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The task of information retrieval is an important component of many natural language processing systems, such as open domain question answering. While traditional methods were based on hand-crafted features, continuous representations based…

计算与语言 · 计算机科学 2022-08-05 Gautier Izacard , Edouard Grave

Knowledge-aware methods have boosted a range of natural language processing applications over the last decades. With the gathered momentum, knowledge recently has been pumped into enormous attention in document summarization, one of natural…

计算与语言 · 计算机科学 2022-07-12 Yutong Qu , Wei Emma Zhang , Jian Yang , Lingfei Wu , Jia Wu

Topic models have been the prominent tools for automatic topic discovery from text corpora. Despite their effectiveness, topic models suffer from several limitations including the inability of modeling word ordering information in…

计算与语言 · 计算机科学 2022-02-10 Yu Meng , Yunyi Zhang , Jiaxin Huang , Yu Zhang , Jiawei Han

We consider the problem of fully unsupervised learning of grammatical (part-of-speech) categories from unlabeled text. The standard maximum-likelihood hidden Markov model for this task performs poorly, because of its weak inductive bias and…

计算与语言 · 计算机科学 2014-01-24 João V. Graça , Kuzman Ganchev , Luisa Coheur , Fernando Pereira , Ben Taskar

Many latent (factorized) models have been proposed for recommendation tasks like collaborative filtering and for ranking tasks like document or image retrieval and annotation. Common to all those methods is that during inference the items…

机器学习 · 计算机科学 2012-10-19 Jason Weston , John Blitzer

Classic Topic Models are built under the Bag Of Words assumption, in which word position is ignored for simplicity. Besides, symmetric priors are typically used in most applications. In order to easily learn topics with different properties…

计算与语言 · 计算机科学 2018-06-27 Simón Roca-Sotelo , Jerónimo Arenas-García

Nowadays, with the booming development of the Internet, people benefit from its convenience due to its open and sharing nature. A large volume of natural language texts is being generated by users in various forms, such as search queries,…

计算与语言 · 计算机科学 2019-08-07 Chenwei Zhang

Topic modeling analyzes documents to learn meaningful patterns of words. However, existing topic models fail to learn interpretable topics when working with large and heavy-tailed vocabularies. To this end, we develop the Embedded Topic…

信息检索 · 计算机科学 2019-07-12 Adji B. Dieng , Francisco J. R. Ruiz , David M. Blei

Text Summarization is recognised as one of the NLP downstream tasks and it has been extensively investigated in recent years. It can assist people with perceiving the information rapidly from the Internet, including news articles, social…

计算与语言 · 计算机科学 2022-12-08 Guan Wang , Weihua Li , Edmund Lai , Jianhua Jiang

One of the main computational and scientific challenges in the modern age is to extract useful information from unstructured texts. Topic models are one popular machine-learning approach which infers the latent topical structure of a…

机器学习 · 统计学 2018-07-20 Martin Gerlach , Tiago P. Peixoto , Eduardo G. Altmann

Text classification is crucial for applications such as sentiment analysis and toxic text filtering, but it still faces challenges due to the complexity and ambiguity of natural language. Recent advancements in deep learning, particularly…

计算与语言 · 计算机科学 2024-08-29 Lingyu Gao

Topic modeling is a powerful technique to discover hidden topics and patterns within a collection of documents without prior knowledge. Traditional topic modeling and clustering-based techniques encounter challenges in capturing contextual…

计算与语言 · 计算机科学 2024-10-04 Melkamu Abay Mersha , Mesay Gemeda yigezu , Jugal Kalita

We propose a neural network based approach for learning topics from text and image datasets. The model makes no assumptions about the conditional distribution of the observed features given the latent topics. This allows us to perform topic…

机器学习 · 计算机科学 2017-03-01 Gaurav Pandey , Ambedkar Dukkipati

The meaning of a word often varies depending on its usage in different domains. The standard word embedding models struggle to represent this variation, as they learn a single global representation for a word. We propose a method to learn…

计算与语言 · 计算机科学 2019-10-22 Lahari Poddar , Gyorgy Szarvas , Lea Frermann

Current topic models often suffer from discovering topics not matching human intuition, unnatural switching of topics within documents and high computational demands. We address these concerns by proposing a topic model and an inference…

计算与语言 · 计算机科学 2018-02-06 Johannes Schneider

Segmenting an unordered text document into different sections is a very useful task in many text processing applications like multiple document summarization, question answering, etc. This paper proposes structuring of an unordered text…

We present a simple approach for text infilling, the task of predicting missing spans of text at any position in a document. While infilling could enable rich functionality especially for writing assistance tools, more attention has been…

计算与语言 · 计算机科学 2020-09-14 Chris Donahue , Mina Lee , Percy Liang

Text detection enables us to extract rich information from images. In this paper, we focus on how to generate bounding boxes that are appropriate to grasp text areas on books to help implement automatic text detection. We attempt not to…

计算机视觉与模式识别 · 计算机科学 2020-06-29 Riku Anegawa , Masayoshi Aritsugi

When people interpret text, they rely on inferences that go beyond the observed language itself. Inspired by this observation, we introduce a method for the analysis of text that takes implicitly communicated content explicitly into…

计算与语言 · 计算机科学 2025-02-25 Alexander Hoyle , Rupak Sarkar , Pranav Goel , Philip Resnik

It has recently been observed that neural language models trained on unstructured text can implicitly store and retrieve knowledge using natural language queries. In this short paper, we measure the practical utility of this approach by…

计算与语言 · 计算机科学 2020-10-07 Adam Roberts , Colin Raffel , Noam Shazeer