User profiles for Artur Ziviani

Artur Ziviani

National Laboratory for Scientific Computing (LNCC), Brazil
Verified email at lncc.br
Cited by 3526

Constraint-based geolocation of internet hosts

B Gueye, A Ziviani, M Crovella, S Fdida - Proceedings of the 4th ACM …, 2004 - dl.acm.org
Geolocation of Internet hosts enables a diverse and interesting new class of location-aware
applications. Previous measurement-based approaches use reference hosts, called …

[PDF][PDF] An evaluation framework for more realistic simulations of MPEG video transmission.

CH Ke, CK Shieh, WS Hwang, A Ziviani - Journal of Information Science & …, 2008 - Citeseer
We present a novel and complete tool-set for evaluating the delivery quality of MPEG video
transmissions in simulations of a network environment. This tool-set is based on the EvalVid …

A survey on embedding dynamic graphs

…, MRF Mendonça, AB Vieira, A Ziviani - ACM Computing Surveys …, 2021 - dl.acm.org
… This article is dedicated to the memory of our dear co-worker Artur Ziviani, who passed
away while it was being peer-reviewed. Artur was a brilliant researcher and dedicated advisor. …

A unifying model for representing time-varying graphs

K Wehmuth, A Ziviani, E Fleury - 2015 IEEE International …, 2015 - ieeexplore.ieee.org
Graph-based models form a fundamental aspect of data representation in Data Sciences and
play a key role in modeling complex networked systems. In particular, recently there is an …

Learning blockchain delays: A queueing theory approach

S Ricci, E Ferreira, DS Menasche, A Ziviani… - ACM SIGMETRICS …, 2019 - dl.acm.org
Despite the growing interest in cryptocurrencies, the delays incurred to confirm transactions
are one of the factors that hamper the wide adoption of systems such as Bitcoin. Bitcoin …

Daccer: Distributed assessment of the closeness centrality ranking in complex networks

K Wehmuth, A Ziviani - Computer Networks, 2013 - Elsevier
We propose a method for the Distributed Assessment of the Closeness CEntrality Ranking (DACCER)
in complex networks. DACCER computes centrality based only on localized …

Joint adoption of QoS schemes for MPEG streams

A Ziviani, BE Wolfinger, JF de Rezende… - Multimedia tools and …, 2005 - Springer
Indiscriminated packet discards strongly degrade the quality perceived by end users of MPEG
video transmissions. This paper investigates different Quality of Service (QoS) schemes …

Network anomaly detection using nonextensive entropy

A Ziviani, ATA Gomes, ML Monsores… - IEEE …, 2007 - ieeexplore.ieee.org
Detection is a crucial step towards efficiently diagnosing network traffic anomalies within an
autonomous system (AS). We propose the adoption of nonextensive entropy - a one-…

A survey of biodiversity informatics: Concepts, practices, and challenges

…, F Thompson, M Chame, A Ziviani… - … : Data Mining and …, 2021 - Wiley Online Library
The unprecedented size of the human population, along with its associated economic activities,
has an ever‐increasing impact on global environments. Across the world, countries are …

Time centrality in dynamic complex networks

EC Costa, AB Vieira, K Wehmuth, A Ziviani… - Advances in Complex …, 2015 - World Scientific
There is an ever-increasing interest in investigating dynamics in time-varying graphs (TVGs).
Nevertheless, so far, the notion of centrality in TVG scenarios usually refers to metrics that …