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Now showing items 131-140 of 181
Characteristics of Small Social Networks
(2010-07-27)
Two dozen networks are analyzed using three parameters that attempt to capture important properties of social networks: leadership L, member bonding B, and diversity of expertise D. The first two of these parameters have ...
Power-Aware Computing with Dynamic Knobs
(2010-05-14)
We present PowerDial, a system for dynamically adapting application behavior to execute successfully in the face of load and power fluctuations. PowerDial transforms static configuration parameters into dynamic knobs that ...
iJam: Jamming Oneself for Secure Wireless Communication
(2010-06-07)
Wireless is inherently less secure than wired networks because of its broadcast nature. Attacks that simply snoop on the wireless medium successfully defeat the security of even 802.11 networks using the most recent security ...
EM2: A Scalable Shared-Memory Multicore Architecture
(2010-06-12)
We introduce the Execution Migration Machine (EM2), a novel, scalable shared-memory architecture for large-scale multicores constrained by off-chip memory bandwidth. EM2 reduces cache miss rates, and consequently off-chip ...
SIFT Flow: Dense Correspondence across Scenes and its Applications
(2010-05-08)
While image alignment has been studied in different areas of computer vision for decades, aligning images depicting different scenes remains a challenging problem. Analogous to optical flow where an image is aligned to its ...
ChitChat: Making Video Chat Robust to Packet Loss
(2010-07-05)
Video chat is increasingly popular among Internet users. Often, however, chatting sessions suffer from packet loss, which causes video outage and poor quality. Existing solutions however are unsatisfying. Retransmissions ...
Broadcasting in Unreliable Radio Networks
(2010-06-08)
Practitioners agree that unreliable links, which fluctuate between working and not working, are an important characteristic of wireless networks. In contrast, most theoretical models of radio networks fix a static set of ...
Assessing the suitability of user centric design methods when applied in a developing world context
(2010)
The application of information and communication technologies to development (ICT4Dev) is widely believed to have the potential to improve livelihoods in developing regions. Within the field of HCI, it is recognised that ...
The effects of network factors on the performance of 3G UMTS applications
(2010)
3G is the wireless network technology expected to allow wireless applications to perform on par with wired applications. However 3G has factors which limit its performance. These factors include both device factors such ...
Resolving the hydration of hexacyclic systems using ultrasonic interferometry and computer simulations
(2010)
The major part of this thesis focuses on investigating dynamic hydration behaviour of a series of hexacycylic molecules in water, by using computational techniques validated through ultrasound interferometry experiments. ...