https://github.com/icemap/icemap

Homepage
https://github.com/icemap/icemap

Last synced: 4 months ago
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• Host: GitHub
• URL: https://github.com/icemap/icemap
• Owner: Icemap
• License: apache-2.0
• Created: 2022-06-09T15:32:36.000Z (about 4 years ago)
• Default Branch: main
• Last Pushed: 2026-01-23T12:30:49.000Z (5 months ago)
• Last Synced: 2026-01-24T04:48:26.416Z (5 months ago)
• Size: 10.7 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          


  
Hi there, I'm Qizhi Wang (Icemap) 

  


    Senior Software Engineer @ PingCAP (TiDB) | AI & Database Kernel Researcher

  

  

  


    

      

    

    

      

    

    

      

    

    

      

    

  



### 🚀 About Me

I bridge the gap between **Distributed Systems** and **Neuro-Symbolic AI**. My goal is to mitigate hallucinations in LLMs by integrating **Knowledge Graphs** with distributed vector storage, moving from heuristic RAG to verifiable, structure-aware retrieval.

* 🔭 **Currently**: Architecting AI-native data structures at **TiDB**.

* 🏛️ **Community**: Serving as **Chair** for the *International Conference on Intelligence (ICI 2026)*.

* 🧠 **Research Interest**: Graph-Augmented RAG, Vector Search Kernels (HNSW/IVF), Distributed Consensus (Raft/Paxos).

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### 📊 GitHub Stats



  

  



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### 📝 Selected Publications & Manuscripts (2025-2026)

> *Focus: GraphRAG, Distributed Consensus, and Database Internals.*

* **SPRIG: Democratizing GraphRAG** - Linear, CPU-Only Graph Retrieval (Submitted to *KAIS*, 2025).

* **BALLAST: Bandit-Assisted Learning** - Latency-Aware Stable Timeouts in Raft (Submitted to *IEEE TPDS*, 2025).

* **TiCard: Deployable EXPLAIN-only Residual Learning** - Cardinality Estimation (Submitted to *JDSA*, 2025).

* **RIFT: Replicating Ideological Fractures via Transformers** (Submitted to *JASSS*, 2025).

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### 🛠️ Engineering Highlights

#### **PingCAP (TiDB)** | *Senior Software Engineer (AI & Ecosystem)*

* **Hybrid Query Optimization**: Formulated cost models for Hybrid Search (Vector + SQL) within the TiDB kernel.

* **Ecosystem**: Ported Hibernate ORM to TiDB and aligned client SDKs with the Percolator transaction model.

#### **Tencent Music Entertainment (TME)** | *Former Senior Engineer*

* **High Concurrency**: Designed the *TME Live* platform handling **10M peak QPS** using Bloom Filters/HyperLogLog for massive dataset distinct counting.

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### 💻 Tech Stack

| Domain | Technologies |

| :--- | :--- |

| **Languages** | ![Go](https://img.shields.io/badge/-Golang-00ADD8?logo=go&logoColor=white) ![Java](https://img.shields.io/badge/-Java-007396?logo=java&logoColor=white) ![Python](https://img.shields.io/badge/-Python-00599C?logo=python&logoColor=white) |

| **Systems** | ![TiDB](https://img.shields.io/badge/-TiDB-444?logo=tidb) ![MySQL](https://img.shields.io/badge/-MySQL-4479A1?logo=mysql&logoColor=white) ![Raft](https://img.shields.io/badge/-Raft_Consensus-E535AB) ![Redis](https://img.shields.io/badge/-Redis-DC382D?logo=redis&logoColor=white) |

| **AI & Data** | ![HNSW](https://img.shields.io/badge/-HNSW_Indexing-success) ![GraphRAG](https://img.shields.io/badge/-GraphRAG-blueviolet) ![Vector DB](https://img.shields.io/badge/-Vector_Database-ff69b4) |






  


    Let's connect! I'm open to discussing Neuro-Symbolic AI, Database Kernels, or just geek out on Golang.