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Kar Yan Tam

5 accepted papers

2024

Beyond Surface Similarity: Detecting Subtle Semantic Shifts in Financial Narratives

NAACL 2024findings

In this paper, we introduce the Financial-STS task, a financial domain-specific NLP task designed to measure the nuanced semantic similarity between pairs of financial narratives. These narratives originate from the financial statements of the same company but correspond to different periods, such a…

2024

Exploring the Relationship between In-Context Learning and Instruction Tuning

EMNLP 2024finding

In-Context Learning (ICL) and Instruction Tuning (IT) are two primary paradigms of adopting Large Language Models (LLMs) to downstream applications. However, they are significantly different. In ICL, a set of demonstrations is provided at the inference time, but the LLM’s parameters are not updated.…

2022

BARLE: Background-Aware Representation Learning for Background Shift Out-of-Distribution Detection

EMNLP 2022finding

Machine learning models often suffer from a performance drop when they are applied to out-of-distribution (OOD) samples, i.e., those drawn far away from the training data distribution. Existing OOD detection work mostly focuses on identifying semantic-shift OOD samples, e.g., instances from unseen n…

2021

Learning Numeracy: A Simple Yet Effective Number Embedding Approach Using Knowledge Graph

EMNLP 2021finding

Numeracy plays a key role in natural language understanding. However, existing NLP approaches, not only traditional word2vec approach or contextualized transformer-based language models, fail to learn numeracy. As the result, the performance of these models is limited when they are applied to number…