dataset: train: data_file/ConvAI2/train_self_original_no_cands.txt valid: data_file/ConvAI2/valid_self_original_no_cands.txt max_context_turns: -1 max_token_length: 512 model: score_activation: 'softplus' training: mode: normal only_longest: False task_type: generate_response ensemble: false tau_gold: 1.0 tau_sim: 1.0