7 papers
Best Practices for a Handwritten Text Recognition System
George Retsinas, Giorgos Sfikas, Basilis Gatos +1
Handwritten text recognition has been developed rapidly in the recent years, following the rise of deep learning and its applications. Though deep learning methods provide notable…
Keyword Spotting Simplified: A Segmentation-Free Approach using Character Counting and CTC re-scoring
George Retsinas, Giorgos Sfikas, Christophoros Nikou
Recent advances in segmentation-free keyword spotting treat this problem w.r.t. an object detection paradigm and borrow from state-of-the-art detection systems to simultaneously pr…
Automatic Video Colorization using 3D Conditional Generative Adversarial Networks
Panagiotis Kouzouglidis, Giorgos Sfikas, Christophoros Nikou
In this work, we present a method for automatic colorization of grayscale videos. The core of the method is a Generative Adversarial Network that is trained and tested on sequences…
Human Activity Recognition Using Robust Adaptive Privileged Probabilistic Learning
Michalis Vrigkas, Evangelos Kazakos, Christophoros Nikou +1
In this work, a novel method based on the learning using privileged information (LUPI) paradigm for recognizing complex human activities is proposed that handles missing informatio…
Curriculum Learning of Visual Attribute Clusters for Multi-Task Classification
Nikolaos Sarafianos, Theodore Giannakopoulos, Christophoros Nikou +1
Visual attributes, from simple objects (e.g., backpacks, hats) to soft-biometrics (e.g., gender, height, clothing) have proven to be a powerful representational approach for many a…
Inferring Human Activities Using Robust Privileged Probabilistic Learning
Michalis Vrigkas, Evangelos Kazakos, Christophoros Nikou +1
Classification models may often suffer from "structure imbalance" between training and testing data that may occur due to the deficient data collection process. This imbalance can…
Curriculum Learning for Multi-Task Classification of Visual Attributes
Nikolaos Sarafianos, Theodore Giannakopoulos, Christophoros Nikou +1
Visual attributes, from simple objects (e.g., backpacks, hats) to soft-biometrics (e.g., gender, height, clothing) have proven to be a powerful representational approach for many a…