10 Challenges of the OMBM Problem Real-time taxi-calling services usually adopt nearest neighbor(NN strategy to address task assignment issues. Once a task appears, it should be assigned immediately. If we know everything in advance, the offline oPt is shown 是1 容 青五北区 The offline 定棒树北 cost 大 m 出 小肃社区 友社 中A⚫ Real-time taxi-calling services usually adopt ‘nearest neighbor (NN)’ strategy to address task assignment issues. ⚫ Once a task appears, it should be assigned immediately. ⚫ If we know everything in advance, the offline OPT is shown. Challenges of the OMBM Problem The offline cost 10