dba57642
 tangwang
bayes调参计划
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target_path: coarse_rank.fusion
baseline:
es_bias: 10.0
es_exponent: 0.05
text_bias: 0.1
text_exponent: 0.35
text_translation_weight: 1.0
knn_text_weight: 1.0
knn_image_weight: 2.0
knn_tie_breaker: 0.3
knn_bias: 0.2
knn_exponent: 5.6
knn_text_bias: 0.2
knn_text_exponent: 0.0
knn_image_bias: 0.2
knn_image_exponent: 0.0
parameters:
es_bias: {min: 0.3, max: 80.0, scale: log, round: 4}
es_exponent: {min: 0.0, max: 0.4, scale: linear, round: 4}
text_bias: {min: 0.001, max: 4.0, scale: log, round: 4}
text_exponent: {min: 0.02, max: 1.6, scale: linear, round: 4}
text_translation_weight: {min: 0.1, max: 2.5, scale: linear, round: 4}
knn_text_weight: {min: 0.1, max: 4.0, scale: linear, round: 4}
knn_image_weight: {min: 0.1, max: 6.0, scale: linear, round: 4}
knn_tie_breaker: {min: 0.0, max: 1.0, scale: linear, round: 4}
knn_bias: {min: 0.001, max: 4.0, scale: log, round: 4}
knn_exponent: {min: 0.05, max: 12.0, scale: log, round: 4}
knn_text_bias: {min: 0.001, max: 4.0, scale: log, round: 4}
knn_text_exponent: {min: 0.0, max: 6.0, scale: linear, round: 4}
knn_image_bias: {min: 0.001, max: 4.0, scale: log, round: 4}
knn_image_exponent: {min: 0.0, max: 6.0, scale: linear, round: 4}
seed_experiments:
- name: seed_knn_soften
description: 压低 knn 全局指数，先验证当前 5.6 是否过猛
params:
text_exponent: 0.42
knn_image_weight: 1.2
knn_bias: 0.35
knn_exponent: 1.4
- name: seed_text_guard
description: 提升 lexical 稳定性，抑制翻译与 image knn 过度主导
params:
text_exponent: 0.62
text_translation_weight: 0.75
knn_image_weight: 1.0
knn_tie_breaker: 0.15
knn_exponent: 2.2
- name: seed_semantic_balanced
description: 让 text/image knn 都参与，但降低 image 偏置和总指数
params:
text_exponent: 0.32
knn_text_weight: 1.4
knn_image_weight: 1.8
knn_tie_breaker: 0.45
knn_bias: 0.18
knn_exponent: 3.0
- name: seed_component_exp
description: 打开 knn_text/image 子项指数，观察全局 knn_exponent 是否可下放
params:
knn_bias: 0.15
knn_exponent: 1.6
knn_text_exponent: 0.8
knn_image_exponent: 0.4
- name: seed_es_relax
description: 增强 es 因子的区分度，验证 coarse 是否过分压平 lexical 分数
params:
es_bias: 3.0
es_exponent: 0.11
text_exponent: 0.48
knn_exponent: 2.6
- name: seed_image_heavy
description: 刻意放大 image knn 做对照，看哪些 query 会明显受损
params:
text_exponent: 0.22
knn_text_weight: 0.9
knn_image_weight: 3.4
knn_tie_breaker: 0.55
knn_bias: 0.12
knn_exponent: 3.8
- name: seed_high_knn_global
description: 沿着 baseline 继续上探更强 knn 全局指数，验证 5.6 是否仍偏保守
params:
text_exponent: 0.28
knn_text_weight: 1.1
knn_image_weight: 2.6
knn_tie_breaker: 0.4
knn_bias: 0.12
knn_exponent: 7.2
- name: seed_text_knn_split
description: 提高 text knn，压低 image knn，同时打开 text/image 子项指数
params:
text_exponent: 0.38
knn_text_weight: 2.0
knn_image_weight: 0.8
knn_tie_breaker: 0.2
knn_bias: 0.08
knn_exponent: 4.8
knn_text_exponent: 1.1
knn_image_exponent: 0.15
- name: seed_image_split
description: 保持较高 image 权重，但把非线性拆到 image 子项而不是全局 knn
params:
text_exponent: 0.26
knn_text_weight: 0.9
knn_image_weight: 3.0
knn_tie_breaker: 0.35
knn_bias: 0.08
knn_exponent: 3.4
knn_text_exponent: 0.2
knn_image_exponent: 1.0
- name: seed_es_text_sharpen
description: 提升 es 与 lexical 区分度，测试 coarse 是否需要更强文本排序稳定性
params:
es_bias: 2.0
es_exponent: 0.16
text_bias: 0.03
text_exponent: 0.78
text_translation_weight: 0.9
knn_bias: 0.1
knn_exponent: 5.0
- name: seed_translation_discount
description: 明显削弱 translation 命中，验证抽象 query 是否过度依赖翻译通路
params:
text_exponent: 0.44
text_translation_weight: 0.45
knn_text_weight: 1.2
knn_image_weight: 1.7
knn_tie_breaker: 0.25
knn_exponent: 5.4
- name: seed_near_baseline_jitter
description: 贴近 baseline 做小扰动，优先寻找可行增益而不是只测极端方向
params:
es_bias: 8.0
es_exponent: 0.06
text_bias: 0.06
text_exponent: 0.31
text_translation_weight: 1.1
knn_text_weight: 1.1
knn_image_weight: 2.2
knn_tie_breaker: 0.34
knn_bias: 0.16
knn_exponent: 5.9
optimizer:
init_random: 8
candidate_pool_size: 512
explore_probability: 0.28
local_jitter_probability: 0.42
elite_fraction: 0.35
min_normalized_distance: 0.12
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