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In this work, we explore the way to perform named entity recognition (NER) using only unlabeled data and named entity dictionaries. To this end, we formulate the task as a positive-unlabeled (PU) learning problem and accordingly propose a…

计算与语言 · 计算机科学 2019-06-12 Minlong Peng , Xiaoyu Xing , Qi Zhang , Jinlan Fu , Xuanjing Huang

The theory of representation learning aims to build methods that provably invert the data generating process with minimal domain knowledge or any source of supervision. Most prior approaches require strong distributional assumptions on the…

机器学习 · 计算机科学 2022-06-03 Kartik Ahuja , Jason Hartford , Yoshua Bengio

Traditional language models are unable to efficiently model entity names observed in text. All but the most popular named entities appear infrequently in text providing insufficient context. Recent efforts have recognized that context can…

计算与语言 · 计算机科学 2019-06-25 Angli Liu , Jingfei Du , Veselin Stoyanov

Active learning methods, like uncertainty sampling, combined with probabilistic prediction techniques have achieved success in various problems like image classification and text classification. For more complex multivariate prediction…

机器学习 · 计算机科学 2020-03-24 Sima Behpour

Humans excel in continuously learning with small data without forgetting how to solve old problems. However, neural networks require large datasets to compute latent representations across different tasks while minimizing a loss function.…

机器学习 · 计算机科学 2019-11-21 Omar U. Florez , Erik Mueller

Currently, machine learning techniques have seen significant success across various applications. Most of these techniques rely on supervision from human-generated labels or a mixture of noisy and imprecise labels from multiple sources.…

计算与语言 · 计算机科学 2024-09-04 Yanbo Wang , Wenyu Chen , Shimin Shan

Extracting structured knowledge from texts has traditionally been used for knowledge base generation. However, other sources of information, such as images can be leveraged into this process to build more complete and richer knowledge…

计算机视觉与模式识别 · 计算机科学 2020-09-15 Ashutosh Tiwari , Sandeep Varma

Entity representations are useful in natural language tasks involving entities. In this paper, we propose new pretrained contextualized representations of words and entities based on the bidirectional transformer. The proposed model treats…

计算与语言 · 计算机科学 2020-10-05 Ikuya Yamada , Akari Asai , Hiroyuki Shindo , Hideaki Takeda , Yuji Matsumoto

Entity linking involves aligning textual mentions of named entities to their corresponding entries in a knowledge base. Entity linking systems often exploit relations between textual mentions in a document (e.g., coreference) to decide if…

计算与语言 · 计算机科学 2018-05-01 Phong Le , Ivan Titov

In this paper, we work on a sound recognition system that continually incorporates new sound classes. Our main goal is to develop a framework where the model can be updated without relying on labeled data. For this purpose, we propose…

音频与语音处理 · 电气工程与系统科学 2023-01-11 Zhepei Wang , Cem Subakan , Xilin Jiang , Junkai Wu , Efthymios Tzinis , Mirco Ravanelli , Paris Smaragdis

Understanding a long document requires tracking how entities are introduced and evolve over time. We present a new type of language model, EntityNLM, that can explicitly model entities, dynamically update their representations, and…

计算与语言 · 计算机科学 2017-08-03 Yangfeng Ji , Chenhao Tan , Sebastian Martschat , Yejin Choi , Noah A. Smith

Learning vector representation for words is an important research field which may benefit many natural language processing tasks. Two limitations exist in nearly all available models, which are the bias caused by the context definition and…

计算与语言 · 计算机科学 2015-06-01 Xuefeng Yang , Kezhi Mao

We address the problem of learning a distributed representation of entities in a relational database using a low-dimensional embedding. Low-dimensional embeddings aim to encapsulate a concise vector representation for an underlying dataset…

数据库 · 计算机科学 2020-05-14 Siddhant Arora , Srikanta Bedathur

Interpretability benefits the theoretical understanding of representations. Existing word embeddings are generally dense representations. Hence, the meaning of latent dimensions is difficult to interpret. This makes word embeddings like a…

计算与语言 · 计算机科学 2023-06-27 Minxue Xia , Hao Zhu

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…

计算与语言 · 计算机科学 2024-04-09 Yilin Wang , Xinyi Hu , Matthew R. Gormley

We develop methods for detector learning which exploit joint training over both weak and strong labels and which transfer learned perceptual representations from strongly-labeled auxiliary tasks. Previous methods for weak-label learning…

计算机视觉与模式识别 · 计算机科学 2017-11-10 Judy Hoffman , Deepak Pathak , Trevor Darrell , Kate Saenko

This paper proposes an unsupervised method for learning a unified representation that serves both discriminative and generative purposes. While most existing unsupervised learning approaches focus on a representation for only one of these…

计算机视觉与模式识别 · 计算机科学 2022-11-01 Shengbang Tong , Xili Dai , Yubei Chen , Mingyang Li , Zengyi Li , Brent Yi , Yann LeCun , Yi Ma

Performing machine learning on structured data is complicated by the fact that such data does not have vectorial form. Therefore, multiple approaches have emerged to construct vectorial representations of structured data, from kernel and…

机器学习 · 计算机科学 2019-05-16 Benjamin Paaßen , Claudio Gallicchio , Alessio Micheli , Alessandro Sperduti

Learning interpretable and disentangled representations is a crucial yet challenging task in representation learning. In this work, we focus on semi-supervised disentanglement learning and extend work by Locatello et al. (2019) by…

机器学习 · 计算机科学 2020-06-24 Weili Nie , Zichao Wang , Ankit B. Patel , Richard G. Baraniuk

Capturing contextual dependencies has proven useful to improve the representational power of deep neural networks. Recent approaches that focus on modeling global context, such as self-attention and non-local operation, achieve this goal by…

计算机视觉与模式识别 · 计算机科学 2021-06-15 Shenao Zhang , Li Shen , Zhifeng Li , Wei Liu