README.md

Fully Dynamic Distance Query

This is an implementation of a distance query algorithm on massive dynamic networks (CIKM '16). This implementation enables you to efficiently compute exact point-to-point distance on dynamic large complex networks (social networks, web graphs, co-author networks). If you have interest in our method and experimental results, please see our paper.

Usage

CUI

We can use our CUI as the following:

$ ./waf configure
$ ./waf
$ ./bin/dynamic_distance_query --graph_file sample/graph.txt --query_file sample/query.txt --undirected
5
2
7
1
2
6
Invalid op DUMMY, skipping it

You can see the format of input graph file and query file from https://github.com/flowlight0/dynamic-distance-query/blob/master/sample/graph.txt and https://github.com/flowlight0/dynamic-distance-query/blob/master/sample/query.txt, respectively.

Benchmarker

Theare are two benchmarkers for examining the performance of our algorithm. https://github.com/flowlight0/dynamic-distance-query/blob/master/src/cui/benchmark_various_search_strategy_main.cpp is a benchmarker for comparing the querying efficiency of several search strategies in static settings. https://github.com/flowlight0/dynamic-distance-query/blob/master/src/cui/benchmark_dynamic_update_main.cpp is a benchmarker for the performance of our method with various index size reduction parameter in dynamic settings. For example, we can run ./bin/benchmark_various_search_strategy and ./bin/benchmark_dynamic_update with the following commands.

$ ./bin/benchmark_various_search_strategy --graph_file=data/samplegraph.txt --num_bfs_queries=100 --num_bibfs_queries=1000 --undirected
$ ./bin/benchmark_dynamic_update --graph_file=data/samplegraph.txt --undirected --num_updates=5

These benchmark scripts generate json files containing results of benchmarks. Since two benchmarkers are only assuming undirected graphs. If you forget to add --undirected option, they might give unexpected results.

Reference

Takanori Hayashi, Takuya Akiba, and Ken-ichi Kawarabayashi. Fully Dynamic Shortest-Path Distance Query Acceleration on Massive Networks. CIKM'16

Contact

If you have questions or find errors, please contact to me (flowlight0 at gmail.com)