À propos de ce cours : This course, which is designed to serve as the first course in the Recommender Systems specialization, introduces the concept of recommender systems, reviews several examples in detail, and leads you through non-personalized recommendation using summary statistics and product associations, basic stereotype-based or demographic recommendations, and content-based filtering recommendations. After completing this course, you will be able to compute a variety of recommendations from datasets using basic spreadsheet tools, and if you complete the honors track you will also have programmed these recommendations using the open source LensKit recommender toolkit. In addition to detailed lectures and interactive exercises, this course features interviews with several leaders in research and practice on advanced topics and current directions in recommender systems.
Les destinataires de ce cours : This course is appropriate for learners who have a basic understanding of statistics. It can be useful both for those exploring applied machine learning and data mining, and for those focused on technology-supported marketing and commerce.
Créé par : University of Minnesota
Enseigné par : Joseph A Konstan, Distinguished McKnight Professor and Distinguished University Teaching Professor
Computer Science and EngineeringEnseigné par : Michael D. Ekstrand, Assistant Professor
Dept. of Computer Science, Boise State University
| Informations de base | Cours 1 de 5 dans Recommender Systems Specialization |
| Niveau | Intermédiaire |
| Engagement | 4 weeks; an average of 3-7 hours per week, plus 2-5 hours per week for honors track. |
| Langue | English |
| Matériel requis | For honors track must be able to run substantial computations using Java (e.g., 4GB or more ram). |
| Comment réussir | Réussissez tous les devoirs notés pour terminer le cours. |
| Notes des utilisateurs |
Programme de cours
SEMAINE 1
Preface
This brief module introduces the topic of recommender systems (including placing the technology in historical context) and provides an overview of the structure and coverage of the course and specialization.
2 vidéos, 1 lectures
- Vidéo: Intro to Course and Specialization
- Reading: Notes on Course Design and Relationship to Prior Courses
Introducing Recommender Systems
This module introduces recommender systems in more depth. It includes a detailed taxonomy of the types of recommender systems, and also includes tours of two systems heavily dependent on recommender technology: MovieLens and Amazon.com. There is an introductory assessment in the final lesson to ensure that you understand the core concepts behind recommendations before we start learning how to compute them.
9 vidéos, 2 lectures
- Vidéo: Preferences and Ratings
- Vidéo: Predictions and Recommendations
- Vidéo: Taxonomy of Recommenders I
- Vidéo: Taxonomy of Recommenders II
- Vidéo: Tour of Amazon.com
- Vidéo: Recommender Systems: Past, Present and Future
- Reading: About the Honors Track
- Vidéo: Introducing the Honors Track
- Vidéo: Honors: Setting up the development environment
- Reading: Downloads and Resources
Noté: Closing Quiz: Introducing Recommender Systems
Noté: Honors Track Pre-Quiz
SEMAINE 2
Non-Personalized and Stereotype-Based Recommenders
In this module, you will learn several techniques for non- and lightly-personalized recommendations, including how to use meaningful summary statistics, how to compute product association recommendations, and how to explore using demographics as a means for light personalization. There is both an assignment (trying out these techniques in a spreadsheet) and a quiz to test your comprehension.
7 vidéos, 5 lectures
- Vidéo: Summary Statistics I
- Vidéo: Summary Statistics II
- Reading: External Readings on Ranking and Scoring
- Vidéo: Demographics and Related Approaches
- Vidéo: Product Association Recommenders
- Reading: Assignment 1 Instructions: Non-Personalized and Stereotype-Based Recommenders
- Vidéo: Assignment #1 Intro Video
- Reading: Assignment Intro: Programming Non-Personalized Recommenders
- Vidéo: Assignment Intro: Programming Non-Personalized Recommenders
- Reading: LensKit Resources
- Reading: Rating Data Information
Noté: Assignment #1: Response #1: Top Movies by Mean Rating
Noté: Assignment #1: Response #2: Top Movies by Count
Noté: Assignment #1: Response #3: Top Movies by Percent Liking
Noté: Assignment #1: Response #4: Association with Toy Story
Noté: Assignment #1: Response #5: Correlation with Toy Story
Noté: Assignment #1: Response #6: Male-Female Differences in Average Rating
Noté: Assignment #1: Response #7: Male-Female differences in Liking
Noté: Non-Personalized Recommenders
Noté: Programmming Non-Personalized Recommenders
SEMAINE 3
Content-Based Filtering -- Part I
The next topic in this course is content-based filtering, a technique for personalization based on building a profile of personal interests. Divided over two weeks, you will learn and practice the basic techniques for content-based filtering and then explore a variety of advanced interfaces and content-based computational techniques being used in recommender systems.
8 vidéos
- Vidéo: TFIDF and Content Filtering
- Vidéo: Content-Based Filtering: Deeper Dive
- Vidéo: Entree Style Recommenders -- Robin Burke Interview
- Vidéo: Case-Based Reasoning -- Interview with Barry Smyth
- Vidéo: Dialog-Based Recommenders -- Interview with Pearl Pu
- Vidéo: Search, Recommendation, and Target Audiences -- Interview with Sole Pera
- Vidéo: Beyond TFIDF -- Interview with Pasquale Lops
SEMAINE 4
Content-Based Filtering -- Part II
The assessments for content-based filtering include an assignment where you compute three types of profile and prediction using a spreadsheet and a quiz on the topics covered. The assignment is in three parts -- a written assignment, a video intro, and a "quiz" where you provide answers from your work to be automatically graded.
2 vidéos, 3 lectures
- Reading: Content-Based Recommenders Spreadsheet Assignment (aka Assignment #2)
- Reading: Tools for Content-Based Filtering
- Reading: CBF Programming Intro
- Vidéo: Honors: Intro to programming assignment
Noté: Assignment #2 Answer Form
Noté: Content-Based Filtering
Noté: CBF Programming Assignment
Course Wrap-up
We close this course with a set of mathematical notation that will be helpful as we move forward into a wider range of recommender systems (in later courses in this specialization).
2 vidéos, 1 lectures
- Reading: Related Readings
- Vidéo: Psychology of Preference & Rating -- Interview with Martijn Willemsen
FAQ
Comment cela fonctionne
课程作业
每门课程都像是一本互动的教科书，具有预先录制的视频、测验和项目。
来自同学的帮助
与其他成千上万的学生相联系，对想法进行辩论，讨论课程材料，并寻求帮助来掌握概念。
证书
获得正式认证的作业，并与朋友、同事和雇主分享您的成功。
Créateurs
University of Minnesota
The University of Minnesota is among the largest public research universities in the country, offering undergraduate, graduate, and professional students a multitude of opportunities for study and research. Located at the heart of one of the nation’s most vibrant, diverse metropolitan communities, students on the campuses in Minneapolis and St. Paul benefit from extensive partnerships with world-renowned health centers, international corporations, government agencies, and arts, nonprofit, and public service organizations.
Tarification
| Acheter le cours | |
|---|---|
| Accéder au contenu du cours | Disponible |
| Accéder au contenu noté | Disponible |
| Recevoir une Note Finale | Disponible |
| Obtenir un Certificat de Cours partageable | Disponible |
Notation et examens
Very informative, very well organized. Especially like the questions like "Which domain would this technique most likely to apply".
Some areas of improvement to consider
The overall pace of the content delivery in various lectures could be increased. Tends to get very slow at times
More hands on exercises would be useful
Programming exercise in Python or Python based frameworks would bee useful
I would like to have more detail and help for honors track especially for people like me who do not have much programming experience and want to learn how to implement recommender system. I am unable to solve the assignment and i still need some help. Would be great if the solutions of the honors track should be available to those who want to learn and not just for the sake of getting certificate
I think I am on the right track to changing my career from java engineer from data scientist, this course is one of the best start point
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ss
Awesome. Worth it!