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Large language models (LLMs) are increasingly used for semantic query processing over large corpora. A set of semantic operators derived from relational algebra has been proposed to provide a unified interface for expressing such queries,…

Databases · Computer Science 2026-03-06 Nan Hou , Kangfei Zhao , Jiadong Xie , Jeffrey Xu Yu

Topic modeling is widely used for uncovering thematic structures within text corpora, yet traditional models often struggle with specificity and coherence in domain-focused applications. Guided approaches, such as SeededLDA and CorEx,…

Computation and Language · Computer Science 2025-05-23 Chia-Hsuan Chang , Jui-Tse Tsai , Yi-Hang Tsai , San-Yih Hwang

In neural Information Retrieval (IR), ongoing research is directed towards improving the first retriever in ranking pipelines. Learning dense embeddings to conduct retrieval using efficient approximate nearest neighbors methods has proven…

Information Retrieval · Computer Science 2021-09-22 Thibault Formal , Carlos Lassance , Benjamin Piwowarski , Stéphane Clinchant

Domain generalization aims to learn a generalization model that can perform well on unseen test domains by only training on limited source domains. However, existing domain generalization approaches often bring in prediction-irrelevant…

Computer Vision and Pattern Recognition · Computer Science 2023-08-02 Chia-Yuan Chang , Yu-Neng Chuang , Guanchu Wang , Mengnan Du , Na Zou

We propose a simple and efficient clustering method for high-dimensional data with a large number of clusters. Our algorithm achieves high-performance by evaluating distances of datapoints with a subset of the cluster centres. Our…

Machine Learning · Computer Science 2022-03-30 Georgios Exarchakis , Omar Oubari , Gregor Lenz

Partial domain adaptation which assumes that the unknown target label space is a subset of the source label space has attracted much attention in computer vision. Despite recent progress, existing methods often suffer from three key…

Computer Vision and Pattern Recognition · Computer Science 2023-01-05 Aadarsh Sahoo , Rameswar Panda , Rogerio Feris , Kate Saenko , Abir Das

Multiple clustering aims to discover various latent structures of data from different aspects. Deep multiple clustering methods have achieved remarkable performance by exploiting complex patterns and relationships in data. However, existing…

Machine Learning · Computer Science 2024-11-07 Jiawei Yao , Qi Qian , Juhua Hu

In spite of strong performance achieved by LLMs, the costs of their deployment are unaffordable. For the compression of LLMs, gradient-based pruning methods present promising effectiveness. However, in these methods, the gradient…

Computation and Language · Computer Science 2025-06-16 Hourun Zhu , Chengchao Shen

In many applications of X-ray computed tomography, an unsupervised segmentation of the reconstructed 3D volumes forms an important step in the image processing chain for further investigation of the digitized object. Therefore, the goal is…

Computer Vision and Pattern Recognition · Computer Science 2023-03-09 Thomas Lang

Selecting high-quality training data from a larger pool is a crucial step when instruction-tuning language models, as carefully curated datasets often produce models that outperform those trained on much larger, noisier datasets. Automated…

Computation and Language · Computer Science 2025-06-23 Hamish Ivison , Muru Zhang , Faeze Brahman , Pang Wei Koh , Pradeep Dasigi

Recent research has demonstrated the feasibility of training efficient intent detectors based on pre-trained language model~(PLM) with limited labeled data. However, deploying these detectors in resource-constrained environments such as…

Computation and Language · Computer Science 2024-09-17 Haode Zhang , Albert Y. S. Lam , Xiao-Ming Wu

A key challenge of dialog systems research is to effectively and efficiently adapt to new domains. A scalable paradigm for adaptation necessitates the development of generalizable models that perform well in few-shot settings. In this…

Computation and Language · Computer Science 2021-05-26 Shikib Mehri , Mihail Eric

Clustering is one of the fundamental tasks in computer vision and pattern recognition. Recently, deep clustering methods (algorithms based on deep learning) have attracted wide attention with their impressive performance. Most of these…

Computer Vision and Pattern Recognition · Computer Science 2021-06-14 Yanhai Gan , Xinghui Dong , Huiyu Zhou , Feng Gao , Junyu Dong

Multi-view clustering has become a significant area of research, with numerous methods proposed over the past decades to enhance clustering accuracy. However, in many real-world applications, it is crucial to demonstrate a clear…

Machine Learning · Computer Science 2025-02-07 Mudi Jiang , Lianyu Hu , Zengyou He , Zhikui Chen

In many fields, researchers are interested in large and complex biological processes. Two important examples are gene expression and DNA methylation in genetics. One key problem is to identify aberrant patterns of these processes and…

Applications · Statistics 2012-10-03 Matthias Kormaksson , James G. Booth , Maria E. Figueroa , Ari Melnick

Personalized multiple clustering aims to generate diverse partitions of a dataset based on different user-specific aspects, rather than a single clustering. It has recently drawn research interest for accommodating varying user preferences.…

Artificial Intelligence · Computer Science 2025-05-29 Ziye Chen , Yiqun Duan , Riheng Zhu , Zhenbang Sun , Mingming Gong

Recent open-vocabulary segmentation methods adopt mask generators to predict segmentation masks and leverage pre-trained vision-language models, e.g., CLIP, to classify these masks via mask pooling. Although these approaches show promising…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Yongkang Li , Tianheng Cheng , Bin Feng , Wenyu Liu , Xinggang Wang

Instruction fine-tuning has conventionally been employed to adapt Large Language Models (LLMs) to a variety of tasks. Nonetheless, this technique often necessitates substantial computational resources, making it impractical for deployment…

Computation and Language · Computer Science 2024-10-08 Zhenting Qi , Xiaoyu Tan , Shaojie Shi , Chao Qu , Yinghui Xu , Yuan Qi

Sentence embedding methods offer a powerful approach for working with short textual constructs or sequences of words. By representing sentences as dense numerical vectors, many natural language processing (NLP) applications have improved…

Computation and Language · Computer Science 2021-10-05 Yuan An , Alexander Kalinowski , Jane Greenberg

Large language models (LLMs) have achieved huge success in numerous natural language process (NLP) tasks. However, it faces the challenge of significant resource consumption during inference. In this paper, we aim to improve the inference…

Computation and Language · Computer Science 2024-02-05 Hanlin Zhu , Banghua Zhu , Jiantao Jiao