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This paper highlights the importance of personalization in large language models and introduces the LaMP benchmark -- a novel benchmark for training and evaluating language models for producing personalized outputs. LaMP offers a…

Computation and Language · Computer Science 2024-06-06 Alireza Salemi , Sheshera Mysore , Michael Bendersky , Hamed Zamani

The finetuning of Large Language Models (LLMs) has significantly advanced their instruction-following capabilities, yet the underlying computational mechanisms driving these improvements remain poorly understood. This study systematically…

Computation and Language · Computer Science 2025-05-28 Junyan Zhang , Yubo Gao , Yibo Yan , Jungang Li , Zhaorui Hou , Sicheng Tao , Shuliang Liu , Song Dai , Yonghua Hei , Junzhuo Li , Xuming Hu

Large language models (LLMs) have recently shown strong potential for ranking by capturing semantic relevance and adapting across diverse domains, yet existing methods remain constrained by limited context length and high computational…

Information Retrieval · Computer Science 2026-05-28 Tao Feng , Zijie Lei , Zhigang Hua , Yan Xie , Shuang Yang , Ge Liu , Jiaxuan You

As educational systems evolve, ensuring that assessment items remain aligned with content standards is essential for maintaining fairness and instructional relevance. Traditional human alignment reviews are accurate but slow and…

Artificial Intelligence · Computer Science 2025-11-26 Farzan Karimi-Malekabadi , Pooya Razavi , Sonya Powers

This work addresses challenges arising from extracting entities from textual data, including the high cost of data annotation, model accuracy, selecting appropriate evaluation criteria, and the overall quality of annotation. We present a…

Computation and Language · Computer Science 2020-04-28 Hussein S. Al-Olimat , Steven Gustafson , Jason Mackay , Krishnaprasad Thirunarayan , Amit Sheth

Large Language Models (LLMs) have recently been applied to reranking tasks in information retrieval, achieving strong performance. However, their high computational demands often hinder practical deployment. Existing studies evaluate the…

Computation and Language · Computer Science 2025-10-10 Zhiyuan Peng , Ting-ruen Wei , Tingyu Song , Yilun Zhao

Learning continuous representations of discrete objects such as text, users, movies, and URLs lies at the heart of many applications including language and user modeling. When using discrete objects as input to neural networks, we often…

Machine Learning · Computer Science 2021-03-12 Paul Pu Liang , Manzil Zaheer , Yuan Wang , Amr Ahmed

The proliferation of Large Language Models (LLMs) necessitates efficient mechanisms to distinguish machine-generated content from human text. While statistical watermarking has emerged as a promising solution, existing methods suffer from…

Machine Learning · Computer Science 2026-02-20 Baihe Huang , Eric Xu , Kannan Ramchandran , Jiantao Jiao , Michael I. Jordan

Sparse representation-based classifiers have shown outstanding accuracy and robustness in image classification tasks even with the presence of intense noise and occlusion. However, it has been discovered that the performance degrades…

Computer Vision and Pattern Recognition · Computer Science 2015-12-22 Xiaoxia Sun , Nasser M. Nasrabadi , Trac D. Tran

Fine-tuning large language models (LLMs) requires significant memory, often exceeding the capacity of a single GPU. A common solution to this memory challenge is offloading compute and data from the GPU to the CPU. However, this approach is…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-02-11 Siyuan Chen , Zhuofeng Wang , Zelong Guan , Yudong Liu , Phillip B. Gibbons

Sparse matrix computation is crucial in various modern applications, including large-scale graph analytics, deep learning, and recommender systems. The performance of sparse kernels varies greatly depending on the structure of the input…

Hardware Architecture · Computer Science 2024-07-31 Francesco Sgherzi , Marco Siracusa , Ivan Fernandez , Adrià Armejach , Miquel Moretó

The SparseStep algorithm is presented for the estimation of a sparse parameter vector in the linear regression problem. The algorithm works by adding an approximation of the exact counting norm as a constraint on the model parameters and…

Methodology · Statistics 2017-01-25 Gerrit J. J. van den Burg , Patrick J. F. Groenen , Andreas Alfons

Large language model (LLM) evaluation platforms increasingly rely on pairwise human judgments. These data are noisy, sparse, and non-uniform, yet leaderboards are reported with limited uncertainty quantification. We study this as…

Methodology · Statistics 2026-04-08 Jiachun Li , David Simchi-Levi , Will Wei Sun

We study algorithms for estimating the statistical leverage scores of rectangular dense or sparse matrices of arbitrary rank. Our approach is based on combining rank revealing methods with compositions of dense and sparse randomized…

Data Structures and Algorithms · Computer Science 2022-03-08 Aleksandros Sobczyk , Efstratios Gallopoulos

The increasing versatility of language models (LMs) has given rise to a new class of benchmarks that comprehensively assess a broad range of capabilities. Such benchmarks are associated with massive computational costs, extending to…

Computation and Language · Computer Science 2024-04-02 Yotam Perlitz , Elron Bandel , Ariel Gera , Ofir Arviv , Liat Ein-Dor , Eyal Shnarch , Noam Slonim , Michal Shmueli-Scheuer , Leshem Choshen

Product search is a crucial component of modern e-commerce platforms, with billions of user queries every day. In product search systems, first-stage retrieval should achieve high recall while ensuring efficient online deployment. Sparse…

Information Retrieval · Computer Science 2025-10-23 Hongru Song , Yu-an Liu , Ruqing Zhang , Jiafeng Guo , Maarten de Rijke , Sen Li , Wenjun Peng , Fuyu Lv , Xueqi Cheng

As large language models (LLMs) continue to scale in size, the computational overhead has become a major bottleneck for task-specific fine-tuning. While low-rank adaptation (LoRA) effectively curtails this cost by confining the weight…

Machine Learning · Computer Science 2026-05-15 Yilang Zhang , Xiaodong Yang , Yiwei Cai , Georgios B. Giannakis

Recent studies have shown that supervised fine-tuning of LLMs on a small number of high-quality datasets can yield strong reasoning capabilities. However, full fine-tuning (Full FT), while powerful, is computationally expensive and…

Machine Learning · Computer Science 2026-04-21 Zihang Liu , Tianyu Pang , Oleg Balabanov , Chaoqun Yang , Tianjin Huang , Lu Yin , Yaoqing Yang , Shiwei Liu

Recently, the fast development of Large Language Models (LLMs) such as ChatGPT has significantly advanced NLP tasks by enhancing the capabilities of conversational models. However, the application of LLMs in the recommendation domain has…

Information Retrieval · Computer Science 2023-08-24 Junling Liu , Chao Liu , Peilin Zhou , Qichen Ye , Dading Chong , Kang Zhou , Yueqi Xie , Yuwei Cao , Shoujin Wang , Chenyu You , Philip S. Yu

As Large Language Models (LLMs) scale to longer context windows, the computational cost of attention mechanisms, which traditionally grows quadratically with input length, presents a critical challenge for real-time and memory-constrained…

Computation and Language · Computer Science 2024-12-10 James Vo