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The paradigm shift from item-centric ranking to answer-centric synthesis is redefining the role of search engines. While recent industrial progress has applied generative techniques to closed-set item ranking in e-commerce, research and…

Computation and Language · Computer Science 2026-03-12 Wei Wu , Peilun Zhou , Liyi Chen , Qimeng Wang , Chengqiang Lu , Yan Gao , Yi Wu , Yao Hu , Hui Xiong

A crucial challenge for generative large language models (LLMs) is diversity: when a user's prompt is under-specified, models may follow implicit assumptions while generating a response, which may result in homogenization of the responses,…

The efficacy of large language models (LLMs) is heavily dependent on the quality of the underlying data, particularly within specialized domains. A common challenge when fine-tuning LLMs for domain-specific applications is the potential…

Computation and Language · Computer Science 2024-03-15 Jianwei Sun , Chaoyang Mei , Linlin Wei , Kaiyu Zheng , Na Liu , Ming Cui , Tianyi Li

Reliable data quality is crucial for downstream analysis of tabular datasets, yet rule-based validation often struggles with inefficiency, human intervention, and high computational costs. We present a three-stage framework that combines…

Software Engineering · Computer Science 2025-09-23 Ashlesha Akella , Akshar Kaul , Krishnasuri Narayanam , Sameep Mehta

Recent advancements in large language models (LLMs) have remarkably enhanced performances on a variety of tasks in multiple languages. However, tokenizers in LLMs trained primarily on English-centric corpora often overly fragment a text…

Computation and Language · Computer Science 2024-08-07 Jimin Hong , Gibbeum Lee , Jaewoong Cho

The recent surge of Large Language Models (LLMs) has led to claims that they are approaching a level of creativity akin to human capabilities. This idea has sparked a blend of excitement and apprehension. However, a critical piece that has…

Computation and Language · Computer Science 2025-07-03 Antoine Bellemare-Pepin , François Lespinasse , Philipp Thölke , Yann Harel , Kory Mathewson , Jay A. Olson , Yoshua Bengio , Karim Jerbi

Data augmentation is an essential technique in natural language processing (NLP) for enriching training datasets by generating diverse samples. This process is crucial for improving the robustness and generalization capabilities of NLP…

Computation and Language · Computer Science 2025-10-16 Zaitian Wang , Jinghan Zhang , Xinhao Zhang , Kunpeng Liu , Pengfei Wang , Yuanchun Zhou

Large language models (LLMs) have shown impressive promise in code generation, yet their progress remains limited by the shortage of large-scale datasets that are both diverse and well-aligned with human reasoning. Most existing resources…

Machine Learning · Computer Science 2025-10-28 Amal Abed , Ivan Lukic , Jörg K. H. Franke , Frank Hutter

In many text-generation problems, users may prefer not only a single response, but a diverse range of high-quality outputs from which to choose. Quality-diversity (QD) search algorithms aim at such outcomes, by continually improving and…

Long-form text generation remains a significant challenge for large language models (LLMs), particularly in maintaining coherence, ensuring logical consistency, and preserving text quality as sequence length increases. To address these…

Computation and Language · Computer Science 2025-06-05 Yuhao Wu , Yushi Bai , Zhiqiang Hu , Juanzi Li , Roy Ka-Wei Lee

Large language models (LLMs) enable a new form of advertising for retrieval-augmented generation (RAG) systems in which organic responses are blended with contextually relevant ads. The prospect of such "generated native ads" has sparked…

Information Retrieval · Computer Science 2026-04-10 Sebastian Heineking , Wilhelm Pertsch , Ines Zelch , Janek Bevendorff , Benno Stein , Matthias Hagen , Martin Potthast

Web research and practices have evolved significantly over time, offering users diverse and accessible solutions across a wide range of tasks. While advanced concepts such as Web 4.0 have emerged from mature technologies, the introduction…

Information Retrieval · Computer Science 2026-02-20 Amirereza Abbasi , Mohsen Hooshmand

Large Language Models (LLMs) have shown remarkable prowess in text generation, yet producing long-form, factual documents grounded in extensive external knowledge bases remains a significant challenge. Existing "top-down" methods, which…

Computation and Language · Computer Science 2025-09-17 Binquan Ji , Jiaqi Wang , Ruiting Li , Xingchen Han , Yiyang Qi , Shichao Wang , Yifei Lu , Yuantao Han , Feiliang Ren

Reinforcement learning (RL) has emerged as a popular method for post-training large language models (LLMs). While improving the model's performance on downstream tasks, it often reduces the model's output diversity, leading to narrow,…

Computation and Language · Computer Science 2026-03-03 Yilei Chen , Souradip Chakraborty , Lorenz Wolf , Yannis Paschalidis , Aldo Pacchiano

Fine-tuning vision-language models (VLMs) with large amounts of unlabeled data has recently garnered significant interest. However, a key challenge remains the lack of high-quality pseudo-labeled data. Current pseudo-labeling strategies…

Computer Vision and Pattern Recognition · Computer Science 2025-04-17 Hairui Ren , Fan Tang , He Zhao , Zixuan Wang , Dandan Guo , Yi Chang

As conversational search engines increasingly adopt generation-based paradigms powered by Large Language Models (LLMs) and Retrieval-Augmented Generation (RAG), the integration of advertisements into generated responses presents both…

Computation and Language · Computer Science 2025-07-02 To Eun Kim , João Coelho , Gbemileke Onilude , Jai Singh

Automatic Speech Recognition (ASR) transcripts often contain disfluencies, such as fillers, repetitions, and false starts, which reduce readability and hinder downstream applications like chatbots and voice assistants. If left unaddressed,…

Computation and Language · Computer Science 2026-05-13 Deepak Kumar , Baban Gain , Asif Ekbal

In commonsense generation, given a set of input concepts, a model must generate a response that is not only commonsense bearing, but also capturing multiple diverse viewpoints. Numerous evaluation metrics based on form- and content-level…

Computation and Language · Computer Science 2025-06-03 Tianhui Zhang , Bei Peng , Danushka Bollegala

Click-Through Rate (CTR) prediction is essential in online advertising, where semantic information plays a pivotal role in shaping user decisions and enhancing CTR effectiveness. Capturing and modeling deep semantic information, such as a…

Machine Learning · Computer Science 2025-03-05 Guoxiao Zhang , Yi Wei , Yadong Zhang , Huajian Feng , Qiang Liu

Ensuring robust safety measures across a wide range of scenarios is crucial for user-facing systems. While Large Language Models (LLMs) can generate valuable data for safety measures, they often exhibit distributional biases, focusing on…

Computation and Language · Computer Science 2024-10-16 Sabit Hassan , Anthony Sicilia , Malihe Alikhani