1 code implementation • 23 Aug 2021 • Zekarias T. Kefato, Sarunas Girdzijauskas, Hannes Stärk
Recently, a number of SSL methods for graph representation learning have achieved performance comparable to SOTA semi-supervised GNNs.
2 code implementations • 27 Mar 2021 • Zekarias T. Kefato, Sarunas Girdzijauskas
This calls for unsupervised learning techniques that are powerful enough to achieve comparable results as semi-supervised/supervised techniques.
1 code implementation • 10 Nov 2020 • Zekarias T. Kefato, Sarunas Girdzijauskas, Nasrullah Sheikh, Alberto Montresor
In recommender systems (RSs), predicting the next item that a user interacts with is critical for user retention.
1 code implementation • 30 Mar 2020 • Zekarias T. Kefato, Sarunas Girdzijauskas
In this study we show that in-order to extract high-quality context-sensitive node representations it is not needed to rely on supplementary node features, nor to employ computationally heavy and complex models.
1 code implementation • 30 Jan 2020 • Zekarias T. Kefato, Nasrullah Sheikh, Alberto Montresor
Most studies ignore the directionality, so as to learn high-quality representations optimized for node classification.
1 code implementation • 28 Jan 2020 • Zekarias T. Kefato, Sarunas Girdzijauskas
Network representation learning (NRL) is a powerful technique for learning low-dimensional vector representation of high-dimensional and sparse graphs.