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The ability to learn from large unlabeled corpora has allowed neural language models to advance the frontier in natural language understanding. However, existing self-supervision techniques operate at the word form level, which serves as a…

计算与语言 · 计算机科学 2020-05-19 Yoav Levine , Barak Lenz , Or Dagan , Ori Ram , Dan Padnos , Or Sharir , Shai Shalev-Shwartz , Amnon Shashua , Yoav Shoham

Self-supervised learning in vision-language processing exploits semantic alignment between imaging and text modalities. Prior work in biomedical VLP has mostly relied on the alignment of single image and report pairs even though clinical…

Distributional models are derived from co-occurrences in a corpus, where only a small proportion of all possible plausible co-occurrences will be observed. This results in a very sparse vector space, requiring a mechanism for inferring…

计算与语言 · 计算机科学 2016-08-25 Thomas Kober , Julie Weeds , Jeremy Reffin , David Weir

Semantic sentence embedding models encode natural language sentences into vectors, such that closeness in embedding space indicates closeness in the semantics between the sentences. Bilingual data offers a useful signal for learning such…

计算与语言 · 计算机科学 2020-11-20 John Wieting , Graham Neubig , Taylor Berg-Kirkpatrick

Current language models have a significant limitation in the ability to encode and decode factual knowledge. This is mainly because they acquire such knowledge from statistical co-occurrences although most of the knowledge words are rarely…

计算与语言 · 计算机科学 2017-03-03 Sungjin Ahn , Heeyoul Choi , Tanel Pärnamaa , Yoshua Bengio

In this work we propose a simple and efficient framework for learning sentence representations from unlabelled data. Drawing inspiration from the distributional hypothesis and recent work on learning sentence representations, we reformulate…

计算与语言 · 计算机科学 2018-03-09 Lajanugen Logeswaran , Honglak Lee

Neural networks are among the state-of-the-art techniques for language modeling. Existing neural language models typically map discrete words to distributed, dense vector representations. After information processing of the preceding…

计算与语言 · 计算机科学 2016-10-14 Yunchuan Chen , Lili Mou , Yan Xu , Ge Li , Zhi Jin

Deep learning natural language processing models often use vector word embeddings, such as word2vec or GloVe, to represent words. A discrete sequence of words can be much more easily integrated with downstream neural layers if it is…

机器学习 · 计算机科学 2020-03-04 Aliakbar Panahi , Seyran Saeedi , Tom Arodz

Named Entity Recognition (NER) is a fundamental task in NLP that is used to locate the key information in text and is primarily applied in conversational and search systems. In commercial applications, NER or comparable slot-filling methods…

计算与语言 · 计算机科学 2023-06-13 Maithili Sabane , Aparna Ranade , Onkar Litake , Parth Patil , Raviraj Joshi , Dipali Kadam

As the first step in automated natural language processing, representing words and sentences is of central importance and has attracted significant research attention. Different approaches, from the early one-hot and bag-of-words…

计算与语言 · 计算机科学 2019-11-06 Wenye Li , Senyue Hao

Low-dimensional embeddings are a cornerstone in the modelling and analysis of complex networks. However, most existing approaches for mining network embedding spaces rely on computationally intensive machine learning systems to facilitate…

社会与信息网络 · 计算机科学 2024-10-04 Alexandros Xenos , Noel-Malod Dognin , Natasa Przulj

Temporal word embeddings have been proposed to support the analysis of word meaning shifts during time and to study the evolution of languages. Different approaches have been proposed to generate vector representations of words that embed…

计算与语言 · 计算机科学 2019-06-07 Valerio Di Carlo , Federico Bianchi , Matteo Palmonari

Previous studies have shown that linguistic features of a word such as possession, genitive or other grammatical cases can be employed in word representations of a named entity recognition (NER) tagger to improve the performance for…

计算与语言 · 计算机科学 2019-11-12 Onur Güngör , Suzan Üsküdarlı , Tunga Güngör

We propose a methodology that adapts graph embedding techniques (DeepWalk (Perozzi et al., 2014) and node2vec (Grover and Leskovec, 2016)) as well as cross-lingual vector space mapping approaches (Least Squares and Canonical Correlation…

计算与语言 · 计算机科学 2017-07-25 Victor Prokhorov , Mohammad Taher Pilehvar , Dimitri Kartsaklis , Pietro Lió , Nigel Collier

Word vector specialisation (also known as retrofitting) is a portable, light-weight approach to fine-tuning arbitrary distributional word vector spaces by injecting external knowledge from rich lexical resources such as WordNet. By design,…

计算与语言 · 计算机科学 2018-05-10 Ivan Vulić , Goran Glavaš , Nikola Mrkšić , Anna Korhonen

A lot of work has been done to build text-based language models for performing different NLP tasks, but not much research has been done in the case of audio-based language models. This paper proposes a Convolutional Autoencoder based neural…

计算与语言 · 计算机科学 2020-09-30 Prakamya Mishra , Pranav Mathur

Recent work in learning vector-space embeddings for multi-relational data has focused on combining relational information derived from knowledge bases with distributional information derived from large text corpora. We propose a simple…

计算与语言 · 计算机科学 2016-05-19 Teng Long , Ryan Lowe , Jackie Chi Kit Cheung , Doina Precup

Named entity recognition (NER) is highly sensitive to sentential syntactic and semantic properties where entities may be extracted according to how they are used and placed in the running text. To model such properties, one could rely on…

计算与语言 · 计算机科学 2020-10-30 Yuyang Nie , Yuanhe Tian , Yan Song , Xiang Ao , Xiang Wan

Background: Identifying relationships between clinical events and temporal expressions is a key challenge in meaningfully analyzing clinical text for use in advanced AI applications. While previous studies exist, the state-of-the-art…

计算与语言 · 计算机科学 2020-04-15 Hong Guan , Jianfu Li , Hua Xu , Murthy Devarakonda

Named Entity Recognition (NER) is a machine learning task that traditionally relies on supervised learning and annotated data. Acquiring such data is often a challenge, particularly in specialized fields like medical, legal, and financial…

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