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Memformer

by UC Santa Barbara / Amazon (Wu, Lan, Liu, et al.)

System Card

OrganizationUC Santa Barbara / Amazon (Wu, Lan, Liu, et al.)
Released2020-10
Architectureexternal-memory-network / External dynamic memory + memory replay BPTT
DetailsUses an external dynamic memory module to encode/retrieve past information in linear-time constant-space. Introduces Memory Replay Back-Propagation (MRBP) for efficient long-range BPTT.
Parameters—
Domainlong-contextagent-memory
Open SourceYes
PaperView Paper
CodeRepository
aacl-findings-2022external-memorydynamiclinear-time

Capability Profile

Benchmark Scores

6 of 14 benchmarks
Data Transparency:6 estimated
Long-Context Retrieval
2/5
RULER
no data
NIAH
no data
LooGLE
no data
LongBench
603pEstimated
∞Bench
78.750pEstimated
Multi-Turn Recall
1/2
LoCoMo
65.717pEstimated
MemoryBank
no data
Cross-Session Memory
0/1
LongMemEval
no data
Multi-Hop QA
2/3
BABILong
74.949pEstimated
MultiHop-RAG
no data
HotpotQA
6839pEstimated
Agent Task Memory
1/1
AgentBench-Mem
65.815pEstimated
Personalization
0/1
PerLTQA
no data
Factuality / Grounding
0/1
RAGAS
no data
Sources:Arena estimate — derived from capability profile, not independently verified