Deep learning model observer for 4-alternative forced choice in digital breast tomosynthesis

2020 ◽  
Author(s):  
Seungyeon Choi ◽  
Sunghoon Choi ◽  
Young-Wook Choi ◽  
Hee-Joung Kim
Keyword(s):  
Deep Learning ◽  
Digital Breast Tomosynthesis ◽  
Learning Model ◽  
Forced Choice ◽  
Breast Tomosynthesis ◽  
Model Observer ◽  
Deep Learning Model

Using transfer learning for a deep learning model observer

2019 ◽  
Author(s):  
William Murphy ◽  
Mark D. Halling-Brown ◽  
Emma Lewis ◽  
Premkumar Elangovan ◽  
Kenneth C. Young ◽  
...  
Keyword(s):  
Deep Learning ◽  
Transfer Learning ◽  
Learning Model ◽  
Model Observer ◽  
Deep Learning Model

Improving Sentiment Analysis using Hybrid Deep Learning Model

2020 ◽  
Vol 13 (4) ◽  
pp. 627-640 ◽  
Author(s):  
Avinash Chandra Pandey ◽  
Dharmveer Singh Rajpoot
Keyword(s):  
Neural Network ◽  
Deep Learning ◽  
Sentiment Analysis ◽  
Classification Accuracy ◽  
Short Term Memory ◽  
Computational Cost ◽  
Extraction Process ◽  
Learning Model ◽  
Sentiment Classification ◽  
Deep Learning Model

Background: Sentiment analysis is a contextual mining of text which determines viewpoint of users with respect to some sentimental topics commonly present at social networking websites. Twitter is one of the social sites where people express their opinion about any topic in the form of tweets. These tweets can be examined using various sentiment classification methods to find the opinion of users. Traditional sentiment analysis methods use manually extracted features for opinion classification. The manual feature extraction process is a complicated task since it requires predefined sentiment lexicons. On the other hand, deep learning methods automatically extract relevant features from data hence; they provide better performance and richer representation competency than the traditional methods. Objective: The main aim of this paper is to enhance the sentiment classification accuracy and to reduce the computational cost. Method: To achieve the objective, a hybrid deep learning model, based on convolution neural network and bi-directional long-short term memory neural network has been introduced. Results: The proposed sentiment classification method achieves the highest accuracy for the most of the datasets. Further, from the statistical analysis efficacy of the proposed method has been validated. Conclusion: Sentiment classification accuracy can be improved by creating veracious hybrid models. Moreover, performance can also be enhanced by tuning the hyper parameters of deep leaning models.

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