RatioSketch: Towards More Accurate Frequency Estimation in Data Streams via a Lightweight Neural Network. - Mengbo Wang 004; Zhuochen Fan; Dayu Wang; Guorui Xie; Qing Li 006; Zeyu Luan; Yong Jiang 001; Tong Yang 003; Mingwei Xu 001 (AAAI, 2026)