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The vast majority of evaluation metrics for machine translation are supervised, i.e., (i) are trained on human scores, (ii) assume the existence of reference translations, or (iii) leverage parallel data. This hinders their applicability to…

计算与语言 · 计算机科学 2024-03-05 Jonas Belouadi , Steffen Eger

Word embeddings are trained to predict word cooccurrence statistics, which leads them to possess different lexical properties (syntactic, semantic, etc.) depending on the notion of context defined at training time. These properties manifest…

计算与语言 · 计算机科学 2020-11-06 Jingyi He , KC Tsiolis , Kian Kenyon-Dean , Jackie Chi Kit Cheung

Semantic parsing is challenging due to the structure gap and the semantic gap between utterances and logical forms. In this paper, we propose an unsupervised semantic parsing method - Synchronous Semantic Decoding (SSD), which can…

计算与语言 · 计算机科学 2021-06-14 Shan Wu , Bo Chen , Chunlei Xin , Xianpei Han , Le Sun , Weipeng Zhang , Jiansong Chen , Fan Yang , Xunliang Cai

The availability of parallel sentence simplification (SS) is scarce for neural SS modelings. We propose an unsupervised method to build SS corpora from large-scale bilingual translation corpora, alleviating the need for SS supervised…

计算与语言 · 计算机科学 2021-09-02 Xinyu Lu , Jipeng Qiang , Yun Li , Yunhao Yuan , Yi Zhu

Pre-trained word embeddings are the primary method for transfer learning in several Natural Language Processing (NLP) tasks. Recent works have focused on using unsupervised techniques such as language modeling to obtain these embeddings. In…

计算与语言 · 计算机科学 2019-07-01 Mihir Kale , Aditya Siddhant , Sreyashi Nag , Radhika Parik , Matthias Grabmair , Anthony Tomasic

This paper describes a neural-network model which performed competitively (top 6) at the SemEval 2017 cross-lingual Semantic Textual Similarity (STS) task. Our system employs an attention-based recurrent neural network model that optimizes…

计算与语言 · 计算机科学 2017-03-17 Wenli Zhuang , Ernie Chang

Semantic textual similarity (STS) is a fundamental NLP task that measures the semantic similarity between a pair of sentences. In order to reduce the inherent ambiguity posed from the sentences, a recent work called Conditional STS (C-STS)…

计算与语言 · 计算机科学 2024-06-07 Jingxuan Tu , Keer Xu , Liulu Yue , Bingyang Ye , Kyeongmin Rim , James Pustejovsky

Existing methods to measure sentence similarity are faced with two challenges: (1) labeled datasets are usually limited in size, making them insufficient to train supervised neural models; (2) there is a training-test gap for unsupervised…

计算与语言 · 计算机科学 2022-02-01 Xiaofei Sun , Yuxian Meng , Xiang Ao , Fei Wu , Tianwei Zhang , Jiwei Li , Chun Fan

Semantic Textual Similarity (STS) research has expanded rapidly since 2021, driven by advances in transformer architectures, contrastive learning, and domain-specific techniques. This survey reviews progress across six key areas:…

计算与语言 · 计算机科学 2026-01-08 Lokendra Kumar , Neelesh S. Upadhye , Kannan Piedy

Sentence embeddings are commonly used in text clustering and semantic retrieval tasks. State-of-the-art sentence representation methods are based on artificial neural networks fine-tuned on large collections of manually labeled sentence…

计算与语言 · 计算机科学 2022-07-27 Sławomir Dadas

Contrastive learning has shown great potential in unsupervised sentence embedding tasks, e.g., SimCSE. However, We find that these existing solutions are heavily affected by superficial features like the length of sentences or syntactic…

计算与语言 · 计算机科学 2022-03-14 Haochen Tan , Wei Shao , Han Wu , Ke Yang , Linqi Song

While paragraph embedding models are remarkably effective for downstream classification tasks, what they learn and encode into a single vector remains opaque. In this paper, we investigate a state-of-the-art paragraph embedding method…

计算与语言 · 计算机科学 2019-06-11 Tu Vu , Mohit Iyyer

We present models for encoding sentences into embedding vectors that specifically target transfer learning to other NLP tasks. The models are efficient and result in accurate performance on diverse transfer tasks. Two variants of the…

Applications such as textual entailment, plagiarism detection or document clustering rely on the notion of semantic similarity, and are usually approached with dimension reduction techniques like LDA or with embedding-based neural…

计算与语言 · 计算机科学 2019-09-20 Ahmed Sabir , Francesc Moreno-Noguer , Lluís Padró

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…

计算与语言 · 计算机科学 2015-08-04 Jian Tang , Meng Qu , Qiaozhu Mei

Usage similarity estimation addresses the semantic proximity of word instances in different contexts. We apply contextualized (ELMo and BERT) word and sentence embeddings to this task, and propose supervised models that leverage these…

计算与语言 · 计算机科学 2019-05-22 Aina Garí Soler , Marianna Apidianaki , Alexandre Allauzen

Syntactic structure of sentences in a document substantially informs about its authorial writing style. Sentence representation learning has been widely explored in recent years and it has been shown that it improves the generalization of…

计算与语言 · 计算机科学 2022-02-25 Fereshteh Jafariakinabad , Kien A. Hua

This paper have two parts. In the first part we discuss word embeddings. We discuss the need for them, some of the methods to create them, and some of their interesting properties. We also compare them to image embeddings and see how word…

机器学习 · 计算机科学 2016-10-27 Amit Mandelbaum , Adi Shalev

Contrastive learning has been the dominant approach to train state-of-the-art sentence embeddings. Previous studies have typically learned sentence embeddings either through the use of human-annotated natural language inference (NLI) data…

计算与语言 · 计算机科学 2023-10-25 Junlei Zhang , Zhenzhong Lan , Junxian He

Sense embedding learning methods learn different embeddings for the different senses of an ambiguous word. One sense of an ambiguous word might be socially biased while its other senses remain unbiased. In comparison to the numerous prior…

计算与语言 · 计算机科学 2022-03-17 Yi Zhou , Masahiro Kaneko , Danushka Bollegala