docs(comments): 注释中文化 · internal/runtime/memory(31 文件,纯替换)
- 只翻注释/文档字符串:820 增 / 820 删 严格 1:1;剥掉整行注释与行尾注释尾巴后, 逐文件与 HEAD 比对「代码部分差异 = 0」;裁决/design 编号计数逐项与 HEAD 一致 - 保留可执行 SQL 样例、SQLite 报错原文、pgvector/HNSW/ANN/BLOB 等技术词原文 - 复核:go build 绿 + memory/projectindex/vector 三包测试绿;gofmt 仅剩 2 个既有未格式化文件(改动前即如此,未顺手修)
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@@ -5,14 +5,14 @@ import (
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"time"
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)
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// decayFactor computes the decay multiplier for a single item: the stored
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// decay_weight scaled by a time-decay that halves every recencyHalfLife days
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// (design §2 衰减: 久未使用的记忆降权). A freshly touched item keeps its full
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// decay_weight; an item unused for N half-lives is scaled to
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// decay_weight * 0.5^N, so it ranks progressively lower unless it stays relevant.
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// decayFactor 计算单条条目的衰减乘数:已存的
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// decay_weight 乘以每 recencyHalfLife 天减半的时间衰减
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// (design §2 衰减: 久未使用的记忆降权)。刚被触碰的条目保留完整的
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// decay_weight;N 个半衰期未使用的条目被缩放到
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// decay_weight * 0.5^N,因此除非持续相关,其排名会逐步下降。
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//
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// age is measured from UpdatedAt; a future timestamp (clock skew) is clamped to
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// zero, so a just-recorded item is never scored above its base weight.
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// age 自 UpdatedAt 起算;未来时间戳(时钟偏移)被夹到
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// 零,因此刚记录的条目得分绝不会高于其基础权重。
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func (r *Retriever) decayFactor(it MemoryItem, now time.Time) float64 {
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age := now.Sub(it.UpdatedAt)
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if age < 0 {
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