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While word embeddings are currently predominant for natural language processing, most of existing models learn them solely from their contexts. However, these context-based word embeddings are limited since not all words' meaning can be…

计算与语言 · 计算机科学 2016-08-23 Jifan Chen , Kan Chen , Xipeng Qiu , Qi Zhang , Xuanjing Huang , Zheng Zhang

The relationship between words in a sentence often tells us more about the underlying semantic content of a document than its actual words, individually. In this work, we propose two novel algorithms, called Flexible Lexical Chain II and…

Sentiment analysis is one of the well-known tasks and fast growing research areas in natural language processing (NLP) and text classifications. This technique has become an essential part of a wide range of applications including politics,…

计算与语言 · 计算机科学 2017-11-27 Seyed Mahdi Rezaeinia , Ali Ghodsi , Rouhollah Rahmani

Graph and language embedding models are becoming commonplace in large scale analyses given their ability to represent complex sparse data densely in low-dimensional space. Integrating these models' complementary relational and communicative…

社会与信息网络 · 计算机科学 2022-01-19 Alexander Ruch

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

Dense vector representations for textual data are crucial in modern NLP. Word embeddings and sentence embeddings estimated from raw texts are key in achieving state-of-the-art results in various tasks requiring semantic understanding.…

计算与语言 · 计算机科学 2023-07-06 Sonal Sannigrahi , Josef van Genabith , Cristina Espana-Bonet

Detecting vulnerabilities within compiled binaries is challenging due to lost high-level code structures and other factors such as architectural dependencies, compilers, and optimization options. To address these obstacles, this research…

密码学与安全 · 计算机科学 2024-12-17 Gary A. McCully , John D. Hastings , Shengjie Xu , Adam Fortier

The number of scientific journal articles and reports being published about energetic materials every year is growing exponentially, and therefore extracting relevant information and actionable insights from the latest research is becoming…

计算与语言 · 计算机科学 2019-03-04 Daniel C. Elton , Dhruv Turakhia , Nischal Reddy , Zois Boukouvalas , Mark D. Fuge , Ruth M. Doherty , Peter W. Chung

A fundamental issue in machine learning is the robustness of the model with respect to changes in the input. In natural language processing, models typically contain a first embedding layer, transforming a sequence of tokens into vector…

计算与语言 · 计算机科学 2023-06-13 Rémi Catellier , Samuel Vaiter , Damien Garreau

End-to-end acoustic-to-word speech recognition models have recently gained popularity because they are easy to train, scale well to large amounts of training data, and do not require a lexicon. In addition, word models may also be easier to…

计算与语言 · 计算机科学 2019-02-20 Shruti Palaskar , Vikas Raunak , Florian Metze

Cross-lingual transfer of word embeddings aims to establish the semantic mappings among words in different languages by learning the transformation functions over the corresponding word embedding spaces. Successfully solving this problem…

计算与语言 · 计算机科学 2018-09-12 Ruochen Xu , Yiming Yang , Naoki Otani , Yuexin Wu

Natural language processing has improved tremendously after the success of word embedding techniques such as word2vec. Recently, the same idea has been applied on source code with encouraging results. In this survey, we aim to collect and…

机器学习 · 计算机科学 2019-04-08 Zimin Chen , Martin Monperrus

Reasoning about implied relationships (e.g., paraphrastic, common sense, encyclopedic) between pairs of words is crucial for many cross-sentence inference problems. This paper proposes new methods for learning and using embeddings of word…

计算与语言 · 计算机科学 2019-04-09 Mandar Joshi , Eunsol Choi , Omer Levy , Daniel S. Weld , Luke Zettlemoyer

Latent Semantic Analysis (LSA) and Word2vec are some of the most widely used word embeddings. Despite the popularity of these techniques, the precise mechanisms by which they acquire new semantic relations between words remain unclear. In…

计算与语言 · 计算机科学 2019-01-23 Edgar Altszyler , Mariano Sigman , Diego Fernandez Slezak

Meta-embedding (ME) learning is an emerging approach that attempts to learn more accurate word embeddings given existing (source) word embeddings as the sole input. Due to their ability to incorporate semantics from multiple source…

计算与语言 · 计算机科学 2022-04-26 Danushka Bollegala , James O'Neill

Word representation is fundamental in NLP tasks, because it is precisely from the coding of semantic closeness between words that it is possible to think of teaching a machine to understand text. Despite the spread of word embedding…

This paper presents preliminary works on using Word Embedding (word2vec) for query expansion in the context of Personalized Information Retrieval. Traditionally, word embeddings are learned on a general corpus, like Wikipedia. In this work…

信息检索 · 计算机科学 2016-06-23 Nawal Ould-Amer , Philippe Mulhem , Mathias Gery

Word usage, meaning and connotation change throughout time. Diachronic word embeddings are used to grasp these changes in an unsupervised way. In this paper, we use variants of the Dynamic Bernoulli Embeddings model to learn dynamic word…

计算与语言 · 计算机科学 2019-07-23 Syrielle Montariol , Alexandre Allauzen

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

Vector representations of graphs and relational structures, whether hand-crafted feature vectors or learned representations, enable us to apply standard data analysis and machine learning techniques to the structures. A wide range of…

机器学习 · 计算机科学 2020-03-31 Martin Grohe