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Welcome to LAMDA-BBO Group 👋

We are the LAMDA-BBO (Black-Box Optimization) group, led by Professor Chao Qian. Our group is a part of LAMDA Group @ Nanjing University, which is led by Professor Zhi-Hua Zhou.

Our research focuses on advancing the theories, algorithms, and applications of black-box optimization. Our key areas of interest include, but are not limited to:

  • Theoretical analysis of evolutionary algorithms
  • Designing safe evolutionary algorithms, i.e., evolutionary algorithms with provable approximation guarantee
  • Designing efficient black-box optimization algorithms, e.g., Bayesian optimization, evolutionary strategies, evolutionary gradient optimization, and cooperative coevolution
  • Learning to optimize, e.g., learning to configure, generate and select black-box optimzition algorithms, offline optimization, and neural combinatorial optimization
  • Evolutionary learning, particularly evolutionary reinforcement learning, deep learning, and ensemble learning
  • Applications to solve complex real-world optimziation problems in industry (e.g., electronic design automation) and science (e.g., geoscience)

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  1. Open3DBench Open3DBench Public

    Official implementation of paper "Open3DBench: Open-Source Benchmark for 3D-IC Backend Implementation and PPA Evaluation".

    Verilog 79 6

  2. BBOPlace-Bench BBOPlace-Bench Public

    Official implementation of paper "BBOPlace-Bench: Benchmarking Black-Box Optimization for Chip Placement".

    Python 25 5

  3. offline-moo offline-moo Public

    Official implementation of ICML'24 paper "Offline Multi-Objective Optimization".

    Python 24 6

  4. universal-offline-bbo universal-offline-bbo Public

    Forked from trxcc/universal-offline-bbo

    Official implementation of ICML'25 paper "Towards Universal Offline Black-Box Optimization via Learning Language Model Embeddings"

    Python 11 1

  5. Efficient-TDP Efficient-TDP Public

    Official implementation of DATE'25 paper "Timing-Driven Global Placement by Efficient Critical Path Extraction".

    C++ 62 7

  6. MCTS-VS MCTS-VS Public

    Official implementation of NeurIPS'22 paper "Monte Carlo Tree Search based Variable Selection for High-Dimensional Bayesian Optimization"

    Python 42 5

Repositories

Showing 10 of 31 repositories
  • DivHF Public

    Official repository of paper "Diversity from Human Feedback".

    lamda-bbo/DivHF’s past year of commit activity
    Python 0 MIT 0 0 0 Updated Jan 29, 2026
  • QDRT Public

    Official repository of paper "Quality-Diversity Red-Teaming: Automated Generation of High-Quality and Diverse Attackers for Large Language Models".

    lamda-bbo/QDRT’s past year of commit activity
    Python 0 MIT 0 0 0 Updated Jan 23, 2026
  • BBOPlace-Bench Public

    Official implementation of paper "BBOPlace-Bench: Benchmarking Black-Box Optimization for Chip Placement".

    lamda-bbo/BBOPlace-Bench’s past year of commit activity
    Python 25 5 1 0 Updated Dec 19, 2025
  • Re2MaP Public

    Official implementation of Re2MaP, a robust macro placer based on recursive prototyping and packing tree-based relocating.

    lamda-bbo/Re2MaP’s past year of commit activity
    C++ 4 0 1 0 Updated Nov 10, 2025
  • Seq-MADAC Public

    Official implementation of NeurIPS 2025 paper Sequential Multi-Agent Dynamic Algorithm Configuration

    lamda-bbo/Seq-MADAC’s past year of commit activity
    Python 0 Apache-2.0 0 0 0 Updated Oct 23, 2025
  • macro-regulator Public

    Official implementation of NeurIPS'24 paper "Reinforcement Learning Policy as Macro Regulator Rather than Macro Placer".

    lamda-bbo/macro-regulator’s past year of commit activity
    C++ 19 5 4 0 Updated Aug 13, 2025
  • neural-solver-selection Public

    Official implementation of ICML25 paper "Neural Solver Selection for Combinatorial Optimization".

    lamda-bbo/neural-solver-selection’s past year of commit activity
    Python 6 MIT 0 0 0 Updated Jun 18, 2025
  • Efficient-TDP Public

    Official implementation of DATE'25 paper "Timing-Driven Global Placement by Efficient Critical Path Extraction".

    lamda-bbo/Efficient-TDP’s past year of commit activity
    C++ 62 7 0 2 Updated Jun 14, 2025
  • Open3DBench Public

    Official implementation of paper "Open3DBench: Open-Source Benchmark for 3D-IC Backend Implementation and PPA Evaluation".

    lamda-bbo/Open3DBench’s past year of commit activity
    Verilog 79 6 1 0 Updated Jun 11, 2025
  • offline-moo Public

    Official implementation of ICML'24 paper "Offline Multi-Objective Optimization".

    lamda-bbo/offline-moo’s past year of commit activity
    Python 24 6 2 0 Updated Jun 11, 2025

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