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Word-vector representations associate a high dimensional real-vector to every word from a corpus. Recently, neural-network based methods have been proposed for learning this representation from large corpora. This type of word-to-vector…

计算与语言 · 计算机科学 2017-02-21 Roberto Santana

We present Attract-Repel, an algorithm for improving the semantic quality of word vectors by injecting constraints extracted from lexical resources. Attract-Repel facilitates the use of constraints from mono- and cross-lingual resources,…

Contrastive learning has been successfully used for retrieval of semantically aligned sentences, but it often requires large batch sizes or careful engineering to work well. In this paper, we instead propose a generative model for learning…

计算与语言 · 计算机科学 2023-06-06 John Wieting , Jonathan H. Clark , William W. Cohen , Graham Neubig , Taylor Berg-Kirkpatrick

Bilingual Lexicon Induction is the task of learning word translations without bilingual parallel corpora. We model this task as a matrix completion problem, and present an effective and extendable framework for completing the matrix. This…

计算与语言 · 计算机科学 2024-06-21 Derry Wijaya , Brendan Callahan , John Hewitt , Jie Gao , Xiao Ling , Marianna Apidianaki , Chris Callison-Burch

Distributional semantics models are known to struggle with small data. It is generally accepted that in order to learn 'a good vector' for a word, a model must have sufficient examples of its usage. This contradicts the fact that humans can…

计算与语言 · 计算机科学 2017-07-21 Aurelie Herbelot , Marco Baroni

Multilingual sentence representations pose a great advantage for low-resource languages that do not have enough data to build monolingual models on their own. These multilingual sentence representations have been separately exploited by few…

计算与语言 · 计算机科学 2021-06-15 Dilan Sachintha , Lakmali Piyarathna , Charith Rajitha , Surangika Ranathunga

The notion of word embedding plays a fundamental role in natural language processing (NLP). However, pre-training word embedding for very large-scale vocabulary is computationally challenging for most existing methods. In this work, we show…

计算与语言 · 计算机科学 2021-09-16 Junsheng Kong , Weizhao Li , Zeyi Liu , Ben Liao , Jiezhong Qiu , Chang-Yu Hsieh , Yi Cai , Shengyu Zhang

Previous works have shown that contextual information can improve the performance of neural machine translation (NMT). However, most existing document-level NMT methods only consider a few number of previous sentences. How to make use of…

计算与语言 · 计算机科学 2021-09-15 Mingzhou Xu , Liangyou Li , Derek. F. Wong , Qun Liu , Lidia S. Chao

Transition-based and graph-based dependency parsers have previously been shown to have complementary strengths and weaknesses: transition-based parsers exploit rich structural features but suffer from error propagation, while graph-based…

计算与语言 · 计算机科学 2019-08-28 Artur Kulmizev , Miryam de Lhoneux , Johannes Gontrum , Elena Fano , Joakim Nivre

Representation learning has recently been successfully used to create vector representations of entities in language learning, recommender systems and in similarity learning. Graph embeddings exploit the locality structure of a graph and…

机器学习 · 计算机科学 2020-02-24 Shalin Shah , Venkataramana Kini

Distributional semantics creates vector-space representations that capture many forms of semantic similarity, but their relation to semantic entailment has been less clear. We propose a vector-space model which provides a formal foundation…

计算与语言 · 计算机科学 2016-07-14 James Henderson , Diana Nicoleta Popa

Data-driven representation learning for words is a technique of central importance in NLP. While indisputably useful as a source of features in downstream tasks, such vectors tend to consist of uninterpretable components whose relationship…

计算与语言 · 计算机科学 2015-06-18 Manaal Faruqui , Chris Dyer

In this paper we propose the application of feature hashing to create word embeddings for natural language processing. Feature hashing has been used successfully to create document vectors in related tasks like document classification. In…

计算与语言 · 计算机科学 2017-04-18 Luis Argerich , Joaquín Torré Zaffaroni , Matías J Cano

Despite excellent results on benchmarks over a small subset of languages, large language models struggle to process text from languages situated in `lower-resource' scenarios such as dialects/sociolects (national or social varieties of a…

计算与语言 · 计算机科学 2024-09-20 Aditya Joshi , Diptesh Kanojia , Heather Lent , Hour Kaing , Haiyue Song

Distributed dense word vectors have been shown to be effective at capturing token-level semantic and syntactic regularities in language, while topic models can form interpretable representations over documents. In this work, we describe…

计算与语言 · 计算机科学 2016-05-09 Christopher E Moody

We present a simple method to improve neural translation of a low-resource language pair using parallel data from a related, also low-resource, language pair. The method is based on the transfer method of Zoph et al., but whereas their…

计算与语言 · 计算机科学 2017-09-22 Toan Q. Nguyen , David Chiang

Sentence embeddings encode natural language sentences as low-dimensional dense vectors. A great deal of effort has been put into using sentence embeddings to improve several important natural language processing tasks. Relation extraction…

计算与语言 · 计算机科学 2020-09-24 Alexander Kalinowski , Yuan An

Graph-based semantic representations are valuable in natural language processing, where it is often simple and effective to represent linguistic concepts as nodes, and relations as edges between them. Several attempts has been made to find…

形式语言与自动机理论 · 计算机科学 2021-05-10 Johanna Björklund , Frank Drewes , Anna Jonsson

Knowledge Graphs, such as Wikidata, comprise structural and textual knowledge in order to represent knowledge. For each of the two modalities dedicated approaches for graph embedding and language models learn patterns that allow for…

The classification of short texts is a common subtask in Information Retrieval (IR). Recent advances in graph machine learning have led to interest in graph-based approaches for low resource scenarios, showing promise in such settings.…

信息检索 · 计算机科学 2024-12-18 Gregor Donabauer , Udo Kruschwitz