Science China Information Sciences最新文献_第6页

Artificial intelligence-assisted design of new chemical materials: a perspective 人工智能辅助设计新型化学材料：一个视角

IF 7.3 2区计算机科学

Science China Information Sciences Pub Date : 2024-07-19 DOI: 10.1007/s11432-023-4096-9

Feng Qian, Wenli Du, W. Zhong, Yang Tang, Jingyi Lu

引用次数: 0

Review of chiplet-based design: system architecture and interconnection 基于芯片组的设计回顾：系统架构和互连

IF 8.8 2区计算机科学

Science China Information Sciences Pub Date : 2024-07-19 DOI: 10.1007/s11432-023-3926-8

Yafei Liu, Xiangyu Li, Shouyi Yin

{"title":"Review of chiplet-based design: system architecture and interconnection","authors":"Yafei Liu, Xiangyu Li, Shouyi Yin","doi":"10.1007/s11432-023-3926-8","DOIUrl":"https://doi.org/10.1007/s11432-023-3926-8","url":null,"abstract":"Chiplet-based design, which breaks a system into multiple smaller dice (or “chiplets”) and reassembles them into a new system chip through advanced packaging, has received extensive attention in the post Moore’s law era due to its advantages in terms of cost, performance, and agility. However, significant challenges arise in this implementation approach, including the mapping of functional components onto chiplets, co-optimization of package and architecture, handling the increased latency of communication across functions in different dies, the uncertainty problems of fragment communication subsystems, such as maintaining deadlock-free when independently designed chiplets are combined. Despite various design approaches that attempt to address these challenges, surveying these approaches one-after-another is not the most helpful way to offer a comparative viewpoint. Accordingly, in this paper, we present a more comprehensive and systematic strategy to survey the various approaches. First, we divide them into chiplet-based system architecture design and interconnection design, and further classify them based on different architectures and building blocks of interconnection. Then, we analyze and cross-compare each classification separately, and in addition, we present a topical discussion on the evolution of memory architectures, design automation, and other relevant topics in chiplet-based designs. Finally, some discussions on important topics are presented, emphasizing future needs and challenges in this rapidly evolving field.","PeriodicalId":21618,"journal":{"name":"Science China Information Sciences","volume":null,"pages":null},"PeriodicalIF":8.8,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141786024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A 56 Gb/s DAC-DSP-based transmitter with adaptive retiming clock optimization using inverse-PR-based PD achieving 8-UI converge time in 28-nm CMOS 基于 DAC-DSP 的 56 Gb/s 发射器，采用基于反 PR 的 PD 进行自适应重定时时钟优化，在 28-nm CMOS 中实现 8-UI 收敛时间

IF 8.8 2区计算机科学

Science China Information Sciences Pub Date : 2024-07-17 DOI: 10.1007/s11432-024-4072-9

Shubin Liu, Chenxi Han, Xiaoteng Zhao, Yuhao Zhang, Shixin Li, Hongzhi Liang, Lihong Yang, Zhangming Zhu

引用次数: 0

A 10-GS/s 8-bit 2× time interleaved hybrid ADC with λ/4 reference T-Line sharing technique 采用 λ/4 基准 T 线共享技术的 10-GS/s 8 位 2× 时间交错混合 ADC

IF 8.8 2区计算机科学

Science China Information Sciences Pub Date : 2024-07-16 DOI: 10.1007/s11432-024-4082-9

Zhangming Zhu, Jun Chang, Hongzhi Liang, Ruixue Ding, Shubin Liu

引用次数: 0

On optimal streaming kernelization algorithms 关于最佳流核化算法

IF 7.3 2区计算机科学

Science China Information Sciences Pub Date : 2024-07-16 DOI: 10.1007/s11432-023-4080-3

Hao Feng, Wei Yang, Jianer Chen

引用次数: 0

A CSP-based retraining framework for motor imagery based brain-computer interfaces 基于 CSP 的运动图像脑机接口再训练框架

IF 8.8 2区计算机科学

Science China Information Sciences Pub Date : 2024-07-16 DOI: 10.1007/s11432-024-4081-x

Xue Jiang, Lubin Meng, Xinru Chen, Dongrui Wu

引用次数: 0

Tuning the ferroelectricity of Hf0.5Zr0.5O2 with alloy electrodes 用合金电极调节 Hf0.5Zr0.5O2 的铁电性

IF 8.8 2区计算机科学

Science China Information Sciences Pub Date : 2024-07-15 DOI: 10.1007/s11432-023-3932-2

Keqin Liu, Bingjie Dang, Zhiyu Yang, Teng Zhang, Zhen Yang, Jinxuan Bai, Zelun Pan, Ru Huang, Yuchao Yang

{"title":"Tuning the ferroelectricity of Hf0.5Zr0.5O2 with alloy electrodes","authors":"Keqin Liu, Bingjie Dang, Zhiyu Yang, Teng Zhang, Zhen Yang, Jinxuan Bai, Zelun Pan, Ru Huang, Yuchao Yang","doi":"10.1007/s11432-023-3932-2","DOIUrl":"https://doi.org/10.1007/s11432-023-3932-2","url":null,"abstract":"Tuning ferroelectricity of Hf0.5Zr0.5O2 is crucial for facilitating its practical applications in various fields, including in-memory and neuromorphic computing. Previous studies have revealed that the electrodes have a significant influence on ferroelectricity, and changing electrode materials can realize different but discrete ferroelectric polarization values. Here, we introduce an alloy-electrode method, in order to achieve gradual and accurate modulation of ferroelectric polarization, especially useful for matching the polarization charges at the interface of ferroelectric insulators and ferroelectric semiconductors. Au and W electrodes are chosen as baselines for realizing weak and strong ferroelectric polarization, where the intermediate states can be achieved by adjusting the ratio of metals in the Au-W alloy. To demonstrate the generality of this approach, the Cu-W alloy electrode is also realized for tuning ferroelectric polarization. The effect of alloy electrodes on device leakage current, endurance, and retention is evaluated. In addition, the temperature stability of ferroelectric capacitors is tested, where limited changes in both remnant polarization and coercive voltages are observed, showing the great potential of the ferroelectric hafnium oxide. Such gradual modulation of ferroelectric polarization could facilitate the application of Hf0.5Zr0.5O2 in in-memory and neuromorphic computing.","PeriodicalId":21618,"journal":{"name":"Science China Information Sciences","volume":null,"pages":null},"PeriodicalIF":8.8,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141740295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A column-shared histogramming TDC with pixel-to-pixel coincidence detection and compact analog counters for Flash LiDAR sensor 用于闪存激光雷达传感器的列共享直方图 TDC，具有像素到像素重合检测功能和紧凑型模拟计数器

IF 8.8 2区计算机科学

Science China Information Sciences Pub Date : 2024-07-10 DOI: 10.1007/s11432-024-4079-x

Haoran Wu, Kaiming Nie, Jiangtao Xu, Qinglong Lin, Yingying Jiao

引用次数: 0

State estimation for delayed switched positive systems: delayed radius approach 延迟开关正系统的状态估计：延迟半径法

IF 8.8 2区计算机科学

Science China Information Sciences Pub Date : 2024-07-04 DOI: 10.1007/s11432-023-3980-0

Weizhong Chen, Zhongyang Fei, Xudong Zhao, Zheng-Guang Wu

{"title":"State estimation for delayed switched positive systems: delayed radius approach","authors":"Weizhong Chen, Zhongyang Fei, Xudong Zhao, Zheng-Guang Wu","doi":"10.1007/s11432-023-3980-0","DOIUrl":"https://doi.org/10.1007/s11432-023-3980-0","url":null,"abstract":"In this paper, an interval estimation scheme is developed for delayed switched positive systems (DSPS) with mode-dependent average dwell time switching. A lossless zonotopic estimation approach is proposed for the delayed intersection zonotope with the positive generator matrix. First, considering the existence of asynchronism between the system mode and the correction matrix mode, the mismatched intersection zonotope is constructed for DSPS to verify the consistency between the system model and outputs. Then, by utilizing the introduced radius definitions, the ℓ∞ performance is addressed to optimize the size of delayed intersection zonotopes. Subsequently, we present a joint-design approach of switching signals and the mode-dependent correction matrix by constructing positive generator matrix-based delayed radius functions. Furthermore, guaranteed nonnegative state bounds are derived for the considered DSPS based on the proposed lossless zonotopic estimation criteria. Finally, detailed simulations are conducted to validate the feasibility and superiority of the developed methods.","PeriodicalId":21618,"journal":{"name":"Science China Information Sciences","volume":null,"pages":null},"PeriodicalIF":8.8,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141784756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

HEN: a novel hybrid explainable neural network based framework for robust network intrusion detection HEN：基于混合可解释神经网络的新型鲁棒网络入侵检测框架

IF 8.8 2区计算机科学

Science China Information Sciences Pub Date : 2024-06-28 DOI: 10.1007/s11432-023-4067-x

Wei Wei, Sijin Chen, Cen Chen, Heshi Wang, Jing Liu, Zhongyao Cheng, Xiaofeng Zou

{"title":"HEN: a novel hybrid explainable neural network based framework for robust network intrusion detection","authors":"Wei Wei, Sijin Chen, Cen Chen, Heshi Wang, Jing Liu, Zhongyao Cheng, Xiaofeng Zou","doi":"10.1007/s11432-023-4067-x","DOIUrl":"https://doi.org/10.1007/s11432-023-4067-x","url":null,"abstract":"With the rapid development of network technology and the automation process for 5G, cyber-attacks have become increasingly complex and threatening. In response to these threats, researchers have developed various network intrusion detection systems (NIDS) to monitor network traffic. However, the incessant emergence of new attack techniques and the lack of system interpretability pose challenges to improving the detection performance of NIDS. To address these issues, this paper proposes a hybrid explainable neural network-based framework that improves both the interpretability of our model and the performance in detecting new attacks through the innovative application of the explainable artificial intelligence (XAI) method. We effectively introduce the Shapley additive explanations (SHAP) method to explain a light gradient boosting machine (LightGBM) model. Additionally, we propose an autoencoder long-term short-term memory (AE-LSTM) network to reconstruct SHAP values previously generated. Furthermore, we define a threshold based on reconstruction errors observed during the training phase. Any network flow that surpasses the specified threshold is classified as an attack flow. This approach enhances the framework’s ability to accurately identify attacks. We achieve an accuracy of 92.65%, a recall of 95.26%, a precision of 92.57%, and an F1-score of 93.90% on the dataset NSL-KDD. Experimental results demonstrate that our approach generates detection performance on par with state-of-the-art methods.","PeriodicalId":21618,"journal":{"name":"Science China Information Sciences","volume":null,"pages":null},"PeriodicalIF":8.8,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141515954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0