Use of CAIDA's Freely Available Datasets

CAIDA makes seven datasets freely available to anyone who wishes to download the data. This summary of the users of CAIDA's public datasets is updated daily.

| Overview: All Data Requests Freely Available Data Restricted Access Data |

| Specific Restricted Datasets: Macroscopic Topology Data Anonymized Internet Traces Backscatter Datasets Witty Worm Dataset DNS root/gTLD RTT Dataset |

Freely Available Dataset Requests

Data providers face a unique challenge in that requiring users to apply for data access discourages data use because some users find the application process too onerous and do not pursue data access. Yet justifying the significant resources necessary to serve data requires quantitative and demographic information about data users.

To strike a balance between these competing interests, CAIDA asks users of our public datasets to voluntarily provide any or all of their name, institution, email address, relationship to CAIDA, number of students, and intended use of the data. If users do not wish to provide this data, they can click on a a link to bypass the form and go directly to the data. Users can also submit a blank form to move on to the dataset.

Response Overview

Total submissions: 667

Earliest submission: December 1, 2006 15:19:02

Latest submission: October 13, 2008 08:04:48

Names: 401 (60.11%)

Institutions: 377 (56.52%)

Emails: 384 (57.57%)

Students Using Data: 1487 (average 2.22)

Dataset Chosen

AS Relationships Dataset 304

Skitter AS Links Dataset 218

Code-Red Worms Dataset 66

Witty Worm Public Dataset 40

IPv4 Routed /24 AS Links Dataset 38

Response by Day of the Week

Monday 135

Tuesday 116

Wednesday 132

Thursday 89

Friday 87

Saturday 44

Sunday 63

Who Requests Data

Academic Researcher/Student 404

Other 247

Government Researcher 5

CAIDA Sponsor 5

Government Agency 2

Academic Researcher/Student, CAIDA Sponsor 1

Academic Researcher/Student, Government Researcher 1

Government Researcher, Government Agency 1

Freely Available Datasets

For more information about CAIDA's publicly available datasets, see:

Dataset Description Release Date Data Access Link

IPv4 Routed /24 AS Links March 31, 2008 access data

AS Taxonomy April 13, 2006 access data

AS Relationships April 6, 2006 access data

Code-Red Worms February 1, 2006 access data

Witty Worm January 11, 2006 access data

Router Adjacencies May 23, 2004 access data

Skitter AS Links May 2004 access data

AS Rank April 2, 2004 access data

Dataset Description	Release Date	Data Access Link
IPv4 Routed /24 AS Links	March 31, 2008	access data
AS Taxonomy	April 13, 2006	access data
AS Relationships	April 6, 2006	access data
Code-Red Worms	February 1, 2006	access data
Witty Worm	January 11, 2006	access data
Router Adjacencies	May 23, 2004	access data
Skitter AS Links	May 2004	access data
AS Rank	April 2, 2004	access data

Freely Available Dataset Sponsors

National Science Foundation

Department of Homeland Security

Cisco Systems

WIDE Project

Limelight Networks

Defense Advanced Research Projects Agency