perClass Frequently Answered Questions

General

What is perClass?

perClass is a professional pattern recognition software for design of classification algorithms and their deployment in applications. It consists of two parts, namely the Matlab toolbox for design of classifiers and the perClass runtime library written in ANSI C for execution of trained classifiers outside Matlab in your applications.

What is PRSD Studio and what does PRSD mean?

PRSD Studio is the old name of the software. PRSD Studio 3.0 has been renamed perClass. PRSD abbreviation stands for Pattern Recognition System Design which denotes systematic iterative process of deriving robust classification solutions.

What other software I need to use perClass?

For the design Matlab 7.5 or higher is required. For the execution you don't need any additional library. perClass library is fully self-contained.

What platforms does perClass support?

MS Windows 32-bit/64-bit, GNU/Linux x86 32-bit/64-bit, Mac OS X 32-bit/64-bit

Is perClass based on PRTools?

No. PRTools is an academic toolbox for pattern recognition, developed at PRLab at TU Delft in the Netherlands. perClass does not use any code from PRTools and is not dependent on PRTools.

Can I use PRTools with perClass?

Yes, we (PR Sys Design) are committed to provide seamless integration of perClass with PRTools. You may, for example, leverage our interactive scatter plot on PRTools datasets, or perform ROC analysis of PRTools classifiers in perClass. Many PRTools classifiers may be also directly executed outside Matlab using perClass library.

What is the connection between PR Sys Design and TU Delft?

PR Sys Design was founded in 2006 by Dr.Pavel Paclik, at that time a researcher at TU Delft. Pavel participated in development of PRTools between 2000 and 2006. perClass team continues to collaborate with TU Delft by teaching in the industrial courses, and sponsoring/maintaining the community forum for PRTools.

Can I develop on one platform (Windows, Linux, Mac) and deploy on another?

Yes. perClass is fully cross-platform. You may train and export classifier for deployment on one platform and execute the classifier on any other supported platform.

Can I distribute/sell the applications using perClass library?

Yes. With commercial editions of perClass, you can re-distribute the perClass library and classifiers you train. We offer two types of deployment licenses: Deployment dongle purchased per machine, and the royalty free buy-out option.

Can my competitors extract my classifiers from the pipeline files?

No. Pipeline files are encrypted with industry-standard encryption technology.

Licensing /sales

Can I test the software before I buy it?

Yes. You can download perClass Lite and use it freely for non-commercial purposes. This version is limited to datasets of 300 samples and 3 classes and does not include perClass runtime library. Request a demo if you would like to evaluate the fully-functional version of perClass.

Is there any money-back guarantee option available?

Yes. We provide 30 days money back guarantee.

Do I need to pay Value Added Tax (VAT) and how much is it?

PR Sys Design is a company based in the Netherlands. If you're a company based in the Netherlands, you will need to pay 19% BTW tax. If you're a private person living inside any European Union member state, the price will include 19% of Dutch VAT (BTW) tax.

What happens if I don't extend the update plan after one year?

You won't be able to use perClass version released after the update expiration date. All perClass versions released before the update expiration date will remain fully functional. Without the active update plan, you will not be able to export new classifiers for deployment. Classifiers already running in your products/applications keep working indefinitely.

Can I get the source code of perClass library?

We do not provide source code of the complete perClass runtime library. However, for the commercial customers developing embedded pattern recognition systems, we offer a solution which delivers source code of specific trained classifiers. Please contact us for details on commercial source-code licensing.

Support

I have found a bug, what should I do?

Please post the detatls in our forum so we can fix it.

I need extra help with the software. Do you provide support?

Yes. The commercial fee includes up to two hour support helping you to get up and running with the software. For community support, please visit our forum. To purchase additional support, contact us at support@perclass.com

Consultancy/Contracting

I need help in designing classifiers for my applications. Can you help me?

Yes, we provide the consulting/contracting services helping industrial and academic researchers to perform initial feasibility studies and prototype classifiers for their applications. Contact us to discuss your problem in detail.

I need a specific algorithm implemented. Will you add it to the library?

If the algorithm is general enough and interesting for other users, we will try to include it into our development road map. Alternatively, we may also implement algorithms on a consultancy/contracting basis please contact us at info@prsysdesign.net

I need to speed-up a given algorithm, will you help me?

Yes. Optimization of algorithm speed may be done as a consultancy/contracting work.