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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Nelson, M. Radhakrishnan, S. Chatterjee, A. Sekharan, C.N. |
| Copyright Year | 2015 |
| Description | Author affiliation: Sch. of Comput. Sci., Univ. of Oklahoma, Norman, OK, USA (Nelson, M.; Radhakrishnan, S.) || Dept. of Comput. Sci., Loyola Univ. Chicago, Chicago, IL, USA (Sekharan, C.N.) || Dept. of Comput. Sci., California State Univ. Dominguez Hills, Carson, CA, USA (Chatterjee, A.) |
| Abstract | Social networks are constantly changing as new members join, existing members leave, and `followers' or `friends' are formed and disappear. The model that captures this constantly changing graph is the streaming graph model. Given a massive graph data stream wherein the number of nodes is in the order of millions and the number of edges is the tens of millions, we propose a simple algorithm to compress this graph without having read in the entire graph into the main memory. Our algorithm uses the quadtree data structure that is implicitly constructed to produce the compressed graph output. As a result of this implicit construction, our algorithm allows for node and edge additions/deletions that directly modifies the output compressed graph. We further develop algorithms to solve edge queries (is there any between two nodes?) and node queries (for a given node, list all its neighbors) that directly operates on the compressed graph. We have performed extensive empirical evaluations of our algorithms using publicly available, large social networks such as LiveJournal, Pokec, Twitter, and others. Our empirical evaluation is based on several parameters including time to compress, memory required by the compression algorithm, size of compressed graph, and time and memory size required to execute queries. We have also presented extensions to the compression algorithm that we have developed. |
| Starting Page | 2409 |
| Ending Page | 2417 |
| File Size | 407954 |
| Page Count | 9 |
| File Format | |
| e-ISBN | 9781479999262 |
| DOI | 10.1109/BigData.2015.7364035 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2015-10-29 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Computer science Quadtree Image coding Streaming Graphs Social network services Graph Compression Online Social Networks Arrays Matrix converters Compression algorithms |
| Content Type | Text |
| Resource Type | Article |
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