Concepts inFactorization meets the neighborhood: a multifaceted collaborative filtering model

Collaborative filtering

Collaborative filtering (CF) is a technique used by some recommender systems. Collaborative filtering has two senses, a narrow one and a more general one. In general, collaborative filtering is the process of filtering for information or patterns using techniques involving collaboration among multiple agents, viewpoints, data sources, etc. Applications of collaborative filtering typically involve very large data sets.  more from Wikipedia

Scientific modelling

Scientific modelling is the process of generating abstract, conceptual, graphical or mathematical models. Science offers a growing collection of methods, techniques and theory about all kinds of specialized scientific modelling. A scientific model can provide a way to read elements easily which have been broken down to a simpler form. Modelling is an essential and inseparable part of all scientific activity, and many scientific disciplines have their own ideas about specific types of modelling.  more from Wikipedia

Factorization

In mathematics, factorization (also factorisation in British English) or factoring is the decomposition of an object into a product of other objects, or factors, which when multiplied together give the original. For example, the number 15 factors into primes as 3 × 5, and the polynomial x ¿ 4 factors as (x ¿ 2)(x + 2). In all cases, a product of simpler objects is obtained.  more from Wikipedia

Netflix

Netflix, Inc. is an American provider of on-demand Internet streaming media in the United States, Canada, Latin America, the Caribbean, United Kingdom and Ireland and flat rate DVD-by-mail in the United States. The company was established in 1997 and is headquartered in Los Gatos, California. It started its subscription-based digital distribution service in 1999 and by 2009 it was offering a collection of 100,000 titles on DVD and had surpassed 10 million subscribers.  more from Wikipedia

Recommender system

Recommender systems or recommendation systems (sometimes replacing "system" with a synonym such as platform or engine) are a subclass of information filtering system that seek to predict the 'rating' or 'preference' that a user would give to an item or social element they had not yet considered, using a model built from the characteristics of an item (content-based approaches) or the user's social environment (collaborative filtering approaches).  more from Wikipedia

Personalization

Personalization involves using technology to accommodate the differences between individuals. Once confined mainly to the Web, it is increasingly becoming a factor in education, health care, television, and in both "business to business" and "business to consumer" settings.  more from Wikipedia

Metric (mathematics)

In mathematics, a metric or distance function is a function which defines a distance between elements of a set. A set with a metric is called a metric space. A metric induces a topology on a set but not all topologies can be generated by a metric. A topological space whose topology can be described by a metric is called metrizable.  more from Wikipedia