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525 results on '"Hu, Juncheng"'

1. Crash Consistency in DRAM-NVM-Disk Hybrid Storage System

Author

Wang, Guoyu, Che, Xilong, Wei, Haoyang, Pei, Chenju, and Hu, Juncheng

Subjects
Computer Science - Operating Systems
Abstract

NVM is used as a new hierarchy in the storage system, due to its intermediate speed and capacity between DRAM, and its byte granularity. However, consistency problems emerge when we attempt to put DRAM, NVM, and disk together as an efficient whole. In this paper, we discuss the challenging consistency problems faced by heterogeneous storage systems, and propose our solution to the problems. The discussion is based on NVPC as a case study, but can be inspiring and adaptive to all similar heterogeneous storage systems.

Published
2024

2. NVPC: A Transparent NVM Page Cache

Author

Wang, Guoyu, Che, Xilong, Wei, Haoyang, Chen, Shuo, He, Puyi, and Hu, Juncheng

Subjects
Computer Science - Operating Systems
Abstract

Towards a compatible utilization of NVM, NVM-specialized kernel file systems and NVM-based disk file system accelerators have been proposed. However, these studies only focus on one or several characteristics of NVM, while failing to exploit its best practice by putting NVM in the proper position of the whole storage stack. In this paper, we present NVPC, a transparent acceleration to existing kernel file systems with an NVM-enhanced page cache. The acceleration lies in two aspects, respectively matching the desperate needs of existing disk file systems: sync writes and cache-missed operations. Besides, the fast DRAM page cache is preserved for cache-hit operations. For sync writes, a high-performance log-based sync absorbing area is provided to redirect data destination from the slow disk to the fast NVM. Meanwhile, the byte-addressable feature of NVM is used to prevent write amplification. For cache-missed operations, NVPC makes use of the idle space on NVM to extend the DRAM page cache, so that more and larger workloads can fit into the cache. NVPC is entirely implemented as a page cache, thus can provide efficient speed-up to disk file systems with full transparency to users and full compatibility to lower file systems. In Filebench macro-benchmarks, NVPC achieves at most 3.55x, 2.84x, and 2.64x faster than NOVA, Ext-4, and SPFS. In RocksDB workloads with working set larger than DRAM, NVPC achieves 1.12x, 2.59x, and 2.11x faster than NOVA, Ext-4, and SPFS. Meanwhile, NVPC gains positive revenue from NOVA, Ext-4, and SPFS in 62.5% of the tested cases in our read/write/sync mixed evaluation, demonstrating that NVPC is more balanced and adaptive to complex real-world workloads. Experimental results also show that NVPC is the only method that accelerates Ext-4 in particular cases for up to 15.19x, with no slow-down to any other use cases.

Published
2024

3. VectorPainter: A Novel Approach to Stylized Vector Graphics Synthesis with Vectorized Strokes

Author

Hu, Juncheng, Xing, Ximing, Zhang, Zhengqi, Zhang, Jing, and Yu, Qian

Subjects
Computer Science - Computer Vision and Pattern Recognition
Abstract

We propose a novel method, VectorPainter, for the task of stylized vector graphics synthesis. Given a text prompt and a reference style image, VectorPainter generates a vector graphic that aligns in content with the text prompt and remains faithful in style to the reference image. We recognize that the key to this task lies in fully leveraging the intrinsic properties of vector graphics. Innovatively, we conceptualize the stylization process as the rearrangement of vectorized strokes extracted from the reference image. VectorPainter employs an optimization-based pipeline. It begins by extracting vectorized strokes from the reference image, which are then used to initialize the synthesis process. To ensure fidelity to the reference style, a novel style preservation loss is introduced. Extensive experiments have been conducted to demonstrate that our method is capable of aligning with the text description while remaining faithful to the reference image.

Published
2024

5. 5G MEC+AI Pathology 'Anti-Cancer Guardian': Design of Intelligent Gastric Cancer Auxiliary Diagnosis and Warning Platform for Smart Hospital System

Author

Sun, Xin, Shu, Xin, Hu, Juncheng, Mo, Chunbao, Goos, Gerhard, Series Editor, Hartmanis, Juris, Founding Editor, van Leeuwen, Jan, Series Editor, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Kobsa, Alfred, Series Editor, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Nierstrasz, Oscar, Series Editor, Pandu Rangan, C., Editorial Board Member, Sudan, Madhu, Series Editor, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Weikum, Gerhard, Series Editor, Vardi, Moshe Y, Series Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, and Duffy, Vincent G., editor

Published
2024
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6. Study and Validation Protocol of Risk Prediction Model for Deep Venous Thrombosis After Severe Traumatic Brain Injury Based on Machine Learning Algorithms

Author

Wei, Yongping, Lin, Qin, Hu, Juncheng, Goos, Gerhard, Series Editor, Hartmanis, Juris, Founding Editor, van Leeuwen, Jan, Series Editor, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Kobsa, Alfred, Series Editor, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Nierstrasz, Oscar, Series Editor, Pandu Rangan, C., Editorial Board Member, Sudan, Madhu, Series Editor, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Weikum, Gerhard, Series Editor, Vardi, Moshe Y, Series Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, and Duffy, Vincent G., editor

Published
2024
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7. CardioRisk: Predictive Application for Myocardial Infarction Incident Risk Assessment Based on Blood Pressure-Glucose-Lipid Patterns

Author

Shu, Xin, Sun, Xin, Hu, Juncheng, Mo, Chunbao, Goos, Gerhard, Series Editor, Hartmanis, Juris, Founding Editor, van Leeuwen, Jan, Series Editor, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Kobsa, Alfred, Series Editor, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Nierstrasz, Oscar, Series Editor, Pandu Rangan, C., Editorial Board Member, Sudan, Madhu, Series Editor, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Weikum, Gerhard, Series Editor, Vardi, Moshe Y, Series Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, and Duffy, Vincent G., editor

Published
2024
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8. Development and Application of a Machine Learning-Based Prediction Model for 6-Month Unplanned Readmission in Heart Failure Patients

Author

Hu, Juncheng, Mo, Chunbao, Goos, Gerhard, Series Editor, Hartmanis, Juris, Founding Editor, van Leeuwen, Jan, Series Editor, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Kobsa, Alfred, Series Editor, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Nierstrasz, Oscar, Series Editor, Pandu Rangan, C., Editorial Board Member, Sudan, Madhu, Series Editor, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Weikum, Gerhard, Series Editor, Vardi, Moshe Y, Series Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, and Duffy, Vincent G., editor

Published
2024
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9. Design and Optimization Strategy of a CNN Aided Pre-hospital Diagnosis System for Myocardial Infarction

Author

Hu, Juncheng, Zhou, Youtian, Mo, Chunbao, Goos, Gerhard, Series Editor, Hartmanis, Juris, Founding Editor, van Leeuwen, Jan, Series Editor, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Kobsa, Alfred, Series Editor, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Nierstrasz, Oscar, Series Editor, Pandu Rangan, C., Editorial Board Member, Sudan, Madhu, Series Editor, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Weikum, Gerhard, Series Editor, Vardi, Moshe Y, Series Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, and Duffy, Vincent G., editor

Published
2024
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10. Identification of signaling pathways that specify a subset of migrating enteric neural crest cells at the wavefront in mouse embryos

Author

Zhou, Bingyan, Feng, Chenzhao, Sun, Song, Chen, Xuyong, Zhuansun, Didi, Wang, Di, Yu, Xiaosi, Meng, Xinyao, Xiao, Jun, Wu, Luyao, Wang, Jing, Chen, Ke, Li, Zejian, You, Jingyi, Mao, Handan, Yang, Shimin, Zhang, Jiaxin, Jiao, Chunlei, Li, Zhi, Yu, Donghai, Wu, Xiaojuan, Zhu, Tianqi, Yang, Jixin, Xiang, Lei, Liu, Jiazhe, Chai, Tailiang, Shen, Juan, Mao, Chuan-Xi, Hu, Juncheng, Hao, Xingjie, Xiong, Bo, Zheng, Shan, Liu, Zhihua, and Feng, Jiexiong

Published
2024
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42. General synthesis of secondary imines via reductive coupling of carbonyl and nitro compounds employing a reusable cobalt catalyst

Author

Zhang, Chaochong, primary, He, Yurong, additional, Zhou, Peng, additional, Ma, Yuandie, additional, Yuan, Ziliang, additional, She, Guoqiang, additional, Zheng, Zhe, additional, Hu, Juncheng, additional, Jiang, Qingqing, additional, Lam, Jason Chun-Ho, additional, Han, Bo, additional, Zhang, Zehui, additional, and Liu, Bing, additional

Published
2024
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