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@@ -628,6 +628,7 @@ async def find_tree_nodes_by_conditional_ratio(
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node_belonging_dim_platform: Optional[dict[str, str]] = None
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dim_source = ""
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derived_dim_names: list[str] = []
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+ derived_items_len = len(derived_items or [])
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if log_id and str(log_id).strip():
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derived_dim_names = _load_derived_dim_tree_node_names(
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account_name, post_id, str(log_id).strip(), int(round)
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@@ -648,6 +649,11 @@ async def find_tree_nodes_by_conditional_ratio(
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else:
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dim_source = "未读到 derived_dims（无对应维度分析文件或为空），未收窄"
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+ # 当 derived_items 太多时，用 derived_dim_names 作为条件概率计算锚点：
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+ # 将每个 derived_dim_names 的 name 都映射为 (topic=name, source_node=name)。
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+ if derived_items_len > 15 and derived_dim_names:
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+ derived_list = [(n, n) for n in derived_dim_names]
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+
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# 1）账号人设树：按条件概率筛选；帖子选题点匹配仅走账号 match_data（match_derivation_to_post_points）
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items = get_nodes_by_conditional_ratio(
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account_name,
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