• Publications
  • Influence
Sampling and Filtering Techniques for IP Packet Selection
TLDR
This document describes Sampling and Filtering techniques for IP packet selection. Expand
  • 147
  • 14
  • PDF
A peek into the future: predicting the evolution of popularity in user generated content
TLDR
We identify patterns of temporal evolution that are generalisable to distinct types of data, and show that we can (1) accurately classify content based on the evolution of its popularity over time and (2) predict the value of the content's future popularity. Expand
  • 146
  • 13
Temporal locality in today's content caching: why it matters and how to model it
TLDR
This paper addresses the problem of defining a realistic arrival process for the content requests generated by users, due its critical importance for both analytical and simulative evaluations of the performance of caching systems. Expand
  • 156
  • 12
  • PDF
Unravelling the Impact of Temporal and Geographical Locality in Content Caching Systems
TLDR
We introduce a simple, parsimonious traffic model, named shot noise model (SNM), that allows us to capture temporal and geographical locality of content popularity. Expand
  • 65
  • 10
  • PDF
Detecting SPIT Calls by Checking Human Communication Patterns
TLDR
We propose an innovative way to detect SPIT calls by comparing applying hidden Turing tests that compare them with typical human communication patterns. Expand
  • 98
  • 5
  • PDF
SIP-based mobility management in next generation networks
TLDR
We propose an application-layer solution for mobility management that is based on the SIP protocol and satisfies the most important requirements for a proper implementation of vertical handovers between heterogeneous networks. Expand
  • 63
  • 5
  • PDF
Analyzing the Performance of LRU Caches under Non-Stationary Traffic Patterns
TLDR
This work presents, to the best of our knowledge of the literature, the first analytic model to address the performance of an LRU (Least Recently Used) implementing cache under non-stationary traffic conditions, when the popularity of content evolves with time. Expand
  • 21
  • 5
  • PDF
Architecture of a network-aware P2P-TV application: the NAPA-WINE approach
TLDR
We present and discuss the architecture of an innovative, network cooperative P2PTV application that is being designed and developed within the STREP Project NAPA WINE. Expand
  • 44
  • 3
  • PDF
An Experimental Evaluation of Voice Quality Over the Datagram Congestion Control Protocol
TLDR
This paper experimentally evaluates the voice quality that Internet telephony calls achieve over prototype implementations of basic DCCP and several DCCPs variants, under different network conditions and with different codecs. Expand
  • 50
  • 2
  • PDF
Design principles of an operator-owned highly distributed content delivery network
TLDR
This article provides thoroughly justified design principles for a highly distributed operator-owned CDN while focusing on four key aspects: the optimal location of cache servers, mechanisms for request routing, content replica placement, and content outsourcing. Expand
  • 50
  • 2
  • PDF