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Selecting hyperparameters for unsupervised learning problems is challenging in general due to the lack of ground truth for validation. Despite the prevalence of this issue in statistics and machine learning, especially in clustering…

机器学习 · 统计学 2020-02-04 Xinjie Fan , Yuguang Yue , Purnamrita Sarkar , Y. X. Rachel Wang

We present a new method for large language models to solve compositional tasks. Although they have shown strong performance on traditional language understanding tasks, large language models struggle to solve compositional tasks, where the…

计算与语言 · 计算机科学 2024-07-09 Eric Pasewark , Kyle Montgomery , Kefei Duan , Dawn Song , Chenguang Wang

Text classification in education, usually called auto-tagging, is the automated process of assigning relevant tags to educational content, such as questions and textbooks. However, auto-tagging suffers from a data scarcity problem, which…

Modern machine learning algorithms are increasingly computationally demanding, requiring specialized hardware and distributed computation to achieve high performance in a reasonable time frame. Many hyperparameter search algorithms have…

机器学习 · 计算机科学 2018-07-16 Richard Liaw , Eric Liang , Robert Nishihara , Philipp Moritz , Joseph E. Gonzalez , Ion Stoica

Qualitative analysis of textual contents unpacks rich and valuable information by assigning labels to the data. However, this process is often labor-intensive, particularly when working with large datasets. While recent AI-based tools…

计算与语言 · 计算机科学 2023-04-24 Ziang Xiao , Xingdi Yuan , Q. Vera Liao , Rania Abdelghani , Pierre-Yves Oudeyer

Text embeddings are essential for many tasks, such as document retrieval, clustering, and semantic similarity assessment. In this paper, we study how to contrastively train text embedding models in a compute-optimal fashion, given a suite…

机器学习 · 计算机科学 2024-11-22 Alicja Ziarko , Albert Q. Jiang , Bartosz Piotrowski , Wenda Li , Mateja Jamnik , Piotr Miłoś

Recent years have seen a significant surge in complex AI systems for competitive programming, capable of performing at admirable levels against human competitors. While steady progress has been made, the highest percentiles still remain out…

The automated program repair field has attracted substantial interest over the years, but despite significant research efforts, creating a system that works well for complex semantic bugs such as security vulnerabilities has proven…

密码学与安全 · 计算机科学 2024-02-26 Berkay Berabi , Alexey Gronskiy , Veselin Raychev , Gishor Sivanrupan , Victor Chibotaru , Martin Vechev

Next-generation mobile networks are expected to facilitate fast AI model downloading to end users. By caching models on edge servers, mobile networks can deliver models to end users with low latency, resulting in a paradigm called edge…

网络与互联网体系结构 · 计算机科学 2024-05-21 Guanqiao Qu , Zheng Lin , Fangming Liu , Xianhao Chen , Kaibin Huang

Automated program repair (APR) attempts to generate correct patches and has drawn wide attention from both academia and industry in the past decades. However, APR is continuously struggling with the patch overfitting issue due to the weak…

软件工程 · 计算机科学 2026-04-07 Quanjun Zhang , Haichuan Hu , Chunrong Fang , Ye Shang , Tao Zheng , Zhenyu Chen , Yun Yang , Liang Xiao

The combined algorithm selection and hyperparameter tuning (CASH) problem is characterized by large hierarchical hyperparameter spaces. Model-free hyperparameter tuning methods can explore such large spaces efficiently since they are highly…

机器学习 · 计算机科学 2019-11-22 Dimitrios Sarigiannis , Thomas Parnell , Haris Pozidis

Large language models (LLMs) have made significant progress in code generation tasks, but their performance in tackling programming problems with complex data structures and algorithms remains suboptimal. To address this issue, we propose…

计算与语言 · 计算机科学 2024-01-11 Xueyu Hu , Kun Kuang , Jiankai Sun , Hongxia Yang , Fei Wu

Inspired by recent work on convex formulations of clustering (Lashkari & Golland, 2008; Nowozin & Bakir, 2008) we investigate a new formulation of the Sparse Coding Problem (Olshausen & Field, 1997). In sparse coding we attempt to…

机器学习 · 计算机科学 2012-05-14 David M. Bradley , J Andrew Bagnell

Underlying data distributions of natural language, programming code, and mathematical symbols vary vastly, presenting a complex challenge for large language models (LLMs) that strive to achieve high performance across all three domains…

计算与语言 · 计算机科学 2024-03-27 Ning Ding , Yulin Chen , Ganqu Cui , Xingtai Lv , Weilin Zhao , Ruobing Xie , Bowen Zhou , Zhiyuan Liu , Maosong Sun

Sampling-based decoding underlies complex reasoning in large language models (LLMs), where decoding strategies critically shape model behavior. Temperature- and truncation-based methods reshape the next-token distribution through global…

人工智能 · 计算机科学 2026-02-02 Yixin Yang , Qingxiu Dong , Zhifang Sui

Compound AI applications, composed from interactions between Large Language Models (LLMs), Machine Learning (ML) models, external tools and data sources are quickly becoming an integral workload in datacenters. Their diverse sub-components…

分布式、并行与集群计算 · 计算机科学 2026-04-14 Paramuth Samuthrsindh , Angel Cervantes , Varun Gohil , Gohar Irfan Chaudhry , Christina Delimitrou , Adam Belay

Pre-trained code models have emerged as the state-of-the-art paradigm for code search tasks. The paradigm involves pre-training the model on search-irrelevant tasks such as masked language modeling, followed by the fine-tuning stage, which…

软件工程 · 计算机科学 2024-11-25 Hande Dong , Jiayi Lin , Yanlin Wang , Yichong Leng , Jiawei Chen , Yutao Xie

We introduce the new concept of computation coding. Similar to how rate-distortion theory is concerned with the lossy compression of data, computation coding deals with the lossy computation of functions. Particularizing to linear…

信息论 · 计算机科学 2021-02-02 Ralf Müller , Bernhard Gäde , Ali Bereyhi

Since deep neural networks were developed, they have made huge contributions to everyday lives. Machine learning provides more rational advice than humans are capable of in almost every aspect of daily life. However, despite this…

机器学习 · 计算机科学 2020-03-13 Tong Yu , Hong Zhu

The ever-growing demand and complexity of machine learning are putting pressure on hyper-parameter tuning systems: while the evaluation cost of models continues to increase, the scalability of state-of-the-arts starts to become a crucial…

机器学习 · 计算机科学 2022-01-19 Yang Li , Yu Shen , Huaijun Jiang , Wentao Zhang , Jixiang Li , Ji Liu , Ce Zhang , Bin Cui