∫ntegrabℓε ∂iﬀerentiαℓs · unorganised notes, code, and writings of random topics

Floyd and Paxson (2001) Difficulties in Simulating the Internet (TON)

November 8, 2008 paper

Difficulties of simulation: Heterogenity of topology, protocol, link properties. Also the changing nature of the internet, e.g. routes changing all the time, trend of applications, topology, router features. [more]

Kim, Lau, Chuah, Chao (2004) PacketScore: Statistics-based Overload Control against DDoS Attacks (INFOCOM)

November 8, 2008 paper

DDD: Detect for the victim, Differentiate traffic into attack and legitimate, Discard suspicious packets according to legitimate score and congestion level [more]

Fang et al (1999) Computing Iceberg Queries Efficiently (VLDB'98)

November 7, 2008 paper

Find the elements in a set-with-duplicates for top-\(K\) frequencies. Two approaches are proposed: sampling and coarse counting. Sampling is to take \(s\) samples from a pool of \(N\) and count for the frequencies in \(s\). The result is then scaled by \(N/s\). Afterwards, report those with scaled frequency larger than... [more]

Welzl, Papadimitriou, Scharf, Briscoe (2008) Open Research Issues in Internet Congestion Control (Internet Draft)

November 5, 2008 paper

In chapter 1 of the draft, an overview of the history of congestion control research of TCP/IP is presented. [more]

Hei et al (2007) A Measurement Study of a Large-Scale P2P IPTV System (IEEE T. of Multimedia 9(8))

October 30, 2008 paper

Measuring PPLive by setting up a couple clients and trace the packets by passive sniffing. Following information are harvested: (1) Diurnal and weekly trend; (2) Peer arrival and departures, i.e. flash crowd; (3) geographic distribution; (4) overheads of content; (5) redundancy; (6) upload-download ratio; (7) live time of each connections... [more]