activity
20092026
most citedBlock Coordinate Descent for Sparse NMF

15 citations · 48 across the 32 of their papers we have counts for

collaborators

33 papers

cs.LG2026

Seq2Synth: Benchmarking Temporal Fidelity in Synthetic Sequential Tabular Data

Kiwan Kwon, Kangmin Kim, Hojin Lee +5

Synthetic sequential tabular data are increasingly used for privacy-preserving data sharing and research, yet conventional tabular metrics often overlook temporal structure. Existi…

cs.LG2026

Dynamic Linear Coregionalization for Realistic Synthetic Multivariate Time Series

Annita Vapsi, Penghang Liu, Saheed Obitayo +8

Synthetic data is essential for training foundation models for time series (FMTS), but most generators assume static correlations, and are typically missing realistic inter-channel…

stat.ML2025

Beyond Linear Diffusions: Improved Representations for Rare Conditional Generative Modeling

Kulunu Dharmakeerthi, Yousef El-Laham, Henry H. Wong +3

Diffusion models have emerged as powerful generative frameworks with widespread applications across machine learning and artificial intelligence systems. While current research has…

cs.AI2025★ 1 cited

TS-Agent: Understanding and Reasoning Over Raw Time Series via Iterative Insight Gathering

Penghang Liu, Elizabeth Fons, Annita Vapsi +5

Large language models (LLMs) exhibit strong symbolic and compositional reasoning, yet they struggle with time series question answering as the data is typically transformed into an…

cs.CL2025

Do LLMs Really Forget? Evaluating Unlearning with Knowledge Correlation and Confidence Awareness

Rongzhe Wei, Peizhi Niu, Hans Hao-Hsun Hsu +9

Machine unlearning techniques aim to mitigate unintended memorization in large language models (LLMs). However, existing approaches predominantly focus on the explicit removal of i…

cs.CR2025

Breaking Distortion-free Watermarks in Large Language Models

Shayleen Reynolds, Hengzhi He, Dung Daniel T. Ngo +5

In recent years, LLM watermarking has emerged as an attractive safeguard against AI-generated content, with promising applications in many real-world domains. However, there are gr…