Topology is the mathematical study of the properties that are preserved through deformations, twistings, and stretchings of objects. Tearing, however, is not allowed. A circle is topologically equivalent to an ellipse (into which it can be deformed by stretching) and a sphere is equivalent to an ellipsoid.
Questions tagged [topology]
377 questions
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How to retrieve conflicting location in shapely TopologicalError?
When trying to plot a 2D array in cartopy projected axes using contourf, I am receiving a TopologicalError. This is the code:
import cartopy.crs as ccrs
import matplotlib.pyplot as plt
import numpy as np
from shapely.geos import…
DRod07
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3
votes
1 answer
How to compute the diameter of 3D torus interconnect?
A 3D torus interconnect is a network topology having p^3 nodes where p > 2. A 3D torus is basically a 3D mesh with links connecting nodes on opposite faces (Am I right?).
The bisection width calculated by me comes out to be 2p^2. However, I am…
Shashank Kumar
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Kafka Streams : Stream Thread failed to lock State Directory
I am trying to test my Kafka Streams application. I have built a simple topology where I read from an input topic and store the same data in a state store.
I tried writing unit tests for this topology using TopologyTestDriver. When I run the test, I…
Harsha Chittepu
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RabbitMQ queue per message type vs queue per destination
which set up would you implement:
a queue per destionation
a queue per message type
Some informations to my set-up:
Producers are Macro-Services (they produce messages (different tyoes) to a fanout exchange)
Consumers are also Macro-Services…
nusmanov
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1 answer
Software to visually represent telecommunications networks
I am working on some software tools used for the design and optimization of telecoms networks: routing, capacity allocation and topology.
To represent the network nodes and interconnecting links I currently use standard MFC calls to draw things like…
AndyUK
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1 answer
Is there a way to change a neural network's topology in DL4J without having to retrain it?
I need to make changes to an existing deeplearning4j (DL4J) model that has already been trained. The network consists of an input layer, one Graves LSTM and one RNN Output Layer.
My question is: Is it possible to add one or more untrained neurons…
Edy Bourne
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1 answer
Converting Adjacency Matrix to Abstract Simplicial Complex
I have a graph as represented by an adjacency matrix and I would like to convert that into an abstract simplicial complex (that is, a list of all vertices, edges, triangles, tetrahedrons...) in order to do some topology computations on the graph.…
LivingRobot
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What does each definition in configtx.yaml means in Hyperledger fabric v1.0?
This is related to Hyperledger fabric v1.0 network topology.
From the example, configtx.yaml contains following definitions:
Profiles:
TwoOrgsOrdererGenesis:
Orderer:
<<: *OrdererDefaults
Organizations:
…
Malavan
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3
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3 answers
Simplified province generation
I need some clever and rather simple solution to my problem - province shape generation.
Suppose that map is matrix NxM. Each cell is represented by natural number. 0 means that tile does not belong to any province. numbers 1 means that it belongs…
dfens
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Function or loop using table and topologies names as arguments in Postgresql
I'm working with topologies in PostGIS and to create a TopoGeometry column, I'm using this loop:
DO $$DECLARE r record;
BEGIN
FOR r IN SELECT * FROM table_uf_11 LOOP
BEGIN
UPDATE table_uf_11 SET tg_geom =…
Roberto
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3
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4 answers
"No module named" error in Apache Storm Python Bolt
I am getting the following error message when I try to locally run a Storm topology with a single bolt implemented in python. I am doing everything like in the example of WordCountTopology in storm-starter kit but it fails to load the modules like…
Erol
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How to read Apache Storm topology Results
I'm new in Apache Storm and I installed in my Windows 8 successfully. I started the topology WordCount locally to test it and it worked fine. However, I want to know what are the words? and what are their counts exactly? and so, Where can I read…
sakurami
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votes
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Plotting of Network Topology graph based on json input
I want to draw network topology graph with Highchart or any other js library by proving json data as input . While going through the example at http://www.highcharts.com/demo/renderer for Topology plot requirement , I found that it is static and…
Nishith Kant Chaturvedi
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how can i choose image/picture for my nodes in gexf or networkx
my project's aim is to generate a network diagram, I've made a program that creates objects as swicth and nodes in python then it generates a gexf file and my question is :
Can everybody tell me if he knows a way that allow us to choose a node image…
Benn-x
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How can I get storm topology status via java code?
I'm very new at storm. I want to manage two topology which they need to inform about their status. Is it impossible that I understand status of topology is deactivated or not to submit another one in java class?
sahar shokouhi
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