Knowledge graph is an enterprise-wide integrated database based on graph technologies. The term was widely introduced by Gartner's Hype Cycle of Emerging Technologies, 2018. Use the 'google-knowledge-graph' tag, if you mean Google Knowledge Graph solely.
Questions tagged [knowledge-graph]
181 questions
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How to write cypher query to count number of nodes in graph based on levenshtein similarity
Hello everyone I need to write a cypher query for a below scenario.
Given a list of strings, count the number nodes in graph where levenshtein similarity between node name property and strings from the list is more than certain thershold.
I was able…
Atinesh
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pyviz to visualize multiple separate graphs into one and filter by graph
I am generating a graph to visualize the association's rules and using pyviz to get an interactive visualization. Currently, I saved data in one graph but I would like to save different data into separate graphs and represent it all in one network…
rooya sh
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Get value of property linked to another property in SPARQL querying DBpedia
I am trying to complete the following case in SPARQL. I want to return the labels of the deathPlace for the Greek writer "Nikos Kazantzakis"
The workspace to copy-paste the queries below.
I am running the following query:
PREFIX dp:…
NikSp
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How to build a RDF knowledge graph by triples
I have a set of triples and can also draw a "graph" by them using some codes, but how to convert it into a RDF version like real knowledge graphs like fb15k or so.
WalterW
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Is there a better approach to import a spreadsheet with multiple columns that may not have data for every row into Neo4j? Data set image included
Objectives - To add each values in the columns as a node. Each column represents a label type. The colored column is a property of Field column.
The query I used to ingest this into Neo4j Aura is:
LOAD CSV WITH HEADERS FROM…
g.tomas
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1 answer
Neo4j data modeling: correct way to specify a source for a statement?
I'm working on a scientific database that contains model statements such as:
"A possible cause of Fibromyalgia is Microglial hyperactivity, as supported by these 10 studies: [...] and contradicted by 1 study [...]."
I need to specify a source for…
Xiiryo
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Is there a list of all embedding techniques used in all applications of Machine learning?
I started to learn embedding techniques used in machine learning and allied fields. There are word embeddings, graph embeddings, and network embeddings. I was overwhelmed by the various embedding techniques as I googled. Is there a good repository…
Madhav Gumma
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DBpedia dbo:height property and its value
Hello I just can't anywhere find what height (μ) means in DBpedia.
For example LeBron James has dbo:weight 113400.000000 (xsd:double) and when I click on dbo:weight it is labeled as weight (g). So weight is in grams.
But for height: dbo:height …
Riomare
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1 answer
Filter for triples in default graph (outside all named graphs) with SPARQL
In the below query I extract all entities with class :Entity, regardless of whether they live inside a specific context (named graph) or not.
SELECT ?s
WHERE {
?s a :Entity .
}
I would like to filter among these entities, to keep only those…
gaspanic
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Neo4j Path sampling
I have CALL apoc.algo.allSimplePaths(A, B, '', 3) result that look like this:
[A –>relation1 –>B]
[A –>relation2 –>B]
[A –>relation2->C->relation 1–>B]
[A –>relation5->D->relation 3–>B]
[A –>relation2->Y->relation 1–>B]
[A –>relation2->E->relation…
user18602652
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1 answer
Neo4j, How to use match function in python when the targeted matching 'property' is a list?
I create a node in Neo4j, the node name is robot, the robots has a property, which is called 'capabilities'. For the capabilities, there is a list of all the capabilities for the robot. For example, the robot in the picture below has a capability…
James
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Find the indices of elements of a 2D Torch Tensor that appear in a (smaller) 2D Torch Tensor
I have two 2D Torch Tensors of high dimensions, but of different size. One is a (23462505, 3) tensor and the other one is a (30856, 3) tensor. Let us call them A and B respectively.
My goal is to find the indices of rows appearing in A that also…
elkmyr
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1 answer
How do I create a Neo4J multi-graph using gds.version() 1.7.2?
I want to project a subgraph that contains multiple nodes and relationship types. In gds 2.0 there is this (https://neo4j.com/docs/graph-data-science/current/graph-project/):
CALL gds.graph.project(
'personsAndBooks',
['Person', 'Book'], …
ChemBot
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1 answer
RandomLinkSplit not working with HeteroData
I am having some serious trouble with torch-geometric when dealing with my own data.
I am trying to build a graph that has 4 different node entities (of which only 1 bears some node features, the others are simple nodes), and 5 different edge type…
Sala
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1 answer
Unable to see Max in SPARQL Query
Im trying to query a knowledge graph and im trying print the max occurrence of ?n in the result and i have tried running following query but it just doesn't prints anything
here is my SPARQL Query
PREFIX :…
zaid saeed
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