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Thanks to breakthroughs in AI and Deep learning methodology, Computer vision techniques are rapidly improving. Most computer vision applications require sophisticated image segmentation to comprehend what is image and to make an analysis of…

Machine Learning · Computer Science 2023-02-07 Lichun Gao , Chinmaya Khamesra , Uday Kumbhar , Ashay Aglawe

Metric learning seeks a transformation of the feature space that enhances prediction quality for the given task at hand. In this work we provide PAC-style sample complexity rates for supervised metric learning. We give matching lower- and…

Machine Learning · Computer Science 2015-05-12 Nakul Verma , Kristin Branson

Self-Supervised Learning is vastly used to efficiently represent speech for Spoken Language Understanding, gradually replacing conventional approaches. Meanwhile, textual SSL models are proposed to encode language-agnostic semantics.…

Computation and Language · Computer Science 2024-06-19 Gaëlle Laperrière , Sahar Ghannay , Bassam Jabaian , Yannick Estève

Measuring sentence semantic similarity using pre-trained language models such as BERT generally yields unsatisfactory zero-shot performance, and one main reason is ineffective token aggregation methods such as mean pooling. In this paper,…

Computation and Language · Computer Science 2020-10-23 M. Li , H. Bai , L. Tan , K. Xiong , M. Li , J. Lin

Semi-supervised multi-label learning (SSMLL) is a powerful framework for leveraging unlabeled data to reduce the expensive cost of collecting precise multi-label annotations. Unlike semi-supervised learning, one cannot select the most…

Machine Learning · Computer Science 2024-12-30 Jia-Hao Xiao , Ming-Kun Xie , Heng-Bo Fan , Gang Niu , Masashi Sugiyama , Sheng-Jun Huang

While the celebrated Word2Vec technique yields semantically rich representations for individual words, there has been relatively less success in extending to generate unsupervised sentences or documents embeddings. Recent work has…

Computation and Language · Computer Science 2018-11-06 Lingfei Wu , Ian E. H. Yen , Kun Xu , Fangli Xu , Avinash Balakrishnan , Pin-Yu Chen , Pradeep Ravikumar , Michael J. Witbrock

Until recently, the number of public real-world text images was insufficient for training scene text recognizers. Therefore, most modern training methods rely on synthetic data and operate in a fully supervised manner. Nevertheless, the…

Computer Vision and Pattern Recognition · Computer Science 2022-05-10 Aviad Aberdam , Roy Ganz , Shai Mazor , Ron Litman

This paper proposes an approach to cross-language sentence selection in a low-resource setting. It uses data augmentation and negative sampling techniques on noisy parallel sentence data to directly learn a cross-lingual embedding-based…

Computation and Language · Computer Science 2021-06-07 Yanda Chen , Chris Kedzie , Suraj Nair , Petra Galuščáková , Rui Zhang , Douglas W. Oard , Kathleen McKeown

We introduce a novel method for multilingual transfer that utilizes deep contextual embeddings, pretrained in an unsupervised fashion. While contextual embeddings have been shown to yield richer representations of meaning compared to their…

Computation and Language · Computer Science 2019-04-05 Tal Schuster , Ori Ram , Regina Barzilay , Amir Globerson

To obtain extensive annotated data for under-resourced languages is challenging, so in this research, we have investigated whether it is beneficial to train models using multi-task learning. Sentiment analysis and offensive language…

Metric learning has the aim to improve classification accuracy by learning a distance measure which brings data points from the same class closer together and pushes data points from different classes further apart. Recent research has…

Machine Learning · Computer Science 2018-07-17 Benjamin Paaßen , Claudio Gallicchio , Alessio Micheli , Barbara Hammer

Distance Metric Learning (DML) seeks to learn a discriminative embedding where similar examples are closer, and dissimilar examples are apart. In this paper, we address the problem of Semi-Supervised DML (SSDML) that tries to learn a metric…

Machine Learning · Computer Science 2021-05-12 Ujjal Kr Dutta , Mehrtash Harandi , Chellu Chandra Sekhar

Although all-in-one-model multilingual neural machine translation (multilingual NMT) has achieved remarkable progress, the convergence inconsistency in the joint training is ignored, i.e., different language pairs reaching convergence in…

Computation and Language · Computer Science 2022-10-20 Yichong Huang , Xiaocheng Feng , Xinwei Geng , Bing Qin

Learning what to share between tasks has been a topic of great importance recently, as strategic sharing of knowledge has been shown to improve downstream task performance. This is particularly important for multilingual applications, as…

Computation and Language · Computer Science 2020-10-06 Farhad Nooralahzadeh , Giannis Bekoulis , Johannes Bjerva , Isabelle Augenstein

Semantic matching of natural language sentences or identifying the relationship between two sentences is a core research problem underlying many natural language tasks. Depending on whether training data is available, prior research has…

Computation and Language · Computer Science 2018-03-02 Bang Liu , Ting Zhang , Fred X. Han , Di Niu , Kunfeng Lai , Yu Xu

Large language models (LLMs) have excelled in various NLP tasks, including machine translation (MT), yet most studies focus on sentence-level translation. This work investigates the inherent capability of instruction-tuned LLMs for…

Computation and Language · Computer Science 2025-04-22 Yirong Sun , Dawei Zhu , Yanjun Chen , Erjia Xiao , Xinghao Chen , Xiaoyu Shen

We review motivations, definition, approaches, and methodology for unsupervised cross-lingual learning and call for a more rigorous position in each of them. An existing rationale for such research is based on the lack of parallel data for…

Computation and Language · Computer Science 2021-12-28 Mikel Artetxe , Sebastian Ruder , Dani Yogatama , Gorka Labaka , Eneko Agirre

Supervised learning techniques are at the center of many tasks in remote sensing. Unfortunately, these methods, especially recent deep learning methods, often require large amounts of labeled data for training. Even though satellites…

Machine Learning · Computer Science 2021-08-03 Pablo Gómez , Gabriele Meoni

As alignment links are not given between English sentences and Abstract Meaning Representation (AMR) graphs in the AMR annotation, automatic alignment becomes indispensable for training an AMR parser. Previous studies formalize it as a…

Computation and Language · Computer Science 2017-02-21 Chenhui Chu , Sadao Kurohashi

Many supervised learning tasks are emerged in dual forms, e.g., English-to-French translation vs. French-to-English translation, speech recognition vs. text to speech, and image classification vs. image generation. Two dual tasks have…

Machine Learning · Computer Science 2017-07-04 Yingce Xia , Tao Qin , Wei Chen , Jiang Bian , Nenghai Yu , Tie-Yan Liu
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