activity
20142026
most citedDetecting Memory and Structure in Human Navigation Patterns Using Markov Chain Models of Varying Order

105 citations · 270 across the 20 of their papers we have counts for

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Showing 2021Show all

6 papers · 1 filter

cs.LG2021★ 16 cited

Structack: Structure-based Adversarial Attacks on Graph Neural Networks

Hussain Hussain, Tomislav Duricic, Elisabeth Lex +3

Recent work has shown that graph neural networks (GNNs) are vulnerable to adversarial attacks on graph data. Common attack approaches are typically informed, i.e. they have access…

cs.IR2021

RFID-based Article-to-Fixture Predictions in Real-World Fashion Stores

Matthias Wölbitsch, Thomas Hasler, Patrick Kasper +2

In recent years, Radio Frequency Identification (RFID) technology has been applied to improve numerous processes, such as inventory management in retail stores. However, automatic…

cs.LG2021

Surfacing Estimation Uncertainty in the Decay Parameters of Hawkes Processes with Exponential Kernels

Tiago Santos, Florian Lemmerich, Denis Helic

As a tool for capturing irregular temporal dependencies (rather than resorting to binning temporal observations to construct time series), Hawkes processes with exponential decay h…

cs.CY2021

Limiting Tags Fosters Efficiency

Tiago Santos, Keith Burghardt, Kristina Lerman +1

Tagging facilitates information retrieval in social media and other online communities by allowing users to organize and describe online content. Researchers found that the efficie…

cs.CY2021★ 1 cited

Volunteer contributions to Wikipedia increased during COVID-19 mobility restrictions

Thorsten Ruprechter, Manoel Horta Ribeiro, Tiago Santos +4

Wikipedia, the largest encyclopedia ever created, is a global initiative driven by volunteer contributions. When the COVID-19 pandemic broke out and mobility restrictions ensued ac…

cs.SI2021★ 28 cited

Synwalk -- Community Detection via Random Walk Modelling

Christian Toth, Denis Helic, Bernhard C. Geiger

Complex systems, abstractly represented as networks, are ubiquitous in everyday life. Analyzing and understanding these systems requires, among others, tools for community detectio…