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Lisette Espín Noboa

Lisette Espín Noboa
GESIS - Leibniz-Institute for the Social Sciences, Cologne, Germany · Computational Social Science - Data Science

2.38
 · 
Master of Science (Computer Science)
About
12
Research items
744
Reads
55
Citations
Introduction
Currently I am focused on analyzing attributed networks using Bayesian inference.
Research Experience
May 2015
GESIS - Leibniz-Institute for the Social Sciences
Position
  • Research Assistant
Description
  • Currently I am focused on analyzing attributed networks using Bayesian inference.
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Research
Research items (12)
Preprint
This paper introduces HopRank, an algorithm for modeling human navigation on semantic networks. HopRank leverages the assumption that users know or can see the whole structure of the network. Therefore, besides following links, they also follow nodes at certain distances (i.e., k-hop neighborhoods), and not at random as suggested by PageRank, which...
Article
Relational inference leverages relationships between entities and links in a network to infer information about the network from a small sample. This method is often used when global information about the network is not available or difficult to obtain. However, how reliable is inference from a small labelled sample? How should the network be sampl...
Article
Full-text available
Understanding edge formation represents a key question in network analysis. Various approaches have been postulated across disciplines ranging from network growth models to statistical (regression) methods. In this work, we extend this existing arsenal of methods with JANUS, a hypothesis-driven Bayesian approach that allows to intuitively compare h...
Article
Full-text available
Ontologies in the biomedical domain are numerous, highly specialized and very expensive to develop. Thus, a crucial prerequisite for ontology adoption and reuse is effective support for exploring and finding existing ontologies. Towards that goal, the National Center for Biomedical Ontology (NCBO) has developed BioPortal---an online repository cont...
Conference Paper
Ontologies in the biomedical domain are numerous, highly specialized and very expensive to develop. Thus, a crucial prerequisite for ontology adoption and reuse is effective support for exploring and finding existing ontologies. Towards that goal, the National Center for Biomedical Ontology (NCBO) has developed BioPortal---an online repository cont...
Conference Paper
Understanding edge formation represents a key question in network analysis. Various approaches have been postulated across disciplines ranging from network growth models to statistical (regression) methods. In this work, we extend this existing arsenal of methods with a hypotheses-driven Bayesian approach that allows to intuitively compare hypothes...
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Conference Paper
Full-text available
Nowadays, human movement in urban spaces can be traced digitally in many cases. It can be observed that movement patterns are not constant, but vary across time and space. In this work, we characterize such spatio-temporal patterns with an innovative combination of two separate approaches that have been utilized for studying human mobility in the p...
Article
Nowadays, human movement in urban spaces can be traced digitally in many cases. It can be observed that movement patterns are not constant, but vary across time and space. In this work,we characterize such spatio-temporal patterns with an innovative combination of two separate approaches that have been utilized for studying human mobility in the pa...
Conference Paper
Full-text available
Ontologies are complex intellectual artifacts and creating them requires significant expertise and effort. While existing ontology-editing tools and methodologies propose ways of building ontologies in a normative way, empirical investigations of how experts actually construct ontologies " in the wild " are rare. Yet, understanding actual user beha...
Article
Full-text available
With the widespread adoption of social media sites like Twitter and Facebook, there has been a shift in the way information is produced and consumed. Earlier, the only producers of information were traditional news organizations, which broadcast the same carefully-edited information to all consumers over mass media channels. Whereas, now, in online...