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Producing a reduced version of a source text, as in generic or focused summarization, inherently involves two distinct subtasks: deciding on targeted content and generating a coherent text conveying it. While some popular approaches address…

Computation and Language · Computer Science 2022-10-25 Aviv Slobodkin , Paul Roit , Eran Hirsch , Ori Ernst , Ido Dagan

Cross-lingual word embeddings are vector representations of words in different languages where words with similar meaning are represented by similar vectors, regardless of the language. Recent developments which construct these embeddings…

Computation and Language · Computer Science 2020-03-04 Yerai Doval , Jose Camacho-Collados , Luis Espinosa-Anke , Steven Schockaert

Although providing exceptional results for many computer vision tasks, state-of-the-art deep learning algorithms catastrophically struggle in low data scenarios. However, if data in additional modalities exist (e.g. text) this can…

Computer Vision and Pattern Recognition · Computer Science 2020-11-19 Frederik Pahde , Mihai Puscas , Tassilo Klein , Moin Nabi

Unsupervised text embedding methods, such as Skip-gram and Paragraph Vector, have been attracting increasing attention due to their simplicity, scalability, and effectiveness. However, comparing to sophisticated deep learning architectures…

Computation and Language · Computer Science 2015-08-04 Jian Tang , Meng Qu , Qiaozhu Mei

This work concerns a comparison of SVM kernel methods in text categorization tasks. In particular I define a kernel function that estimates the similarity between two objects computing by their compressed lengths. In fact, compression…

Machine Learning · Computer Science 2012-10-30 Antonio Giuliano Zippo

Recent success of large-scale pre-trained language models crucially hinge on fine-tuning them on large amounts of labeled data for the downstream task, that are typically expensive to acquire. In this work, we study self-training as one of…

Computation and Language · Computer Science 2020-06-30 Subhabrata Mukherjee , Ahmed Hassan Awadallah

Cross-lingual transfer of word embeddings aims to establish the semantic mappings among words in different languages by learning the transformation functions over the corresponding word embedding spaces. Successfully solving this problem…

Computation and Language · Computer Science 2018-09-12 Ruochen Xu , Yiming Yang , Naoki Otani , Yuexin Wu

Recently, researches have explored the graph neural network (GNN) techniques on text classification, since GNN does well in handling complex structures and preserving global information. However, previous methods based on GNN are mainly…

Computation and Language · Computer Science 2019-10-09 Lianzhe Huang , Dehong Ma , Sujian Li , Xiaodong Zhang , Houfeng WANG

Meta-learning has become a practical approach towards few-shot image classification, where "a strategy to learn a classifier" is meta-learned on labeled base classes and can be applied to tasks with novel classes. We remove the requirement…

Computer Vision and Pattern Recognition · Computer Science 2022-06-10 Han-Jia Ye , Lu Han , De-Chuan Zhan

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 report on a series of experiments with convolutional neural networks (CNN) trained on top of pre-trained word vectors for sentence-level classification tasks. We show that a simple CNN with little hyperparameter tuning and static vectors…

Computation and Language · Computer Science 2014-09-04 Yoon Kim

Word embeddings are widely used in Natural Language Processing, mainly due to their success in capturing semantic information from massive corpora. However, their creation process does not allow the different meanings of a word to be…

Computation and Language · Computer Science 2017-06-22 Massimiliano Mancini , Jose Camacho-Collados , Ignacio Iacobacci , Roberto Navigli

Conventional word embeddings represent words with fixed vectors, which are usually trained based on co-occurrence patterns among words. In doing so, however, the power of such representations is limited, where the same word might be…

Computation and Language · Computer Science 2020-01-10 Hongming Zhang , Jiaxin Bai , Yan Song , Kun Xu , Changlong Yu , Yangqiu Song , Wilfred Ng , Dong Yu

Pre-trained word embeddings encode general word semantics and lexical regularities of natural language, and have proven useful across many NLP tasks, including word sense disambiguation, machine translation, and sentiment analysis, to name…

Machine Learning · Computer Science 2021-09-22 Alejandro Moreo , Andrea Esuli , Fabrizio Sebastiani

In this paper, we study bidirectional LSTM network for the task of text classification using both supervised and semi-supervised approaches. Several prior works have suggested that either complex pretraining schemes using unsupervised…

Computation and Language · Computer Science 2020-09-10 Devendra Singh Sachan , Manzil Zaheer , Ruslan Salakhutdinov

Vector representations of sentences, trained on massive text corpora, are widely used as generic sentence embeddings across a variety of NLP problems. The learned representations are generally assumed to be continuous and real-valued,…

Computation and Language · Computer Science 2019-06-21 Dinghan Shen , Pengyu Cheng , Dhanasekar Sundararaman , Xinyuan Zhang , Qian Yang , Meng Tang , Asli Celikyilmaz , Lawrence Carin

Constrained clustering allows the training of classification models using pairwise constraints only, which are weak and relatively easy to mine, while still yielding full-supervision-level model performance. While they perform well even in…

Machine Learning · Computer Science 2023-11-28 Jann Goschenhofer , Bernd Bischl , Zsolt Kira

Most pretrained language models rely on subword tokenization, which processes text as a sequence of subword tokens. However, different granularities of text, such as characters, subwords, and words, can contain different kinds of…

Computation and Language · Computer Science 2024-04-09 Yilin Wang , Xinyi Hu , Matthew R. Gormley

Cross-lingual text classification leverages text classifiers trained in a high-resource language to perform text classification in other languages with no or minimal fine-tuning (zero/few-shots cross-lingual transfer). Nowadays,…

Computation and Language · Computer Science 2023-06-09 Inigo Jauregi Unanue , Gholamreza Haffari , Massimo Piccardi

Single image-level annotations only correctly describe an often small subset of an image's content, particularly when complex real-world scenes are depicted. While this might be acceptable in many classification scenarios, it poses a…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Markus Hiller , Rongkai Ma , Mehrtash Harandi , Tom Drummond