Hi, I think the tutorial follows the practice of SEAL on formulating a link prediction problem as a binary classification problem and the way SEAL prepares ...
Training a link prediction model involves comparing the scores between nodes connected by an edge against the scores between an arbitrary pair of nodes. For ...
DGL recommends you to treat the pairs of nodes as another graph, since you can describe a pair of nodes with an edge. In link prediction, you will have a positive graph consisting of all the positive examples as edges, and a negative graph consisting of all the negative examples.
05.08.2020 · Link Prediction for RGCN Heterograph. Could you add to the Relational Graph Convolutional Neural Network an Implementation for Heterographs (next to the Entity Classification) for Link Prediction?. Motivation. Since this is a very relevant task in graph based ML, it would be very helpful to have an implementation for the Link Prediction.
28.12.2019 · I have used this tutorial for link prediction using DGL on my own dataset: My question is once I have done the training, how do I see the new predicted edges in Networkx? I’m unclear whether my graph is so small that no new edges were predicted or whether I need to store the predictions during training in order to see the new edges? Thanks!
17.11.2020 · @jwwu666 Yes you are right, the code did node classification instead of link prediction. In training phase, the target is to predict each node's neighbor (encourage the score in positive graph to be higher than that in negative graph), which somewhat looks like link prediction but it's not. In inference phase, the target is node classification.
DGL provides the unsupervised learning GraphSAGE that shows an example of link prediction on homogeneous graphs. For heterogeneous graphs The models computing the node representations on heterogeneous graphs can also be used for computing incident node representations for edge classification/regression.
Link prediction is to predict whether two nodes in a network are likely to have a link [1]. Given the ubiquitous existence of networks, it has many applications ...
5.3 Link Prediction — DGL 0.6.1 documentation 5.3 Link Prediction (中文版) In some other settings you may want to predict whether an edge exists between two given nodes or not. Such task is called a link prediction task. Overview
Training is through loss of standard cross-entropy. Link prediction is done by reconstructing an edge with an autoencoder architecture, using a parameterized score function. Training uses negative sampling. This tutorial focuses on the first task, entity classification, to show how to generate entity representation.
A line graph neural network (LGNN) shows how DGL can implement an advanced graph algorithm by mixing basic tensor operations, sparse-matrix multiplication, and message- passing APIs. In the following sections, you learn about community detection, line graphs, LGNN, and its implementation. Supervised community detection task with the Cora dataset ¶
Link prediction is a task to estimate the probability of links between nodes in a graph. ( Image credit: [Inductive Representation Learning on Large ...