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Yiwen Zhang

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Fast Cloud Storage for AI Jobs via Grouped I/O API with Transparent Read/Write...FAST '262026-02-24
AITURBO is a cloud storage system that cuts AI checkpoint IO by using the grouped I/O API to collect per-tensor metadata, derive an optimized write plan…
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Vulcan: Automatic Query Planning for Live ML Analytics21st USENIX Symposium on Networked Systems Design and Implementation (NSDI '24)2024-04-16
Vulcan automatically generates full query plans for live ML analytics by building pipelines, deciding filter order, and jointly optimizing operator placement…
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Justitia: Software Multi-Tenancy in Hardware Kernel-Bypass Networks19th USENIX Symposium on Networked Systems Design and Implementation (NSDI '22)2022-04-04
Justitia inserts a software layer before hardware kernel-bypass NICs, splitting large sends into chunks and issuing them under a token bucket so the NIC’s…
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MatrixKV: Reducing Write Stalls and Write Amplification in LSM-tree Based KV StoresUSENIX ATC '202020-07-15
MatrixKV implements a matrix container in NVM (Optane DC PMM) inside RocksDB, adds column compaction and cross-row hint search, and flattens levels to cut…
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