Reinforced Efficient Reasoning via Semantically Diverse Exploration. - Ziqi Zhao; Zhaochun Ren; Jiahong Zou; Liu Yang 025; Zhiwei Xu 005; Xuri Ge; Zhumin Chen; Xinyu Ma 001; Daiting Shi; Shuaiqiang Wang; Dawei Yin 001; Xin Xin 003 (ACL (1), 2026)