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HippoRAG
by OSU NLP Group (Ohio State University)
System Card
OrganizationOSU NLP Group (Ohio State University)
Released2024-05
Architecturegraph-rag / Hippocampal-inspired KG with Personalized PageRank
DetailsUses an LLM as neocortex to transform a corpus into a schemaless knowledge graph serving as an artificial hippocampal index. Given a query, HippoRAG identifies key concepts and runs Personalized PageRank on the KG to integrate information across passages, achieving single-step multi-hop retrieval.
Parameters—
Domainrag-retrievalknowledge-graphlifelong-learning
Open SourceYes
PaperView Paper
CodeRepository
hippocampusknowledge-graphpagerankmulti-hopneurips-2024
Capability Profile
Benchmark Scores
6 of 14 benchmarksLong-Context Retrieval0/5
RULER
no dataNIAH
no dataLooGLE
no dataLongBench
no data∞Bench
no dataMulti-Turn Recall1/2
MemoryBank
no dataCross-Session Memory1/1
Multi-Hop QA3/3
Agent Task Memory0/1
AgentBench-Mem
no dataPersonalization0/1
PerLTQA
no dataFactuality / Grounding1/1
Sources:arXiv:2405.14831 Table 4 — F1 with IRCoT+HippoRAG (ColBERTv2); EM 45.7. HippoRAG alone: F1 55.0HippoRAG paper (arXiv:2405.14831); evaluated on LongMemEval: Benchmarking Chat Assistants on Long-Term Interactive Memory (Salesforce AI Research, 2410)HippoRAG paper (arXiv:2405.14831); evaluated on MultiHop-RAG: Benchmarking Retrieval-Augmented Generation for Multi-Hop Queries (HKUST, 2401)HippoRAG paper (arXiv:2405.14831); evaluated on RAGAS: Automated Evaluation of Retrieval-Augmented Generation (Exploding Gradients, 2309)HippoRAG paper (arXiv:2405.14831); evaluated on BABILong: Testing the Limits of LLMs with Long-Context Reasoning-in-a-Haystack (AIRI, 2406)HippoRAG paper (arXiv:2405.14831); evaluated on LoCoMo: Long-Term Conversational Memory Benchmark (Snap Research, 2402)