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One of the main challenges in recommender systems is data sparsity which leads to high variance. Several attempts have been made to improve the bias-variance trade-off using auxiliary information. In particular, document modeling-based…

Information Retrieval · Computer Science 2021-09-14 Meysam Varasteh , Mehdi Soleiman Nejad , Hadi Moradi , Mohammad Amin Sadeghi , Ahmad Kalhor

We propose a new 'Bi-Reduced Space' approach to solving 3D Variational Data Assimilation using Convolutional Autoencoders. We prove that our approach has the same solution as previous methods but has significantly lower computational…

Machine Learning · Computer Science 2021-01-07 Julian Mack , Rossella Arcucci , Miguel Molina-Solana , Yi-Ke Guo

Eliciting the preferences and needs of tourists is challenging, since people often have difficulties to explicitly express them, especially in the initial phase of travel planning. Recommender systems employed at the early stage of planning…

Human-Computer Interaction · Computer Science 2020-06-11 Mete Sertkan , Julia Neidhardt , Hannes Werthner

In this paper, we study the problem of recommendation system where the users and items to be recommended are rich data structures with multiple entity types and with multiple sources of side-information in the form of graphs. We provide a…

The increasing availability and diversity of multimodal data in recommender systems offer new avenues for enhancing recommendation accuracy and user satisfaction. However, these systems must contend with high-dimensional, sparse user-item…

Information Retrieval · Computer Science 2024-12-04 Yasser Khalafaoui , Martino Lovisetto , Basarab Matei , Nistor Grozavu

Following the recent progress in image classification and captioning using deep learning, we develop a novel natural language person retrieval system based on an attention mechanism. More specifically, given the description of a person, the…

Computer Vision and Pattern Recognition · Computer Science 2017-05-26 Tao Zhou , Muhao Chen , Jie Yu , Demetri Terzopoulos

Personalized recommendation systems shape much of user choice online, yet their targeted nature makes separating out the value of recommendation and the underlying goods challenging. We build a discrete choice model that embeds…

General Economics · Economics 2026-03-30 Kevin Zielnicki , Guy Aridor , Aurélien Bibaut , Allen Tran , Winston Chou , Nathan Kallus

With the widespread adoption of information systems, recommender systems are widely used for better user experience. Collaborative filtering is a popular approach in implementing recommender systems. Yet, collaborative filtering methods are…

Information Retrieval · Computer Science 2019-08-20 Sapumal Ahangama , Danny Chiang-Choon Poo

Recommender System research suffers currently from a disconnect between the size of academic data sets and the scale of industrial production systems. In order to bridge that gap we propose to generate more massive user/item interaction…

Information Retrieval · Computer Science 2019-02-22 Francois Belletti , Karthik Lakshmanan , Walid Krichene , Yi-Fan Chen , John Anderson

Recent advancements in deep neural networks for graph-structured data have led to state-of-the-art performance on recommender system benchmarks. However, making these methods practical and scalable to web-scale recommendation tasks with…

Information Retrieval · Computer Science 2018-06-07 Rex Ying , Ruining He , Kaifeng Chen , Pong Eksombatchai , William L. Hamilton , Jure Leskovec

Modern recommender systems model people and items by discovering or `teasing apart' the underlying dimensions that encode the properties of items and users' preferences toward them. Critically, such dimensions are uncovered based on user…

Information Retrieval · Computer Science 2016-02-05 Ruining He , Julian McAuley

Recommender systems (RS), serving at the forefront of Human-centered AI, are widely deployed in almost every corner of the web and facilitate the human decision-making process. However, despite their enormous capabilities and potential, RS…

Information Retrieval · Computer Science 2024-02-23 Yingqiang Ge , Shuchang Liu , Zuohui Fu , Juntao Tan , Zelong Li , Shuyuan Xu , Yunqi Li , Yikun Xian , Yongfeng Zhang

Recommender Systems (RS) currently represent a fundamental tool in online services, especially with the advent of Online Social Networks (OSN). In this case, users generate huge amounts of contents and they can be quickly overloaded by…

Information Retrieval · Computer Science 2023-07-06 Mattia Giovanni Campana , Franca Delmastro

Protein function is inherently linked to its localization within the cell, and fluorescent microscopy data is an indispensable resource for learning representations of proteins. Despite major developments in molecular representation…

Quantitative Methods · Quantitative Biology 2022-05-25 Anastasia Razdaibiedina , Alexander Brechalov

Food diary applications represent a tantalizing market. Such applications, based on image food recognition, opened to new challenges for computer vision and pattern recognition algorithms. Recent works in the field are focusing either on…

Computer Vision and Pattern Recognition · Computer Science 2016-12-21 Niki Martinel , Gian Luca Foresti , Christian Micheloni

This paper proposes a novel model for the rating prediction task in recommender systems which significantly outperforms previous state-of-the art models on a time-split Netflix data set. Our model is based on deep autoencoder with 6 layers…

Machine Learning · Statistics 2017-10-12 Oleksii Kuchaiev , Boris Ginsburg

There are rich formats of information in the network, such as rating, text, image, and so on, which represent different aspects of user preferences. In the field of recommendation, how to use those data effectively has become a difficult…

Information Retrieval · Computer Science 2019-07-05 Weibin Lin , Lin Li

Recent years have witnessed the fast development of the emerging topic of Graph Learning based Recommender Systems (GLRS). GLRS employ advanced graph learning approaches to model users' preferences and intentions as well as items'…

Information Retrieval · Computer Science 2021-05-14 Shoujin Wang , Liang Hu , Yan Wang , Xiangnan He , Quan Z. Sheng , Mehmet A. Orgun , Longbing Cao , Francesco Ricci , Philip S. Yu

In this paper we present an extensive evaluation of visual descriptors for the content-based retrieval of remote sensing (RS) images. The evaluation includes global hand-crafted, local hand-crafted, and Convolutional Neural Network (CNNs)…

Computer Vision and Pattern Recognition · Computer Science 2017-08-09 Paolo Napoletano

Many Deep Learning approaches solve complicated classification and regression problems by hierarchically constructing complex features from the raw input data. Although a few works have investigated the application of deep neural networks…

Information Retrieval · Computer Science 2020-12-10 Arash Khoeini , Saman Haratizadeh , Ehsan Hoseinzade