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Cross-Media Learning for Image Sentiment Analysis in the Wild

Much progress has been made in the field of sentiment analysis in the past years. Researchers relied on textual data for this task, while only recently they have started investigating approaches to predict sentiments from multimedia content. With the increasing amount of data shared on social media, there is also a rapidly growing interest in approaches that work “in the wild”, i.e. that are able to deal with uncontrolled conditions. In this work, we faced the challenge of training a visual sentiment classifier starting from a large set of user-generated and unlabeled contents. In particular, we collected more than 3 million tweets containing both text and images, and we leveraged on the sentiment polarity of the textual contents to train a visual sentiment classifier. To the best of our knowledge, this is the first time that a cross-media learning approach is proposed and tested in this context. We assessed the validity of our model by conducting comparative studies and evaluations on a benchmark for visual sentiment analysis. Our empirical study shows that although the text associated to each image is often noisy and weakly correlated with the image content, it can be profitably exploited to train a deep Convolutional Neural Network that effectively predicts the sentiment polarity of previously unseen images.

The 2017 IEEE International Conference on Computer Vision Workshops (ICCV’17), Venezia, Italia, 2017

External authors: Lucia Vadicamo (ISTI-CNR), Fabio Carrara (ISTI-CNR), Andrea Cimino (ILC-CNR), Felice Dell'Orletta (ILC-CNR), Fabrizio Falchi (ISTI-CNR)
IIT authors:

Type: Contributo in atti di convegno
Field of reference: Computer Science & Engineering

File: VSM2017.pdf

Activity: Social Media Analysis