KG-RAG + ToT + multi-agent LLMs for evidence-grounded QA with Neo4j and fine-tuning; reproducible medical case study & evaluation.

Track how your brand ranks in ChatGPT responses — scan queries, score visibility, and benchmark competitors.

25 源并行搜索，RRF 融合 + LLM 评分 + 交叉验证。知乎/雪球/V2EX/Twitter/YouTube/B站/GitHub/HN — 一次搜索，结构化简报。零付费 API，零配置。

Exploration of retrieval methods on the HotpotQA corpus, combining dense retrieval and feature-based reranking. Achieved a mean nDCG@10 of 0.9416 using LambdaRank with features such as cross-encoder score, LLM score, BM25 score, and token-based statistics—surpassing dense retriever + cross-encoder baselines.

Latest pricing and feature overview for large language models from major AI companies

Cross-lingual (DE ↔ EN) hybrid document search over PDF/DOCX. Combines BM25, multilingual sentence embeddings (FAISS / Elasticsearch), proximity scoring, and optional DeepSeek (Ollama) for query expansion, re-ranking, and explanations. FastAPI backend + zero-dependency web UI.