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Hierarchical text classification (HTC) is essential for various real applications. However, HTC models are challenging to develop because they often require processing a large volume of documents and labels with hierarchical taxonomy.…

计算与语言 · 计算机科学 2023-11-08 SangHun Im , Gibaeg Kim , Heung-Seon Oh , Seongung Jo , Donghwan Kim

Hierarchical categorical variables often exhibit many levels (high granularity) and many classes within each level (high dimensionality). This may cause overfitting and estimation issues when including such covariates in a predictive model.…

统计方法学 · 统计学 2024-08-20 Paul Wilsens , Katrien Antonio , Gerda Claeskens

Hierarchical text classification (HTC) is a challenging subtask of multi-label classification due to its complex taxonomic structure. Nearly all recent HTC works focus on how the labels are structured but ignore the sub-structure of…

计算与语言 · 计算机科学 2024-04-01 Zihan Wang , Peiyi Wang , Houfeng Wang

Matrix factorization (MF) is a simple collaborative filtering technique that achieves superior recommendation accuracy by decomposing the user-item interaction matrix into user and item latent matrices. Because the model typically learns…

信息检索 · 计算机科学 2024-03-11 Kai Sugahara , Kazushi Okamoto

Current evaluation functions for heuristic planning are expensive to compute. In numerous planning problems these functions provide good guidance to the solution, so they are worth the expense. However, when evaluation functions are…

人工智能 · 计算机科学 2014-01-17 Tomas De la Rosa , Sergio Jimenez , Raquel Fuentetaja , Daniel Borrajo

Conventional application of convolutional neural networks (CNNs) for image classification and recognition is based on the assumption that all target classes are equal(i.e., no hierarchy) and exclusive of one another (i.e., no overlap).…

机器学习 · 计算机科学 2019-06-04 Jaehoon Cha , Kyeong Soo Kim , Sanghyuk Lee

Recently, hashing methods have been widely used in large-scale image retrieval. However, most existing hashing methods did not consider the hierarchical relation of labels, which means that they ignored the rich information stored in the…

计算机视觉与模式识别 · 计算机科学 2017-09-13 Dan Wang , Heyan Huang , Chi Lu , Bo-Si Feng , Liqiang Nie , Guihua Wen , Xian-Ling Mao

Hierarchical text classification, which aims to classify text documents into a given hierarchy, is an important task in many real-world applications. Recently, deep neural models are gaining increasing popularity for text classification due…

计算与语言 · 计算机科学 2019-01-01 Yu Meng , Jiaming Shen , Chao Zhang , Jiawei Han

Reduced-rank decompositions provide descriptions of the variation among the elements of a matrix or array. In such decompositions, the elements of an array are expressed as products of low-dimensional latent factors. This article presents a…

统计方法学 · 统计学 2010-06-01 Peter Hoff

This work proposes a novel approach to the deep hierarchical classification task, i.e., the problem of classifying data according to multiple labels organized in a rigid parent-child structure. It consists in a multi-output deep neural…

人工智能 · 计算机科学 2024-10-07 Lorenzo Fiaschi , Marco Cococcioni

Hierarchical multi-label classification (HMC) is a challenging classification task extending standard multi-label classification problems by imposing a hierarchy constraint on the classes. In this paper, we propose C-HMCNN(h), a novel…

机器学习 · 计算机科学 2021-11-29 Eleonora Giunchiglia , Thomas Lukasiewicz

Deep neural networks are susceptible to label noise. Existing methods to improve robustness, such as meta-learning and regularization, usually require significant change to the network architecture or careful tuning of the optimization…

机器学习 · 计算机科学 2022-05-31 Li Chen , Ningyuan Huang , Cong Mu , Hayden S. Helm , Kate Lytvynets , Weiwei Yang , Carey E. Priebe

Traditionally, classifying large hierarchical labels with more than 10000 distinct traces can only be achieved with flatten labels. Although flatten labels is feasible, it misses the hierarchical information in the labels. Hierarchical…

机器学习 · 计算机科学 2018-01-15 Zhenzhou Wu , Sean Saito

The Hierarchical Inference (HI) paradigm employs a tiered processing: the inference from simple data samples are accepted at the end device, while complex data samples are offloaded to the central servers. HI has recently emerged as an…

分布式、并行与集群计算 · 计算机科学 2024-06-17 Adarsh Prasad Behera , Roberto Morabito , Joerg Widmer , Jaya Prakash Champati

Hierarchical taxonomies are common in many contexts, and they are a very natural structure humans use to organise information. In machine learning, the family of methods that use the 'extra' information is called hierarchical…

机器学习 · 计算机科学 2024-02-01 Ines Nolasco , Dan Stowell

The performance of approaches to Music Instrument Classification, a popular task in Music Information Retrieval, is often impacted and limited by the lack of availability of annotated data for training. We propose to address this issue with…

声音 · 计算机科学 2022-11-16 Hsin-Hung Chen , Alexander Lerch

Set-valued prediction is a well-known concept in multi-class classification. When a classifier is uncertain about the class label for a test instance, it can predict a set of classes instead of a single class. In this paper, we focus on…

机器学习 · 计算机科学 2022-03-15 Thomas Mortier , Eyke Hüllermeier , Krzysztof Dembczyński , Willem Waegeman

Many important classification problems in the real-world consist of a large number of closely related categories in a hierarchical structure or taxonomy. Hierarchical multi-label text classification (HMTC) with higher accuracy over large…

计算与语言 · 计算机科学 2022-04-19 Pengfei Gao , Jingpeng Zhao , Yinglong Ma , Ahmad Tanvir , Beihong Jin

Federated learning (FL) is a well established method for performing machine learning tasks over massively distributed data. However in settings where data is distributed in a non-iid (not independent and identically distributed) fashion --…

机器学习 · 计算机科学 2020-05-07 Christopher Briggs , Zhong Fan , Peter Andras

Hierarchical forecasting is a key problem in many practical multivariate forecasting applications - the goal is to simultaneously predict a large number of correlated time series that are arranged in a pre-specified aggregation hierarchy.…

机器学习 · 计算机科学 2021-10-13 Biswajit Paria , Rajat Sen , Amr Ahmed , Abhimanyu Das