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Hi, I'm Junxian Ma, a CS Engineering undergraduate in Department of CS, Tsinghua University. My recent work centers on AI Infra and Pretrain Algorithms.
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FusedIndexTopK
FusedIndexTopK PublicHigh-Performance fused Indexer and exact Top-K kernels for the DeepSeek V3.2 sparse-attention architecture, built with DeepGEMM-style cuda design, device-side exact repair, and GPU benchmarks.
Python 6
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Quicksviewer2-LLaMaFactory
Quicksviewer2-LLaMaFactory PublicTraining Quicksviewer2 with CubingModule on LLaMaFactory
Python 2
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OpenCoworkAI/open-cowork
OpenCoworkAI/open-cowork PublicOpen-source AI agent desktop app for Windows & macOS. One-click install Claude Code, MCP tools, and Skills — with sandbox isolation, multi-model support, and Feishu/Slack integration.
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