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Populating ontology graphs represents a long-standing problem for the Semantic Web community. Recent advances in translation-based graph embedding methods for populating instance-level knowledge graphs lead to promising new approaching for…

Artificial Intelligence · Computer Science 2018-09-10 Muhao Chen , Yingtao Tian , Xuelu Chen , Zijun Xue , Carlo Zaniolo

Semantic representations of words have been successfully extracted from unlabeled corpuses using neural network models like word2vec. These representations are generally high quality and are computationally inexpensive to train, making them…

Computation and Language · Computer Science 2019-10-24 Raj Patel , Carlotta Domeniconi

Cross-modal information retrieval aims to find heterogeneous data of various modalities from a given query of one modality. The main challenge is to map different modalities into a common semantic space, in which distance between concepts…

Information Retrieval · Computer Science 2018-02-14 Jing Yu , Yuhang Lu , Zengchang Qin , Yanbing Liu , Jianlong Tan , Li Guo , Weifeng Zhang

In recent years, we have witnessed the proliferation of large amounts of online content generated directly by users with virtually no form of external control, leading to the possible spread of misinformation. The search for effective…

Information Retrieval · Computer Science 2024-07-12 Rishabh Upadhyay , Gabriella Pasi , Marco Viviani

Word embeddings, made widely popular in 2013 with the release of word2vec, have become a mainstay of NLP engineering pipelines. Recently, with the release of BERT, word embeddings have moved from the term-based embedding space to the…

Information Retrieval · Computer Science 2022-02-17 Arthur Câmara , Claudia Hauff

BACKGROUND: In this study, we investigated the efficacy of current state-of-the-art neural sentence embedding models for semantic similarity estimation of sentences from biomedical literature. We trained different neural embedding models on…

Computation and Language · Computer Science 2021-11-01 Kathrin Blagec , Hong Xu , Asan Agibetov , Matthias Samwald

Efficient distributed numerical word representation models (word embeddings) combined with modern machine learning algorithms have recently yielded considerable improvement on automatic document classification tasks. However, the…

Computation and Language · Computer Science 2018-09-07 Roger A. Stein , Patricia A. Jaques , Joao F. Valiati

Large-scale and high-quality corpora are necessary for evaluating machine reading comprehension models on a low-resource language like Vietnamese. Besides, machine reading comprehension (MRC) for the health domain offers great potential for…

Computation and Language · Computer Science 2021-02-12 Kiet Van Nguyen , Tin Van Huynh , Duc-Vu Nguyen , Anh Gia-Tuan Nguyen , Ngan Luu-Thuy Nguyen

Self-supervised speech models have grown fast during the past few years and have proven feasible for use in various downstream tasks. Some recent work has started to look at the characteristics of these models, yet many concerns have not…

Audio and Speech Processing · Electrical Eng. & Systems 2022-12-13 Yuanchao Li , Yumnah Mohamied , Peter Bell , Catherine Lai

Word embeddings are often used in natural language processing as a means to quantify relationships between words. More generally, these same word embedding techniques can be used to quantify relationships between features. In this paper, we…

Cryptography and Security · Computer Science 2021-03-11 Aniket Chandak , Wendy Lee , Mark Stamp

Word embedding or vector representation of word holds syntactical and semantic characteristics of a word which can be an informative feature for any machine learning-based models of natural language processing. There are several deep…

Computation and Language · Computer Science 2021-05-05 Rifat Rahman

Word vector representations open up new opportunities to extract useful information from unstructured text. Defining a word as a vector made it easy for the machine learning algorithms to understand a text and extract information from. Word…

Computation and Language · Computer Science 2021-05-19 Mohammed Ibrahim , Susan Gauch , Tyler Gerth , Brandon Cox

Graph and language embedding models are becoming commonplace in large scale analyses given their ability to represent complex sparse data densely in low-dimensional space. Integrating these models' complementary relational and communicative…

Social and Information Networks · Computer Science 2022-01-19 Alexander Ruch

Network embeddings, which learn low-dimensional representations for each vertex in a large-scale network, have received considerable attention in recent years. For a wide range of applications, vertices in a network are typically…

Computation and Language · Computer Science 2018-08-30 Dinghan Shen , Xinyuan Zhang , Ricardo Henao , Lawrence Carin

Machine learning-based multi-label medical text classifications can be used to enhance the understanding of the human body and aid the need for patient care. We present a broad study on clinical natural language processing techniques to…

Information Retrieval · Computer Science 2020-04-02 Vithya Yogarajan , Jacob Montiel , Tony Smith , Bernhard Pfahringer

We introduce a novel latent vector space model that jointly learns the latent representations of words, e-commerce products and a mapping between the two without the need for explicit annotations. The power of the model lies in its ability…

Information Retrieval · Computer Science 2016-08-26 Christophe Van Gysel , Maarten de Rijke , Evangelos Kanoulas

Estimating causal treatment effects in observational settings is frequently compromised by selection bias arising from unobserved confounders. While traditional econometric methods struggle when these confounders are orthogonal to…

Artificial Intelligence · Computer Science 2026-01-06 Ahmed Dawoud , Osama El-Shamy

We present an efficient document representation learning framework, Document Vector through Corruption (Doc2VecC). Doc2VecC represents each document as a simple average of word embeddings. It ensures a representation generated as such…

Computation and Language · Computer Science 2017-07-11 Minmin Chen

Distributed representations of words have shown to be useful to improve the effectiveness of IR systems in many sub-tasks like query expansion, retrieval and ranking. Algorithms like word2vec, GloVe and others are also key factors in many…

Information Retrieval · Computer Science 2019-09-05 Tommaso Teofili , Niyati Chhaya

Introduction: Clinical text classification using natural language processing (NLP) models requires adequate training data to achieve optimal performance. For that, 200-500 documents are typically annotated. The number is constrained by time…

Computation and Language · Computer Science 2026-01-23 Jaya Chaturvedi , Saniya Deshpande , Chenkai Ma , Robert Cobb , Angus Roberts , Robert Stewart , Daniel Stahl , Diana Shamsutdinova