Seminario di AT&T all'Università di Salerno
Balachander Krishnamurthy di AT&T Labs sarà in dipartimento in visita da oggi fino all'8 settembre. Il 7 settembre (domani) alle ore 11.30 nella aula P18 (IV piano della sede della presidenza di Facoltà) terrà il seguente seminario. Siete tutti invitati.

Titolo del seminario: "Cat and Mouse: Content Delivery Tradeoffs in Web Access"
Balachander Krishnamurthy, AT&T Labs--Research

Abstract: This talk examines extraneous material (e.g., advertisements) on Web pages that may be viewed as undesirable by some users and the increasing requirement to register before accessing a Web site. Users have predictably reacted to this by avoiding downloading and/or rendering of extraneous material and bypassing registration. Such tension between content owners and users hasresulted in a cat and mouse game. I will report on a recent measurement-based study characterizing the nature of extraneous content, manner of
distribution, its impact on performance as perceived by users, the effectiveness of blocking mechanisms, and attempts to circumvent registration. Preliminary results show that extraneous content exists on a majority of popular pages and that a 25-30% reduction in
downloaded objects and bytes with corresponding latency reduction can be attained by blocking such content. A majority of popular sites require some form of registration and they can be bypassed. I will discuss possible future stages in this cat and mouse game.