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Contextualised word vectors obtained via pre-trained language models encode a variety of knowledge that has already been exploited in applications. Complementary to these language models are probabilistic topic models that learn thematic…

计算与语言 · 计算机科学 2023-01-12 Mozhgan Talebpour , Alba Garcia Seco de Herrera , Shoaib Jameel

Deep learning models extract, before a final classification layer, features or patterns which are key for their unprecedented advantageous performance. However, the process of complex nonlinear feature extraction is not well understood, a…

计算机视觉与模式识别 · 计算机科学 2020-06-18 Roozbeh Yousefzadeh , Furong Huang

The bottom-up saliency, an early stage of humans' visual attention, can be considered as a binary classification problem between centre and surround classes. Discriminant power of features for the classification is measured as mutual…

计算机视觉与模式识别 · 计算机科学 2013-06-07 Anh Cat Le Ngo , Kenneth Li-Minn Ang , Guoping Qiu , Jasmine Kah-Phooi Seng

We present a feature engineering pipeline for the construction of musical signal characteristics, to be used for the design of a supervised model for musical genre identification. The key idea is to extend the traditional two-step process…

声音 · 计算机科学 2021-04-08 Tina Raissi , Alessandro Tibo , Paolo Bientinesi

Topic Modelling is one of the most prevalent text analysis technique used to explore and retrieve collection of documents. The evaluation of the topic model algorithms is still a very challenging tasks due to the absence of gold-standard…

信息检索 · 计算机科学 2022-03-10 Antonio Penta

We propose a deep and interpretable probabilistic generative model to analyze glyph shapes in printed Early Modern documents. We focus on clustering extracted glyph images into underlying templates in the presence of multiple confounding…

机器学习 · 计算机科学 2020-05-05 Kartik Goyal , Chris Dyer , Christopher Warren , Max G'Sell , Taylor Berg-Kirkpatrick

We analyse bill cosponsorship networks in the Italian Chamber of Deputies. In comparison with other parliaments, a distinguishing feature of the Chamber is the large number of political groups. Our analysis aims to infer the pattern of…

应用统计 · 统计学 2019-11-06 Mirko Signorelli , Ernst C. Wit

Used in the paper is an overcomplete piecewise-polynomial image model incorporating sparsity. The paper shows that using such a model, the edges in the image can be resolved robustly with respect to noise. Two variants of the proposed…

最优化与控制 · 数学 2018-10-16 Michaela Novosadová , Pavel Rajmic

Modeling of textures in natural images is an important task to make a microscopic model of natural images. Portilla and Simoncelli proposed a generative texture model, which is based on the mechanism of visual systems in brains, with a set…

计算机视觉与模式识别 · 计算机科学 2018-10-17 Aiga Suzuki , Hayaru Shouno

Topic models are a popular tool for clustering and analyzing textual data. They allow texts to be classified on the basis of their affiliation to the previously calculated topics. Despite their widespread use in research and application, an…

人工智能 · 计算机科学 2024-03-07 Johannes Hirth , Tom Hanika

The search for specific objects or motifs is essential to art history as both assist in decoding the meaning of artworks. Digitization has produced large art collections, but manual methods prove to be insufficient to analyze them. In the…

计算机视觉与模式识别 · 计算机科学 2021-07-16 Nikolai Ufer , Sabine Lang , Björn Ommer

We present a supervised neural network model for polyphonic piano music transcription. The architecture of the proposed model is analogous to speech recognition systems and comprises an acoustic model and a music language model. The…

机器学习 · 统计学 2016-02-12 Siddharth Sigtia , Emmanouil Benetos , Simon Dixon

Our goal in this paper is to discover near duplicate patterns in large collections of artworks. This is harder than standard instance mining due to differences in the artistic media (oil, pastel, drawing, etc), and imperfections inherent in…

计算机视觉与模式识别 · 计算机科学 2019-03-11 Xi Shen , Alexei A. Efros , Mathieu Aubry

Planar ornaments, a.k.a. wallpapers, are regular repetitive patterns which exhibit translational symmetry in two independent directions. There are exactly $17$ distinct planar symmetry groups. We present a fully automatic method for…

计算机视觉与模式识别 · 计算机科学 2018-10-30 Venera Adanova , Sibel Tari

Archetypal analysis represents a set of observations as convex combinations of pure patterns, or archetypes. The original geometric formulation of finding archetypes by approximating the convex hull of the observations assumes them to be…

机器学习 · 统计学 2014-04-08 Sohan Seth , Manuel J. A. Eugster

Extracting topics from text has become an essential task, especially with the rapid growth of unstructured textual data. Most existing works rely on highly computational methods to address this challenge. In this paper, we argue that…

计算与语言 · 计算机科学 2025-11-07 Salma Mekaoui , Hiba Sofyan , Imane Amaaz , Imane Benchrif , Arsalane Zarghili , Ilham Chaker , Nikola S. Nikolov

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

Topological data analysis has been recently applied to investigate stylistic signatures and trends in musical compositions. A useful tool in this area is Persistent Homology. In this paper, we develop a novel method to represent a weighted…

声音 · 计算机科学 2022-04-26 Martín Mijangos , Alessandro Bravetti , Pablo Padilla

In this paper we describe a general probabilistic framework for modeling waveforms such as heartbeats from ECG data. The model is based on segmental hidden Markov models (as used in speech recognition) with the addition of random effects to…

应用统计 · 统计学 2012-07-19 Seyoung Kim , Padhraic Smyth , Stefan Luther

To retrieve images based on their content is one of the most studied topics in the field of computer vision. Nowadays, this problem can be addressed using modern techniques such as feature extraction using machine learning, but over the…

计算机视觉与模式识别 · 计算机科学 2021-05-12 Òscar Lorente , Ian Riera , Shauryadeep Chaudhuri , Oriol Catalan , Víctor Casales