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Feature selection is a combinatorial optimization problem that is NP-hard. Conventional approaches often employ heuristic or greedy strategies, which are prone to premature convergence and may fail to capture subtle yet informative…

Machine Learning · Computer Science 2025-10-22 Yusi Fan , Tian Wang , Zhiying Yan , Chang Liu , Qiong Zhou , Qi Lu , Zhehao Guo , Ziqi Deng , Wenyu Zhu , Ruochi Zhang , Fengfeng Zhou

Traditional continual event detection relies on abundant labeled data for training, which is often impractical to obtain in real-world applications. In this paper, we introduce continual few-shot event detection (CFED), a more commonly…

Computation and Language · Computer Science 2024-03-27 Chenlong Zhang , Pengfei Cao , Yubo Chen , Kang Liu , Zhiqiang Zhang , Mengshu Sun , Jun Zhao

Assigning a set of labels to a given text is a classification problem with many real-world applications, such as recommender systems. Two separate research streams address this issue. Hierarchical Text Classification (HTC) focuses on…

Computation and Language · Computer Science 2026-01-27 Nerijus Bertalis , Paul Granse , Ferhat Gül , Florian Hauss , Leon Menkel , David Schüler , Tom Speier , Lukas Galke , Ansgar Scherp

The task of definition detection is important for scholarly papers, because papers often make use of technical terminology that may be unfamiliar to readers. Despite prior work on definition detection, current approaches are far from being…

Computation and Language · Computer Science 2020-10-13 Dongyeop Kang , Andrew Head , Risham Sidhu , Kyle Lo , Daniel S. Weld , Marti A. Hearst

The Basic Local Alignment Search Tool (BLAST) is currently the most popular method for searching databases of biological sequences. BLAST compares sequences via similarity defined by a weighted edit distance, which results in it being…

Biomolecules · Quantitative Biology 2020-10-29 Amir Shanehsazzadeh , David Belanger , David Dohan

Accurate food intake monitoring is crucial for maintaining a healthy diet and preventing nutrition-related diseases. With the diverse range of foods consumed across various cultures, classic food classification models have limitations due…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Hassan Kazemi Tehrani , Jun Cai , Abbas Yekanlou , Sylvia Santosa

Few-shot graph classification aims at predicting classes for graphs, given limited labeled graphs for each class. To tackle the bottleneck of label scarcity, recent works propose to incorporate few-shot learning frameworks for fast…

Machine Learning · Computer Science 2022-05-10 Song Wang , Yushun Dong , Xiao Huang , Chen Chen , Jundong Li

Hierarchical multi-granularity classification (HMC) assigns hierarchical multi-granularity labels to each object and focuses on encoding the label hierarchy, e.g., ["Albatross", "Laysan Albatross"] from coarse-to-fine levels. However, the…

Computer Vision and Pattern Recognition · Computer Science 2022-01-12 Jingzhou Chen , Peng Wang , Jian Liu , Yuntao Qian

Existing text classification methods mainly focus on a fixed label set, whereas many real-world applications require extending to new fine-grained classes as the number of samples per label increases. To accommodate such requirements, we…

Computation and Language · Computer Science 2021-09-23 Dheeraj Mekala , Varun Gangal , Jingbo Shang

We introduce a simple yet effective distillation framework that is able to boost the vanilla ResNet-50 to 80%+ Top-1 accuracy on ImageNet without tricks. We construct such a framework through analyzing the problems in the existing…

Computer Vision and Pattern Recognition · Computer Science 2021-03-22 Zhiqiang Shen , Marios Savvides

Hierarchical text classification aims to categorize each document into a set of classes in a label taxonomy, which is a fundamental web text mining task with broad applications such as web content analysis and semantic indexing. Most…

Computation and Language · Computer Science 2025-02-06 Yunyi Zhang , Ruozhen Yang , Xueqiang Xu , Rui Li , Jinfeng Xiao , Jiaming Shen , Jiawei Han

Hierarchical multi-label classification (HMLC) is essential for modeling structured label dependencies in remote sensing. Yet existing approaches struggle in multi-path settings, where images may activate multiple taxonomic branches,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Boshko Koloski , Marjan Stoimchev , Jurica Levatić , Dragi Kocev , Sašo Džeroski

Food segmentation, including in videos, is vital for addressing real-world health, agriculture, and food biotechnology issues. Current limitations lead to inaccurate nutritional analysis, inefficient crop management, and suboptimal food…

Computer Vision and Pattern Recognition · Computer Science 2025-02-11 Ahmad AlMughrabi , Adrián Galán , Ricardo Marques , Petia Radeva

Generating realistic food images for categories with multiple nouns is surprisingly challenging. For instance, the prompt "egg noodle" may result in images that incorrectly contain both eggs and noodles as separate entities. Multi-noun food…

Computer Vision and Pattern Recognition · Computer Science 2025-12-11 Xinyue Pan , Yuhao Chen , Jiangpeng He , Fengqing Zhu

We present a production-oriented semantic retrieval system for Uber Eats that unifies retrieval across stores, dishes, and grocery/retail items. Our approach fine-tunes a Qwen2 two-tower base model using hundreds of millions of…

Information Retrieval · Computer Science 2026-03-12 Bo Ling , Zheng Liu , Haoyang Chen , Divya Nagar , Luting Yang , Mehul Parsana

Hierarchical feature representations play a pivotal role in computer vision, particularly in object detection for autonomous driving. Multi-level semantic understanding is crucial for accurately identifying pedestrians, vehicles, and…

Computer Vision and Pattern Recognition · Computer Science 2025-08-01 Xiaojian Lin , Wenxin Zhang , Yuchu Jiang , Wangyu Wu , Yiran Guo , Kangxu Wang , Zongzheng Zhang , Guijin Wang , Lei Jin , Hao Zhao

With the rapid advancement of large language models (LLMs), growing efforts have been made on LLM-based table retrieval. However, existing studies typically focus on single-table query, and implement it by similarity matching after encoding…

Information Retrieval · Computer Science 2026-03-31 Chaojie Sun , Bin Cao , Tiantian Li , Chenyu Hou , Ruizhe Li , Jing Fan

Large language models (LLMs) are increasingly expected to tackle complex tasks, driven by their expanding applications and users' growing proficiency in crafting sophisticated prompts. However, as the number of explicitly stated…

Retrieval-Augmented Generation (RAG) systems are widely adopted in knowledge-intensive NLP tasks, but current evaluations often overlook the structural complexity and multi-step reasoning required in real-world scenarios. These benchmarks…

Computation and Language · Computer Science 2025-12-16 Jeongsoo Lee , Daeyong Kwon , Kyohoon Jin

Deep learning based methods have achieved impressive results in many applications for image-based diet assessment such as food classification and food portion size estimation. However, existing methods only focus on one task at a time,…

Computer Vision and Pattern Recognition · Computer Science 2020-04-29 Jiangpeng He , Zeman Shao , Janine Wright , Deborah Kerr , Carol Boushey , Fengqing Zhu
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