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One of the prevalent learning tasks involving images is content-based image classification. This is a difficult task especially because the low-level features used to digitally describe images usually capture little information about the…

Computer Vision and Pattern Recognition · Computer Science 2015-12-16 Marian-Andrei Rizoiu , Julien Velcin , Stéphane Lallich

Academic paper search is an essential task for efficient literature discovery and scientific advancement. While dense retrieval has advanced various ad-hoc searches, it often struggles to match the underlying academic concepts between…

Information Retrieval · Computer Science 2024-10-28 SeongKu Kang , Yunyi Zhang , Pengcheng Jiang , Dongha Lee , Jiawei Han , Hwanjo Yu

The problem of detecting whether a test sample is from in-distribution (i.e., training distribution by a classifier) or out-of-distribution sufficiently different from it arises in many real-world machine learning applications. However, the…

Machine Learning · Statistics 2018-02-27 Kimin Lee , Honglak Lee , Kibok Lee , Jinwoo Shin

Semantic segmentation necessitates approaches that learn high-level characteristics while dealing with enormous amounts of data. Convolutional neural networks (CNNs) can learn unique and adaptive features to achieve this aim. However, due…

Computer Vision and Pattern Recognition · Computer Science 2023-07-19 Hasan AlMarzouqi , Lyes Saad Saoud

In real-world clinical settings, data distributions evolve over time, with a continuous influx of new, limited disease cases. Therefore, class incremental learning is of great significance, i.e., deep learning models are required to learn…

Computer Vision and Pattern Recognition · Computer Science 2024-09-13 Yifei Yao , Hanrong Zhang

Word embeddings have been widely used in sentiment classification because of their efficacy for semantic representations of words. Given reviews from different domains, some existing methods for word embeddings exploit sentiment…

Computation and Language · Computer Science 2018-05-11 Bei Shi , Zihao Fu , Lidong Bing , Wai Lam

We propose a new fast fully unsupervised method to discover semantic patterns. Our algorithm is able to hierarchically find visual categories and produce a segmentation mask where previous methods fail. Through the modeling of what is a…

Computer Vision and Pattern Recognition · Computer Science 2021-02-25 Francesco Pelosin , Andrea Gasparetto , Andrea Albarelli , Andrea Torsello

We present a novel technique for learning semantic representations, which extends the distributional hypothesis to multilingual data and joint-space embeddings. Our models leverage parallel data and learn to strongly align the embeddings of…

Computation and Language · Computer Science 2014-04-21 Karl Moritz Hermann , Phil Blunsom

In hierarchical text classification, we perform a sequence of inference steps to predict the category of a document from top to bottom of a given class taxonomy. Most of the studies have focused on developing novels neural network…

Computation and Language · Computer Science 2020-05-25 Kervy Rivas Rojas , Gina Bustamante , Arturo Oncevay , Marco A. Sobrevilla Cabezudo

Automatic Term Recognition is used to extract domain-specific terms that belong to a given domain. In order to be accurate, these corpus and language-dependent methods require large volumes of textual data that need to be processed to…

Computation and Language · Computer Science 2023-05-29 Ciprian-Octavian Truică , Neculai-Ovidiu Istrate , Elena-Simona Apostol

Semantic segmentation is a computer vision task that associates a label with each pixel in an image. Modern approaches tend to introduce class embeddings into semantic segmentation for deeply utilizing category semantics, and regard…

Computer Vision and Pattern Recognition · Computer Science 2023-08-25 Yuhe Liu , Chuanjian Liu , Kai Han , Quan Tang , Zengchang Qin

In this paper, we investigate the effectiveness of integrating a hierarchical taxonomy of labels as prior knowledge into the learning algorithm of a flat classifier. We introduce two methods to integrate the hierarchical taxonomy as an…

Machine Learning · Computer Science 2023-05-29 Mohsen Pourvali , Yao Meng , Chen Sheng , Yangzhou Du

Sentiment analysis is a key component in various text mining applications. Numerous sentiment classification techniques, including conventional and deep learning-based methods, have been proposed in the literature. In most existing methods,…

Computation and Language · Computer Science 2018-03-22 Ou Wu , Tao Yang , Mengyang Li , Ming Li

Most classification models treat different object classes in parallel and the misclassifications between any two classes are treated equally. In contrast, human beings can exploit high-level information in making a prediction of an unknown…

Computer Vision and Pattern Recognition · Computer Science 2021-04-28 Kaidong Li , Nina Y. Wang , Yiju Yang , Guanghui Wang

We develop and test a novel unsupervised algorithm for word sense induction and disambiguation which uses topological data analysis. Typical approaches to the problem involve clustering, based on simple low level features of distance in…

Computation and Language · Computer Science 2022-03-02 Michael Rawson , Samuel Dooley , Mithun Bharadwaj , Rishabh Choudhary

Distant supervision for relation extraction enables one to effectively acquire structured relations out of very large text corpora with less human efforts. Nevertheless, most of the prior-art models for such tasks assume that the given text…

Computation and Language · Computer Science 2019-09-13 Junfan Chen , Richong Zhang , Yongyi Mao , Hongyu Guo , Jie Xu

The ability to understand visual information from limited labeled data is an important aspect of machine learning. While image-level classification has been extensively studied in a semi-supervised setting, dense pixel-level classification…

Computer Vision and Pattern Recognition · Computer Science 2019-08-19 Sudhanshu Mittal , Maxim Tatarchenko , Thomas Brox

In this work, we propose a new method to integrate two recent lines of work: unsupervised induction of shallow semantics (e.g., semantic roles) and factorization of relations in text and knowledge bases. Our model consists of two…

Computation and Language · Computer Science 2015-04-17 Ivan Titov , Ehsan Khoddam

Learning representations for semantic relations is important for various tasks such as analogy detection, relational search, and relation classification. Although there have been several proposals for learning representations for individual…

Computation and Language · Computer Science 2015-05-04 Danushka Bollegala , Takanori Maehara , Ken-ichi Kawarabayashi

We present an ensemble approach for categorizing search query entities in the recruitment domain. Understanding the types of entities expressed in a search query (Company, Skill, Job Title, etc.) enables more intelligent information…

Computation and Language · Computer Science 2016-11-17 Walid Shalaby , Khalifeh Al Jadda , Mohammed Korayem , Trey Grainger