, Jong-Min Lee, Dong-Min Kang:
Enhancing Ohmic Contacts in GaN HEMT Through Optimization of Ramp-Up Rate in Annealing Process. ICTC 2024: 1104-1105 - [c8]Junhyung Jeong, Kyujun Cho, Junhyung Kim, Honggu Ji, Woojin Chang, Jongmin Lee, Byoung-Gue Min, Jongyul Park, Gyejung Lee, Dongmin Kang:
0.15 μm GaN HPA MMIC for 6G Upper-Mid Band. ICTC 2024: 1456-1457 - [c7]Jong Yul Park, Byoung-Gue Min, Jong-Min Lee, Woojin Chang, Honggu Ji, Junhyung Jeong, Junhyung Kim, Gyejung Lee, Kyujun Cho, Dong Min Kang:
GaAs mHEMT Technology Achieving a High Cut-Off Frequncy of 446 GHz with a Gate Length of 75 nm. ICTC 2024: 1468-1469 - 2023
- [j20]Yeongbong Jin, Woojin Chang, Bonggyun Ko:
Generating Chest X-Ray Progression of Pneumonia Using Conditional Cycle Generative Adversarial Networks. IEEE Access 11: 88152-88160 (2023) - [j19]Dongkyu Kwak, Sungyoon Choi, Woojin Chang:
Self-attention based deep direct recurrent reinforcement learning with hybrid loss for trading signal generation. Inf. Sci. 623: 592-606 (2023) - 2022
- [j18]Sungyoon Choi, Dongkyu Gwak, Jae Wook Song, Woojin Chang:
Stock market network based on bi-dimensional histogram and autoencoder. Intell. Data Anal. 26(3): 723-750 (2022) - 2020
- [j17]Sondo Kim, Seungmo Ku, Woojin Chang, Jae Wook Song:
Predicting the Direction of US Stock Prices Using Effective Transfer Entropy and Machine Learning Techniques. IEEE Access 8: 111660-111682 (2020) - [j16]Poongjin Cho, Minhyuk Lee, Woojin Chang:
Instance-based entropy fuzzy support vector machine for imbalanced data. Pattern Anal. Appl. 23(3): 1183-1202 (2020)
2010 – 2019
- 2019
- [j15]Poongjin Cho, Woojin Chang, Jae Wook Song:
Application of Instance-Based Entropy Fuzzy Support Vector Machine in Peer-To-Peer Lending Investment Decision. IEEE Access 7: 16925-16939 (2019) - [j14]Sung Youl Oh, Jae Wook Song, Woojin Chang, Minhyuk Lee:
Estimation and Forecasting of Sovereign Credit Rating Migration Based on Regime Switching Markov Chain. IEEE Access 7: 115317-115330 (2019) - [j13]Suk Joo Bae, Byeong Min Mun, Woojin Chang, Brani Vidakovic:
Condition monitoring of a steam turbine generator using wavelet spectrum based control chart. Reliab. Eng. Syst. Saf. 184: 13-20 (2019) - 2018
- [i1]Poongjin Cho, Minhyuk Lee, Woojin Chang:
Instance-based entropy fuzzy support vector machine for imbalanced data. CoRR abs/1807.03933 (2018) - 2017
- [j12]Il Yong Na, Woojin Chang:
Multi-system reliability trend analysis model using incomplete data with application to tank maintenance. Qual. Reliab. Eng. Int. 33(8): 2385-2395 (2017) - 2012
- [j11]Cookhwan Kim, Sungsik Park, Kwiseok Kwon, Woojin Chang:
How to select search keywords for online advertising depending on consumer involvement: An empirical investigation. Expert Syst. Appl. 39(1): 594-610 (2012) - [j10]Cookhwan Kim, Sungsik Park, Kwiseok Kwon, Woojin Chang:
An empirical study of the structure of relevant keywords in a search engine using the minimum spanning tree. Expert Syst. Appl. 39(4): 4432-4443 (2012) - [j9]Cookhwan Kim, Sungsik Park, Kwiseok Kwon, Woojin Chang:
An empirical test to forecast the sales rank of a keyword advertisement using a hierarchical Bayes model. Expert Syst. Appl. 39(17): 12727-12742 (2012) - [j8]J. H. Park, Woojin Chang, Chang-Hoon Lie:
Stress-reducing preventive maintenance model for a unit under stressful environment. Reliab. Eng. Syst. Saf. 108: 42-48 (2012) - 2011
- [j7]Cookhwan Kim, Woojin Chang:
Logistic regression in sealed-bid auctions with multiple rounds: Application in Korean court auction. Expert Syst. Appl. 38(4): 3098-3115 (2011) - [j6]Cookhwan Kim, Kwiseok Kwon, Woojin Chang:
How to measure the effectiveness of online advertising in online marketplaces. Expert Syst. Appl. 38(4): 4234-4243 (2011) - 2010
- [j5]Jaeyung Huh, Woojin Chang, Junghoon Lee, Jaeyong Lee:
Samsung card lending model. Eur. J. Oper. Res. 207(1): 492-498 (2010)
2000 – 2009
- 2009
- [j4]Sung-Hwan Jung, Jung-Wan Hong, Woojin Chang, Chang-Hoon Lie:
Quality of service estimation for soft handoff region ratio and call admission control in CDMA cellular systems. Comput. Ind. Eng. 56(4): 1429-1441 (2009) - [j3]Kyung Jae Lee, Woojin Chang:
Bayesian belief network for box-office performance: A case study on Korean movies. Expert Syst. Appl. 36(1): 280-291 (2009) - 2007
- [j2]Woojin Chang:
Waiting Time of M/d1,∞/1 Queue. Asia Pac. J. Oper. Res. 24(3): 383-399 (2007) - [c6]In Ki Kim, Kyung Jae Lee, Woojin Chang, Myung Hwan Yun:
Statistical Modeling of Affective Responses from Visual and Auditory Attributes in the Movies. HCI (11) 2007: 397-406 - [c5]In Ki Kim, Hyungsup Kim, Cheol Lee, Woojin Chang, Myung Hwan Yun:
Identification of visual and auditory design attributes for the affective interaction design in movies. IFAC HMS 2007: 398-402 - 2006
- [c4]Woojin Chang:
Reliable Keystroke Biometric System Based on a Small Number of Keystroke Samples. ETRICS 2006: 312-320 - [c3]Woojin Chang:
Keystroke Biometric System Using Wavelets. ICB 2006: 647-653 - 2003
- [c2]James P. Burnes, James M. Tien, Woojin Chang:
An intrinsic assessment and comparison of biometric systems through wavelet analysis. SMC 2003: 4514-4521 - 2002
- [j1]Woojin Chang, Douglas G. Down:
Exact Asymptotics for ki-limited Exponential Polling Models. Queueing Syst. Theory Appl. 42(4): 401-419 (2002) - 2000
- [c1]Woojin Chang, Douglas G. Down:
Asymptotics for polling models with limited service policies. CDC 2000: 1427-1432
Coauthor Index
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