Publications

2025

Empowering Time Series Analysis with Synthetic Data: A Survey and Outlook in the Era of Foundation Models
Xu Liu, Taha Aksu, Juncheng Liu, Qingsong Wen, Yuxuan Liang, Caiming Xiong, Silvio Savarese, Doyen Sahoo, Junnan Li, Chenghao Liu
Preprint

2024

GIFT-Eval: A Benchmark For General Time Series Forecasting Model Evaluation
Taha Aksu, Gerald Woo, Juncheng Liu, Chenghao Liu, Silvio Savarese, Caiming Xiong, Doyen Sahoo
Preprint, LeaderBoard

Moirai-MoE: Empowering Time Series Foundation Models with Sparse Mixture of Experts
Xu Liu,Juncheng Liu, Gerald Woo, Taha Aksu, Yuxuan Liang, Roger Zimmermann, Chenghao Liu, Silvio Savarese, Caiming Xiong, Doyen Sahoo
In _Forty-Second International Conference on Machine Learning. ICML 2025

XForecast: Evaluating Natural Language Explanations for Time Series Forecasting
Taha Aksu, Chenghao Liu, Amrita Saha, Sarah Tan, Caiming Xiong, Doyen Sahoo
Preprint

2023

CESAR: Automatic Induction of Compositional Instructions for Multi-turn Dialogs
Ibrahim Taha Aksu, Devamanyu Hazarika, Shikib Mehri, Seokhwan Kim, Dilek Hakkani-Tur, Yang Liu, Mahdi Namazifar
In The 2023 Conference on Empirical Methods in Natural Language Processing: EMNLP 2023 (Long Paper). EMNLP 2023.

Prompter: Zero-shot Adaptive Prefixes for Dialogue State Tracking Domain Adaptation
Ibrahim Taha Aksu, Min-Yen Kan, Nancy F. Chen
In The Association for Computational Linguistics: ACL 2023 (Long Paper). ACL 2023.
Video, Slides & Poster. Code

2022

N-Shot Learning for Augmenting Task-Oriented Dialogue State Tracking)
Ibrahim Taha Aksu, Zhengyuan Liu, Min-Yen Kan, Nancy F. Chen
In Findings of the Association for Computational Linguistics: ACL 2022 (Long Paper). ACL Findings 2022.
Video, Slides & Poster

2021

Velocidapter: Task-oriented Dialogue Comprehension Modeling Pairing Synthetic Text Generation with Domain Adaptation
Ibrahim Taha Aksu, Zhengyuan Liu, Min-Yen Kan, Nancy F. Chen
In SIGDIAL – Special Interest Group on Discourse and Dialogue: SIGDIAL 2021 (Long Paper). SIGDIAL 2021.
Video and Slides. Code

2019

Reranking of responses using transfer learning for a retrieval-based chatbot
Ibrahim Taha Aksu, Nancy F. Chen, Luis Fernando D’Haro, Rafael Banchs
In Tenth International Workshop on Spoken Dialogue Systems Technology: IWSDS 2019. IWSDS 2019.