Observe locally, infer globally: a space-time MRF for detecting abnormal activities with incremental updates

J Kim, K Grauman - 2009 IEEE conference on computer vision …, 2009 - ieeexplore.ieee.org
We propose a space-time Markov random field (MRF) model to detect abnormal activities in
video. The nodes in the MRF graph correspond to a grid of local regions in the video frames …

Methodology for the identification of potential security issues of different IPv6 transition technologies: Threat analysis of DNS64 and stateful NAT64

G Lencse, Y Kadobayashi - Computers & Security, 2018 - Elsevier
We are faced with the transition from IPv4 to IPv6, which will last for several years or possibly
decades. There are different IPv6 transition technologies, which enable the communication …

[HTML][HTML] Benchmarking methodology for stateful NAT64 gateways

G Lencse, K Shima, K Cho - Computer Communications, 2023 - Elsevier
Abstract The benchmarking of Network Address and Protocol Translation from IPv6 clients to
IPv4 servers (stateful NAT64) gateways is challenging from a methodological point of view …

[PDF][PDF] Performance evaluation of IPv4/IPv6 transition mechanisms

A Quintero, F Sans, E Gamess - International Journal of Computer …, 2016 - mecs-press.net
The exhaustion of IPv4 addresses has forced the deployment of the new version of the
Internet Protocol (IPv6). However, the migration to the new protocol is done gradually and …

Performance analysis and comparison of different DNS64 implementations for Linux, OpenBSD and FreeBSD

G Lencse, S Répás - 2013 IEEE 27th International Conference …, 2013 - ieeexplore.ieee.org
The transition mechanisms for the first phase of IPv6 deployment are surveyed and the most
important DNS64 solutions are selected. The test environment and the testing method are …

Analysis of IPv6 transition technologies

A Albkerat, B Issac - arXiv preprint arXiv:1410.2013, 2014 - arxiv.org
Currently IPv6 is extremely popular with companies, organizations and Internet service
providers (ISP) due to the limitations of IPv4. In order to prevent an abrupt change from IPv4 …

Performance analysis and comparison of the TAYGA and of the PF NAT64 implementations

G Lencse, S Répás - 2013 36th International Conference on …, 2013 - ieeexplore.ieee.org
The transition mechanisms for the first phase of IPv6 deployment are surveyed and the most
important NAT64 solutions are selected. The test environment and the testing method are …

Performance analysis and comparison of four DNS64 implementations under different free operating systems

G Lencse, S Répás - Telecommunication Systems, 2016 - Springer
The depletion of the global IPv4 address pool made the deployment of IPv6, the new version
of the Internet Protocol, inevitable. In this paper, the transition mechanisms for the first phase …

[HTML][HTML] Performance analysis of SIIT implementations: Testing and improving the methodology

G Lencse, K Shima - Computer Communications, 2020 - Elsevier
In this paper, the viability of the throughput and frame loss rate benchmarking procedures of
RFC 8219 is tested by executing them to examine the performance of three free software …

[HTML][HTML] Design and implementation of a software tester for benchmarking stateful NATxy gateways: theory and practice of extending siitperf for stateful tests

G Lencse - Computer Communications, 2022 - Elsevier
Our siitperf is the world's first RFC 8219 compliant free software SIIT (Stateless IP/ICMP
Translation, also called stateless NAT64) benchmarking tool. It was written in C++ using …