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Recent progress in neural information retrieval has demonstrated large gains in effectiveness, while often sacrificing the efficiency and interpretability of the neural model compared to classical approaches. This paper proposes ColBERTer,…

信息检索 · 计算机科学 2022-03-25 Sebastian Hofstätter , Omar Khattab , Sophia Althammer , Mete Sertkan , Allan Hanbury

How to learn highly compact yet effective sentence representation? Pre-trained language models have been effective in many NLP tasks. However, these models are often huge and produce large sentence embeddings. Moreover, there is a big…

计算与语言 · 计算机科学 2022-03-16 Xuandong Zhao , Zhiguo Yu , Ming Wu , Lei Li

In this article, we tackle the issue of the limited quantity of manually sense annotated corpora for the task of word sense disambiguation, by exploiting the semantic relationships between senses such as synonymy, hypernymy and hyponymy, in…

计算与语言 · 计算机科学 2019-08-29 Loïc Vial , Benjamin Lecouteux , Didier Schwab

Representing words by vectors, or embeddings, enables computational reasoning and is foundational to automating natural language tasks. For example, if word embeddings of similar words contain similar values, word similarity can be readily…

计算与语言 · 计算机科学 2022-02-02 Carl Allen

We provide a comparative study between neural word representations and traditional vector spaces based on co-occurrence counts, in a number of compositional tasks. We use three different semantic spaces and implement seven tensor-based…

计算与语言 · 计算机科学 2014-08-27 Dmitrijs Milajevs , Dimitri Kartsaklis , Mehrnoosh Sadrzadeh , Matthew Purver

Adding linguistic information (syntax or semantics) to neural machine translation (NMT) has mostly focused on using point estimates from pre-trained models. Directly using the capacity of massive pre-trained contextual word embedding models…

计算与语言 · 计算机科学 2021-04-08 Hassan S. Shavarani , Anoop Sarkar

The automatic detection of hypernymy relationships represents a challenging problem in NLP. The successful application of state-of-the-art supervised approaches using distributed representations has generally been impeded by the limited…

计算与语言 · 计算机科学 2021-01-25 Thomas Kober , Julie Weeds , Lorenzo Bertolini , David Weir

In the evolving field of Natural Language Processing (NLP), understanding the temporal context of text is increasingly critical for applications requiring advanced temporal reasoning. Traditional pre-trained language models like BERT, which…

计算与语言 · 计算机科学 2025-03-06 Jiexin Wang , Adam Jatowt , Yi Cai

In this paper, we propose an alternative to deep neural networks for semantic information retrieval for the case of long documents. This new approach exploiting clustering techniques to take into account the meaning of words in Information…

信息检索 · 计算机科学 2025-07-29 Paul Mbathe Mekontchou , Armel Fotsoh , Bernabe Batchakui , Eddy Ella

Named entity recognition (NER) is a fundamental component in many applications, such as Web Search and Voice Assistants. Although deep neural networks greatly improve the performance of NER, due to the requirement of large amounts of…

计算与语言 · 计算机科学 2021-06-02 Shining Liang , Ming Gong , Jian Pei , Linjun Shou , Wanli Zuo , Xianglin Zuo , Daxin Jiang

Neural language models are a powerful tool to embed words into semantic vector spaces. However, learning such models generally relies on the availability of abundant and diverse training examples. In highly specialised domains this…

计算与语言 · 计算机科学 2015-12-04 Stephanie L. Hyland , Theofanis Karaletsos , Gunnar Rätsch

In recent years, pretrained language models have revolutionized the NLP world, while achieving state of the art performance in various downstream tasks. However, in many cases, these models do not perform well when labeled data is scarce…

计算与语言 · 计算机科学 2022-04-06 Liat Ein-Dor , Ilya Shnayderman , Artem Spector , Lena Dankin , Ranit Aharonov , Noam Slonim

Named entity recognition (NER) is frequently addressed as a sequence classification task where each input consists of one sentence of text. It is nevertheless clear that useful information for the task can often be found outside of the…

计算与语言 · 计算机科学 2020-12-18 Jouni Luoma , Sampo Pyysalo

Semantic vectors are learned from data to express semantic relationships between elements of information, for the purpose of solving and informing downstream tasks. Other models exist that learn to map and classify supervised data. However,…

人工智能 · 计算机科学 2018-07-24 Peter Sutor , Douglas Summers-Stay , Yiannis Aloimonos

In traditional Distributional Semantic Models (DSMs) the multiple senses of a polysemous word are conflated into a single vector space representation. In this work, we propose a DSM that learns multiple distributional representations of a…

计算与语言 · 计算机科学 2019-04-12 Eleftheria Briakou , Nikos Athanasiou , Alexandros Potamianos

Distributed representations of words and paragraphs as semantic embeddings in high dimensional data are used across a number of Natural Language Understanding tasks such as retrieval, translation, and classification. In this work, we…

计算与语言 · 计算机科学 2015-08-04 Devendra Singh Sachan , Shailesh Kumar

Most conventional sentence similarity methods only focus on similar parts of two input sentences, and simply ignore the dissimilar parts, which usually give us some clues and semantic meanings about the sentences. In this work, we propose a…

计算与语言 · 计算机科学 2017-07-18 Zhiguo Wang , Haitao Mi , Abraham Ittycheriah

Word vector representations are well developed tools for various NLP and Machine Learning tasks and are known to retain significant semantic and syntactic structure of languages. But they are prone to carrying and amplifying bias which can…

计算与语言 · 计算机科学 2019-01-24 Sunipa Dev , Jeff Phillips

Word evolution refers to the changing meanings and associations of words throughout time, as a byproduct of human language evolution. By studying word evolution, we can infer social trends and language constructs over different periods of…

计算与语言 · 计算机科学 2018-02-14 Zijun Yao , Yifan Sun , Weicong Ding , Nikhil Rao , Hui Xiong

Although LLMs have demonstrated remarkable capabilities in processing and generating textual data, their pre-trained vocabularies are ill-suited for capturing the nuanced temporal dynamics and patterns inherent in time series. The discrete,…

机器学习 · 计算机科学 2024-12-25 Filippos Bellos , Nam H. Nguyen , Jason J. Corso