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Generating a synthetic population that is both feasible and diverse is crucial for ensuring the validity of downstream activity schedule simulation in activity-based models (ABMs). While deep generative models (DGMs), such as variational…

Machine Learning · Computer Science 2025-05-08 Sung Yoo Lim , Hyunsoo Yun , Prateek Bansal , Dong-Kyu Kim , Eui-Jin Kim

Fine-tuning for large language models (LLMs) typically requires substantial amounts of high-quality supervised data, which is both costly and labor-intensive to acquire. While synthetic data generation has emerged as a promising solution,…

Computation and Language · Computer Science 2025-05-28 Zihong Chen , Wanli Jiang , Jinzhe Li , Zhonghang Yuan , Huanjun Kong , Wanli Ouyang , Nanqing Dong

There is growing interest in hypothesis generation with large language models (LLMs). However, fundamental questions remain: what makes a good hypothesis, and how can we systematically evaluate methods for hypothesis generation? To address…

Artificial Intelligence · Computer Science 2026-02-12 Haokun Liu , Sicong Huang , Jingyu Hu , Yangqiaoyu Zhou , Chenhao Tan

Exploiting the recent advancements in artificial intelligence, showcased by ChatGPT and DALL-E, in real-world applications necessitates vast, domain-specific, and publicly accessible datasets. Unfortunately, the scarcity of such datasets…

Machine Learning · Computer Science 2023-05-17 Cyril Picard , Jürg Schiffmann , Faez Ahmed

Data imbalance in training data often leads to biased predictions from trained models, which in turn causes ethical and social issues. A straightforward solution is to carefully curate training data, but given the enormous scale of modern…

Computer Vision and Pattern Recognition · Computer Science 2024-04-26 Moon Ye-Bin , Nam Hyeon-Woo , Wonseok Choi , Nayeong Kim , Suha Kwak , Tae-Hyun Oh

Emotion recognition from social media is critical for understanding public sentiment, but accessing training data has become prohibitively expensive due to escalating API costs and platform restrictions. We introduce an…

Machine Learning · Computer Science 2025-11-21 Paula Joy B. Martinez , Jose Marie Antonio Miñoza , Sebastian C. Ibañez

While Large Language Models (LLMs) achieve near-human performance on standard benchmarks, their capabilities often fail to generalize to complex, real-world problems. To bridge this gap, we introduce DeepQuestion, a scalable, automated…

Computation and Language · Computer Science 2026-03-02 Ali Khoramfar , Ali Ramezani , Mohammad Mahdi Mohajeri , Mohammad Javad Dousti , Majid Nili Ahmadabadi , Heshaam Faili

This survey reviews how large language models (LLMs) are transforming synthetic training data generation in both natural language and code domains. By producing artificial but task-relevant examples, these models can significantly augment…

Computation and Language · Computer Science 2025-11-21 Mihai Nadas , Laura Diosan , Andreea Tomescu

Identifying AI-generated content is critical for the safe and ethical use of generative AI. Recent research has focused on developing detectors that generalize to unknown generators, with popular methods relying either on high-level…

Computer Vision and Pattern Recognition · Computer Science 2025-02-25 Seoyeon Gye , Junwon Ko , Hyounguk Shon , Minchan Kwon , Junmo Kim

Automatic detection of depression is a rapidly growing field of research at the intersection of psychology and machine learning. However, with its exponential interest comes a growing concern for data privacy and scarcity due to the…

Machine Learning · Computer Science 2024-11-27 Andrea Kang , Jun Yu Chen , Zoe Lee-Youngzie , Shuhao Fu

AI systems in healthcare research have shown potential to increase patient throughput and assist clinicians, yet progress is constrained by limited access to real patient data. To address this issue, we present a zero-shot, knowledge-guided…

Synthetic data has the potential to improve the performance, training efficiency, and privacy of real training examples. Nevertheless, existing approaches for synthetic text generation are mostly heuristics and cannot generate…

Machine Learning · Computer Science 2025-06-10 Dang Nguyen , Zeman Li , Mohammadhossein Bateni , Vahab Mirrokni , Meisam Razaviyayn , Baharan Mirzasoleiman

The generation of high-fidelity synthetic data is a cornerstone of modern machine learning, yet Large Language Models (LLMs) frequently suffer from hallucinations, logical inconsistencies, and mode collapse when tasked with structured…

Computation and Language · Computer Science 2026-04-14 Zehua Cheng , Wei Dai , Jiahao Sun , Thomas Lukasiewicz

We present SynthTextEval, a toolkit for conducting comprehensive evaluations of synthetic text. The fluency of large language model (LLM) outputs has made synthetic text potentially viable for numerous applications, such as reducing the…

Computation and Language · Computer Science 2025-11-04 Krithika Ramesh , Daniel Smolyak , Zihao Zhao , Nupoor Gandhi , Ritu Agarwal , Margrét Bjarnadóttir , Anjalie Field

Natural Language Inference (NLI) tasks require identifying the relationship between sentence pairs, typically classified as entailment, contradiction, or neutrality. While the current state-of-the-art (SOTA) model, Entailment Few-Shot…

Computation and Language · Computer Science 2024-12-16 Sourav Banerjee , Anush Mahajan , Ayushi Agarwal , Eishkaran Singh

Prior work synthesizes tool-use LLM datasets by first generating a user query, followed by complex tool-use annotations like depth-first search (DFS). This leads to inevitable annotation failures and low efficiency in data generation. We…

Computation and Language · Computer Science 2026-05-04 Zhongyi Zhou , Kohei Uehara , Haoyu Zhang , Jingtao Zhou , Lin Gu , Ruofei Du , Zheng Xu , Tatsuya Harada

Synthetic Data Generation (SDG), leveraging Large Language Models (LLMs), has recently been recognized and broadly adopted as an effective approach to improve the performance of smaller but more resource and compute efficient LLMs through…

Machine Learning · Computer Science 2026-03-25 Srideepika Jayaraman , Achille Fokoue , Dhaval Patel , Jayant Kalagnanam

The growing collaboration between humans and AI models in generative tasks has introduced new challenges in distinguishing between human-written, LLM-generated, and human-LLM collaborative texts. In this work, we collect a multilingual,…

Computation and Language · Computer Science 2026-02-10 Minh Ngoc Ta , Dong Cao Van , Duc-Anh Hoang , Minh Le-Anh , Truong Nguyen , My Anh Tran Nguyen , Yuxia Wang , Preslav Nakov , Sang Dinh

As Large Language Models (LLMs) and generative AI become increasingly widespread, concerns about content safety have grown in parallel. Currently, there is a clear lack of high-quality, human-annotated datasets that address the full…

Synthetic data is becoming an increasingly promising technology, and successful applications can improve privacy, fairness, and data democratization. While there are many methods for generating synthetic tabular data, the task remains…

Machine Learning · Computer Science 2023-02-27 Alexander Norcliffe , Bogdan Cebere , Fergus Imrie , Pietro Lio , Mihaela van der Schaar