From 6c24ad796630c9a86f0075a66ede78be27d69c07 Mon Sep 17 00:00:00 2001
From: buua436 <66937541+buua436@users.noreply.github.com>
Date: Fri, 19 Sep 2025 16:02:10 +0800
Subject: [PATCH] fix: correct rerank_model condition logic (#10174)

### What problem does this PR solve?

fix the rerank_model condition logic by correcting the np.isclose check.

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)
---
 rag/llm/rerank_model.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rag/llm/rerank_model.py b/rag/llm/rerank_model.py
index a69efa7eb..f4ca7fb01 100644
--- a/rag/llm/rerank_model.py
+++ b/rag/llm/rerank_model.py
@@ -365,7 +365,7 @@ class OpenAI_APIRerank(Base):
         max_rank = np.max(rank)
 
         # Avoid division by zero if all ranks are identical
-        if np.isclose(min_rank, max_rank, atol=1e-3):
+        if not np.isclose(min_rank, max_rank, atol=1e-3):
             rank = (rank - min_rank) / (max_rank - min_rank)
         else:
             rank = np.zeros_like(rank)