Papers by Tyler Chang
Characterizing and Measuring Linguistic Dataset Drift (2023.acl-long)
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Tyler Chang, Kishaloy Halder, Neha Anna John, Yogarshi Vyas, Yassine Benajiba, Miguel Ballesteros, Dan Roth
| Challenge: | Existing metrics for dataset drift have not considered specific dimensions of linguistic drift that affect model performance. |
| Approach: | They propose three dimensions of linguistic dataset drift: vocabulary, structural, and semantic drift. |
| Outcome: | The proposed metrics are more effective than previous metrics at predicting out-of-domain model accuracies compared to popular fine-tuned embedding distances . |
Drivel-ology: Challenging LLMs with Interpreting Nonsense with Depth (2025.emnlp-main)
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| Challenge: | Despite excelling at many natural language processing tasks, large language models fail to grasp the layered semantics of Drivelological text. |
| Approach: | They construct a benchmark dataset of over 1,200+ carefully curated and diverse examples across English, Mandarin, Spanish, French, Japanese, and Korean to examine their Drivelological characteristics. |
| Outcome: | The proposed models lack conceptual understanding and lack conceptual and semantic accuracy. |
Structural Priming Demonstrates Abstract Grammatical Representations in Multilingual Language Models (2023.emnlp-main)
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| Challenge: | Abstract grammatical knowledge is key to linguistic generalization in humans . strong evidence for grammatikal abstraction in humans comes from structural priming . |
| Approach: | They compare human models of crosslingual structural priming to human models . they find evidence for abstract monolingual and crosslingual grammatical representations . |
| Outcome: | The results show that grammatical representations in multilingual models are similar to humans . the strongest evidence for grammatikal abstraction in humans comes from structural priming . |
When Is Multilinguality a Curse? Language Modeling for 250 High- and Low-Resource Languages (2024.emnlp-main)
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| Challenge: | Multilingual language models are widely used to extend NLP systems to low-resource languages. |
| Approach: | They pre-train over 10,000 monolingual and multilingual language models for over 250 languages including multiple language families that are under-studied in NLP. |
| Outcome: | The results show that adding multilingual data improves low-resource language modeling performance, similar to increasing low-source dataset sizes by up to 33%. |
Convolutions and Self-Attention: Re-interpreting Relative Positions in Pre-trained Language Models (2021.acl-long)
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| Challenge: | Recent work has shown that convolutions have been successful in natural language learning. |
| Approach: | They propose a convolutional approach to construct relative position embeddings in self-attention layers and propose 'compact attention' they propose multiple ways to integrate convolutions into Transformer self- attention. |
| Outcome: | The proposed composite attention improves performance on multiple downstream tasks, replacing absolute position embeddings, and is more expressive than convolutions in NLP. |
The Geometry of Multilingual Language Model Representations (2022.emnlp-main)
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| Challenge: | XLM-R models encode language-sensitive information in each language, allowing them to extract features for downstream tasks and cross-lingual transfer learning. |
| Approach: | They evaluate how multilingual language models maintain a shared multilingual representation space while still encoding language-sensitive information in each language. |
| Outcome: | The proposed model can extract features for downstream tasks and cross-lingual transfer learning. |