source_doc: "Master_Thesis.pdf" rag_mode: "sentence window retrieval" llm_openai_model: "gpt-4o-mini" embed_model: "BAAI/bge-small-en-v1.5" sentence_window_size: 4 similarity_top_k: 6 rerank_model: "cross-encoder/ms-marco-MiniLM-L-2-v2" rerank_top_n: 2