ABOUT / MOYUAN

墨鵷

在模型、系统与安全之间
做一些真正能跑起来的东西

也写下一些与技术有关
又不完全关于技术的东西

银发猫耳角色,身着浅蓝色衣裙,身旁有雪花与白猫
moyuanprogramming or coffee

01 / NOW

正在做

正在做
大模型推理 · AI 安全 · Agent
最近在想
长上下文到底值不值得那么贵
最近在折腾
这个网站

02 / NAME

名字里的方向

墨落
风起
羽翼向远

yuān
非梧桐不止
非练实不食
非醴泉不饮

取意于鵷雏,择善而栖

03 / METHOD

让现实参与判断

先把问题拆开
再让现实有机会说不

能测量的就测量
能留下证据的就留下证据

模型跑通不是结束
系统真正工作才算

04 / ELSEWHERE

一些旁枝

05 / SELECTED WORK

把想法做出来

所有项目

06 / JOURNEY

一路走来

北京大学大数据实验室 / Data & AI 安全课题组

AI 安全实习生(远程) 2026.04 - 至今

负责 JoySafeter 测评执行链路工程化,开展 JoySafety 框架源码审计。

  • 串联源码解包与隔离沙箱、MCP/Skills 动态工具调用、Worker 异步执行、证据归档与结构化报告生成。
  • 重构 Run 状态迁移与稳定 ID,修复重复消费并发竞态,实现任务恢复与失败重试幂等性。
  • 完成 12 个 MCP 服务、79 个安全工具加载验收(0 失败),覆盖 53 项后端与 21 项前端测试。
  • 分析 JoySafety 双向审核、Prompt Injection、多轮会话、红线知识库代答、可配置 DAG 路由与流式异步检测。

深圳市大数据研究院(香港中文大学(深圳))

大模型 AI Infra 实习生 2026.06 - 2026.09

在昇腾 910C 上优化长上下文推理、分布式部署与解码性能。

  • 为 Qwen3-235B-A22B W8A8 落地 HSP score-once 在线压缩。
  • LongBench v2 全量 387 条 >32K 样本中,平均 Prompt Token 降低 87.04%,TTFT p50 降低 83.89%,准确率提升 1.03 pp。
  • 基于 vLLM-Ascend 与 CANN/ATB 8.5.1,完成 TP8 + EP8、A3 Flash Decoding 优化,持续解码吞吐由 4.71 提升至 27.99 tok/s(约 5.9 倍)。
  • 优化 TAOmem embedding、KV 缓存与 lazy decode,使 BEAVER prepare p50 降低 31.26%,加入 batch token cap 等 OOM 防护。

绿盟科技集团股份有限公司广州分公司

安全实习生 2025.03 - 2025.04

参与南方电网及高校的安全设备交付、漏洞扫描与基线核查。

  • 现场部署 WAF、IDS 等安全设备,进行策略调试与高可用验收。
  • 执行客户现场定期漏洞扫描与基线核查,结合业务场景输出风险整改分析报告。

广州立源电子科技有限公司

信创技术助理(产品侧) 2024.06 - 2024.09

参与立源云在统信 UOS、麒麟 Kylin 环境中的兼容测试与部署适配。

  • 负责国产操作系统环境下的兼容性测试与部署适配,沉淀信创技术方案文档。

07 / SKILLS

技能不是收藏

AI Systems

推理

从长上下文压缩到推理性能,关心代价,也关心答案有没有变。

PyTorch · vLLM-Ascend · W8A8 · HSP

59篇文章
6个项目
4段实习
还有很多要学

08 / RECOGNITION

一些认可

  • 挑战杯人工智能领域专项赛 · 全国一等奖
  • 长城杯信息安全大赛 · 全国三等奖
  • 全国大学生数学建模竞赛广东省一等奖
全部荣誉与资格

4 项已登记软件著作权

另有 2 项发明专利申请,已受理 / 公开

09 / CONTACT

可以来找我

如果你也在做
LLM Systems · AI Safety · Agent

或者一些奇怪但有意思的东西
可以来找我

MOYUAN记录 · 探索 · 构建

ABOUT / MOYUAN

MOYUAN

I build at the intersection of
AI systems, security, and software.

And every now and then,
I write about the world beyond the code.

A silver-haired character in blue, with snowflakes and a white cat
moyuanprogramming or coffee

01 / NOW

Right now

Working on
LLM inference, AI safety, and agent systems
Thinking about
how much context is actually worth paying for
Tinkering with
this website, as usual

02 / NAME

A name, a direction

Ink leaves a trace.
The rest is a matter
of direction.

yuān
非梧桐不止
非练实不食
非醴泉不饮

Shaped after the Yuanchu, a bird that chooses where it rests.

03 / METHOD

Give reality a say

Break the problem down.
Give reality a chance to prove you wrong.

Measure what can be measured.
Keep the evidence.

A model running is not the finish line.
The system has to work.

04 / ELSEWHERE

Elsewhere

05 / SELECTED WORK

Ideas, made real

All projects

06 / JOURNEY

The journey so far

Peking University Big Data Laboratory / Data & AI Security Group

AI Security Intern (remote) April 2026 - present

Engineered JoySafeter evaluation workflows and audited the JoySafety framework.

  • Connected source unpacking, isolated sandboxes, MCP/Skills tools, asynchronous workers, evidence archives, and structured reports.
  • Reworked run-state transitions and stable IDs to resolve duplicate-consumption races and support idempotent recovery and retries.
  • Validated 12 MCP services and 79 security tools with no loading failures, covering 53 backend and 21 frontend tests.
  • Audited JoySafety moderation, prompt-injection defenses, multi-turn handling, knowledge-base responses, DAG routing, and asynchronous streaming detection.

Shenzhen Research Institute of Big Data / CUHK-Shenzhen

LLM AI Infrastructure Intern June - September 2026

Optimized long-context inference, distributed deployment, and decoding on Ascend 910C.

  • Implemented HSP score-once online compression for Qwen3-235B-A22B W8A8.
  • Across all 387 LongBench v2 samples over 32K, reduced mean prompt tokens by 87.04% and TTFT p50 by 83.89%, improving accuracy by 1.03 percentage points.
  • Optimized TP8 + EP8 and A3 Flash Decoding with vLLM-Ascend and CANN/ATB 8.5.1, increasing sustained decoding from 4.71 to 27.99 tokens/s (about 5.9 times).
  • Optimized TAOmem embeddings, KV caching, and lazy decoding, reducing BEAVER prepare p50 by 31.26%, with batch-token caps to guard against OOM.

NSFOCUS, Guangzhou

Security Intern March - April 2025

Supported security deployments, vulnerability scans, and baseline checks for China Southern Power Grid and universities.

  • Deployed WAF and IDS systems on site, tuned policies, and supported high-availability acceptance.
  • Performed periodic vulnerability scans and baseline checks, producing remediation reports grounded in customer business scenarios.

Guangzhou Liyuan Electronics

Technical Product Assistant June - September 2024

Tested Liyuan Cloud compatibility and deployment on UOS and Kylin.

  • Tested compatibility, adapted deployments, and documented technical solutions for domestic operating systems.

07 / SKILLS

Skills aren't collectibles

AI Systems

Inference

Long-context compression and inference performance, with answer quality kept in view.

PyTorch · vLLM-Ascend · W8A8 · HSP

59articles
6projects
4internships
things left to learn

08 / RECOGNITION

A few milestones

  • Challenge CupAI special competition · National first prize
  • Great Wall CupInformation security · National third prize
  • Mathematical ModelingNational competition · Guangdong first prize
All honors and qualifications

4 registered software copyrights

Also 2 invention patent applications, accepted or published

09 / CONTACT

Say hi

If you're building around
AI systems, safety, or agents

or just working on something
weird enough to be interesting.

MOYUANRECORD · EXPLORE · BUILD