Nils Hammerla

Graph Neural Networks for Link Prediction with Subgraph Sketching

2022 · arXiv (Cornell University)

Many Graph Neural Networks (GNNs) perform poorly compared to simple heuristics on Link Prediction (LP) tasks. This is due to limitations in expressive power such as the inability to count triangles (the backbone of most …

Offline bilingual word vectors, orthogonal transformations and the inverted softmax

2017 · arXiv (Cornell University)

Usually bilingual word vectors are trained "online". Mikolov et al. showed they can also be found "offline", whereby two pre-trained embeddings are aligned with a linear transformation, using dictionaries compiled from expert knowledge. In this …