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Hybrid Cache for Attention Mechanisms
A hybrid cache is a memory management strategy that combines two types of memory to efficiently handle long sequences. As illustrated in the diagram, it consists of a 'Local Memory' and a 'Compressed Memory'. The Local Memory (e.g., size 4x2) stores a fixed number of the most recent key-value pairs in their original, uncompressed form. As new data arrives, the oldest key-value pairs are evicted from the Local Memory. These evicted pairs are then passed through a compression function and stored in the Compressed Memory (e.g., size 2x2). This two-level approach allows a model to maintain high-fidelity information about the recent past while retaining a summarized, space-efficient representation of the more distant past.
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Ch.2 Generative Models - Foundations of Large Language Models
Foundations of Large Language Models
Foundations of Large Language Models Course
Computing Sciences
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Fixed-Size Window Memory as a Form of Local Attention
Summary Vectors for Memory Compression in Attention
General Recurrent Formula for Memory Update
Comparison of Memory Storage in Window-based and Moving Average Caches
Hybrid Cache for Attention Mechanisms
An attention mechanism is designed to use a memory component that has a constant, fixed size, regardless of how long the input sequence becomes. What is the primary computational consequence of this design choice as the input sequence length increases significantly?
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Learn After
Compressive Transformer Memory Architecture
Hybrid Cache Update Process
A memory management strategy for processing long sequences involves two components: a 'local memory' that stores a fixed number of the most recent data points in their original form, and a 'compressed memory' that stores older data points in a summarized form after they are moved from the local memory. Which statement best analyzes the fundamental trade-off this two-level system is designed to address?
A new key-value pair is generated for a long sequence being processed by a model that uses a two-level hybrid memory system. Arrange the following events in the correct chronological order.
Hybrid Cache State Analysis
Consequences of Lossy Compression in a Hybrid Cache