Search Results for author: Andrés Abeliuk

Found 7 papers, 1 papers with code

Measuring the Predictability of Recommender Systems using Structural Complexity Metrics

no code implementations12 Apr 2024 Alfonso Valderrama, Andrés Abeliuk

This study introduces data-driven metrics to measure the predictability of RS based on the structural complexity of the user-item rating matrix.

Recommendation Systems

QuickCent: a fast and frugal heuristic for harmonic centrality estimation on scale-free networks

no code implementations2 Mar 2023 Francisco Plana, Andrés Abeliuk, Jorge Pérez

Our experiments show that QuickCent is able to make estimates that are competitive in accuracy with the best alternative methods tested, either on synthetic scale-free networks or empirical networks.

Quantifying the Effects of Recommendation Systems

no code implementations4 Feb 2020 Sunshine Chong, Andrés Abeliuk

Recommendation systems today exert a strong influence on consumer behavior and individual perceptions of the world.

Collaborative Filtering Recommendation Systems

Learning Behavioral Representations from Wearable Sensors

no code implementations16 Nov 2019 Nazgol Tavabi, Homa Hosseinmardi, Jennifer L. Villatte, Andrés Abeliuk, Shrikanth Narayanan, Emilio Ferrara, Kristina Lerman

Continuous collection of physiological data from wearable sensors enables temporal characterization of individual behaviors.

Discovering patterns of online popularity from time series

1 code implementation10 Apr 2019 Mert Ozer, Anna Sapienza, Andrés Abeliuk, Goran Muric, Emilio Ferrara

By clustering the multidimensional time-series of the popularity of contents coupled with other domain-specific dimensions, we uncover two main patterns of popularity: bursty and steady temporal behaviors.

Clustering Time Series +1

Characterizing Activity on the Deep and Dark Web

no code implementations1 Mar 2019 Nazgol Tavabi, Nathan Bartley, Andrés Abeliuk, Sandeep Soni, Emilio Ferrara, Kristina Lerman

The deep and darkweb (d2web) refers to limited access web sites that require registration, authentication, or more complex encryption protocols to access them.

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