PLDI is a premier forum for programming language research, broadly construed, including design, implementation, theory, applications, and performance. Her papers have received numerous long-term impact awards from the computer architecture and mobile computing communities. Fri 18 Jun 2021: Congratulations to Michael Sammler, Rodolphe Lepigre, Robbert Krebbers, Kayvan Memarian, Derek Dreyer, and Deepak Garg, this years recipients of the Distinguished Artifact Award. March 2022: A paper accepted by OSDI 2022. [NSDI] Unifying Timestamp with Transaction Ordering for MVCC with Decentralized Scalar Timestamp. Artifact evaluation has become a common practice in the systems community (OSDI, PLDI, PACT, MLSys), and recently, computer architecture conferences such as ASPLOS Register now Join the conference. The 15th USENIX Symposium on Operating Systems Design and Implementation ( Full paper submission: February 15th, 2021 Notification: April 30th, 2021 Proceedings version due: May 21st, 2021. As has been standard practice in OSDI and SOSP in recent years, we will allow authors to submit quick responses to PC reviews: they will be made available to the PC before the final online discussion and PC meeting. VLDB is a premier annual international forum for data management and database researchers, vendors, practitioners, application developers, and users. 65 papers accepted out of 348 submitted. Accepted and presented papers will appear in the conference proceedings published by the IEEE Computer Society Press. PLDI seeks outstanding research that extends and/or applies programming-language concepts to advance the field of computing. Hao Wu (University of Melbourne); Junhao Gan (University of Melbourne)*; Zhewei Wei (Renmin University of China); Rui Zhang (" University of Melbourne, Australia") Imminence Monitoring of Critical Events: A Representation Learning Approach. Full Paper Deadline: April 16, 2021 at 11:59 PM PDT. Accepted Papers. [03/2022] XRP and Roller accepted to OSDI'22. Please join us for the 30th USENIX Security Symposium, which will be held as a virtual event on August 1113, 2021. USENIX Security Symposium (USENIX Security), Aug 2021. [Paper] March, 2021. 4 papers (out of 31 in total) were accepted by 14th USENIX Symposium on Operating Systems Design and Implementation ( OSDI 2021 ). Congratulations to folks in IPADS and thank our collaborators. [Paper] March, 2021. 2022. Unifying the Global and Local Approaches: An Efficient Power Iteration with Forward Push. OSDI 2022 (conditionally accepted) A Separation Logic for Negative Dependence J. Bao, M. Gaboardi, J. Hsu, J. Tassarotti. Eurocrypt 2021 is one of the three flagship conferences organized by the International Association for Cryptologic Research (IACR). Updates [May 2022] Started [March 2021] NrOS paper is accepted to appear at OSDI '21. 4 papers (out of 31 in total) were accepted by 15th USENIX Symposium on Operating Systems Design and Implementation (OSDI 2021). April 2021: Grant on Verified Enclave Layers ($4,563,980) is funded by DARPA. The goal of artifact evaluation (AE) is to recognize the authors who have put in the effort to release usable software systems as well as to validate the results of the accepted papers. August 2021: VRM is accepted to appear at SOSP 2021. All submitted manuscripts will be peer-reviewed by at least three reviewers. This website collects resources and results around artifact evaluation for computer systems conferences. (April 2021) Our paper on rethinking Rowhammer mitigations is accepted to HotOS21. Mon 24 May 2021 Verifying the DaisyNFS concurrent and crash-safe file system with sequential reasoning T. Chajed, J. Tassarotti, M. Theng, M. F. Kaashoek, N. Zeldovich. July 2021: Awarded Amazon Research Awards (co-PI). They study all aspects of computer communications and networks: analysis, technical design, engineering, measurement and management. The goal of artifact evaluation (AE) is to recognize the authors who have put in the effort to release usable software systems as well as to validate the results of the accepted papers. Note to Accepted Authors: The final paper deadline for USENIX ATC '20 was Thursday, June 4, 2020, and has already passed. Our OSDI 2020 paper recognized by the PC chairs as one of the best storage-related papers of OSDI 2020 and invited for submission to ACM Transactions on Storage. The PC chairs for SOSP 2021 and OSDI 21 have collaboratively agreed on coordinated submission and review policies, and we will continue this collaboration moving forward. The following papers have been accepted to appear at the 28th ACM SIGOPS Symposium on Operating Systems Principles (SOSP), conditional on the approval of each paper's shepherd: Using Lightweight Formal Methods to Validate a Key-Value Storage Node in Amazon S3 by James Bornholt (Amazon Web Services & The University of Texas at Austin), Rajeev Joshi (Amazon OSDI. (Best Paper Award) Data-driven approach to transform traditional reliability activities 2021: OSDI, ASPLOS 22, HAOC 21 (co-chair), APSys; Accepted Papers. [04/2021] BPF for storage paper accepted to HotOS'21. [06/2021] Our paper on crash-consistency testing for HPC storage systems has been accepted by SC21. The initial OSDI items were generated from patient comments from several years Opening Remarks and Best Paper Awards Mirror 1 Tue 26, 08:00 - 08:30 GMT-7. Congratulations to Xinwei, Wook-Hee, and Ajay! Camera-Ready Deadline: September 10, 2021 at 11:59 PM PDT. 16th USENIX Symposium on Operating Systems Design and Implementation. SIGCOMM is ACM's professional forum for discussing communications and computer networks. Jay Lepreau Best Paper Award Locality-Preserving Oblivious RAM Paper 2021 Best Paper Runner Up at ACM CCS Peiyao Sheng, Gerui Wang, Kartik Nayak, Sreeram Kannan, Pramod Viswanath. (Distinguished Paper Award), April, 2021. The 27th ACM Symposium on Operating Systems Principles seeks to present exciting, innovative research related to the design, implementation, analysis, evaluation, and deployment of computer systems software. Artifact Submission: August 20, 2021: Camera Ready due: September 27, 2021: Workshop Proposals Due: April 30, 2021 (2:59 PM US/Pacific) Call For Workshops Accepted papers will be allowed 14 pages in the proceedings, plus references. Benefits and Goals Any other changes you make to your submission WILL NOT be reflected on the program page or in the proceedings. Authors are invited to prepare early and submit original papers to IEEE CLOUD conference, symposia, and workshops at www.easychair.org. Mingcong Han, Hanze Zhang, Rong Chen, and Haibo Chen. [03/2022] Our paper on storage harvesting with programmable SSDs has been accepted by OSDI'22. [May 2020] Started internship at VMware Research Group, hosted by Gerd Zellweger. This is the first OSDI in an odd year as OSDI moves to a yearly cadence. Our Paper Ekko: A Large-Scale Deep Learning Recommender System with Low-Latency Model Update is accepted by USENIX Symposium on Operating Systems Design and Implementation (OSDI) 2022. SIGCOMM members include scientists, engineers, educators and students. Artifact decisions announced: Tuesday, May 18, 2021; OSDI final papers deadline: Tuesday, May 25, 2021; Note: For an artifact to be considered, at least one contact author for the submission must be reachable via email and respond to questions in a timely manner during the kick-the-tires period. Congratulations to Xinwei! SoCC21 Paper Accepted. Recent News. For general conference information, see https://www.usenix.org/conference/osdi21 . March 2022: A paper accepted by OSDI 2022. November 2021: A paper accepted by CGO 2022. Welcome to the 15th USENIX Symposium on Operating Systems Design and Implementation (OSDI '21) submissions site. Strengthened Fault Tolerance in Byzantine Fault Tolerant Replication Please only edit your presentation to upload your final videos and slide deck. Welcome to the home page of the 43rd ACM SIGPLAN Conference on Programming Language Design and Implementation (PLDI 2022)! Accepted regular papers of up to 10 pages and brief announcements of up to 3 pages in two-column ACM proceedings format will be included in the conference proceedings. Shortstack: Scalable & Fault-tolerant Noise-Injection (To Appear) Midhul Vuppalapati*, Kushal Babel*, Anurag Khandelwal, Rachit Agarwal USENIX OSDI 2022; Understanding Host Network Stack Overheads Qizhe Cai, Shubham Chaudhary, Midhul Vuppalapati, Jaehyun Hwang, Rachit Agarwal However, due to global uncertainties, travel restrictions, and other potential difficulties associated with COVID19, SIGMOD21 is transitioning to an online format. July 2021: DistAI won the Jay Lepreau Best Paper Award at OSDI 2021. List of accepted research track papers. Papers. The International Symposium on Computer Architecture is the premier forum for new ideas and experimental results in computer architecture. Note that members of the program committee are free to not read this material when reviewing the paper. Congratulations to Jianping, Jongouk, Xinwei, and Ajay! June 14, 2021: Inducted into the ISCA Hall of Fame. Eurocrypt 2021 is the 40th Annual International Conference on the Theory and Applications of Cryptographic Techniques and will take place in Zagreb, Croatia on October 17-21 2021. Register for MICRO 2021 on Whova Today's Program. A medium grant funded (with Miryung Kim and Khanh Nguyen) to support our effort of reinventing the kernel's data plane for remote-memory applications. Mar 18, 2022 HyperPose and RLzoo are both accepted to the Open-source Software Competition in ACM Multimedia 2021. Systems Research Artifacts. OSDI 2022. November 6, 2021: One paper accepted at CGO 2022. The 27th ACM Symposium on Operating Systems Principles Deerhurst Resort, Huntsville, Ontario, Canada October 27-30, 2019 Call for Papers. Location: Savannah, GA, USA. Testing Configuration Changes in Context to Prevent Production Failures Xudong Sun 0013, Runxiang Cheng, Jianyan Chen, Elaine Ang, Owolabi Legunsen, Tianyin Xu. 70 papers accepted out of 398 submitted. Location & Registration PLDI 2022 will be held in-person [OSDI] Microsecond-scale Preemption for Concurrent GPU-accelerated DNN Inferences. (May 2021) Marina Minkin won a Facebook Fellowship. The addition of an OSDI submission and review cycle into the calendar year will likely affect reviewer load and submission volume for all systems research venues. CARLSBAD, CA, USA. Marius is a system for training graph neural networks and embeddings for large-scale graphs on a single machine. Congrats Tanvir! Although the number of submissions is lower than the past, its likely only due to the late announcement; being in my first OSDI PC, I think the quality of the submitted and accepted papers remains as high as ever. My paper has accepted to appear in the EuroSys2020; I will have a talk at the Hotstorage'19; The Paper about GCMA Accepted to TC; This alert has been successfully added and will be sent to: You will be notified whenever a record that you have chosen has been cited. Note to Accepted Authors: The final paper deadline for OSDI '20 was Thursday, October 15, 2020, and has already passed. Of the 26 submitted artifacts: 26 artifacts received the Artifacts Available badge (100%). Paper "Zeph: Cryptographic Enforcement of End-to-End Data Privacy" accepted for presentation at USENIX OSDI 2021 IntelFacultyAward 2019 JayLepreauBestPaperAward,OSDI 2018 IntelFacultyAward 2018 MicrosoftAzureCloudComputingAward 2017 OutstandingReviewerAward,WWW 2017 The author response (for papers in the second phase only) will be accessible to PCs, SPCs, and ACs. Congratulations to Yifu and others! In late 2019 some members of the systems research community came together to present a proposal that SOSP, the ACM Symposium on Operating Systems Principles, and OSDI, the USENIX Symposium on Operating Systems Design and Implementation, be held annually rather than biennially. The title of the paper is DAOS: Data Access-aware Operating System. Venue: The Westin Savannah Harbor Golf Resort & Spa & Convention Center. Thanks VMware and NSF! About. The process may takea few minutes but once it finishes a file will be downloaded on your browser soplease do not close the new tab. By clicking download,a new tab will open to start the export process. Overall, the OSDI PC accepted 31 out of 165 submissions. COSMOSS (COmputer Systems, Memory, and OS Security) Lab We enjoy building practical systems with focuses on performance, scalability, security, and reliability. 1 Resort Drive, Savannah, GA 31421. Oort Accepted to Appear at OSDI2021. Submission Guidelines. Congrats Chang! Congrats Kevin! Comprehensive and Efficient Workload Compression [Download Paper] Shaleen Deep (University of Wisconsin-Madison), Anja Gruenheid (Google Inc.), Paraschos Koutris (University of Wisconsin-Madison), Jeff Naughton (Google), Stratis Viglas (University of Edinburgh) This work studies the problem of constructing a representative Mirror 2 Tue 26, 17:00 - 17:30 GMT-7. 2021. January 14, 2022: One paper accepted at MLSys 2022. Deepak Narayanan, Keshav Santhanam, Fiodar Kazhamiaka, Amar Phanishayee, Congratulations to Juncheng! See the PLDI Track page for full details. Congratulations to Xinwei, Wook-Hee, and Ajay! osdi 2020: 735-751 [doi] 14th USENIX Symposium on Operating Systems Design and Implementation, OSDI 2020, Virtual Event, November 4-6, 2020 USENIX Association, 2020. PMFuzz: Test Case Generation for Persistent Memory Programs. Awarded an NSF SMALL grant on distributed system fault injection. [08/2021] Our paper on redesigning data centers for renewable energy has been accepted by HotNets'21. Welcome to the SOSP 2019 Website. Congratulations to Yongwoo and others! HotNets provides a venue for discussing innovative ideas and for debating future research agendas in networking. "Segcache", a memory-efficient and high-throughput in-memory cache, accepted for publication at NSDI 2021. The 15th USENIX Symposium on Operating Systems Design and Implementation (OSDI '21) will take place as a virtual event on July 1416, 2021. 26 Artifact Available; 23 Artifact Functional; 20 Results Reproduced; Distinguished Artifact Award: Oort: Efficient Federated Learning via Guided Participant Selection by Fan Lai, Xiangfeng Zhu, Harsha V. Madhyastha, and Mosharaf Chowdhury (University of Michigan) SOSP. The Ocular Surface Disease Index (OSDI) was significantly higher than the baseline after the reading test. A scientific paper consists of a constellation of artifacts that extend beyond the document itself: software, hardware, evaluation data and documentation, raw survey results, mechanized proofs, models, test suites, benchmarks, and so on. Results OSDI21 accepted 31 papers and 26 papers participated in the AE, a significant increase in the participate ratio: 84%, compared to OSDI20 (70%) and SOSP19 (61%). Congratulations to Juncheng! The biennial ACM Symposium on Operating Systems Principles is the world's premier forum for researchers, developers, programmers, and teachers of computer systems technology. Sat, Aug 7, 2021 3 min read researches review. See the list of awards for more information! Dejan Kosti (KTH Royal Institute of Technology) Mirror 1 Tue 26, 08:30 - 09:30 GMT-7. Accepted papers may be shepherded through an edito-rial review process by a member of the program com-mittee. ACM SIGMOD 2021; Linear-time zero-knowledge SNARKs for R1CS Jonathan Lee, Srinath Setty, Justin Thaler, and Riad Wahby Cryptology ePrint 2021/030, 2021; Byzantine ordered consensus without Byzantine oligarchy Yunhao Zhang, Srinath Setty, Qi Chen, Lidong Zhou, and Lorenzo Alvisi USENIX OSDI 2020. See you next year in Qubec City for Middleware 2022! [12/2021] Won CAIT + Amazon grant on securing edge ML models. Welcome to the 2021 USENIX Annual Technical Conference (ATC '21) submissions site! Delos builds upon my prior research on shared log systems, including CORFU (NSDI 2012; productionized at VMware as CorfuDB), Tango (SOSP 2013), and the FuzzyLog (OSDI 2018). ACM Multimedia is the March 13, 2021 Mosharaf 4 Comments. This website collects resources and results around artifact evaluation for computer systems conferences. [01/2022] Published a whitepaper on carbon-free datacenter software. SC. USENIX Security brings together researchers, practitioners, system administrators, system programmers, and others to share and explore the latest advances in the security and privacy of computer systems and networks. In some cases, the quality of these artifacts is as important as that of the document itself. The OSDI is assessed on a scale of 0 to 100, with higher scores representing greater disability. The index demonstrates sensitivity and specificity in distinguishing between normal subjects and patients with dry eye disease. Banff, Alberta, Canada. September 29, 2021: Two papers accepted at NeurIPS 2021. 22nd ACM/IFIP International Conference. The 27th ACM Symposium on Operating Systems Principles seeks to present exciting, innovative research related to the design, implementation, analysis, evaluation, and deployment of computer systems software. Dec 14, 2021 (Dec 7, 2021) OSDI 2020. Please only edit your presentation to upload your final videos and slide deck. Workshop/Tutorial Proposal Deadline: June 10, 2021. OSDIOperating Systems Design and Implementation USENIX . Welcome to the 2021 USENIX Annual Technical Conference (ATC '21) submissions site! Congrats Marina! August 2021: A paper accepted by SOSP 2021. About. About. Conference Information. Middleware 2021 is over, thank you everyone to participating. 6 th 10 th December 2021. Congratulations to folks in IPADS and thank our collaborators. Im glad to inform that my 1st first-author paper, tprof: Performance profiling via structural aggregation and automated analysis of distributed systems traces, has been accepted by ACM Symposium on Cloud Computing 2021 (SoCC21)! My paper introducing DAMON and related works for making Linux a more data access-aware operating system has been accepted to be presented by the HPDC'22. We scale graph neural network training ( preprint) through: Online, July 2021. Welcome to the home page of the 43rd ACM SIGPLAN Conference on Programming Language Design and Implementation (PLDI 2022)! Oorts working title was Kuiper. Nov 4, 2020 - Nov 6, 2020. Welcome to the home of the 2021 ACM SIGMOD/PODS Conference, which was supposed to be held in Xi'an, Shaanxi, China, on June 20 - June 25, 2021. For general conference information, see https://sosp2021.mpi-sws.org/. [doi] September 2, 2021 | Lexiang. Papers selected by the program committee will be subject to revision and approval by a program committee member acting as a shepherd. Last year, 70% of accepted OSDI papers participated Systems Research Artifacts. DMon is accepted to appear at OSDI21. Accepted. PLDI is the premier forum in the field of programming languages and programming systems research, covering the areas of design, implementation, theory, applications, and performance. Accepted papers. Congratulations to Xinwei! Federated Learning (FL) is an emerging sub-field of machine learning that focuses on in-situ processing of data wherever it is generated. OSDI, like most conferences and journals, requires Location & Registration PLDI 2022 will be held in-person 31 papers accepted out of 165 submitted. For workloads with inserts, XSTORE still provides up to 3.5 (from 2.7) throughput speedup, achieving 53M reqs/s. July 2021: A paper accepted by MICRO 2021. Tanvir Ahmed Khan, Ian Neal, Gilles Pokam, Barzan Mozafari, Baris Kasikci . Location: Savannah, GA, USA. OSDI 2021 . If you submit a paper to either of those venues, you may not also submit it to OSDI 21. Prior or concurrent workshop publication does not preclude publishing a related paper in OSDI. Paper "Zeph: Cryptographic Enforcement of End-to-End Data Privacy" accepted for presentation at USENIX OSDI 2021 What to Submit NSDI \'21 is double-blind, meaning that authors should make a good faith effort to anonymize papers. Prior workshop publication does not preclude publishing a related paper in OSDI. Welcome to the 28th ACM Symposium on Operating Systems Principles (SOSP 2021) submissions site. Marius ( OSDI '21 Paper) is designed to mitigate/reduce data movement overheads using: Pipelined training and IO. For more about Delos, see this blog and talk from 2018; this blog and talk from 2021; or our OSDI 2020 paper and talk. Congratulations to folks in IPADS and thank our collaborators. The authors of papers submitted to IJCAI-ECAI 2022 are expected to contribute a limited number of reviews, if asked to. I will have a talk at the Linux Kernel Summit 2021; OSDI 2021 papers summary; 1 Resort Drive, Savannah, GA 31421. The learned cache can also reduces client-side memory usage and further provides an efficient memory-performance tradeoff, e.g., saving 99% memory at the cost of 20% peak throughput. Partition caching and buffer-aware data orderings. Date: November 2, 2016 - November 4, 2016. July 14, 2021: Paper accepted at MICRO 2021. RESIN is accepted to OSDI '22. About. Tuesday, October 26, 2021. Note that the operational track papers have different rules as described above. Our vision paper on User-defined Cloud (UDC) accepted to HotOS'21. November 2021: A paper accepted by CGO 2022. [04/2021] Won a NSF/VMware sustainable data center grant. The conference specifically seeks particularly forward-looking and novel submissions. Online-only Conference. OSDI OSDI 2021. USENIX 1975 Jul 11, 2022 - Jul 13, 2022. The title of the paper is DAOS: Data Access-aware Operating System. There are two special tracks (AI for Good, and AI, the Arts and Creativity) with separate calls for papers. Thanks CAIT and Amazon! For conference information, see: 64 papers accepted out of 341 submitted. Xingda Wei, Rong Chen, Haibo Chen, Zhaoguo My paper introducing DAMON and related works for making Linux a more data access-aware operating system has been accepted to be presented by the HPDC'22. March 19, 2022: One paper accepted at OSDI 2022. In addition, she has earned the 2019 SIGARCH Alan D. Berenbaum Distinguished Service Award, the 2018 IEEE Computer Society Technical Achievement Award, and the 2010 Princeton University Graduate Mentoring Award, among Bland-Altman analysis for clinical agreement between the web-based C-OSDI and paper-based C-OSDI final scores revealed a clinical difference (bias) of -0.25 units. ISCA 2021. (May 2021) I will serve on the ASPLOS22 and PLDI22 PCs. Session 1: Byzantine fault-tolerance. In 2021, the 48 th edition of ISCA will be held in Valencia, Spain. This is the first OSDI in an odd year as OSDI moves to a yearly cadence. Symposium on Operating Systems Design and Implementation (OSDI). Monday, August 31 Friday, September 4, 2020. Accepted papers. DMon: Efficient Detection and Correction of Data Locality Problems using Selective Profiling. Novel system designs, thorough empirical work, well-motivated theoretical results, and new OSDI 2021 papers summary. Toggle menu. Welcome. MIDDLEWARE 2021. SC. Publications Conference papers. Toggle menu. (Mar 2021). Congratulations to Yongwoo and others! The 20th ACM Workshop on Hot Topics in Networks (HotNets 2021) will bring together researchers in computer networks and systems to engage in a lively debate on the theory and practice of computer networking. With the wide deployment of AI/ML in our daily lives, the need for data privacy is receiving more attention in recent years. Paper Accepted in SIGMOD 2022 Chenghong Wang, Johes Bater, Kartik Nayak, Ashwin Machanavajjhala. The schirmer I test without topical anesthesia was performed using filter paper strips (Liaoning Meizilin Pharmaceutical Co., Ltd., Shenyang, China) after completing all other examinations. Accepted Papers. 21:30612. SOSP 2019. Thanks NSF! The Ocular Surface Disease Index (OSDI), developed by the Outcomes Research Group at Allergan Inc (Irvine, Calif), 8 is a 12-item questionnaire designed to provide a rapid assessment of the symptoms of ocular irritation consistent with dry eye disease and their impact on vision-related functioning. Aug. 2021 [ paper][ slides] (HotNets) Zero-CPU Collection with Direct Telemetry Access. Date: November 2, 2016 - November 4, 2016. [Resume - July, 2021] [Google Scholar] Contact ankitb@cs.utah.edu 50 Central Campus Dr #3163 Salt Lake City, Utah - 84112. We advocate a cloud-in-your-pocket approach for future cloud development. Results Submissions: 26 (84% of accepted papers). The 28th IEEE International Symposium on High-Performance Computer Architecture (HPCA-28) introduces for the first time in HPCA an artifact evaluation process for accepted papers. SOSP. This post is for recording some notes from a few OSDI'21 papers that I got fun. I will have a talk at the Linux Kernel Summit 2021; OSDI 2021 papers summary; The final program will make no distinction between papers accepted from this track and papers accepted from the regular track. Fri 4 Jun 2021: Congratulations to the authors of this year's PLDI Distinguished Papers! Aug. 2020: A paper accepted by IEEE (OSDI) Sundial: Fault-tolerant Clock-synchronization for Datacenters. In particular, we are interested in the interactions between layers and revisit the design of computer systems in a holistic manner encompassing hardware, operating system, and applications. Camera-ready submission (revised accepted papers): 2 April 2021 ; Main conference program: 27-29 April 2021; All deadline times are 23:59 hrs UTC. When uploading your OSDI 2021 reviews for your submission to SOSP, you can optionally append a note about how you addressed the reviews and comments. April 26, 2021: Paper accepted at USENIX Early Registration Deadline: October 17, 2021 at 11:59 PM PDT. Evaluation Results:. Author Notification: July 14, 2021. Dec. 2021. July 20, 2021: Author Response due: July 23, 2021 (2:59 PM US/Pacific) Acceptance Notification: August 9, 2021: Artifact intent registration: August 13, 2021: See sysartifacts for details. Marius. June 2021: Selected as The Top 100 Yale Alumni In Technology Of 2021. November 2021: A journal accepted by ACM TIOT. Oort: Efficient Federated Learning via Guided Participant Selection ; AAAI AAAI 2021. USENIX Symposium on Operating Systems Design and Implementation.