HLFF Blog: A Mathematical Exchange of Gifts

Back Dec. 20, 2023 HLFF Blog

Check out the new HLFF Blog article by Katie Steckles, where she explores fun ways to mathematically and efficiently conduct your ‘Secret Santa’ gift-giving this year.

This week at the HLFF Blog, Katie Steckles embraces the spirit of the season and takes a look at the time-honored tradition of ‘Secret Santa’, where families, friends or colleagues all secretly get gifts for one another in their group. The method is usually pretty simple: everyone picks a name out of a Santa hat and then get a gift for that person. But what if you live further apart? Or, what if you and your mathematically inclined friends are looking for a way to spice up the ‘Secret Santa’ process? Check out the full article here:

HLFF Blog

Image caption: An exchange of gifts. Image credits: Julia Larson

News Overview Back

We use cookies and similar technologies on our website that are necessary for the website to function. Such necessary cookies are used in particular for the member login and the sending of forms. With your consent, we use analytical cookies to analyse the use of our websites under alumnode.org. This enables us to recognise errors or ambiguities in the operation of our website and to remedy them as quickly as possible. No data flows to third-party providers in connection with analytical cookies. In the settings, you will find detailed information about the individual cookies and the processing location, and you can refuse the use of cookies. The security of your data is our top priority. You can find more information on this in our privacy policy.

Adjust your cookie settings
You are able to adjust these settings at any time.

Essential Cookies

Necessary cookies are essential for the website to function properly. This category only contains cookies that guarantee the basic functions and security features of the website and therefore cannot be deactivated.

Show details

Description of the service
Session cookies for forms and member login

Processing company
Paulbergman GmbH (Alumnii)
Pappelallee 78/79, 10437 Berlin, Germany

Purpose of the data
Session-Cookies are set to enable the main features of the platform such as login or language choice. Analytic cookies are used to ensure the continuous improvement of the platform.

Technologies used
This list contains all the technologies that this service uses to collect data. Typical technologies are cookies and pixels placed in the browser.
This platform uses session cookies.

Collected data
This list contains all (personal) data collected by or through the use of this service.
Cookies on this platform collect information such as the user session and the language selected by the user. For a more detailed list of all data stored please consult the Privacy policy.

Legal basis
The following is the required legal basis for the processing of data.
Art. 6 Abs. 1 S. 1 lit. c DSGVO (Art. 6 para. 1 p. 1 lit. c DSGVO)

Place of processing
This is the primary location where the collected data is processed. If the data is also processed in other countries, you will be informed separately.
Paulbergman processes data on servers in Germany.

Retention period
The retention period is the period of time during which the collected data are stored for processing. The data must be deleted as soon as they are no longer needed for the specified processing purposes.
Collected data is stored as long as the user remains member of our platform. For users that are not member of the platform data is deleted after no more than 24 months.

Data recipient
The recipients of the data collected are listed below.
Paulbergman GmbH (Alumnii)

Storage information
Below you can see the longest potential storage time on a device set when using the cookie storage method.
Maximum limit for the storage of cookies: Session cookies are stored for up to 6 months.

Analytical Cookies

These cookies allow us to record the frequency of use and number of site users and site usage patterns, such as how long you stay on which page. We use the Matomo open source web analytics programme. The data is stored on German servers.

Show details

Processing company
Paulbergman GmbH (Alumnii)
Pappelallee 78/79, 10437 Berlin, Germany

Purpose of the data
This list represents the purposes of data collection and processing.
These cookies allow us to record the frequency of use and number of site users and site usage patterns, such as how long you stay on which page.

Technologies used
This list contains all the technologies that this service uses to collect data. Typical technologies are cookies and pixels placed in the browser.
We use the Matomo open source web analytics programme. The data is stored on German servers. For a detailed list of cookies stored see here.

Collected data
This list contains all (personal) data collected by or through the use of this service.
The cookie stores a unique identifier that allows us to record the frequency of visits and which websites where visited at which point in time. In addition, we store an anonymized form of the users IP address. For more information see here

Legal basis
The following is the required legal basis for the processing of data.
Art. 6 Abs. 1 S. 1 lit. c DSGVO (Art. 6 para. 1 p. 1 lit. c DSGVO)

Place of processing
This is the primary location where the collected data is processed. If the data is also processed in other countries, you will be informed separately.
Germany

Retention period
The retention period is the period of time during which the collected data are stored for processing. The data must be deleted as soon as they are no longer needed for the specified processing purposes.
We aggregate and anonymize data after a no more than 24 months.

Data recipient
The recipients of the data collected are listed below.
Paulbergman GmbH (Alumnii)

Storage information
Below you can see the longest potential storage time on a device set when using the cookie storage method and when using other methods.
Maximum limit for the storage of cookies: We use the default expiration times listed here.
Non-cookie storage: 24 month