1.8k citations · 2.9k across the 66 of their papers we have counts for
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Can string kernels pass the test of time in Native Language Identification?
Radu Tudor Ionescu, Marius Popescu
We describe a machine learning approach for the 2017 shared task on Native Language Identification (NLI). The proposed approach combines several kernels using multiple kernel learn…
From Image to Text Classification: A Novel Approach based on Clustering Word Embeddings
Andrei M. Butnaru, Radu Tudor Ionescu
In this paper, we propose a novel approach for text classification based on clustering word embeddings, inspired by the bag of visual words model, which is widely used in computer…
ShotgunWSD: An unsupervised algorithm for global word sense disambiguation inspired by DNA sequencing
Andrei M. Butnaru, Radu Tudor Ionescu, Florentina Hristea
In this paper, we present a novel unsupervised algorithm for word sense disambiguation (WSD) at the document level. Our algorithm is inspired by a widely-used approach in the field…
How hard can it be? Estimating the difficulty of visual search in an image
Radu Tudor Ionescu, Bogdan Alexe, Marius Leordeanu +3
We address the problem of estimating image difficulty defined as the human response time for solving a visual search task. We collect human annotations of image difficulty for the…
Unmasking the abnormal events in video
Radu Tudor Ionescu, Sorina Smeureanu, Bogdan Alexe +1
We propose a novel framework for abnormal event detection in video that requires no training sequences. Our framework is based on unmasking, a technique previously used for authors…