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The neural architectures of language models are becoming increasingly complex, especially that of Transformers, based on the attention mechanism. Although their application to numerous natural language processing tasks has proven to be very…

计算与语言 · 计算机科学 2023-12-04 Pablo Gamallo

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

Due to their ease of use and high accuracy, Word2Vec (W2V) word embeddings enjoy great success in the semantic representation of words, sentences, and whole documents as well as for semantic similarity estimation. However, they have the…

计算与语言 · 计算机科学 2024-01-10 Tim vor der Brück , Marc Pouly

The task of image-text matching aims to map representations from different modalities into a common joint visual-textual embedding. However, the most widely used datasets for this task, MSCOCO and Flickr30K, are actually image captioning…

计算机视觉与模式识别 · 计算机科学 2021-10-07 Ali Furkan Biten , Andres Mafla , Lluis Gomez , Dimosthenis Karatzas

This paper proposes a model to learn word embeddings with weighted contexts based on part-of-speech (POS) relevance weights. POS is a fundamental element in natural language. However, state-of-the-art word embedding models fail to consider…

计算与语言 · 计算机科学 2016-03-25 Quan Liu , Zhen-Hua Ling , Hui Jiang , Yu Hu

App usage prediction is important for smartphone system optimization to enhance user experience. Existing modeling approaches utilize historical app usage logs along with a wide range of semantic information to predict the app usage;…

机器学习 · 计算机科学 2021-08-27 Yonchanok Khaokaew , Mohammad Saiedur Rahaman , Ryen W. White , Flora D. Salim

In natural language the intended meaning of a word or phrase is often implicit and depends on the context. In this work, we propose a simple yet effective method for sentiment analysis using contextual embeddings and a self-attention…

计算与语言 · 计算机科学 2020-10-07 Katarzyna Biesialska , Magdalena Biesialska , Henryk Rybinski

We present a novel approach to learn representations for sentence-level semantic similarity using conversational data. Our method trains an unsupervised model to predict conversational input-response pairs. The resulting sentence embeddings…

Citation sentiment analysis is an important task in scientific paper analysis. Existing machine learning techniques for citation sentiment analysis are focusing on labor-intensive feature engineering, which requires large annotated corpus.…

计算与语言 · 计算机科学 2017-04-04 Haixia Liu

Sentiment-aware intelligent systems are essential to a wide array of applications. These systems are driven by language models which broadly fall into two paradigms: Lexicon-based and contextual. Although recent contextual models are…

This paper explores the potential of contextualized word embeddings (CWEs) as a new tool in the history, philosophy, and sociology of science (HPSS) for studying contextual and evolving meanings of scientific concepts. Using the term…

计算与语言 · 计算机科学 2024-11-22 Arno Simons

Conventional text classification models make a bag-of-words assumption reducing text into word occurrence counts per document. Recent algorithms such as word2vec are capable of learning semantic meaning and similarity between words in an…

计算与语言 · 计算机科学 2018-07-11 Vincent Major , Alisa Surkis , Yindalon Aphinyanaphongs

We present Relational Sentence Embedding (RSE), a new paradigm to further discover the potential of sentence embeddings. Prior work mainly models the similarity between sentences based on their embedding distance. Because of the complex…

计算与语言 · 计算机科学 2023-06-09 Bin Wang , Haizhou Li

Most unsupervised NLP models represent each word with a single point or single region in semantic space, while the existing multi-sense word embeddings cannot represent longer word sequences like phrases or sentences. We propose a novel…

计算与语言 · 计算机科学 2021-12-30 Haw-Shiuan Chang , Amol Agrawal , Andrew McCallum

We review the task of Sentence Pair Scoring, popular in the literature in various forms - viewed as Answer Sentence Selection, Semantic Text Scoring, Next Utterance Ranking, Recognizing Textual Entailment, Paraphrasing or e.g. a component…

计算与语言 · 计算机科学 2016-05-18 Petr Baudiš , Jan Pichl , Tomáš Vyskočil , Jan Šedivý

Type-level word embeddings use the same set of parameters to represent all instances of a word regardless of its context, ignoring the inherent lexical ambiguity in language. Instead, we embed semantic concepts (or synsets) as defined in…

计算与语言 · 计算机科学 2017-05-09 Pradeep Dasigi , Waleed Ammar , Chris Dyer , Eduard Hovy

One of the central aspects of contextualised language models is that they should be able to distinguish the meaning of lexically ambiguous words by their contexts. In this paper we investigate the extent to which the contextualised…

计算与语言 · 计算机科学 2021-09-30 Janosch Haber , Massimo Poesio

Popular approaches to natural language processing create word embeddings based on textual co-occurrence patterns, but often ignore embodied, sensory aspects of language. Here, we introduce the Python package comp-syn, which provides…

We consider probabilistic topic models and more recent word embedding techniques from a perspective of learning hidden semantic representations. Inspired by a striking similarity of the two approaches, we merge them and learn probabilistic…

计算与语言 · 计算机科学 2017-11-15 Anna Potapenko , Artem Popov , Konstantin Vorontsov

In this paper, we study the importance of context in predicting the citation worthiness of sentences in scholarly articles. We formulate this problem as a sequence labeling task solved using a hierarchical BiLSTM model. We contribute a new…

计算与语言 · 计算机科学 2021-04-20 Rakesh Gosangi , Ravneet Arora , Mohsen Gheisarieha , Debanjan Mahata , Haimin Zhang