Results 271 to 280 of about 80,037 (309)
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Bag-of-words representations for computer audition

2022
Maschinelles Hören ist im täglichen Leben allgegenwärtig, mit Anwendungen, die von personalisierten virtuellen Agenten bis hin zum Gesundheitswesen reichen. Aus technischer Sicht besteht das Ziel darin, den Inhalt eines Audiosignals hinsichtlich einer Auswahl definierter Labels robust zu klassifizieren. Die Labels beschreiben bspw.
openaire   +2 more sources

A hybrid feature extraction approach for brain MRI classification based on Bag-of-words

Biomedical Signal Processing and Control, 2019
Magnetic resonance imaging (MRI) has attracted considerable attention in medical engineering community, since it is a non-invasive diagnostic technique and for its importance in medicine applications.
Wadhah Ayadi   +3 more
semanticscholar   +1 more source

ECG biometrics using bag-of-words models

2015 International Symposium on Signals, Circuits and Systems (ISSCS), 2015
The paper identifies the effects of key design elements of bag-of-words models on the classification accuracy of ECG time series. Combinations of distinct encoding procedures, pooling methods, and classification strategies are tested in order to find best scenarios under which performances may be optimized.
openaire   +1 more source

Class-Based Color Bag of Words for Fashion Retrieval

2012 IEEE International Conference on Multimedia and Expo, 2012
Color signatures, histograms and bag of colors are basic and effective strategies for describing the color content of images, for retrieving images by their color appearance or providing color annotation. In some domains, colors assume a specific meaning for users and the color-based classification and retrieval should mirror the initial suggestions ...
GRANA, Costantino   +2 more
openaire   +2 more sources

Comparing Bag of Words and TF-IDF with different models for hate speech detection from live tweets

International journal of information technology, 2022
S. Akuma, Tyosar Lubem, Isaac Adom
semanticscholar   +1 more source

A novel method for content-based image retrieval to improve the effectiveness of the bag-of-words model using a support vector machine

Journal of information science, 2018
The advancements in the multimedia technologies result in the growth of the image databases. To retrieve images from such image databases using visual attributes of the images is a challenging task due to the close visual appearance among the visual ...
A. Sarwar   +5 more
semanticscholar   +1 more source

Robust Vehicle Detection in Aerial Images Using Bag-of-Words and Orientation Aware Scanning

IEEE Transactions on Geoscience and Remote Sensing, 2018
This paper presents a novel approach to automatically detect and count cars in different aerial images, which can be satellite or unmanned aerial vehicle (UAV) images.
Hailing Zhou   +4 more
semanticscholar   +1 more source

Improved bags-of-words algorithm for scene recognition

2010 2nd International Conference on Signal Processing Systems, 2010
This paper proposes an effective method to scene recognition based on bags-of-words (BoW) algorithm. Current scene classification methods usually treat all the codewords equally important when using BoW histogram to represent an image. This assumption, however, does not comply with many real-world conditions as different codewords usually have ...
Jiang Hao, Xu Jie
openaire   +1 more source

A Bag of Words Approach for 3D Object Categorization

2009
In this paper we propose a novel framework for 3D object categorization. The object is modeled it in terms of its sub-parts as an histogram of 3D visual word occurrences. We introduce an effective method for hierarchical 3D object segmentation driven by the minima rule that combines spectral clustering --- for the selection of seed-regions --- with ...
Toldo, R.   +2 more
openaire   +3 more sources

Clinical Text Classification with Word Embedding Features vs. Bag-of-Words Features

2018 IEEE International Conference on Big Data (Big Data), 2018
Word embedding motivated by deep learning have shown promising results over traditional bag-of-words features for natural language processing. When trained on large text corpora, word embedding methods such as word2vec and doc2vec methods have the ...
Y. Shao   +4 more
semanticscholar   +1 more source

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