=Paper= {{Paper |id=Vol-4283/paper431 |storemode=property |title=Team DUAN at PAN 2026: Fine-Tuning Qwen3.5-2B for Reasoning Trajectory Source and Safety Detection |pdfUrl=https://ceur-ws.org/Vol-4283/paper431.pdf |volume=Vol-4283 |authors=Duan Xianbing,Han Zhongyuan,Liang Zhankeng,Liu Chang }} ==Team DUAN at PAN 2026: Fine-Tuning Qwen3.5-2B for Reasoning Trajectory Source and Safety Detection== https://ceur-ws.org/Vol-4283/paper431.pdf
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