graphmap | highly sensitive and accurate mapper | Genomics library

I'm trying to calculate the betweenness centrality of a city street network, using the Edge length property as weight, but it doesn't seem to work.

When I run without weights it gives the following results:

I'm trying to create a petgraph Graph from JSON data. The JSON contains the edges of the graph, the key represents the starting vertex and the value is a list of adjacent vertices. It's possible to generate a graph with a vector of edges.

I managed to create a Vec<(String, String))> but not a Vec<(&str, &str)> as expected.

This collection works logically as map but allows to lookup elements by its prefix. It consists of nested Maps in which every nested map corresponds to elements that matches next token of the key.

For example:

Lets have bar as a map key. Lets tokenize that bar int "subkeys": b,a,r. Then we would put value using following method (pseudocode)

1. From root map Map get bor put new Map if absent
2. From map from previous step get aor put new Map if absent
3. In map from previous step, set or replace value under key r

So prior to gremlin java 3.4 I used the following code to connect to a remote graph:

I'm currently trying to shade a quadratic inequality. For that I must be able to shade inside and/or outside of the determined curve. I have looked through JSXgraph documentation and I do not seem to see anything helpful to my problem.

This answer does not apply to my scenario.

The current code to create the curve:

I want to implement a graph data structure, where each node is represented by:

I'm trying to construct Map> from List, List>> pairs. But the problem i'm facing is that it is giving errors saying that Type mismatch: cannot convert from Map to Map>.

How should i enforce to return Map>

I am implementing RISK/Conquer game in JAVA. During the start-up phase of the game, I have to assign countries to each and every player. Just like distributing of cards from deck one by one to each player in the round-robin fashion.

The relation between Country and Player :

One Country has One Player (One to One)

One Player has Many Country (One to Many)

So far, this is my code:

Player.java

I've decided to parallelize a huge program I wrote and eventually I came across the new C++11 smart pointers.

I had a routine that should be executed many times (usually above 1000 times) that is somewhat expensive. It was ran in a dead simple for loop, what I did was to install this for loop in a method which would be ran by some worker threads.

Did it so, made some parameters wrapped by a std::shared_ptr, cared for race conditions, everything seemed fine.

But now, some times, process will be aborted and I am given one of the following errors:

Process finished with exit code 139 (interrupted by signal 11: SIGSEGV)

or

malloc.c:2395: sysmalloc: Assertion `(old_top == initial_top (av) && old_size == 0) || ((unsigned long) (old_size) >= MINSIZE && prev_inuse (old_top) && ((unsigned long) old_end & (pagesize - 1)) == 0)' failed.

All of these errors occur while the parallel for is ongoing; not before, not right in the beginning, not in the end, but somewhere in between, which smells me like a race condition not covered.

The program is huge, but I created a miniature of it that is able to reproduce the problem: