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Persistence Bag-of-Words for Topological Data Analysis [PDF]

open access: yesProceedings of the Twenty-Eighth International Joint Conference on Artificial Intelligence, 2019
Persistent homology (PH) is a rigorous mathematical theory that provides a robust descriptor of data in the form of persistence diagrams (PDs). PDs exhibit, however, complex structure and are difficult to integrate in today's machine learning workflows ...
Dłotko, Paweł   +4 more
core   +2 more sources

Semantics-Preserving Bag-of-Words Models and Applications

open access: yesIEEE Transactions on Image Processing, 2010
The Bag-of-Words (BoW) model is a promising image representation technique for image categorization and annotation tasks. One critical limitation of existing BoW models is that much semantic information is lost during the codebook generation process, an important step of BoW.
WU, Lei, HOI, Steven C. H., YU, Nenghai
openaire   +6 more sources

Image Reconstruction from Bag-of-Visual-Words [PDF]

open access: yes2014 IEEE Conference on Computer Vision and Pattern Recognition, 2015
The objective of this work is to reconstruct an original image from Bag-of-Visual-Words (BoVW). Image reconstruction from features can be a means of identifying the characteristics of features.
Harada, Tatsuya, Kato, Hiroharu
core   +2 more sources

Albanian Text Classification: Bag of Words Model and Word Analogies [PDF]

open access: yesBusiness Systems Research, 2019
Background: Text classification is a very important task in information retrieval. Its objective is to classify new text documents in a set of predefined classes, using different supervised algorithms.
Kadriu Arbana, Abazi Lejla, Abazi Hyrije
doaj   +3 more sources

Decomposing Bag of Words Histograms [PDF]

open access: yes2013 IEEE International Conference on Computer Vision, 2013
We aim to decompose a global histogram representation of an image into histograms of its associated objects and regions. This task is formulated as an optimization problem, given a set of linear classifiers, which can effectively discriminate the object categories present in the image.
Gandhi, Ankit   +2 more
openaire   +2 more sources

Bag of ARSRG Words (BoAW) [PDF]

open access: yesMachine Learning and Knowledge Extraction, 2019
In recent years researchers have worked to understand image contents in computer vision. In particular, the bag of visual words (BoVW) model, which describes images in terms of a frequency histogram of visual words, is the most adopted paradigm. The main drawback is the lack of information about location and the relationships between features. For this
Mario Manzo, Simone Pellino
openaire   +1 more source

More than Bags of Words: Sentiment Analysis with Word Embeddings [PDF]

open access: yesCommunication Methods and Measures, 2018
Moving beyond the dominant bag-of-words approach to sentiment analysis we introduce an alternative procedure based on distributed word embeddings. The strength of word embeddings is the ability to capture similarities in word meaning. We use word embeddings as part of a supervised machine learning procedure which estimates levels of negativity in ...
Elena Rudkowsky   +5 more
openaire   +4 more sources

Bag-of-Words for Transfer Learning

open access: yes2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021
Although the number of labeled datasets in Earth Observation (EO) is increasing, there is still a major gap between the Deep Learning (DL) classifiers designed in this field versus the models in Computer Vision. This gap is produced mainly by the number of datasets available, but also by the diversity of data.
Iulian, Calota   +2 more
openaire   +1 more source

Network-Based Bag-of-Words Model for Text Classification

open access: yesIEEE Access, 2020
The rapidly developing internet and other media have produced a tremendous amount of text data, making it a challenging and valuable task to find a more effective way to analyze text data by machine. Text representation is the first step for a machine to
Dongyang Yan   +3 more
doaj   +1 more source

Improving Bag-of-Words model with spatial information [PDF]

open access: yes, 2010
Bag-of-Words (BOW) models have recently become popular for the task of object recognition, owing to their good performance and simplicity. Much work has been proposed over the years to improve the BOW model, where the Spatial Pyramid Matching technique ...
Mayo, Michael, Zhang, Edmond Yiwen
core   +2 more sources

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