rstar2-agent

paper ,  hallucination ,  vision-language-action-model ,  rl-with-verifiable-rewards ,  ai-ml-papers-of-the-week ,  llm-embeddings ,  rstar2-agent ,  grpo-roc ,  ugmm-nn ,  gaussian-mixture-model ,  hierarchy-aware-credit-assignment ,  openvision-2 ,  backprompting ,  depth-breadth-synergy-in-rlvr ,  flowvla ,  visual-chain-of-thought ,  episodic-memory ,  video-episodic-memory-representation