Unverified50% confidenceTradeoffExact time
The cost of recurrent memory is limited state capacity, so distant details get diluted, which is why the local attention path is needed to supplement fine-grained information.
1
Sources
50%
Confidence
Long-term
Relevance
11/6/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedThe indexers of most sparse attention methods still need to score the full sequence themselves, retaining quadratic overhead, so that the saved attention computation is offset by the routing cost.77% similarUnverified在推理阶段内存带宽往往比纯算力更早成为瓶颈，注意力机制需在每步生成时读取全部KV缓存，上下文长度增大时内存读写开销呈平方级增长77% similarVerifiedCurrent large models do not have a true persistent memory mechanism, and as the number of conversation turns increases, the weight of early requirement descriptions in the attention mechanism gradually decays.76% similarVerifiedMemory retrieval should layer in time decay, importance weighting, and hybrid retrieval, rather than relying solely on vector similarity.76% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/1142010API
curl https://kongchang.com/api/v1/knowledge/claims/1142010MCP
get_claim(id=1142010)