Yujia Li
Author directory2026
Beyond Text Following: Repairable Arbitration Reversals in Audio-Language Models
Yichen Gao | Yiqun Zhang | Zijing Wang | Yujia Li | Heng Guo | Xi Wu | Xiaocui Yang | Shi Feng | Yifei Zhang | Daling Wang
Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing
Yichen Gao | Yiqun Zhang | Zijing Wang | Yujia Li | Heng Guo | Xi Wu | Xiaocui Yang | Shi Feng | Yifei Zhang | Daling Wang
Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing
Audio-language models (ALMs) often follow text that conflicts with audio, even when the audio evidence is clear. This behavior leaves an important question unresolved: is the audio-supported answer unavailable, or is it represented but overridden by the conflicting text? We test this question with a same-audio counterfactual that keeps the audio fixed, removes only the conflicting text, and measures the resulting shift in model preference. Across five ALMs and four conflict tasks, 64.1% of conflict samples exhibit a sign flip: the same-audio branch prefers the audio-supported answer, whereas the joint branch prefers the text-supported answer. This pattern suggests that the relevant audio evidence is encoded but loses during arbitration. Activation patching further localizes the reversal to answer-position computation, and patching effects closely track output candidate-score differences (Spearman ρ=0.93). Based on this diagnostic, we propose Gated Audio Counterfactual Logit Correction (GACL), a training-free decoding rule that interpolates between joint and same-audio scores. Under a strict 5 pp faithfulness-drop budget, GACL improves nAUC by 17.8 points over the best contrastive baseline and transfers without retuning to vision-text arbitration (up to +40.5 pp).
2021
WikiGraphs: A Wikipedia Text - Knowledge Graph Paired Dataset
Luyu Wang | Yujia Li | Ozlem Aslan | Oriol Vinyals
Proceedings of the Fifteenth Workshop on Graph-Based Methods for Natural Language Processing (TextGraphs-15)
Luyu Wang | Yujia Li | Ozlem Aslan | Oriol Vinyals
Proceedings of the Fifteenth Workshop on Graph-Based Methods for Natural Language Processing (TextGraphs-15)
We present a new dataset of Wikipedia articles each paired with a knowledge graph, to facilitate the research in conditional text generation, graph generation and graph representation learning. Existing graph-text paired datasets typically contain small graphs and short text (1 or few sentences), thus limiting the capabilities of the models that can be learned on the data. Our new dataset WikiGraphs is collected by pairing each Wikipedia article from the established WikiText-103 benchmark (Merity et al., 2016) with a subgraph from the Freebase knowledge graph (Bollacker et al., 2008). This makes it easy to benchmark against other state-of-the-art text generative models that are capable of generating long paragraphs of coherent text. Both the graphs and the text data are of significantly larger scale compared to prior graph-text paired datasets. We present baseline graph neural network and transformer model results on our dataset for 3 tasks: graph -> text generation, graph -> text retrieval and text -> graph retrieval. We show that better conditioning on the graph provides gains in generation and retrieval quality but there is still large room for improvement.