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Junfeng Liu

3 accepted papers

2026

WebRouter: Query-specific Router via Variational Information Bottleneck for Cost-sensitive Web Agent

ICASSP 2026poster

LLM-brained web agents offer powerful capabilities for web automation but face a critical cost-performance trade-off. The challenge is amplified by web agents' inherently complex prompts that include goals, action histories, and environmental states, leading to degraded LLM ensemble performance. To…

Cited by 0SourcePDFScholar
2024

A Coarse-to-Fine Prototype Learning Approach for Multi-Label Few-Shot Intent Detection

EMNLP 2024finding

Few-shot intent detection is a challenging task, particularly in scenarios involving multiple labels and diverse domains. This paper presents a novel prototype learning approach that combines the label synset augmentation and the coarse-to-fine prototype distillation for multi-label few-shot intent…

2022

Contextualized Scene Imagination for Generative Commonsense Reasoning

ICLR 2022poster

Humans use natural language to compose common concepts from their environment into plausible, day-to-day scene descriptions. However, such generative commonsense reasoning (GCSR) skills are lacking in state-of-the-art text generation methods. Descriptive sentences about arbitrary concepts generated…