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Context of Experience Michael Riegler, Martha Larson, Concetto Spampinato, Jonas Markussen, Pål Halvorsen, Carsten Griwodz, Konstantin Pogorelov

MediaEval 2015 - Introduction to a Task on Context of Experience: Recommending Videos Suiting a Watching Situation

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Page 1: MediaEval 2015 - Introduction to a Task on Context of Experience: Recommending Videos Suiting a Watching Situation

Context of ExperienceMichael Riegler, Martha Larson, Concetto Spampinato, Jonas

Markussen, Pål Halvorsen, Carsten Griwodz, Konstantin Pogorelov

Page 2: MediaEval 2015 - Introduction to a Task on Context of Experience: Recommending Videos Suiting a Watching Situation

We had an idea about intentbut…

Page 3: MediaEval 2015 - Introduction to a Task on Context of Experience: Recommending Videos Suiting a Watching Situation

Make a task for Mediaeval…

Page 4: MediaEval 2015 - Introduction to a Task on Context of Experience: Recommending Videos Suiting a Watching Situation

Wait… What is this Mediaeval?

Page 5: MediaEval 2015 - Introduction to a Task on Context of Experience: Recommending Videos Suiting a Watching Situation

What most of you might think…

Page 6: MediaEval 2015 - Introduction to a Task on Context of Experience: Recommending Videos Suiting a Watching Situation

What I thought…

Page 7: MediaEval 2015 - Introduction to a Task on Context of Experience: Recommending Videos Suiting a Watching Situation

What my girlfriend thinks (and Google apparently)…

Page 8: MediaEval 2015 - Introduction to a Task on Context of Experience: Recommending Videos Suiting a Watching Situation

Media Eval = Benchmark

Page 9: MediaEval 2015 - Introduction to a Task on Context of Experience: Recommending Videos Suiting a Watching Situation

Make a task…lets…

add -> planes give -> situation

context -> recommender systems

Page 10: MediaEval 2015 - Introduction to a Task on Context of Experience: Recommending Videos Suiting a Watching Situation

“The world as we have created it is a process of our thinking. It cannot be changed without changing

our thinking.”–Albert Einstein

Page 11: MediaEval 2015 - Introduction to a Task on Context of Experience: Recommending Videos Suiting a Watching Situation

Context of ExperienceRecommending Videos Suiting a Watching Situation

Page 12: MediaEval 2015 - Introduction to a Task on Context of Experience: Recommending Videos Suiting a Watching Situation

Goals of the taskExplore suitability of video content

Watched in a certain situation

In this case airplanes

small screens, distractions…

Classify in “good” or “bad” to be watched on an airplane

Page 13: MediaEval 2015 - Introduction to a Task on Context of Experience: Recommending Videos Suiting a Watching Situation

Videohttps://www.youtube.com/watch?v=TxC3OV9dBeo

Page 14: MediaEval 2015 - Introduction to a Task on Context of Experience: Recommending Videos Suiting a Watching Situation

Runs (tasks)

Use all information available

Content (visual, audio…)

Metadata (ratings, comments…)

More…

Page 15: MediaEval 2015 - Introduction to a Task on Context of Experience: Recommending Videos Suiting a Watching Situation

DatasetMovies collected from KLM over 3 month

Crowdsourced user opinions

Only Workers that have experience

Ranking of videos to get consent

Page 16: MediaEval 2015 - Introduction to a Task on Context of Experience: Recommending Videos Suiting a Watching Situation

Dataset detailsAround 300 movies

Split into test and train set (30/70)

Metadata (names, ratings…)

Audio features

Visual features

Links to videos

Page 17: MediaEval 2015 - Introduction to a Task on Context of Experience: Recommending Videos Suiting a Watching Situation

First experimentsUsed Data Precision Recall F1-score

Metadata 0,581 0,6 0,583

User ratings 0,371 0,609 0,461

Visual information 0,447 0,476 0,458

Meta without user ratings 0,524 0,516 0,519

Page 18: MediaEval 2015 - Introduction to a Task on Context of Experience: Recommending Videos Suiting a Watching Situation

First experimentsUsed Data Precision Recall F1-score

Metadata 0,581 0,6 0,583

User ratings 0,371 0,609 0,461

Visual information 0,447 0,476 0,458

Meta without user ratings 0,524 0,516 0,519

Page 19: MediaEval 2015 - Introduction to a Task on Context of Experience: Recommending Videos Suiting a Watching Situation

First experimentsUsed Data Precision Recall F1-score

Metadata 0,581 0,6 0,583

User ratings 0,371 0,609 0,461

Visual information 0,447 0,476 0,458

Meta without user ratings 0,524 0,516 0,519

Page 20: MediaEval 2015 - Introduction to a Task on Context of Experience: Recommending Videos Suiting a Watching Situation

First experimentsUsed Data Precision Recall F1-score

Metadata 0,581 0,6 0,583

User ratings 0,371 0,609 0,461

Visual information 0,447 0,476 0,458

Meta without user ratings 0,524 0,516 0,519

Page 21: MediaEval 2015 - Introduction to a Task on Context of Experience: Recommending Videos Suiting a Watching Situation

First experimentsUsed Data Precision Recall F1-score

Metadata 0,581 0,6 0,583

User ratings 0,371 0,609 0,461

Visual information 0,447 0,476 0,458

Meta without user ratings 0,524 0,516 0,519

Page 22: MediaEval 2015 - Introduction to a Task on Context of Experience: Recommending Videos Suiting a Watching Situation

Interesting insightsNo correlation between popular ranking sites (IMDB, Metacritic…) and what people like

Some genres are favourite (Comedies, Family movies leading)

Page 23: MediaEval 2015 - Introduction to a Task on Context of Experience: Recommending Videos Suiting a Watching Situation

Current state

First year of the task

Many people are interested

Submitted dataset paper to MMSys

Page 24: MediaEval 2015 - Introduction to a Task on Context of Experience: Recommending Videos Suiting a Watching Situation

Planed ImprovementsGet more data

Add more features

Collect data from people that are actually flying (maybe researchers are a good choice)

Include a subtask for the recommendation part

Page 25: MediaEval 2015 - Introduction to a Task on Context of Experience: Recommending Videos Suiting a Watching Situation

Thank you!And if you are interested we are always looking for help ;-)