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    nikashen/README.md

    nika · Algorithm & ML Engineering

    I build evidence-first machine-learning systems: reproducible evaluation, explicit data boundaries, deployable interfaces, and honest negative results.

    专注算法与 ML Engineering,覆盖 LLM/RAG、检索排序、多模态、图学习、视觉异常检测、时间序列与语音音频。每个公开项目都提供可运行演示、自动化测试和冻结发布证据;不把 toy demo 包装成真实业务效果。

    Selected portfolio

    ProjectAlgorithm / engineering focusPublic evidence
    EchoForge-ASRChinese streaming ASR, PCM WebSocket protocol, VAD, transcript revision, robustness evidenceDemo · Release
    ChronosGuard-TSLeakage-aware forecasting, conformal intervals, anomaly detection, online replayDemo · Release
    GraphShield-FraudTemporal graph fraud detection, GraphSAGE, investigation workflowDemo · Release
    MOSAIC-RetrievalImage/video-text retrieval, CLIP, FAISS, cold-start encodingDemo · Release
    TRACE-RecRetrieval, learning-to-rank, multi-interest recommendation, experimentationDemo · Release
    AlignScope-CSSFT/DPO/LoRA alignment evaluation with evidence-first reportingDemo · Release
    FinSight-RAGFinancial RAG, retrieval evaluation, citation and evidence boundariesDemo · Release
    ForgeSight-ADIndustrial visual anomaly detection and pixel localizationDemo · Release
    NexusMind-InferenceGuarded FastAPI inference gateway for LLM/RAG workloadsDemo · Release

    How I work

    • Time-aware or source-aware splits before model comparison; no Test-driven model selection.
    • Reproducible reports, machine-checkable artifacts, CI, packaged releases, and responsive demos.
    • Explicit distinction between synthetic UI fixtures, public benchmark evidence, and production claims.
    • Negative results and failed verification gates remain visible instead of being rewritten as wins.

    Open to algorithm and ML engineering opportunities.

    Pinned Loading

    1. ChronosGuard-TSChronosGuard-TSPublic

      Leakage-aware time-series evaluation, conformal anomaly detection, and online replay

      Python 1

    2. GraphShield-FraudGraphShield-FraudPublic

      Leakage-safe temporal graph fraud detection and investigation workbench

      Python 1

    3. MOSAIC-RetrievalMOSAIC-RetrievalPublic

      Audited multimodal image/video-text retrieval and cold-start content encoder

      Python 1

    4. TRACE-RecTRACE-RecPublic

      Evidence-first retrieval, ranking and experimentation workbench for recommendation, search and ads.

      Python 1

    5. FinSight-RAGFinSight-RAGPublic

      Evidence-first financial research RAG and retrieval evaluation workbench.

      Python 1

    6. AlignScope-CSAlignScope-CSPublic

      Evidence-first SFT and preference-alignment evaluation for customer-service language models.

      Python 1