scholarly journals Analysis of learning algorithms for collaborative recommendation systems

2013 ◽  
Author(s):  
Д.Е. Королева ◽  
◽  
М.В. Филиппов ◽  
Keyword(s):  
Learning Algorithms ◽  
Recommendation Systems ◽  
Collaborative Recommendation

Stream-based explainable recommendations via blockchain profiling

2021 ◽  
pp. 1-17
Author(s):  
Fátima Leal ◽  
Bruno Veloso ◽  
Benedita Malheiro ◽  
Juan Carlos Burguillo ◽  
Adriana E. Chis ◽  
...  
Keyword(s):  
Historical Data ◽  
Positive Impact ◽  
Empirical Evaluation ◽  
Recommendation Systems ◽  
Use Cases ◽  
Collaborative Filter ◽  
Model Based ◽  
Collaborative Recommendation ◽  
Smart Contract ◽  
User Trust

Explainable recommendations enable users to understand why certain items are suggested and, ultimately, nurture system transparency, trustworthiness, and confidence. Large crowdsourcing recommendation systems ought to crucially promote authenticity and transparency of recommendations. To address such challenge, this paper proposes the use of stream-based explainable recommendations via blockchain profiling. Our contribution relies on chained historical data to improve the quality and transparency of online collaborative recommendation filters – Memory-based and Model-based – using, as use cases, data streamed from two large tourism crowdsourcing platforms, namely Expedia and TripAdvisor. Building historical trust-based models of raters, our method is implemented as an external module and integrated with the collaborative filter through a post-recommendation component. The inter-user trust profiling history, traceability and authenticity are ensured by blockchain, since these profiles are stored as a smart contract in a private Ethereum network. Our empirical evaluation with HotelExpedia and Tripadvisor has consistently shown the positive impact of blockchain-based profiling on the quality (measured as recall) and transparency (determined via explanations) of recommendations.

scholarly journals Cluster searching strategies for collaborative recommendation systems

2013 ◽  
Vol 49 (3) ◽  
pp. 688-697 ◽  
Author(s):  
Ismail Sengor Altingovde ◽  
Özlem Nurcan Subakan ◽  
Özgür Ulusoy
Keyword(s):  
Recommendation Systems ◽  
Collaborative Recommendation

scholarly journals Movie Recommenadation System

2021 ◽  
Vol 9 (4) ◽  
pp. 13-16
Author(s):  
Gandhali Malve ◽  
Lajree Lohar ◽  
Tanay Malviya ◽  
Shirish Sabnis
Keyword(s):  
Machine Learning ◽  
Recommender System ◽  
Recommendation System ◽  
Learning Algorithms ◽  
Recommendation Systems ◽  
Machine Learning Algorithms ◽  
The Internet ◽  
Amount Of Information ◽  
System Recommendation ◽  
User Ratings

Today the amount of information in the internet growth very rapidly and people need some instruments to find and access appropriate information. One of such tools is called recommendation system. Recommendation systems help to navigate quickly and receive necessary information. Many of us find it difficult to decide which movie to watch and so we decided to make a recommender system for us to better judge which movie we are more likely to love. In this project we are going to use Machine Learning Algorithms to recommend movies to users based on genres and user ratings. Recommendation system attempt to predict the preference or rating that a user would give to an item.

scholarly journals Orchestration of ML-Based Recommendation Systems

2021 ◽  
Vol 23 (08) ◽  
pp. 173-180
Author(s):  
Vivek Kumar Singh ◽  
◽  
Shruthi E Karnam ◽  
Bhagyashri R Hanji ◽  
◽  
...  
Keyword(s):  
Machine Learning ◽  
Neural Networks ◽  
User Experience ◽  
Learning Algorithms ◽  
Recommendation Systems ◽  
Machine Learning Algorithms

Many e-commerce websites use recommendation systems to recommend products to users to boost sales and user experience. These recommendations do not always come from the same recommendation engine. Websites can use multiple recommender models that use different machine learning algorithms and neural networks to compute these recommendations. There arises a need for a machine learning pipeline that will help orchestrate all the steps required to compute and display recommendations. The pipeline handles training a model using content-based approach, storing it with required metadata, loading it, precomputing recommendations, collecting user metrics, analysing the metrics and retraining the models with updated hyperparameters if required. Without a pipeline to automate and streamline the process, much of the work must be done manually.

Collaborative Recommendation Systems and Link Analysis

2011 ◽  
pp. 69-97
Author(s):  
François Fouss
Keyword(s):  
Random Walk ◽  
Text Mining ◽  
Graph Mining ◽  
Web Mining ◽  
Relational Learning ◽  
Recommendation Systems ◽  
Link Analysis ◽  
Graph Structure ◽  
Collaborative Recommendation ◽  
As Graph

Link analysis is a framework usually associated with fields such as graph mining, relational learning, Web mining, text mining, hyper-text mining, visualization of link structures. It provides and analyzes relationships and associations between many objects of various types that are not apparent from isolated pieces of information. This chapter shows how to apply various link-analysis algorithms exploiting the graph structure of databases on collaborative-recommendation tasks. More precisely, two kinds of link-analysis algorithms are applied to recommend items to users: random-walk based models and kernel-based models. These link-analysis based algorithms do not use any feature of the items in order to compute the recommendations, they first compute a matrix containing the links between persons and items, and then derive recommendations from this matrix or part of it.

scholarly journals Development of machine learning algorithms for a recommendation system for selecting musical compositions

Connectivity ◽  
2020 ◽  
Vol 148 (6) ◽  
Author(s):  
D. D. Demydov ◽  
◽  
I. S. Shcherbyna ◽  
N. A. Trintina ◽  
A. M. Shtimmerman ◽  
...  
Keyword(s):  
Machine Learning ◽  
Recommendation System ◽  
Learning Algorithms ◽  
Recommendation Systems ◽  
Main Tool ◽  
Machine Learning Algorithms ◽  
Separate Analysis ◽  
Data Set ◽  
Economic Point ◽  
Musical Compositions

The article analyzes the method of singular value decomposition (SVD) as an effective way to build a recommender system. With the development of information technologies and their introduction into public life, there is a need to search for accentuated information in conditions of uncertainty. To solve such problems, recently created intelligent recommendation systems [1]. The popularity of recommendation systems is growing in every segment of goods and services, in particular music. From a socio-economic point of view, such systems are the main tool for the dissemination of new compositions in the field of music promotes the promotion of these compositions in accordance with the preferences of the target audience and encourages users to purchase new music tracks. In addition, such systems significantly reduce the time and facilitate the search for appropriate musical compositions under conditions of uncertainty. The main problem in developing machine learning algorithms is the lack of an individual approach to each user. All recommendations are based on the statistical behavior of the majority, resulting in a percentage of people who do not receive recommendations that match their personal preferences. In the case of a separate analysis of each of the users and the implementation of recommendations in accordance with their personal use of Internet resources, the number of quality and more accurate proposals in the list of recommendations would increase significantly. Machine learning methods are effectively used to build recommendation systems, namely: the k-nearest neighbors method, the Bayesian algorithm and the singular matrix decomposition method. Among these methods, the SVD method is the most widely used in practice. This method is used to reduce the number of non-significant data set factors. Factors in recommendation systems are properties that describe the user or subject. In music recommendation systems, this can be a genre. SVD reduces the dimension of the matrix by removing its hidden factors.

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