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Linlu Qiu

14 accepted papers

2025

On the Same Wavelength? Evaluating Pragmatic Reasoning in Language Models across Broad Concepts

EMNLP 2025

Language use is shaped by pragmatics—i.e., reasoning about communicative goals and norms in context. As language models (LMs) are increasingly used as conversational agents, it becomes ever more important to understand their pragmatic reasoning abilities. We propose an evaluation framework derived f

Cited by 0SourcePDFScholar
2025

The Surprising Effectiveness of Test-Time Training for Few-Shot Learning

ICML 2025poster

Language models (LMs) have shown impressive performance on tasks within their training distribution, but often struggle with structurally novel tasks even when given a small number of in-context task examples. We investigate the effectiveness of test-time training (TTT)—temporarily updating model pa…

2024

Bias Amplification in Language Model Evolution: An Iterated Learning Perspective

NeurIPS 2024poster

With the widespread adoption of Large Language Models (LLMs), the prevalence of iterative interactions among these models is anticipated to increase. Notably, recent advancements in multi-round on-policy self-improving methods allow LLMs to generate new examples for training subsequent models. At th…

2024

Learning to Reason via Program Generation, Emulation, and Search

NeurIPS 2024poster

Program synthesis with language models (LMs) has unlocked a large set of reasoning abilities; code-tuned LMs have proven adept at generating programs that solve a wide variety of algorithmic symbolic manipulation tasks (e.g. word concatenation). However, not all reasoning tasks are easily expressibl…

2024

Lookback Lens: Detecting and Mitigating Contextual Hallucinations in Large Language Models Using Only Attention Maps

EMNLP 2024main

When asked to summarize articles or answer questions given a passage, large language models (LLMs) can hallucinate details and respond with unsubstantiated answers that are inaccurate with respect to the input context. This paper describes a simple approach for detecting such **contextual hallucinat…

2024

Phenomenal Yet Puzzling: Testing Inductive Reasoning Capabilities of Language Models with Hypothesis Refinement

ICLR 2024oral

The ability to derive underlying principles from a handful of observations and then generalize to novel situations---known as inductive reasoning---is central to human intelligence. Prior work suggests that language models (LMs) often fall short on inductive reasoning, despite achieving impressive s…

2024

Reasoning or Reciting? Exploring the Capabilities and Limitations of Language Models Through Counterfactual Tasks

NAACL 2024long

The impressive performance of recent language models across a wide range of tasks suggests that they possess a degree of abstract reasoning skills. Are these skills general and transferable, or specialized to specific tasks seen during pretraining? To disentangle these effects, we propose an evaluat…

2022

Evaluating the Impact of Model Scale for Compositional Generalization in Semantic Parsing

EMNLP 2022main

Despite their strong performance on many tasks, pre-trained language models have been shown to struggle on out-of-distribution compositional generalization. Meanwhile, recent work has shown considerable improvements on many NLP tasks from model scaling. Can scaling up model size also improve composi…

Cited by 56SourcePDFScholar
2022

Generate-and-Retrieve: Use Your Predictions to Improve Retrieval for Semantic Parsing

COLING 2022main

A common recent approach to semantic parsing augments sequence-to-sequence models by retrieving and appending a set of training samples, called exemplars. The effectiveness of this recipe is limited by the ability to retrieve informative exemplars that help produce the correct parse, which is especi…

Cited by 17SourcePDFScholar
2022

Improving Compositional Generalization with Latent Structure and Data Augmentation

NAACL 2022long

Generic unstructured neural networks have been shown to struggle on out-of-distribution compositional generalization. Compositional data augmentation via example recombination has transferred some prior knowledge about compositionality to such black-box neural models for several semantic parsing tas…

2021

Quasi-Dense Similarity Learning for Multiple Object Tracking

CVPR 2021poster

Similarity learning has been recognized as a crucial step for object tracking. However, existing multiple object tracking methods only use sparse ground truth matching as the training objective, while ignoring the majority of the informative regions on the images. In this paper, we present Quasi-Den…

Cited by 492PDFcodeScholar
2021

Systematic Generalization on gSCAN: What is Nearly Solved and What is Next?

EMNLP 2021main

We analyze the grounded SCAN (gSCAN) benchmark, which was recently proposed to study systematic generalization for grounded language understanding. First, we study which aspects of the original benchmark can be solved by commonly used methods in multi-modal research. We find that a general-purpose T…