activity
20132024
most citedThe Research Space: using the career paths of scholars to predict the evolution of the research output of individuals, institutions, and nations

8 citations · 10 across the 8 of their papers we have counts for

collaborators

12 papers

cs.IR2024

Measuring the Predictability of Recommender Systems using Structural Complexity Metrics

Andrés Abeliuk, Alfonso Valderrama, Simón Campos +1

Recommender Systems (RS) shape the filtering and curation of online content, yet we have limited understanding of how predictable their recommendation outputs are. We propose data-…

cs.CL2022

Evaluation Benchmarks for Spanish Sentence Representations

Vladimir Araujo, Andrés Carvallo, Souvik Kundu +6

Due to the success of pre-trained language models, versions of languages other than English have been released in recent years. This fact implies the need for resources to evaluate…

cs.CL2021

Augmenting BERT-style Models with Predictive Coding to Improve Discourse-level Representations

Vladimir Araujo, Andrés Villa, Marcelo Mendoza +2

Current language models are usually trained using a self-supervised scheme, where the main focus is learning representations at the word or sentence level. However, there has been…

cs.CL2021★ 1 cited

Neural Abstractive Unsupervised Summarization of Online News Discussions

Ignacio Tampe Palma, Marcelo Mendoza, Evangelos Milios

Summarization has usually relied on gold standard summaries to train extractive or abstractive models. Social media brings a hurdle to summarization techniques since it requires ad…

cs.AI2021

Inspecting the concept knowledge graph encoded by modern language models

Carlos Aspillaga, Marcelo Mendoza, Alvaro Soto

The field of natural language understanding has experienced exponential progress in the last few years, with impressive results in several tasks. This success has motivated researc…

cs.IR2021

A data-driven strategy to combine word embeddings in information retrieval

Alfredo Silva, Marcelo Mendoza

Word embeddings are vital descriptors of words in unigram representations of documents for many tasks in natural language processing and information retrieval. The representation o…

cs.IR2018

Viscovery: Trend Tracking in Opinion Forums based on Dynamic Topic Models

Ignacio Espinoza, Marcelo Mendoza, Pablo Ortega +2

Opinions in forums and social networks are released by millions of people due to the increasing number of users that use Web 2.0 platforms to opine about brands and organizations.…

cs.SI2016

Revisiting Link Prediction: Evolving Models and Real Data Findings

Marcelo Mendoza, Matías Estrada

The explosive growth of Web 2.0, which was characterized by the creation of online social networks, has reignited the study of factors that could help us understand the growth and…

cs.DL2016★ 8 cited

The Research Space: using the career paths of scholars to predict the evolution of the research output of individuals, institutions, and nations

Miguel R. Guevara, Dominik Hartmann, Manuel Aristarán +2

In recent years scholars have built maps of science by connecting the academic fields that cite each other, are cited together, or that cite a similar literature. But since scholar…

cs.DL2014

Revealing Comparative Advantages in the Backbone of Science

Miguel Guevara, Marcelo Mendoza

Mapping Science across countries is a challenging task in the field of Scientometrics. A number of efforts trying to cope with this task has been discussed in the state of the art,…

cs.SI2014

Affinity Prediction in Online Social Networks

Matias Estrada, Marcelo Mendoza

Link prediction is the problem of inferring whether potential edges between pairs of vertices in a graph will be present or absent in the near future. To perform this task it is us…

cs.CL2013★ 1 cited

Says who? Automatic Text-Based Content Analysis of Television News

Carlos Castillo, Gianmarco De Francisci Morales, Marcelo Mendoza +1

We perform an automatic analysis of television news programs, based on the closed captions that accompany them. Specifically, we collect all the news broadcasted in over 140 televi…