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1. SYNC+SYNC: Software Cache Write Covert Channels Exploiting Memory-disk Synchronization

Author

Chen, Congcong, Cui, Jinhua, Qu, Gang, and Zhang, Jiliang

Subjects
Computer Science - Cryptography and Security
Abstract

Memory-disk synchronization is a critical technology for ensuring data correctness, integrity, and security, especially in systems that handle sensitive information like financial transactions and medical records. We propose SYNC+SYNC, a group of attacks that exploit the memory-disk synchronization primitives. SYNC+SYNC works by subtly varying the timing of synchronization on the write buffer, offering several advantages: 1) implemented purely in software, enabling deployment on any hardware devices; 2) resilient against existing cache partitioning and randomization techniques; 3) unaffected by prefetching techniques and cache replacement strategies. We present the principles of SYNC+SYNC through the implementation of two write covert channel protocols, using either a single file or page, and introduce three enhanced strategies that utilize multiple files and pages. The feasibility of these channels is demonstrated in both cross-process and cross-sandbox scenarios across diverse operating systems (OSes). Experimental results show that, the average rate can reach 2.036 Kb/s (with a peak rate of 14.762 Kb/s) and the error rate is 0% on Linux; when running on macOS, the average rate achieves 10.211 Kb/s (with a peak rate of 253.022 Kb/s) and the error rate is 0.004%. To the best of our knowledge, SYNC+SYNC is the first high-speed write covert channel for software cache., Comment: This manuscript was first submitted to the 33rd USENIX Security Symposium on June 6, 2023 (Summer Review Cycle)

Published
2023

5. Optimization of Rolling Stock Scheduling for Multi-line Suburban Railways with Minimization of Deadhead Time. A Case Study of Wenzhou Suburban Rail Network

Author

Song, Weiwei, Ye, Yuling, Chen, Congcong, Zhu, Ziyue, Zhou, Wentao, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Tan, Kay Chen, Series Editor, Yang, Jianwei, editor, Diao, Lijun, editor, Yao, Dechen, editor, and An, Min, editor

Published
2024
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6. Risk Factors of Streetcar Intersections Based on the FISM Method : A Case Study of Jiaxing Streetcar Line T1

Author

Chen, Congcong, Jin, Yufei, Song, Weiwei, Ye, Yuling, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Tan, Kay Chen, Series Editor, Yang, Jianwei, editor, Diao, Lijun, editor, Yao, Dechen, editor, and An, Min, editor

Published
2024
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7. Que2Engage: Embedding-based Retrieval for Relevant and Engaging Products at Facebook Marketplace

Author

He, Yunzhong, Tian, Yuxin, Wang, Mengjiao, Chen, Feier, Yu, Licheng, Tang, Maolong, Chen, Congcong, Zhang, Ning, Kuang, Bin, and Prakash, Arul

Subjects
Computer Science - Information Retrieval, Computer Science - Artificial Intelligence, Computer Science - Machine Learning
Abstract

Embedding-based Retrieval (EBR) in e-commerce search is a powerful search retrieval technique to address semantic matches between search queries and products. However, commercial search engines like Facebook Marketplace Search are complex multi-stage systems optimized for multiple business objectives. At Facebook Marketplace, search retrieval focuses on matching search queries with relevant products, while search ranking puts more emphasis on contextual signals to up-rank the more engaging products. As a result, the end-to-end searcher experience is a function of both relevance and engagement, and the interaction between different stages of the system. This presents challenges to EBR systems in order to optimize for better searcher experiences. In this paper we presents Que2Engage, a search EBR system built towards bridging the gap between retrieval and ranking for end-to-end optimizations. Que2Engage takes a multimodal & multitask approach to infuse contextual information into the retrieval stage and to balance different business objectives. We show the effectiveness of our approach via a multitask evaluation framework and thorough baseline comparisons and ablation studies. Que2Engage is deployed on Facebook Marketplace Search and shows significant improvements in searcher engagement in two weeks of A/B testing., Comment: Accepted by WWW'2023

Published
2023
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21. Chemoenzymatic modular assembly of O-GalNAc glycans for functional glycomics.

Author

Wang, Shuaishuai, Chen, Congcong, Gadi, Madhusudhan Reddy, Saikam, Varma, Liu, Ding, Zhu, He, Bollag, Roni, Liu, Kebin, Chen, Xi, Wang, Fengshan, Wang, Peng George, Ling, Peixue, Guan, Wanyi, and Li, Lei

Subjects
Humans, Carbohydrates, Polysaccharides, Carrier Proteins, Mucins, Epitopes, Microarray Analysis, Glycosylation, Glycomics
Abstract

O-GalNAc glycans (or mucin O-glycans) play pivotal roles in diverse biological and pathological processes, including tumor growth and progression. Structurally defined O-GalNAc glycans are essential for functional studies but synthetic challenges and their inherent structural diversity and complexity have limited access to these compounds. Herein, we report an efficient and robust chemoenzymatic modular assembly (CEMA) strategy to construct structurally diverse O-GalNAc glycans. The key to this strategy is the convergent assembly of O-GalNAc cores 1-4 and 6 from three chemical building blocks, followed by enzymatic diversification of the cores by 13 well-tailored enzyme modules. A total of 83 O-GalNAc glycans presenting various natural glycan epitopes are obtained and used to generate a unique synthetic mucin O-glycan microarray. Binding specificities of glycan-binding proteins (GBPs) including plant lectins and selected anti-glycan antibodies towards these O-GalNAc glycans are revealed by this microarray, promoting their applicability in functional O-glycomics. Serum samples from colorectal cancer patients and healthy controls are assayed using the array reveal higher bindings towards less common cores 3, 4, and 6 than abundant cores 1 and 2, providing insights into O-GalNAc glycan structure-activity relationships.

Published
2021

23. Leukocyte telomere length in children born following blastocyst-stage embryo transfer

Author

Wang, Cheng, Gu, Yayun, Zhou, Jun, Zang, Jie, Ling, Xiufeng, Li, Hong, Hu, Lingmin, Xu, Bei, Zhang, Bo, Qin, Na, Lv, Hong, Duan, Weiwei, Jiang, Yue, He, Yuanlin, Jiang, Tao, Chen, Congcong, Han, Xiumei, Zhou, Kun, Xu, Bo, Liu, Xiaoyu, Tao, Shiyao, Jiang, Yangqian, Du, Jiangbo, Dai, Juncheng, Diao, Feiyang, Lu, Chuncheng, Guo, Xuejiang, Huo, Ran, Liu, Jiayin, Lin, Yuan, Xia, Yankai, Jin, Guangfu, Ma, Hongxia, Shen, Hongbing, and Hu, Zhibin

Published
2022
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40. The Effect of Temperature on the Distribution Characteristics of Spatial Electric Field in Oil of Oil-Pressboard Insulation Under Impulse Voltage

Author

Wu, Juzhen, Yuan, Qing, Chen, Congcong, Gao, Chunjia, Qi, Bo, Li, Chengrong, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Liang, Xidong, editor, Li, Yaohua, editor, He, Jinghan, editor, and Yang, Qingxin, editor

Published
2022
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41. Experimental Study on the Partial Discharge Inception Characteristics of Different Pressboards for Electrical Purpose

Author

Liu, Xin, Chen, Congcong, Hao, Hanbing, Wang, Taiping, Zhang, Xueyou, Gao, Chunjia, Qi, Bo, Li, Chengrong, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Yang, Qingxin, editor, Liang, Xidong, editor, Li, Yaohua, editor, and He, Jinghan, editor

Published
2022
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47. Research progress of enhanced recovery after surgery in perioperative nursing of elderly patients undergoing surgery for lung cancer (快速康复外科理念在老年肺癌患者围手术期护理中应用的研究进展)

Author

ZHAO Xin (赵欣), CHEN Congcong (陈聪聪), and ZHANG Jiang (张晶)

Subjects
lung cancer, elderly patients, perioperative nursing, enhanced recovery after surgery, 肺癌, 老年患者, 围手术期护理, 快速康复外科, Nursing, RT1-120
Abstract

Enhancement of perioperative nursing plays an important role in helping the recovery of elderly patients undergoing surgery for lung cancer. This paper summarized the application of enhanced recovery after surgery (ERAS) in perioperative nursing of elderly patients undergoing surgery for lung cancer, and provided reference for quality improvement of clincal practice. (老年肺癌患者的围手术期护理对促进其术后康复有着重要作用。本文主要总结了快速康复外科(ERAS)理念在老年肺癌患者围手术期护理中的应用进展, 以期为临床进一步完善相关护理提供参考。)

Published
2022
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