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We study the problem of $\textit{vector set search}$ with $\textit{vector set queries}$. This task is analogous to traditional near-neighbor search, with the exception that both the query and each element in the collection are…

Data Structures and Algorithms · Computer Science 2023-10-27 Joshua Engels , Benjamin Coleman , Vihan Lakshman , Anshumali Shrivastava

State-of-the-art neural retrievers predominantly focus on high-resource languages like English, which impedes their adoption in retrieval scenarios involving other languages. Current approaches circumvent the lack of high-quality labeled…

Computation and Language · Computer Science 2024-02-26 Antoine Louis , Vageesh Saxena , Gijs van Dijck , Gerasimos Spanakis

Recent work has made a preliminary attempt to use large language models (LLMs) to solve the stance detection task, showing promising results. However, considering that stance detection usually requires detailed background knowledge, the…

Computation and Language · Computer Science 2024-04-29 Xiaolong Wang , Yile Wang , Sijie Cheng , Peng Li , Yang Liu

Labor market analysis relies on extracting insights from job advertisements, which provide valuable yet unstructured information on job titles and corresponding skill requirements. While state-of-the-art methods for skill extraction achieve…

Computation and Language · Computer Science 2025-07-30 Jens-Joris Decorte , Jeroen Van Hautte , Chris Develder , Thomas Demeester

The recent advances of convolutional detectors show impressive performance improvement for large scale object detection. However, in general, the detection performance usually decreases as the object classes to be detected increases, and it…

Computer Vision and Pattern Recognition · Computer Science 2017-12-04 Seung-Hwan Bae , Youngwan Lee , Youngjoo Jo , Yuseok Bae , Joong-won Hwang

The advancement of transformer neural networks has significantly elevated the capabilities of sentence similarity models, but they still struggle with highly discriminative tasks and may produce sub-optimal representations of important…

Machine Learning · Computer Science 2024-12-19 Logan Hallee , Rohan Kapur , Arjun Patel , Jason P. Gleghorn , Bohdan Khomtchouk

Large Language Models (LLMs) have achieved state-of-the-art accuracies in a variety of natural language processing (NLP) tasks. However, this success comes at the cost of increased model sizes which leads to additional computational burden.…

Machine Learning · Computer Science 2025-12-01 Shrihari Sridharan , Sourjya Roy , Anand Raghunathan , Kaushik Roy

Model merging, which combines multiple domain-specialized experts into a single model, offers a practical path to endow Large Language Models (LLMs) and Multimodal Large Language Models (MLLMs) with broad capabilities without the cost of…

Machine Learning · Computer Science 2025-10-01 Dengming Zhang , Xiaowen Ma , Zhenliang Ni , Zhenkai Wu , Han Shu , Xin Jiang , Xinghao Chen

Current large vision-language models (VLMs) often encounter challenges such as insufficient capabilities of a single visual component and excessively long visual tokens. These issues can limit the model's effectiveness in accurately…

Mixture of Experts (MoE) is a popular framework for modeling heterogeneity in data for regression, classification and clustering. For continuous data which we consider here in the context of regression and cluster analysis, MoE usually use…

Methodology · Statistics 2015-06-30 Faicel Chamroukhi

The Mixture-of-Experts (MoE) architecture has demonstrated significant advantages in the era of Large Language Models (LLMs), offering enhanced capabilities with reduced inference costs. However, deploying MoE-based LLMs on…

Machine Learning · Computer Science 2024-11-07 Peng Tang , Jiacheng Liu , Xiaofeng Hou , Yifei Pu , Jing Wang , Pheng-Ann Heng , Chao Li , Minyi Guo

Mixture of Experts (MoE) models constitute a widely utilized class of ensemble learning approaches in statistics and machine learning, known for their flexibility and computational efficiency. They have become integral components in…

Machine Learning · Statistics 2025-05-26 Tuan Thai , TrungTin Nguyen , Dat Do , Nhat Ho , Christopher Drovandi

Organizations face growing challenges in deriving meaningful insights from vast amounts of specialized text data. Conventional topic modeling techniques are typically static and unsupervised, making them ill-suited for fast-evolving fields…

Information Retrieval · Computer Science 2025-08-29 Ali Nazari , Michael Weiss

Mixture-of-Experts (MoE) models have become a key approach for scaling large language models efficiently by activating only a subset of experts during training and inference. Typically, the number of activated experts presents a trade-off:…

Machine Learning · Computer Science 2025-09-04 Yifei He , Yang Liu , Chen Liang , Hany Hassan Awadalla

Vector search has emerged as the foundation for large-scale information retrieval and machine learning systems, with search engines like Google and Bing processing tens of thousands of queries per second on petabyte-scale document datasets…

Mixture of Experts (MoE) LLMs face significant obstacles due to their massive parameter scale, which imposes memory, storage, and deployment challenges. Although recent expert merging methods promise greater efficiency by consolidating…

Machine Learning · Computer Science 2025-07-01 Lujun Li , Zhu Qiyuan , Jiacheng Wang , Wei Li , Hao Gu , Sirui Han , Yike Guo

Expert finding is an important task in both industry and academia. It is challenging to rank candidates with appropriate expertise for various queries. In addition, different types of objects interact with one another, which naturally forms…

Information Retrieval · Computer Science 2018-03-12 Huan Gui , Qi Zhu , Liyuan Liu , Aston Zhang , Jiawei Han

Vector representations and vector space modeling (VSM) play a central role in modern machine learning. We propose a novel approach to `vector similarity searching' over dense semantic representations of words and documents that can be…

Information Retrieval · Computer Science 2017-06-06 Jan Rygl , Jan Pomikálek , Radim Řehůřek , Michal Růžička , Vít Novotný , Petr Sojka

Diffusion transformers have been widely adopted for text-to-image synthesis. While scaling these models up to billions of parameters shows promise, the effectiveness of scaling beyond current sizes remains underexplored and challenging. By…

Computer Vision and Pattern Recognition · Computer Science 2025-03-05 Haotian Sun , Tao Lei , Bowen Zhang , Yanghao Li , Haoshuo Huang , Ruoming Pang , Bo Dai , Nan Du

Mixture-of-Experts (MoE) is a flexible framework that combines multiple specialized submodels (``experts''), by assigning covariate-dependent weights (``gating functions'') to each expert, and have been commonly used for analyzing…

Methodology · Statistics 2026-01-06 Qicheng Zhao , Celia M. T. Greenwood , Qihuang Zhang