The HDF Community

With MyIRE and HDF, everyone from a doctor in a small-town office to big data genetics researchers can work together to find new and powerful insights across data sets using a common set of tools - and do so in a repeatable way. And, because of HDF5, any user—whether large or small—is powered by the same technology used by CERN and NASA. We knew we wanted all of MyIRE’s users to have the power of NASA in their pocket. HDF5 made that possible....

Reproducibility in computing has important impacts in data sets of all shapes and sizes.  HDF provides high throughput interfaces to data sets in a reproducible way. Using HDF allows MyIRE users to analyze data across experiments and domains.  Methods, techniques, and case studies for using and increasing access to HDF will be presented. Please join us for a webinar with the team at MyIRE on Tuesday, February 12th, at 10:00 a.m. CST. Register now!...

Join The HDF Group for a webinar consisting of three short presentations from the HDF5 community to learn about different approaches and exciting work being done by the HDF5 C++ community members. Steven Varga, Martin Shetty and Eugen Wintersberger, and Marc Paterno and Chris Green will share their vision for and experiences using HDF5 with C++....

We are pleased to announce the launch of The HDF Group’s new web-based Service Desk. The Service Desk (https://help.hdfgroup.org) is now available to the entire HDF community to submit issues, help requests, and bug reports....

After many requests, we are happy to announce we have opened our bug tracker to the community. The HDF Group has used Jira to record bugs, issues, and feature requests for many years, giving ticket numbers (usually HDFFV-#####) out, with no self-service way for users to follow-up on those tickets....

The HDF Group is pleased to announce the appointments of Jessica Popp, Senior Director of Engineering at SendGrid and E.G. Nadhan, Chief Technology Strategist, Central Region, Red Hat to the HDF Group Board of Directors....

Today, I am writing to all of you to announce the launch of both a Community Edition (CE) and a subscription-based Enterprise Support Edition (ESE) for HDF5. This model is similar to Red Hat, Lustre, and other open source projects. We are moving down this pathway to address the challenges that continuously face us in achieving sustainability and increasing community involvement....

Scot Martin, Harvard University, HDF Guest Blogger HDF5 storage is really interesting. To me, its format has no fixed structure, but instead is based on introspection and discovery. Seems great to me; Mathematica has its origins first in artificial intelligence, so we ought to be able to do something here.  Approaching twenty-two years with Mathematica and almost a “Hello, World!” ability in C, I decided to jump right in. Enter The HDF Group's P/Invoke for my salvation. Here’s how we make use of it in Mathematica: LoadNETAssembly["HDF.PInvoke.dll"] Bang! Ready to go in Mathematica. Here’s a proof of concept for how it works: Module[ (* The three symbols should have initial values so that there is *) (* memory allocation when Mathematica interfaces with P/Invoke. *) {major=0,minor=0,revision=0,return}, CompoundExpression[ (* access...

Christian Hoene, Symonics GmbH; and Piotr Majdak, Acoustics Research Institute; HDF Guest Bloggers Spatial audio - 3D sound.  Back in the ‘70’s, “dummy head” microphones were used to create spatial audio recordings. With headphones, one was able to listen to those recordings and marvel at the impressive spatial distribution of sounds – just like in real life. [caption id="attachment_11132" align="aligncenter" width="624"] Displays the difference between listening to a real source and listening to realistic virtual sounds via headphones[/caption] Nowadays, we have a much better understanding of the human binaural perception and we can even simulate spatial audio signals with the help of computers.  Indeed, a modern virtual reality (VR) headset such as the Oculus Rift or Samsung Gear utilizes 3D audio to allow...

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