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Consider semi-supervised learning for classification, where both labeled and unlabeled data are available for training. The goal is to exploit both datasets to achieve higher prediction accuracy than just using labeled data alone. We…

Machine Learning · Statistics 2019-06-20 Xinwei Zhang , Zhiqiang Tan

We present a supervised learning to rank algorithm that effectively orders images by exploiting the structure in image sequences. Most often in the supervised learning to rank literature, ranking is approached either by analyzing pairs of…

Computer Vision and Pattern Recognition · Computer Science 2015-12-01 Basura Fernando , Efstratios Gavves , Damien Muselet , Tinne Tuytelaars

Providing technologies to communities or domains where training data is scarce or protected e.g., for privacy reasons, is becoming increasingly important. To that end, we generalise methods for unsupervised transfer from multiple input…

Computation and Language · Computer Science 2021-10-11 Kemal Kurniawan , Lea Frermann , Philip Schulz , Trevor Cohn

Sequence-to-sequence automatic speech recognition (ASR) models require large quantities of data to attain high performance. For this reason, there has been a recent surge in interest for unsupervised and semi-supervised training in such…

Audio and Speech Processing · Electrical Eng. & Systems 2019-08-21 Murali Karthick Baskar , Shinji Watanabe , Ramon Astudillo , Takaaki Hori , Lukáš Burget , Jan Černocký

Anomaly detection is being regarded as an unsupervised learning task as anomalies stem from adversarial or unlikely events with unknown distributions. However, the predictive performance of purely unsupervised anomaly detection often fails…

Machine Learning · Computer Science 2014-01-27 Nico Goernitz , Marius Micha Kloft , Konrad Rieck , Ulf Brefeld

We present a system comprising a hybridization of self-organized map (SOM) properties with spiking neural networks (SNNs) that retain many of the features of SOMs. Networks are trained in an unsupervised manner to learn a self-organized…

Neural and Evolutionary Computing · Computer Science 2019-03-27 Hananel Hazan , Daniel J. Saunders , Darpan T. Sanghavi , Hava T. Siegelmann , Robert Kozma

Deep learning-based recommender systems have achieved remarkable success in recent years. However, these methods usually heavily rely on labeled data (i.e., user-item interactions), suffering from problems such as data sparsity and…

Information Retrieval · Computer Science 2023-10-12 Mengyuan Jing , Yanmin Zhu , Tianzi Zang , Ke Wang

In this paper, we presented a novel semi-supervised one-class classification algorithm which assumes that class is linearly separable from other elements. We proved theoretically that class is linearly separable if and only if it is maximal…

Machine Learning · Statistics 2017-05-03 Evgeny Bauman , Konstantin Bauman

Semi-supervised learning is a promising way to reduce the annotation cost for text-classification. Combining with pre-trained language models (PLMs), e.g., BERT, recent semi-supervised learning methods achieved impressive performance. In…

Computation and Language · Computer Science 2022-05-23 Hai-Ming Xu , Lingqiao Liu , Ehsan Abbasnejad

Self-training, a semi-supervised learning algorithm, leverages a large amount of unlabeled data to improve learning when the labeled data are limited. Despite empirical successes, its theoretical characterization remains elusive. To the…

Machine Learning · Computer Science 2022-02-15 Shuai Zhang , Meng Wang , Sijia Liu , Pin-Yu Chen , Jinjun Xiong

We address for the first time unsupervised training for a translation task with hundreds of thousands of vocabulary words. We scale up the expectation-maximization (EM) algorithm to learn a large translation table without any parallel text…

Computation and Language · Computer Science 2019-01-08 Yunsu Kim , Julian Schamper , Hermann Ney

In this work, we investigate unsupervised representation learning on medical time series, which bears the promise of leveraging copious amounts of existing unlabeled data in order to eventually assist clinical decision making. By evaluating…

Machine Learning · Computer Science 2018-12-04 Xinrui Lyu , Matthias Hueser , Stephanie L. Hyland , George Zerveas , Gunnar Raetsch

BERT is inefficient for sentence-pair tasks such as clustering or semantic search as it needs to evaluate combinatorially many sentence pairs which is very time-consuming. Sentence BERT (SBERT) attempted to solve this challenge by learning…

Computation and Language · Computer Science 2021-02-08 Yan Zhang , Ruidan He , Zuozhu Liu , Kwan Hui Lim , Lidong Bing

We present a novel incremental learning approach for unsupervised word segmentation that combines features from probabilistic modeling and model selection. This includes super-additive penalties for addressing the cognitive burden imposed…

Computation and Language · Computer Science 2016-09-26 Ruey-Cheng Chen

We introduce a semi-supervised discrete choice model to calibrate discrete choice models when relatively few requests have both choice sets and stated preferences but the majority only have the choice sets. Two classic semi-supervised…

Machine Learning · Statistics 2017-02-20 Jie Yang , Sergey Shebalov , Diego Klabjan

Speech recognition technologies are gaining enormous popularity in various industrial applications. However, building a good speech recognition system usually requires large amounts of transcribed data, which is expensive to collect. To…

Computation and Language · Computer Science 2019-11-01 Dongwei Jiang , Xiaoning Lei , Wubo Li , Ne Luo , Yuxuan Hu , Wei Zou , Xiangang Li

Semi-supervised learning deals with the problem of how, if possible, to take advantage of a huge amount of unclassified data, to perform a classification in situations when, typically, there is little labeled data. Even though this is not…

Machine Learning · Statistics 2020-12-11 Alejandro Cholaquidis , Ricardo Fraiman , Mariela Sued

Unsupervised summarization is a powerful technique that enables training summarizing models without requiring labeled datasets. This survey covers different recent techniques and models used for unsupervised summarization. We cover…

Computation and Language · Computer Science 2024-09-27 Mohammad Khosravani , Amine Trabelsi

In this paper we propose the Structured Deep Neural Network (Structured DNN) as a structured and deep learning algorithm, learning to find the best structured object (such as a label sequence) given a structured input (such as a vector…

Machine Learning · Computer Science 2015-06-04 Yi-Hsiu Liao , Hung-Yi Lee , Lin-shan Lee

We present a scalable approach for semi-supervised learning on graph-structured data that is based on an efficient variant of convolutional neural networks which operate directly on graphs. We motivate the choice of our convolutional…

Machine Learning · Computer Science 2017-02-23 Thomas N. Kipf , Max Welling