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A key principle in assessing textual similarity is measuring the degree of semantic overlap between two texts by considering the word alignment. Such alignment-based approaches are intuitive and interpretable; however, they are empirically…

计算与语言 · 计算机科学 2020-11-17 Sho Yokoi , Ryo Takahashi , Reina Akama , Jun Suzuki , Kentaro Inui

Recently, doc2vec has achieved excellent results in different tasks. In this paper, we present a context aware variant of doc2vec. We introduce a novel weight estimating mechanism that generates weights for each word occurrence according to…

计算与语言 · 计算机科学 2017-07-07 Zhaocheng Zhu , Junfeng Hu

This work presents a new and simple approach for fine-tuning pretrained word embeddings for text classification tasks. In this approach, the class in which a term appears, acts as an additional contextual variable during the fine tuning…

计算与语言 · 计算机科学 2019-12-17 Amr Al-Khatib , Samhaa R. El-Beltagy

Nowadays, search engine users commonly rely on query suggestions to improve their initial inputs. Current systems are very good at recommending lexical adaptations or spelling corrections to users' queries. However, they often struggle to…

信息检索 · 计算机科学 2023-01-24 Jorge Gabín , M. Eduardo Ares , Javier Parapar

Word embedding, which encodes words into vectors, is an important starting point in natural language processing and commonly used in many text-based machine learning tasks. However, in most current word embedding approaches, the similarity…

计算与语言 · 计算机科学 2018-12-27 Denis Sedov , Zhirong Yang

Universal multimodal embedding models are foundational to various tasks. Existing approaches typically employ in-batch negative mining by measuring the similarity of query-candidate pairs. However, these methods often struggle to capture…

计算机视觉与模式识别 · 计算机科学 2025-12-09 Tiancheng Gu , Kaicheng Yang , Kaichen Zhang , Xiang An , Ziyong Feng , Yueyi Zhang , Weidong Cai , Jiankang Deng , Lidong Bing

A promising approach for knowledge-based Word Sense Disambiguation (WSD) is to select the sense whose contextualized embeddings computed for its definition sentence are closest to those computed for a target word in a given sentence. This…

计算与语言 · 计算机科学 2023-04-25 Sakae Mizuki , Naoaki Okazaki

A topic model is often formulated as a generative model that explains how each word of a document is generated given a set of topics and document-specific topic proportions. It is focused on capturing the word co-occurrences in a document…

机器学习 · 计算机科学 2022-03-16 Dongsheng Wang , Dandan Guo , He Zhao , Huangjie Zheng , Korawat Tanwisuth , Bo Chen , Mingyuan Zhou

Objective: Today's neural machine translation (NMT) can achieve near human-level translation quality and greatly facilitates international communications, but the lack of parallel corpora poses a key problem to the development of…

计算与语言 · 计算机科学 2022-02-08 Shengxuan Luo , Huaiyuan Ying , Jiao Li , Sheng Yu

The surge in scientific publications challenges the use of publication counts as a measure of scientific progress, requiring alternative metrics that emphasize the quality and novelty of scientific contributions rather than sheer quantity.…

数字图书馆 · 计算机科学 2024-09-04 Luca D'Aniello , Nicolas Robinson-Garcia , Massimo Aria , Corrado Cuccurullo

Distributional semantics models derive word space from linguistic items in context. Meaning is obtained by defining a distance measure between vectors corresponding to lexical entities. Such vectors present several problems. In this paper…

计算与语言 · 计算机科学 2017-12-25 Jakub Dutkiewicz , Czesław Jędrzejek

Ensembling word embeddings to improve distributed word representations has shown good success for natural language processing tasks in recent years. These approaches either carry out straightforward mathematical operations over a set of…

计算与语言 · 计算机科学 2018-08-14 James O' Neill , Danushka Bollegala

Word sense disambiguation (WSD) is a long-standing problem in natural language processing. One significant challenge in supervised all-words WSD is to classify among senses for a majority of words that lie in the long-tail distribution. For…

计算与语言 · 计算机科学 2021-04-28 Howard Chen , Mengzhou Xia , Danqi Chen

Keyphrase extraction (KPE) automatically extracts phrases in a document that provide a concise summary of the core content, which benefits downstream information retrieval and NLP tasks. Previous state-of-the-art (SOTA) methods select…

计算与语言 · 计算机科学 2023-03-01 Linhan Zhang , Qian Chen , Wen Wang , Chong Deng , Shiliang Zhang , Bing Li , Wei Wang , Xin Cao

Efficient distributed numerical word representation models (word embeddings) combined with modern machine learning algorithms have recently yielded considerable improvement on automatic document classification tasks. However, the…

计算与语言 · 计算机科学 2018-09-07 Roger A. Stein , Patricia A. Jaques , Joao F. Valiati

We propose a novel graph visualization method leveraging random walk-based embeddings to replace costly graph-theoretical distance computations. Using word2vec-inspired embeddings, our approach captures both structural and semantic…

计算几何 · 计算机科学 2025-09-23 Minglai Yang , Reyan Ahmed

Visual-semantic embedding aims to learn a joint embedding space where related video and sentence instances are located close to each other. Most existing methods put instances in a single embedding space. However, they struggle to embed…

计算机视觉与模式识别 · 计算机科学 2023-05-31 Huy Manh Nguyen , Tomo Miyazaki , Yoshihiro Sugaya , Shinichiro Omachi

Data representation is a fundamental task in machine learning. The representation of data affects the performance of the whole machine learning system. In a long history, the representation of data is done by feature engineering, and…

计算与语言 · 计算机科学 2016-11-21 Siwei Lai

Learning sentence embeddings from dialogues has drawn increasing attention due to its low annotation cost and high domain adaptability. Conventional approaches employ the siamese-network for this task, which obtains the sentence embeddings…

计算与语言 · 计算机科学 2021-09-28 Che Liu , Rui Wang , Jinghua Liu , Jian Sun , Fei Huang , Luo Si

Word embeddings and convolutional neural networks (CNN) have attracted extensive attention in various classification tasks for Twitter, e.g. sentiment classification. However, the effect of the configuration used to train and generate the…

信息检索 · 计算机科学 2017-03-23 Xiao Yang , Craig Macdonald , Iadh Ounis