检索结果-内蒙古大学图书馆

5th IEEE International Conference on Electronic information and Communication technology, ICEICT 2022

作者： Ma, Jing Mao, Ying Chen, Hangyu Tian, Yuan Science and Technology on Special System Simulation Laboratory Beijing China College of Information and Communication Engineering Harbin Engineering University Harbin China

ISBN: (数字)9781665472111

ISBN: (纸本)9781665472111

In recent years, with the continuous development of unmanned ground vehicles (UGVs), the performance requirements of unmanned vehicle positioning system are also gradually improved. Existing unmanned ground vehicles need to use a variety of sensors to provide measurement information, and the available positioning information is dynamically combined in the positioning system and the positioning results are calculated. In this paper, multi-source information fusion positioning system of unmanned ground vehicles is established based on factor graph model. In order to solve the problem that the factor graph algorithm is difficult to identify and exclude abnormal observations autonomously, this paper combines the robust estimation with the factor graph to improve the factor graph method. The reliability factor is added in the construction of the factor node, which can be adjusted adaptively according to the current measured value to reduce the weight of abnormal observations and ensure the normal operation of the system. Simulation results show that the improved factor graph algorithm proposed in this paper can effectively reduce the influence of abnormal observations on positioning accuracy. © 2022 IEEE.

关键词： information fusion

来源：评论

学校读者我要写书评

暂无评论

Can Language Models Serve as Temporal Knowledge Bases?

Can Language Models Serve as Temporal Knowledge Bases?

引用

2022 Findings of the Association for Computational Linguistics: EMNLP 2022

作者： Zhao, Ruilin Zhao, Feng Xu, Guandong Zhang, Sixiao Jin, Hai National Engineering Research Center for Big Data Technology and System Services Computing Technology and System Lab Cluster and Grid Computing Lab School of Computer Science and Technology Huazhong University of Science and Technology China Data Science and Machine Intelligence Lab University of Technology Sydney Sydney Australia

Recent progress regarding the use of language models (LMs) as knowledge bases (KBs) has shown that language models can act as structured knowledge bases for storing relational facts. However, most existing works only considered the LM-as-KB paradigm in a static setting, which ignores the analysis of temporal dynamics of world knowledge. Furthermore, a basic function of KBs, i.e., the ability to store conflicting information (i.e., 1-N, N-1 and N-M relations), is underexplored. In this paper, we formulate two practical requirements for treating LMs as temporal KBs: (i) the capacity to store temporally-scoped knowledge that contains conflicting information and (ii) the ability to use stored knowledge for temporally-scoped knowledge queries. We introduce a new dataset called LAMA-TK which is aimed at probing temporally-scoped knowledge, and investigate the two above requirements to explore the LM-as-KB paradigm in the temporal domain. On the one hand, experiments show that LMs can memorize millions of temporally-scoped facts with relatively high accuracy and transfer stored knowledge to temporal knowledge queries, thereby expanding the LM-as-KB paradigm to the temporal domain. On the other hand, we show that memorizing conflicting information, which has been neglected by previous works, is still challenging for LMs and hinders the memorization of other unrelated one-to-one relationships. © 2022 Association for Computational Linguistics.

关键词： Computational linguistics

来源：评论

学校读者我要写书评

暂无评论

High Precision Temperature Sensor Based on p-PhaseShifted FBG and OFDR system

High Precision Temperature Sensor Based on p-PhaseShifted FB...

引用

CLEO: Applications and technology in CLEO 2024, CLEO: A and T 2024 - Part of Conference on Lasers and Electro-Optics

作者： Sun, Zhengqi Lv, Yuejuan Zou, Meng Sun, Qizhen Yan, Zhijun School of Optical and Electronic Information Wuhan National Laboratory for Optoelectronics National Engineering Research Center of Next Generation Internet Access-system Huazhong University of Science and Technology Wuhan430074 China Wuxi Research Institute Huazhong University of Science and Technology Jiangsu Wuxi214174 China

We proposed a high precision temperature sensing system which is based on phase-shifted fiber grating interrogated by an OFDR system. The temperature sensing system showed 0.1°C temperature precision with ±0... 详细信息

关键词： Fiber Bragg gratings

来源：评论

学校读者我要写书评

暂无评论

An SIE Formulation with Loop Analysis for Large-Scale Arbitrarily Shaped Interconnects

An SIE Formulation with Loop Analysis for Large-Scale Arbitr...

引用

2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio science Meeting, AP-S/URSI 2023

作者： Zhu, Zekun Gong, Ningbo Diao, Guijie Yang, Shunchuan School of Electronic and Information Engineering Beihang University Beijing China Beijing Electro-mechanical Engineering Institute Beijing China Science and Technology on Complex System Control and Intelligent Agent Cooperation Laboratory China

ISBN: (纸本)9781665442282

A magneto-quasi-static (MQS) surface integral equation (SIE) formulation with loop analysis is proposed to extract the impedance of interconnects in packages. The loop analysis is developed with an independent and complete set of unknowns according to the graph theory, which can significantly reduce the dimension of the final matrix. With the pre-corrected fast Fourier Transform (pFFT), large-scale interconnects can be efficiently modelled. A practical example in packages is carried out to validate the effectiveness and scalability of the proposed formulation. Results show that the proposed formulation is accurate and flexible to model complex interconnects in packages compared with the industrial solver. © 2023 IEEE.

关键词： Fast Fourier transforms

来源：评论

学校读者我要写书评

暂无评论

Decision Analysis on IoV Routing Transmission and Energy Efficiency Optimization Algorithm with AmBC

引用

Computer Modeling in engineering & sciences 2023年第12期137卷 2661-2673页

作者： Baofeng Ji Mingkun Zhang Weixing Wang Song Chen Henan University of Science and Technology College of Information EngineeringLuoyang471000China Longmen Laboratory Research and Innovation Center of Intelligent SystemLuoyang471000China Institute of Atmospheric Physics Chinese Academy of Sciences(LAGEO)Beijing100000China YTO Group Corporation Luoyang471000China

The improvement of the quality and efficiency of vehicle wireless network data transmission is always a key concern in the Internet of Vehicles(IoV).Routing transmission solved the limitation of transmission distance to a certain *** routing algorithm cannot adapt to complex traffic environment,resulting in low transmission *** order to improve the transmission success rate and quality of vehicle network routing transmission,make the routing algorithm more suitable for complex traffic environment,and reduce transmission power consumption to improve energy efficiency,a comprehensive optimized routing transmission algorithm is *** on the routing transmission algorithm,an optimization algorithmbased on road condition,vehicle status and network performance is proposed to improve the success rate of routing transmission in the *** distance difference and density are used as decision-making indicators to measure Road Side Unit(RSU)assisted *** the Ambient backscatter communication(AmBC)technology and energy collection are used to reduce the energy consumption of routing relay *** energy collection optimization algorithm is proposed to optimize the energy efficiency of AmBC and improve the energy efficiency of *** results show that the proposed routing optimization algorithm can effectively improve the success rate of packet transmission in vehicular ad hoc networks(VANETs),and theAmBC optimization algorithmcan effectively reduce energy consumption in the transmission *** proposed optimization algorithm achieves comprehensive optimization of routing transmission performance and energy efficiency.

关键词： IoV routing algorithm AmBC relay transmission

来源：评论

学校读者我要写书评

暂无评论

2.45 GHz Frequency- Tracking Electro-Optic Imaging Using Polarization CMOS Image Sensor

2.45 GHz Frequency- Tracking Electro-Optic Imaging Using Pol...

引用

2024 IEEE Asia-Pacific Microwave Conference, APMC 2024

作者： Okada, Ryoma Mizuno, Maya Takehara, Hironari Haruta, Makito Tashiro, Hiroyuki Ohta, Jun Sasagawa, Kiyotaka Graduate School of Science and Technology Nara Institute of Science and Technology Nara Ikoma Japan Radio Research Institute National Institute of Information and Communications Technology Koganei Tokyo Japan Graduate School of Science and Technology Nara Institute of Science and Technology Chitose Institute of Science and Technology Department of Opto-Electronic System Engineering Nara Hokkaido Chitose Ikoma Japan Graduate School of Science and Technology Nara Institute of Science and Technology Kyushu University Faculty of Medical Sciences Fukuoka Maidashi Ikoma Japan Institute for Research Initiatives Nara Institute of Science and Technology Nara Ikoma Japan

ISBN: (纸本)9798350363548

In this study, we developed an optical local oscillator signal generation system that tracks the frequency of the electric field to be observed. This system was applied to our highly sensitive electric field imaging system using the electro-optic (EO) effect. It enables electric field imaging by tracking a time-varying frequency wave source, such as frequency modulation (FM). Using this configuration, we successfully imaged at the edge of a PCB antenna with a signal modulated at 2.45 GHz, FM deviation of 100 kHz, and sweep frequency of 100 kHz. © 2024 IEEE.

关键词： CMOS integrated circuits

来源：评论

学校读者我要写书评

暂无评论

Photoluminescence enhancement of carbon quantum dots via the synergistic effect of thiol-ene cross-linking and gold nanoparticles 2

Photoluminescence enhancement of carbon quantum dots via the...

引用

2nd International Academic Conference on Optics and Photonics, IACOP 2024

作者： Wang, Jialiang Li, Mengmeng Feng, Ming Ren, Linjiao Zhang, Pei Jiang, Liying Henan Key Lab of Information-based Electrical Appliances College of Electrical and Information Engineering Zhengzhou University of Light Industry Zhengzhou450000 China School of Electronics and Information Academy for Quantum Science and Technology Zhengzhou University of Light Industry Zhengzhou450000 China

ISBN: (数字)9781510688827

ISBN: (纸本)9781510688810

The co-doping of the CQDs and gold nanoparticles (Au NPs) in the non-stoichiometric thiol-ene (OSTE) polymer was prepared through "click" chemistry reaction. It is interesting to find that the excitation-independent behavior of the CQDs is converted into an excitation-dependent characteristic after polymerization with the OSTE, likely due to changes in the CQDs’ electronic structure. Meanwhile, the PL intensity is also enhanced, being approximately 3 times stronger than that of CQDs in toluene solution. In addition, the PL intensity of the Au-CQDs/OSTE composite reaches its maximum as the concentration of Au NPs is 2.5×10-6 M, which is about 1.87-fold and 1.35-fold stronger than that of CQDs in toluene solution and CQDs/OSTE composite, respectively. We demonstrate that the cross-linking effect of the OSTE polymer, along with the localized surface plasmon resonance (LSPR) effect of the Au NPs, are responsible for the increased PL intensity of the CQDs. © 2025 SPIE.

关键词： Crosslinking

来源：评论

学校读者我要写书评

暂无评论

The“gene”of reversible phase transformation of phase change materials:Octahedral motif

引用

Nano Research 2022年第2期15卷 765-772页

作者： Zhitang Song Ruobing Wang Yuan Xue Sannian Song State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Micro-System and Information TechnologyChinese Academy of SciencesShanghai 200050China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

Nonvolatile phase change random access memory(PCRAM)is regarded as one of promising candidates for next-generation memory in the era of Big *** phase transition mechanism of phase change materials is the key scientific issue to be addressed for phase change ***,obtaining homogeneous phase change materials with high speed,low power consumption,long life and good thermal stability is still the ultimate challenge for high-density three-dimensional(3D)*** this paper,starting from the octahedral structure motifs(octahedrons)which are considered as the"gene"of phase change materials,a new view on the phase transition mechanism is *** on this mechanism,a homogeneous phase change material is developed by constructing three matched octahedrons,which achieved an overall improvement in performance,showing 180℃ten-year data retention,6 ns SET speed,one order of magnitude longer life time and 75%reduced power consumption compared with traditional Ge_(2)Sb_(2)Te_(5)(GST)*** is of great significance to use it in 3D PCRAM chip and multi-level brain-inspired computing chip in the future.

关键词： phase change memory phase transition mechanism octahedral atomic motifs matching high density

来源：评论

学校读者我要写书评

暂无评论

On Approximate Opacity of Stochastic Control systems

引用

IEEE Transactions on Automatic Control 2024年第6期70卷 3846-3861页

作者： Liu, Siyuan Yin, Xiang Dimarogonas, Dimos V. Zamani, Majid Kth Royal Institute of Technology Division of Decision and Control Systems Stockholm Sweden Shanghai Jiao Tong University and Key Lab of System Control & Information Processing Ministry of Education Department of Automation Shanghai China University of Colorado Boulder Computer Science Department CO80309 United States Ludwig Maximilian University of Munich Computer Science Department Germany

This paper investigates an important class of information-flow security property called opacity for stochastic control systems. Opacity captures whether a system's secret behavior (a subset of the system's behavior that is considered to be critical) can be kept from outside observers. Existing works on opacity for control systems only provide a binary characterization of the system's security level by determining whether the system is opaque or not. In this work, we introduce a quantifiable measure of opacity that considers the likelihood of satisfying opacity for stochastic control systems modeled as general Markov decision processes (gMDPs). We also propose verification methods tailored to the new notions of opacity for finite gMDPs by using value iteration techniques. Then, a new notion called approximate opacity-preserving stochastic simulation relation is proposed, which captures the distance between two systems' behaviors in terms of preserving opacity. Based on this new system relation, we show that one can verify opacity for stochastic control systems using their abstractions (modeled as finite gMDPs). We also discuss how to construct such abstractions for a class of gMDPs under certain stability conditions. © 1963-2012 IEEE.

关键词： Stochastic control systems

来源：评论

学校读者我要写书评

暂无评论

MUNE: A Multi-Level User-News Embedding Model for Personalised News Recommendations 24

MUNE: A Multi-Level User-News Embedding Model for Personalis...

引用

8th International Conference on Computer science and Artificial Intelligence, CSAI 2024

作者： Long, Haixiang Luo, Xudong School of Computer Science and Engineering Guangxi Key Lab of Multi-Source Information Mining & Security Key Lab of Education Blockchain and Intelligent Technology of Ministry of Education Guangxi Normal University Guangxi Guilin China

ISBN: (纸本)9798400718182

Personalised news recommendation systems are critical for delivering relevant content, but effectively capturing and modelling users’ diverse and evolving interests is challenging. In this paper, we introduce a Multi-level User-News Embedding (MUNE) model for personalised news recommendations. MUNE uses pre-trained BERT embeddings to generate contextual representations, enabling dynamic, multi-level interaction modelling between users and candidate news. It incorporates a Dynamic Multi-Level Interaction Attention (DMIA) module for capturing complex interactions and a Dynamic Similarity Unit (DSU) for enhancing feature fusion using cosine similarity and non-linear transformations. Evaluated on large-scale datasets (MIND and EB-NeRD), MUNE significantly outperforms state-of-the-art baselines in key metrics, with ablation studies validating the importance of DMIA and DSU in improving user interest modelling and recommendation quality. MUNE’s integration of multi-level features makes it highly effective in capturing user behaviours and understanding news content. © 2024 Copyright held by the owner/author(s).

关键词： Linear transformations

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：