Yekyung Kim

Hi! I am a second year PhD student at University of Maryland, CLIP Lab advised by Mohit Iyyer with a research focus on natural language processing. I initially started my PhD at UMass NLP and later transferred to UMD along with my advisor.

Before starting PhD, I worked at Hyundai Motors Group and LG Electronics as a research engineer. I was fortunate to be selected as a specialist in AI and researched at CMU LTI as a visiting scientist mentored by Jaime Carbonell.

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We propose VERISCORE, a metric for diverse long-form generation tasks that contain both verifiable and unverifiable content. VERISCORE can be effectively implemented with either closed or fine-tuned open-weight language models, and human evaluation confirms that VERISCORE’s extracted claims are more sensible than those from competing methods across eight different long-form tasks.

While long-context large language models (LLMs) can technically summarize book-length documents (>100K tokens), the length and complexity of the documents have so far prohibited evaluations of input-dependent aspects like faithfulness. In this paper, we conduct the first large-scale human evaluation of faithfulness and content selection on LLM-generated summaries of fictional books.

This paper introduces an innovative approach that leverages vision-language models (VLMs) to interpret complex street crossing scenes, offering a potential advancement over conventional traffic signal recognition techniques.

We propose an unsupervised learning approach to text interpolation for the purpose of data augmentation that does not require any heuristics nor manually crafted resources but learns to interpolate between any pair of natural language sentences over a natural language manifold.

We propose a data-centric framework to construct a new feature space that can capture various characteristics of datasets and novel sampling method to select a set of data points that maximizes the group informativeness.

We propose Meta-Crafting: a unified method that can capture both background and semantic shifts. Specifically, we construct a new discriminative feature space to detect OOD samples

I demonstrate that the amount of labeled training data can be reduced using active learning when it incorporates both uncertainty and diversity in the sequence labeling task.

We propose a improved unigram-level Korean NER model with sub-character level representation, jamo, which can represent a unique linguistic structure of Korean and its syntactic properties and morphological variations.

We collect users' music listening behavior from Twitter using music-related hashtags (eg,# nowplaying). We then build a predictive model to forecast the Billboard rankings and hit music.

We build on key principles of visual analytics and describe an end-to-end, visual exploration system for tweets that both presents overall summaries and supports analysis of any variations that exists in the activity