© 2019 by Dr Zilu Liang.  

Publications

Journals

1. Liang Z, Chapa-Martell MA. (2019) Accuracy of Fitbit wristbands in measuring sleep stage transitions and the effect of user-specific factorsJMIR mHealth and uHealth 7(6):e13384, DOI:10.2196/13384.  PubMed   SCI   Scopus 

2. Liang Z, Chapa-Martell MA. (2019) Not all errors are created equal: influence of user characteristics on measuring errors of consumer wearable devices for sleep tracking. EAI Endorsed Transactions on Pervasive Health and Technology 18(15):e4.  Scopus 

3. Liang Z, Yoshida Y, Iino N, Nishimura T, Chapa-Martell MA, Nishimura S.(2019) A pervasive sensing approach to automatic assessment of trunk coordination using mobile devicesEAI Endorsed Transactions on Pervasive Health and Technology 18(15):e5.  Scopus 

4. Liang Z, Chapa-Martell MA. (In press) Measurement accuracy of consumer sleep tracking wristbands is associated to users’ age and sleep efficiency. The Journal of Physical Fitness and Sports Medicine 6.

5. Liang Z, Chapa-Martell MA. (2018) Validity of consumer activity wristbands and wearable EEG for measuring overall sleep parameters and sleep structure in free-living conditions. Journal of Healthcare Informatics Research 2 (1-2): 152-178. # Cited by UK Parliamentary Office of Sciences & Technology # Featured in Gizmodo

6. Yoshida Y, Liang Z, Nishimura S, Konosu H, Nagao T, Nishimura T. (2018) Quality evaluation for sports coaching service: evaluate trunk torsion by mobile terminal. Transaction of Information Processing Society of Japan 59(2): 591-601.

7. Liang Z, Ploderer B, Liu W, Nagata Y, Bailey J, Kulik L, Li Y. (2016). SleepExplorer: A visualization tool to make sense of correlations between personal sleep data and contextual factors. Personal and Ubiquitous Computing 20(6): 985-1000.  SCI   Scopus 

8. Liang Z, Wakahara Y. (2014). Real-time Urban Traffic Amount Prediction Models for Dynamic Route Guidance Systems. EURASIP Journal on Wireless Communications and Networking, 2014: 85.  SCI   Scopus 

9. Liang Z, Xiahou S, Chen D. (2010). Secured AODVjr Routing Protocol Based on SRP Algorithm. Journal of the University of Electronic Science and Technology of China 39(Suppl.): 121-126. ​

10. Zhao H, Jin J, Jiang P, Gao W, Liang Z. (2008). LabVIEW and PCI DAQ Card Based HTS Test and Control Platforms. Journal of Electronic Science and Technology of China, vol.6, no.2, 198-204.

Book Chapters

 

Conference/Workshop Proceedings (Referred and Indexed)

​2019

  • Liang Z. (To appear) Enhancing active learning in web development classes using pairwise pre-and-post lecture quizzes. In Proceedings of IEEE TALE 2019, Yogyakarta, Indonesia.  Scopus 

  • Liang Z. (To appear) Design of a web development attitudes survey. In Proceedings of IEEE TALE 2019, Yogyakarta, Indonesia.  Scopus 

  • White G, Liang Z, Clarke S. (2019) A quantified-self framework for exploring and enhancing personal productivity. In Proceedings of the 17th Intl Conf on Content-Based Multimedia Indexing (CBMI '19), Dublin, Ireland.

  • Liang Z, Chapa-Martell MA. (2019) Achieving accurate ubiquitous sleep sensing with consumer wearable activity wristbands using multi-class imbalanced classification. In Proceedings of IEEE Int Conf on Pervasive Intelligence and Computing (PICOM '19). Fukuoka, Japan. 

  • Liang Z, Chapa-Martell MA. (2019) Combining resampling and machine learning to improve sleep-wake detection of Fitbit wristbands. In Proceedings of IEEE Int Conf on Healthcare Informatics (ICHI '19). Xi'an, China.

  • Liang Z, Chapa-Martell MA. (2019) Combining numerical and visual approaches in validating sleep data quality of consumer wearable wristbands. In Proceedings of IEEE PerCom Workshops (IQ2S Workshop), Kyoto, Japan.  Scopus 

2018

2017

​​

2016

Up to 2015

Conference/Workshop Presentations

  • Liang Z, Chapa-Martell MA. (2019) Moving beyond statistical analysis: applying association rule mining to discovering correlations between daily behavioral rhythm and sleep quality. The 26th Annual Meeting of the Japanese Society for Chronobiology, Kanezawa, Japan.

  • Liang Z, Chapa-Martell MA. (2019) Measurement accuracy of consumer sleep tracking wristbands is associated to user-specific factors. The 74th Annual Meeting of the Japanese Society of Physical Fitness and Sports Medicine, Tsukuba, Japan.​

  • Liang Z, White G, Clarke S, Chapa-Martell MA. (2019) Mining association rules in quantified self data for better sleep and productivity. IEICE Society Conference 2019, Osaka, Japan. 

  • Liang Z, Chapa-Martell MA. (2019) Mitigating resource constraints in web development education using commercial cloud services. The 18th Forum on Information Technology, Okayama, Japan.

  • Egholm-Andersen, L., Liang, Z., Morimura, K. (2018). A web application for analyzing stress association factors among students. IEICE General Conference, Tokyo. ​

  • Liang Z, Nishimura S, Nishimura T, Chapa-Martell MA. (2017) Understanding Teachers' Time Management in English Conversation Classes using Experience Sampling Method and Data Visualization. International Workshop on Knowledge Explication for Industry, Tokyo, Japan. 

  • Liang, Z., Chapa-Martell, M.A. (2017) Wearable EEG v.s. wristband: which is more accurate for sleep tracking under free living conditions? The 39th Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC'17), Jeju, Korea. 

  • Liang, Z. (2017). Comparison of commercial wearable sleep trackers to subjective sleep quality. In Proceedings of the 42th Annual Meeting of Japanese Society of Sleep Research, Yokohama, Japan. 

  • Liang Z, Chapa-Martell MA. (2017). Paradox in validating consumer wearable activity trackers on measuring sleep quality. The 16th Forum on Information Technology, Tokyo. 

  • Liang, Z., Liang, H., Nishimura, T., Nishimura, S., Yoshida, Y. (2017) Automatic evaluation on trunk coordination ability using portable devices: feasibility and preliminary results. The 16th Forum on Information Technology, Tokyo. 

  • Liang, Z., Nishimura, S., Nishimura, T., Iino, N. (2017) Understanding effective teaching in advanced English conversation classes through thematic analysis. The 16th Forum on Information Technology, Tokyo.

  • Liang, Z., Chapa-Martell, M. A. (2017). Mining wearable sleep data for detecting unusual sleep. IEICE General Conference, Nagoya. 

  • Liang, Z., Liang, H., Nishimura, T., Chapa-Martell, M. (2016). Quantitative Analysis of Difference between Good and Bad Motion During Coordinated Movements and Its Potential Application to Healthy Aging. In Proc. of HAT-MASH Workshop 2016, Yokohama.

  • Nishimura, T., Yosihda, Y., Liang, Z., et al. (2016). Evaluate the quality of posture and motion: for motion which makes body happy without fatigue and damage. Symposium of Sports Engineering and Human Dynamics, Yamagata.

  • Liang, Z., Nishimura, S., Nishimura, T. (2016) Quantifying core strength in viewpoint of neuromuscular control. In Proceedings of LIFE2016, Sendai. 

  • Liang, Z., Nishimura, S., Nishimura, T. (2016) Quantifying and visualizing trunk strength using mobile devices. Proceedings of the 30th Annual Conference of The Japanese Society for Artificial Intelligence, Kokura.

  • Liang, Z.; Chapa-Martell, M. A. (2015). Development of A Web-Based Automatic Data Analysis Tool for Users Without Statistics Background. Proc. of 10th AEARU Workshop on Computer Science and Web Technology, Tsukuba, Japan

  • Liang, Z., Liu, W., Ploderer, B., Bailey, J., Kulik, L., and Li, Y.(2015). Making Sense of Personal Sleep-Tracking Data through Automated Correlation Analysis and Visualization of Sleep Data and Contextual Information. In Proc. of HAT-MASH Workshop 2015, Yokohama.

  • Liang, Z.; Wakahara, Y. (2014). Microscopic Route Guidance System with Vehicle-Level Rerouting for Facilitating Smooth Travel in City Areas. Proc. of IEICE Society Conference 2014, Tokushima. 【English Session Encouragement Award】

 

  • Liang, Z.; Wakahara, Y. (2014). Proactive Route Guidance System based on Vehicle Ranking. Proc. of IEICE General Conference 2014, Niigata.

 

  • Liang, Z.; Wakahara, Y. (2014). Urban Traffic Prediction Models for Dynamic Route Guidance Systems. Proc. of GCOE Symposium 2014, Tokyo. 【Best Poster Award】

  • Liang Z, Wakahara Y. (2014). Reducing Average Travel Time through Individualized Route Guidance in Urban Traffic Network. Proc. of APNOMS 2014, Hsinchu, Taiwan.

  • Liang Z, Wakahara Y. (2013). Urban Traffic Prediction in the Scope of Intelligent Transportation System. Proc. of APNOMS 2013, Hiroshima, Japan.

 

  • Liang, Z.; Wakahara, Y. (2013). Urban Traffic Prediction Based on Spatial-Temporal Correlation. Proc. of IEICE Society Conference 2013, Fukuoka.

 

  • Liang, Z.; Polak, J.; Wakahara, Y. (2013). Investigation on the Performance of Route Guidance Systems with Imperfect Input. Proc. of IEICE General Conference 2013, Gifu.

 

  • Liang, Z.; Wakahara, Y. (2013). Effect of Imperfect Input on the Benefit of Route Guidance Systems (RGS). The University of Tokyo Multi-disciplinary Student Symposium 2013, Tokyo.

 

  • Yao, X; Liang, Z.; Wakahara, Y. (2012). Extending the Synchronized Multi-Hop Protocol with Fast Transmission Failure Recovery for Multi-Hop Wireless Networks. Proc. of IEICE Network Software Conference.

 

  • Liang, Z.; Yao, X; Wakahara, Y. (2012). A New Intelligent Transport System for Traffic Congestion Management. Proc. of IEICE Society Conference 2012, Toyama.

 

  • Liang, Z.; Wakahara, Y. (2012). Performance Improvement of Route Shortening in Wireless Ad Hoc Network. Proc. of the 16th Network Software Conference, Hakotate.

 

  • Liang, Z.; Taenaka, Y; Wakahara, Y. (2012) Applying Support Vector Machine to Automatic Route Shortening in Wireless Ad Hoc Networks. Proc. of IEICE General Conference 2012, Okayama.

  • Liang Z, Chapa-Martell MA. (2011). Improving women’s health through proactive health education. Proc. of APRU DSC 2011, Beijing, China.

 

  • Liang, Z.; Taenaka, Y; Ogawa, T; Wakahara, Y. (2011). Automatic Route shortening based on Support Vector Machine in Wireless Ad Hoc Networks. Proc. of IEICE Society Conference 2011, Sapporo.

 

  • Liang, Z.; Taenaka, Y; Ogawa, T; Wakahara, Y. (2011). Automatic Route Shortening for Performance Enhancement in Wireless Ad Hoc Networks. Proc. of the 13th Network Software Conference, Kushiro. 【Network Software Research Award】

 

  • Liang, Z.; Taenaka, Y; Ogawa, T; Wakahara, Y. (2011). Incorporating Route Recovery Information to Gossip Routing in Wireless Ad Hoc Network. Proc. of IEICE General Conference 2011, Tokyo.

 

  • Liang, Z.; Taenaka, Y; Ogawa, T; Wakahara, Y. (2010). Automatic Route Recovery Based on Relay Nodes in Wireless Ad Hoc Networks. Proc. of IEICE Society Conference 2010, Osaka.

 

  • Liang, Z.; Ogawa, T; Wakahara, Y. (2010). An Automatic Route Recovery Method Based on Reserved Virtual Local Paths for Wireless Ad Hoc Network. Proc. of IEICE General Conference 2010, Sendai.

Technical Reports

  • Liang Z, Chapa-Martell MA. (2019) Predicting medical-grade sleep/wake classification from Fitbit data using tree-based machine learning. IPSJ SIG Technical Report 2019-UBI-62(14):1-8. 

  • Liang Z, Chapa-Martell MA, Ploderer, B. (2017) Inter-individual differences in sleep quality: insights from mining wearable sleep-tracking data. IPSJ SIG Technical Report 2017-MBL-82 (54):1-6.

  • Nishimura T, Nishimura S, Yoshida Y, Liang Z, et al. (2016) Development of knowledge of texts and on-site evaluation technologies for exercise coaching. IPSJ SIG Technical Report.

  • Liang, Z.; Wakahara, Y. (2013). Real Time Traffic Prediction in Urban Traffic Network. IEICE Technical Report, 2013-ITS-54:5, ITS2013-13, 1-6.

 

  • Liang, Z.; Polak, J.; Wakahara, Y. (2013). Simulation Studies on the Benefit of Route Guidance Generated from Imperfect Traffic Data. IEICE Technical Report, 112:470, ITS2012-62, 37-42.

  • Liang, Z.; Wakahara, Y. (2012) Reliable Local Recovery in Wireless Ad Hoc Networks. IEICE Technical Report, 112:350, NS2012-139, 133-138.

 

  • Yao, X; Liang, Z.; Wakahara, Y. (2012). Synchronized Multi-Hop Protocol with Fast Transmission Failure Recovery for IEEE 802.11 Multi-Hop Wireless Network under Large Interference Range. IEICE Technical Report, 112:350, NS2012-120, 19-24.

 

  • Liang, Z.; Taenaka, Y; Ogawa, T; Wakahara, Y. (2011). Fast and Low-Overhead Route Recovery in Wireless Ad Hoc Networks. IEICT Technical Report, 110:372, NS2010-146, 25-30.

Invited Talk

  • Liang. Z. (2015). Unburdening Overloaded Urban Healthcare Systems with Data-Driven Personalized Self-Care. Singapore Scientific Conference, Singapore.

Essays

  • Liang, Z. (2011). A Multidisciplinary Approach to Solving Complicated Problems in Science and Technology Today: How Effective is it? OIST Sun, Sea, and Science Students (4S) Workshop, Okinawa, Japan.

 

  • Liang, Z. (2010). Chinese Karate Student Learns to Live A Life of Balance. Special to Asahi Newspaper, Travel and Leisure Column. Cited by: Suzuki Music Association of California Orange County Branch Fall 2010 SMAC-OC News; IN-KUNGFU.com (Martial Arts Portal Website)

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