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- 2015-03-03: Monthly snapshot releases
The dblp data set (found at dblp.dagstuhl.de/xml/) is studied or used as a benchmark in many scientific publications. However, due to the daily updates to dblp, it can be sometimes difficult to reproduce experimental results made on earlier versions. To remedy this problem, starting from today, dblp will provide and archive stable monthly snapshot releases of the dblp data set. We encourage you to use these snapshot releases for your experiments and to cite their persistent URLs in published articles to. You can find the archived dblp data snapshots at dblp.dagstuhl.de/xml/release/.
- 2014-11-24: dblp reaches new milestones
Since the last weekend, the dblp computer science bibliography lists more than 2.8 million publications . See also more statistics about dblp.
- 2014-11-17: dblp usage statistics
We often receive questions like "How many users are using dblp?" or "How many hits do you get per day?" While we do not have a live statistic for these questions like the one we have for our data stock (yet) we can of course share the usage statistics we learn from our web server's log files.
There are three "official" dblp servers which are updated and synchronized on a daily basis:
- server Trier 1: http://informatik.uni-trier.de/~ley/db
- server Trier 2: http://dblp.uni-trier.de/
- server Dagstuhl: http://dblp.dagstuhl.de/
These servers do show a very different rate of usage, with Trier 1 being the by far most widely known URL. This is of course due to the fact that server Trier 1 is ranked so highly by Google. Server Trier 1 is currently still hosting the old dblp web system, while servers Trier 2 and Dagstuhl are already hosting a beta version of the brand new web system. (A full update to the new web system is scheduled for early 2015.)
The following figures have been collected during October 2014. These figures ignore the traffic caused by known bots and crawlers.
Average number of user sessions (visits) per day on server ...
- Trier 1: 27,194 sessions
- Trier 2: 4,653 sessions
- Dagstuhl: 602 sessions
Average number of page views per day on server ...
- Trier 1: 192,972 pages
- Trier 2: 53,701 pages
- Dagstuhl: 16,638 pages
Average number of page views per user session on server ...
- Trier 1: 7.1 pages per session
- Trier 2: 11.5 pages per session
- Dagstuhl: 27.6 pages per session
Total number of distinct users (i.e., IPs) in October 2014 on server ...
- Trier 1: 430,890 IPs
- Trier 2: 74,818 IPs
- Dagstuhl: 6,782 IPs
Total amount of data served in October 2014 (in parenthesis: including bots) on server ...
- Trier 1: 999.1 GB (4,166.2 GB)
- Trier 2: 220.7 GB ( 397.5 GB)
- Dagstuhl: 26.8 GB ( 36.3 GB)
- 2014-08-06: Another milestone reached
dblp now indexes over 2.7 million computer science publications. For an overview of the development of the dblp data set, have a look at our statistics pages.
- 2014-07-02: H. Vincent Poor is the first to reach 1000 records
Harold Vincent Poor, dean of the School of Engineering and Applied Science at Princeton University, is the first person to reach 1000 records in dblp. The 1000th record has been reached with the addition of the latest issue of the IEEE Transactions on Signal Processing to dblp
You may download the raw dblp data in a single XML file. A simple DTD is available. The paper DBLP - Some Lessons Learned documents technical details of this XML file. In the appendix DBLP XML Requests you may find the description of a primitive dblp query API. The data released under the ODC-BY 1.0 license.