Stack Overflow
Stack Overflow

Questions tagged [stellargraph]

23 questions
1
vote
0 answers

Cant use stellargraph library from google colab

I have been trying to run a certain notebook in google colab with the use of stellargraph library I am using this command to install stellargraph (required version is 1.2.1) Note: I changed the python to 3.7.16 %pip install -q…
Saar
  • 11
  • 2
1
vote
0 answers

TypeError: Cannot iterate over a Tensor with unknown first dimension

Getting the following error when I execute the below code: TypeError: Cannot iterate over a Tensor with unknown first dimension. How to solve this? The error is in the line output_gcn = gcn(input_layer) I tried reshaping the input_layer, but it…
kini.kg
  • 11
  • 1
1
vote
1 answer

StellarGraph PaddedGraphGenerator - how to provide specific training, validation and test sets

I'm trying to train a basic Graph Neural Network using the StellarGraph library, in particular starting from the example provided in [0]. The example works fine, but now I would like to repeat the same exercize removing the N-Fold Crossvalidation…
hwktmp
  • 33
  • 1
  • 4
1
vote
1 answer

Pycharm backend issue

I see that this is a common issue but I have yet to see a fix for it. I am using the latest pycharm community, and i am running a script from the python console, but any time I try to load matplotlib or stellargraph in particular, I get the…
TSirico
  • 35
  • 5
1
vote
1 answer

Algorithm design: Find CCs containing specific nodes from a large edge list

Given: Large edge list, with about 90-100 million edges, 2 million nodes. These edges compose a giant graph with thousands of connected components. I also have a list of nodes of interest. I want to extract the edges of only the CCs containing these…
Jonathan
  • 1,876
  • 2
  • 20
  • 56
1
vote
1 answer

Watch-your-step model with StellarGraph is not working on a GPU

I am trying to train a large graph-embedding using WatchYourStep algorithm using StellarGraph. For some reason, the model is only trained on a CPU and not utilizing the GPUs. using: TensorFlow-gpu 2.3.1 having 2 GPUs , cuda 10.1 running inside an…
Dror Hilman
  • 6,837
  • 9
  • 39
  • 56
0
votes
0 answers

Keras model predicting different outputs for the same input

I am using stellargraph for learning a GraphSage model. This is my code: num_samples = [10, 5] unsupervised_samples = UnsupervisedSampler(G,nodes=G.nodes(),length=10, number_of_walks=5) # Generate training data for the encoder model generator =…
Bob
  • 23
  • 5
0
votes
0 answers

How to pass Stellargraph as an input to Keras model?

I am unable to pass Stellargraph graph as an input to Keras model using Input(). It gives an error: Failed to find data adapter that can handle input: , Is there a way to define input…
Aks
  • 3
  • 2
0
votes
1 answer

How to add new node attributes to an already created stellargraph graph?

I have a graph StellarGraph: Undirected multigraph Nodes: 4, Edges: 10 Node types: default: [4] Features: float32 vector, length 2 Edge types: default-default->default Edge types: default-default->default: [10] Weights:…
Aks
  • 3
  • 2
0
votes
0 answers

What to use a node feature on the hinSAGE algorithm?

I have a graph with this info: StellarDiGraph: Directed multigraph Nodes: 1417, Edges: 1988 Node types: ParagraphA: [429] Features: float32 vector, length 1417 Edge types: A-contains->D, A-contains->F, A-contains->E PrecedentB: [332] Features:…
Red Boraley
  • 21
  • 2
0
votes
0 answers

GCN steller graph: train_gen = generator.flow(train_subjects.index, train_targets)

I am using GCN from Steller Graph with Cora dataset from CSV files (not default dataset). It gives me an error: raise KeyError(missing_values) at train_gen = generator.flow(train_subjects.index, train_targets). The error is given below.…
wasif khan
  • 27
  • 6
0
votes
0 answers

How can I use StellarGraph BiasedRandomWalk function to walk only over nodes with a specific attribute?

I work in the medical field and have a networkx MultiDiGraph G representing Human Phenotype Ontology (HPO) numenclature of symptoms. For example, 'Macrocephaly at birth' with HPO id HP:0004488 is a clinical symptom and is connected upstream to a…
raphael
  • 1
0
votes
1 answer

Incompatible shapes in Stellargraph

I'm trying to implement a small prototype of The GCN Model using the library Stellargraph. I've my StellarGraph graph object ready, I'm trying to solve a multi-class multi-label classification problem. This means I'm trying to predict more than one…
Muhammad Ezzat
  • 97
  • 6
0
votes
1 answer

Linkprediction using Hinsage/Graphsage in StellarGraph returns NaNs

I am trying to run a link prediction using HinSAGE in the stellargraph python package. I have a network of people and products, with edges from person to person (KNOWs) and person to products (BOUGHT). Both people and products got a property vector…
Bjørn Øst Hansen
  • 179
  • 1
  • 2
  • 9
0
votes
1 answer

Stellargraph and Node2Vec embedding

I'm trying to do a link prediction with stellargraph, following the documention tutorial. When I reach this part : def node2vec_embedding(graph, name): rw = BiasedRandomWalk(graph) walks = rw.run(graph.nodes(), n=num_walks,…
Reine Baudache
  • 413
  • 4
  • 16
1
2