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16th Innovations in Theoretical Computer Science Conference, ITCS 2025

作者： Resch, Nicolas Yuan, Chen Zhang, Yihan Informatics’ Institute University of Amsterdam Netherlands School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University China Institute of Science and Technology Austria Klosterneuburg Austria

ISBN: (纸本)9783959773614

In this work, we consider the list-decodability and list-recoverability of codes in the zero-rate regime. Briefly, a code C Ď rqsn is (p, , L)-list-recoverable if for all tuples of input lists (Y1, . . ., Yn) with each Yi Ď rqs and |Yi| ", the number of codewords c P C such that ci R Yi for at most pn choices of i P rns is less than L;list-decoding is the special case of "1. In recent work by Resch, Yuan and Zhang (ICALP 2023) the zero-rate threshold for list-recovery was determined for all parameters: that is, the work explicitly computes p*:"p*(q, , L) with the property that for all Ε ą 0 (a) there exist positive-rate (p* - Ε, , L)-list-recoverable codes, and (b) any (p* + Ε, , L)-list-recoverable code has rate 0. In fact, in the latter case the code has constant size, independent on n. However, the constant size in their work is quite large in 1/Ε, at least |C| ě (1Ε)O(qL). Our contribution in this work is to show that for all choices of q, and L with q ě 3, any (p* + Ε, , L)-list-recoverable code must have size Oq,,L(1/Ε), and furthermore this upper bound is complemented by a matching lower bound Ωq,,L(1/Ε). This greatly generalizes work by Alon, Bukh and Polyanskiy (IEEE Trans. Inf. Theory 2018) which focused only on the case of binary alphabet (and thus necessarily only list-decoding). We remark that we can in fact recover the same result for q "2 and even L, as obtained by Alon, Bukh and Polyanskiy: we thus strictly generalize their work. Our main technical contribution is to (a) properly define a linear programming relaxation of the list-recovery condition over large alphabets;and (b) to demonstrate that a certain function defined on a q-ary probability simplex is maximized by the uniform distribution. This represents the core challenge in generalizing to larger q (as a binary simplex can be naturally identified with a one-dimensional interval). We can subsequently re-utilize certain Schur convexity and convexity properties established for a related function

关键词： Decoding

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Retrieval and validation of long-term aerosol optical depth from AVHRR data over China

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International Journal of Digital Earth 2022年第1期15卷 1817-1832页

作者： Chunlin Jin Yong Xue Xingxing Jiang Shuhui Wu Yuxin Sun School of Environment and Spatial Informatics China University of Mining and TechnologyXuzhouPeople’s Republic of China School of Computing and Engineering College of Science and EngineeringUniversity of DerbyDerbyUK

Advanced Very High Resolution Radiometer(AVHRR)onboard National Oceanic and Atmospheric Administration(NOAA)satellites can provide over 40 years of global remote sensing observations,which can be used to retrieve long-term aerosol optical depth(AOD).This is of great significance to the study of global climate *** this paper,we proposed an algorithm to jointly calculate AOD and land surface properties from AVHRR *** assumptions that AOD doesn’t vary in adjacent space and earth surface property doesn’t vary in two days,the algorithm considered non-Lambertian surface reflection based on the shape of bidirectional reflectance distribution function(BRDF shape)and obtained AOD and surface property by optimal estimation(OE)*** algorithm has been applied to NOAA-7,9,11,14,16,18,and 19 satellites and AVHRR-retrieved AOD with 5×10 km over China(15°–60°N,70°–140°E)has been obtained from 1982 to *** of AVHRR-retrieved AOD against AErosol RObotic NETwork(AERONET)(in and around China)and China Aerosol Remote Sensing Network(CARSNET)AOD show good consistency with 62.62%points within the uncertainty ofΔτ=±(0.05+0.25τ)and root-mean-square error(RMSE)of *** comparison of the monthly mean AOD of multiple AOD datasets in the‘Beijing’,‘Dalanzadgad’,‘NCU_Taiwan’and‘Kanpur’stations shows that the results of the algorithm are *** yearly averaged AOD data also has similar agreements with MERRA-2(The Modern-Era Retrospective analysis for Research and Applications,Version 2)and AVHRRDB data(AVHRR‘Deep Blue’aerosol data set).The multi-year mean correlation coefficient is 0.70 and 0.61 and the percentages within the uncertainty are 80.01%and 67.29%compared with MERRA-2 AOD and AVHRRDB AOD respectively.

关键词： Long-term AOD AVHRR joint retrieval BRDF shape

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Concept of Mixed Reality Application Design for Technical Solutions 8th

Concept of Mixed Reality Application Design for Technical So...

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8th EAI International Conference on Management of Manufacturing Systems, MMS 2023

作者： Husár, Jozef Hrehová, Stella Knapčíková, Lucia Trojanowska, Justyna Technical University of Košice Faculty of Manufacturing Technologies Department of Industrial Engineering and Informatics Prešov Slovakia Poznan University of Technology Faculty of Mechanical Engineering Department of Production Engineering Poznan Poland

ISBN: (纸本)9783031531606

Mixed reality (MR) is a rapidly expanding technology whose usability is constantly growing. Some applications of MR technology have already matured, while others are still in development. MR offers new possibilities in the area of interaction with objects in space. This can be used in technical solutions, especially in employee training, education, and virtual product prototyping. In addition, users can "virtually" test and train products and machines using before they even exist, which can lead to improved usability and better ergonomic design. This article provides an overview of tools and devices for building mixed reality applications. In the design part, a step-by-step manual is devoted to the creation of an MR application depicting machinery, with which it is possible to work with a hologram in a real environment. This procedure is subsequently generalized into a methodological algorithm for creating an MR application. The universal procedure can be used by designers, application programmers, but also by the general public, as a manual according to which we can import any 3D model into HoloLens 2 smart glasses. The proposed methodology offers unlimited potential for the use of MR in technical solutions. © The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.

关键词： Mixed reality

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Anomaly detection on displacement rates and deformation pattern features using tree-based algorithm in Japan and Indonesia

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Geodesy and Geodynamics 2023年第2期14卷 150-162页

作者： Adi Wibowo Satriawan Rasyid Purnama Cecep Pratama Leni Sophia Heliani David P.Sahara Sidik Tri Wibowo Department of Informatics Universitas Diponeegoro UniversitySemarangIndonesia Department of Geodetic Engineering Universitas Gadjah MadaYogyakartaIndonesia Global Geophysics Research Group Faculty of Mining and Petroleum EngineeringInstitute of Technology BandungBandungIndonesia Geospatial Information Agency Indonesia

Research on strain anomalies and large earthquakes based on temporal and spatial crustal activities has been rapidly growing due to data availability, especially in Japan and Indonesia. However, many research works used local-scale case studies that focused on a specific earthquake characteristic using knowledgedriven techniques, such as crustal deformation analysis. In this study, a data-driven-based analysis is used to detect anomalies using displacement rates and deformation pattern features extracted from daily global navigation satellite system(GNSS) data using a machine learning algorithm. The GNSS data with188 and 1181 continuously operating reference stations from Indonesia and Japan, respectively, are used to identify the anomaly of recent major earthquakes in the last two decades. Feature displacement rates and deformation patterns are processed in several window times with 2560 experiment scenarios to produce the best detection using tree-based algorithms. Tree-based algorithms with a single estimator(decision tree), ensemble bagging(bagging, random forest and Extra Trees), and ensemble boosting(AdaBoost, gradient boosting, LGBM, and XGB) are applied in the study. The experiment test using realtime scenario GNSSdailydatareveals high F1-scores and accuracy for anomaly detection using slope windowing 365 and 730 days of 91-day displacement rates and then 7-day deformation pattern features in tree-based algorithms. The results show the potential for medium-term anomaly detection using GNSS data without the need for multiple vulnerability assessments.

关键词： Anomaly GNSS Displacement rates Deformation pattern Tree-based algorithm

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Multilevel optoelectronic hybrid memory based on N-doped Ge_(2)Sb_(2)Te_(5)film with low resistance drift and ultrafast speed

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Chinese Physics B 2023年第10期32卷 724-730页

作者：吴奔魏涛胡敬王瑞瑞刘倩倩程淼李宛飞凌云刘波 Suzhou Key Laboratory for Nanophotonic and Nanoelectronic Materials and Its Devices School of Materials Science and EngineeringSuzhou University of Science and TechnologySuzhou 215009China State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghai 200050China

Multilevel phase-change memory is an attractive technology to increase storage capacity and density owing to its high-speed,scalable and non-volatile ***,the contradiction between thermal stability and operation speed is one of key factors to restrain the development of phase-change ***,N-doped Ge_(2)Sb_(2)Te_(5)-based optoelectronic hybrid memory is proposed to simultaneously implement high thermal stability and ultrafast operation *** picosecond laser is adopted to write/erase information based on reversible phase transition characteristics whereas the resistance is detected to perform information *** show that when N content is 27.4 at.%,N-doped Ge_(2)Sb_(2)Te_(5)film possesses high ten-year data retention temperature of 175℃and low resistance drift coefficient of 0.00024 at 85℃,0.00170 at 120℃,and 0.00249 at 150℃,respectively,owing to the formation of Ge–N,Sb–N,and Te–N *** SET/RESET operation speeds of the film reach 520 ps/13 *** parallel,the reversible switching cycle of the corresponding device is realized with the resistance ratio of three orders of ***-level reversible resistance states induced by various crystallization degrees are also obtained together with low resistance drift ***,the N-doped Ge_(2)Sb_(2)Te_(5)thin film is a promising phase-change material for ultrafast multilevel optoelectronic hybrid storage.

关键词： multilevel optoelectronic hybrid memory N-doped Ge_(2)Sb_(2)Te_(5)thin film low resistance drift ultrafast speed

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Chunking virtual literacy instruction on TikTok for Z generation

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Library Hi Tech News 2023年第5期40卷 13-14页

作者： Anna, Nove E. Variant Ismail, Noraini Faculty of Vocational Studies Universitas Airlangga Surabaya Indonesia Faculty of Ocean Engineering Technology and Informatics Universiti Malaysia Terengganu Terengganu Malaysia

Purpose: This paper aims to explore the possibility of the use of TikTok for delivery virtual literacy instruction for Z generation to support their learning. Design/methodology/approach: A review of papers related to TikTok and library instruction is presented, and some libraries that use TikTok to deliver instruction are observed. Findings: Some libraries already use TikTok as a supplementary of social media to deliver instruction, due to the nature of TikTok is for short video up to 3 minutes, therefore it is good if librarian can design instruction in chunking basis, or bite size so users will easily engage. Originality/value: The use of TikTok for library instruction is still new, and this will bring value to libraries, especially academic library when they want start to use TikTok for their instruction. © 2023, Emerald Publishing Limited.

关键词： Chunk instruction Education Information literacy instruction TikTok Video platform

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Radiation Pattern Characteristics of 1x5 and 1x6 Planar Microstrip Antennas with Edge Weighting at A Frequency of 2.6 Ghz

Radiation Pattern Characteristics of 1x5 and 1x6 Planar Micr...

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2023 International Conference on Computer Science, Information technology and engineering, ICCoSITE 2023

作者： Vistalina Simanjuntak, Imelda Uli Yunita, Trasma Chairunnisa, Chairunnisa Kurniawan, Adit Bandung Institute of Technology School of Electrical Engineering and Informatics Bandung Indonesia Mercu Buana University Electrical Engineering Study Program Jakarta Indonesia

ISBN: (纸本)9798350320954

One of the methods used to increase channel capacity is the Non-Orthogonal Multiple Access (NOMA) methods. The increase in channel capacity in PD-NOMA multiple access means that the maximum power used by each user in each narrow band achieves increased power efficiency. Therefore, this research focuses on facilitating the increase in channel capacity by designing an antenna that produces a radiation pattern with many sharp main lobes and high gain. The multi-beam radiation pattern is obtained by using edge weighting. Therefore the antenna is designed with odd and even numbers represented by 1x5 and 1x6 antennas on the microstrip patch rectangular antenna at a frequency of 2.6 GHz. The effect of parasitic and non-parasite effects on the radiation pattern of a planar antenna with edge modeling is manageable in the main lobe, only in the side level lobe, which is not too significant. However, the number of main lobes on the 1x6 antenna has seven beam patterns, and the 1x5 antenna has five. The highest gain value obtains in the 1x6 design with a parasitic of 6.01 dB. This value meets the Gain requirements for 5G cellular systems. © 2023 IEEE.

关键词： Microstrip antennas

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An automated speech analysis system for the detection of cognitive decline in elderly

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International Journal of Speech technology 2023年第2期26卷 337-353页

作者： Loizou, Christos P. Pantzaris, Marios Faculty of Engineering & Technology Department of Electrical Engineering and Computer Engineering and Informatics Cyprus University of Technology 30 Arch. Kyprianos Str. Office 420 Limassol3036 Cyprus Cyprus Institute of Neurology and Genetics P. O. Box 23462 Nicosia1683 Cyprus

The goal of this study is to develop and test an automated integrated speech analysis system for detecting mild cognitive impairment (MCI) and dementia in spontaneous free speech. During the years 2010–2016, speech recordings (N = 2800) were obtained from 200 Greek Cypriots over the age of 65. These were divided into three groups (G1, G2, and G3) based on the results of their Mini-mental state examination (MMSE): G1:95 normal (NOR) individuals with an MMSE greater than 26;G2:65 MCI subjects with 20 ≤ MMSE ≤ 26;G3:40 dementia subjects with 0 ≤ MMSE © 2023, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.

关键词： Neurodegenerative diseases

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Genetic Programming and Coevolution to Play the Bomberman™ Video Game 26th

Genetic Programming and Coevolution to Play the Bomberman...

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26th International Conference on Applications of Evolutionary Computation, EvoApplications 2023, held as part of EvoStar 2023

作者： Gold, Robert Branquinho, Henrique Hemberg, Erik O’Reilly, Una-May García-Sánchez, Pablo ALFA MIT CSAIL Cambridge United States Centre for Informatics and Systems of the University of Coimbra Department of Informatics Engineering University of Coimbra Coimbra Portugal Department of Computer Architecture and Computer Technology University of Granada Granada Spain

ISBN: (纸本)9783031302282

The field of video games is of great interest to researchers in computational intelligence due to the complex, rich and dynamic nature they provide. We propose using Genetic Programming with coevolution and lexicographic fitness to generate an agent that plays the Bomberman™game. We investigate two sets of Genetic Programming building blocks: one contains conditions relative to movement, and the other does not. We aim to see whether the benefits of these movement-related conditions outweigh the negatives caused by increased search space size. We show that the benefits gained do not outweigh the increase in search space size. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.

关键词： Genetic programming

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Evaluation of Multiple Apache Spark Applications using Kubernetes as a Cluster manager on Google Cloud 4

Evaluation of Multiple Apache Spark Applications using Kuber...

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4th International Conference on Evolutionary Computing and Mobile Sustainable Networks, ICECMSN 2024

作者： Jayanthi, M. Rao, K. Ram Mohan Sukanya, Vuppala Dept of Computer Science and Informatics Mahatma Gandhi University Nalgonda India Dept of Information Technology Vasavi College of Engineering Hyderabad India Dept of CSE Hyderabad India

Big data processing frameworks demands for scalable and efficient cluster management. Apache Spark has emerged as prominent big data processing framework providing high-speed data processing and analytics capabilities for multiple applications. This paper explores the integration of Kubernetes as a cluster manager for Apache Spark applications leveraging its containerization capabilities to improve resource utilization and simplify deployment. In this paper the challenges of deploying spark applications on traditional cluster managers and showcase the advantages of adopting Kubernetes are analysed. The experimental evaluation demonstrates the benefits of Kubernetes as a cluster manager for Apache Spark framework. To execute the multiple Apache Spark applications on Kubernetes a homogenous cluster on Google Cloud is created by History bucket and service account. Finally multiple applications are executed on Google Kubernetes Engine. Output can be shown as the number of executor pods created with the performance metrics can be viewed. In conclusion, this paper compares the performance metrics such as job execution time and resource utilization with the different cluster. © 2025 The Authors. Published by Elsevier B.V.

关键词： Information management

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