Amazon Instant Video

Amazon Instant Video is an Internet video on demand service by Amazon. Amazon Prime members have free access to the database of tv shows and films. The VoD service is divided into the subscription domain of Prime Instant Video and the Pay-per View domain of Instant Video Shop for latest offerings.


Arte is a public TV broadcaster that is organised in a French-German corporation. The channel's main focus are topics such as politics, culture, education and arts. Arte+7 is a free online streaming service, that catalogs their program 7 days after it aired on TV.

Big Data

Big Data is referring to data sets, that are too big or complex to analyze them with conventional methods of data processing. Further Big Data combines aspects of new technology and innovative forms of information processing to get deeper insights for decision making.


CES (Consumer Electronics Show) is a global consumer electronics and consumer technology tradeshow that takes place every January in Las Vegas, Nevada. In 2014 Tweek visited Las Vegas for the first time and presented the Taste Profiler at CES.


Cinematch is Netflix inhouse recommender algorithm. In 2009 Netflix conducted an open competition with a winning prize of 1 Million Dollars for the person who could improve the score of the Netflix algorithm.

The Cold Start Problem

The Cold Start Problem refers to recommendations for novel users or new items. Regarding new users, the system does not have information about their preferences in order to make valid recommendations regarding new items. Tweek solves this problem by fetching valuable data from the Social Graph API when the user logs in via Facebook.

Collaborative Filtering

Collaborative Filtering is a recommendation approach based on the idea to exploit information about the past behaviour or the opinions of a user community for predicting which items the current user of the system will most likely be interested in.

Content Based Filtering

Content Based Filtering is a recommendation algorithm that is based on a description of an item and a profile of the user’s preference. This approach recommends items that are similiar to those that a user has liked, disliked, bookmarked and shared in the past.


EPG (Electronic Program Guide) is an application used with digital set-top boxes and newer television sets to list current and scheduled programs that are or will be available on each channel and a short summary or commentary for each program.

Facebook F8

Facebook F8 is a mostly-annual conference held by Facebook in San Francisco, aiming to developers and entrepeneurs who build products and services around the platform.

The Filter Bubble

The Filter Bubble is an outcome of a personalized search, where the algorithm selectively guesses what information a user would like to see based on information about the user (such as location, past click-behaviour and search history), effectively segregating the users in their own cultural and interest bubbles. Tweek solves this problem by adding valuable data from social streams to the consumption behaviour seen on the entertainment services.

Google Freebase

Google Freebase is a large online database of collaborative collected structured data. The goal of this intensive collection is to create a global resource, so that people and machines have access to common information more easily. In Tweek's case the Freebase database provides information on meta-data such as actor, director, origin, runtime, etc. on movies, series or documentaries.

Graph API

Graph API is the core of the Facebook Platform , enabling developers to read from and write data into Facebook. Tweek uses the Graph API to match an user’s preference to specific content.

Graph Based Filtering

Graph Based Filtering is a recommendation approach, that is based on a graph model and links similiar items with nodes and edges. Tweek connects signals from social networks such as Facebook or Twitter and item relations from its Graph database integration, therefore Tweek is able to extend a given user profile within seconds by on average 1,200 relevant data points on login.


Hulu is an American online company and ad-supported internet video service that offers a selection of TV shows, clips and movies. In 2010 Hulu Plus, a paid online streaming service, was added to the Hulu family.

Hybrid Recommendation Systems

Hybrid Recommendation Systems are a combination of different recommender algorithms such as Collaborative Filtering, Graph Based Filtering, Content Based Filtering, that lead to better results.


IBC (International Broadcasting Convention) is an annual event for professionals engaged in the creation, management and delivery of entertainmend and news content worldwide.


IFA (Internationale Funkausstellung) is the worldwide renowned annual event in Berlin for Consumer Electronics and Home Appliances.


IMDb (Internet Movie Database) is an online database of information related to films, television programs and video games, including cast, production, crew, trivia, reviews and ratings.

Item-to-item Filtering

Item-to-item Filtering is a recommendation algorithm, that encodes Graph-based content similarities for related movies and TV shows.


Maxdome is a video on demand service of the ProSiebenSat.1 Media group.

Meta Data

Meta-Data summarizes basic information about items (such as title, cast, director), which can make finding and working with particular instances of data easier.


Millennials or Generation Y is the description for the age group of people born from the early 1980s to the early 2000s, that share the same characteristics of growing up in an electronics-filled and increasingly online and socially-networked world.


Myvideo is a video platform of the ProSiebenSat1 Media Group , consisting of 3,8 million clips.

NAB Show

NAB Show is an annual trade show held by the National Association of Broadcasters that takes place in Las Vegas. The conference’s headline is “Where Content Comes to Life”.


Netflix started out as a DVD renting company and is now a provider of on-demand Internet streaming media.


Personalization involves using technology to accommodate the differences between individual users.

ProSiebenSat1 Media

ProSiebenSat1 Media is the parent company uniting German TV Channels such as ProSieben, SAT. 1, kabel eins, sixx and the video platform Myvideo .

Recommender Systems

Recommender Systems seek to predict the rating or preference that a user would give to an item such as movies, series, music clips and products.

Rovi Corp

Rovi Corp is a company based in the United States whose patents, products and technologies are involved in the navigation, discovery, and search recommendations on millions of devices worldwide. Rovi Corp partnered up with Tweek for CES 2014.

Second Screen

Second Screen is the use of an additional device (tablet, smartphone) while watching television. It allows the audience to interact with what they’re consuming.


Sky is the leading pay-TV provider in Germany and Austria with more than 4.1 million subscribers.

Sky Snap

Snap is the subscription based video on demand service of the Sky family.

Social Network Analytics

Social Network Analytics is the analysis of social structures through the use of network and graph theories. It characterizes networked structures in terms of nodes (users, content) and the edges (relationships or interactions).

Subscription Video on Demand

Subscription Video on Demand (SVOD) is a service consisting pay systems, which charges their subscribers a monthly fee for accessing a database of unlimited content.

Taste Profiler

Taste Profiler is the API of Tweek, that is filtering the social web and offering instant personalisation of entertainment services through social network analytics technology.

Video on Demand

Video on Demand are services that allow users to select and watch video content when they want to, instead of relying on broadcast times of TV programs.


Watchever is the video on demand platform of Vivendi SA, the biggest French media company.