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CORR
1999
Springer
93views Education» more  CORR 1999»
14 years 11 months ago
On the Power of Positive Turing Reductions
: In the early 1980s, Selman's seminal work on positive Turing reductions showed that positive Turing reduction to NP yields no greater computational power than NP itself. Thu...
Edith Hemaspaandra
MOBISYS
2010
ACM
15 years 2 months ago
Energy-efficient rate-adaptive GPS-based positioning for smartphones
Many emerging smartphone applications require position information to provide location-based or context-aware services. In these applications, GPS is often preferred over its alte...
Jeongyeup Paek, Joongheon Kim, Ramesh Govindan
CORR
2006
Springer
103views Education» more  CORR 2006»
14 years 12 months ago
Positional Determinacy of Games with Infinitely Many Priorities
We study two-player games of infinite duration that are played on finite or infinite game graphs. A winning strategy for such a game is positional if it only depends on the current...
Erich Grädel, Igor Walukiewicz
SIGIR
2012
ACM
13 years 2 months ago
To index or not to index: time-space trade-offs in search engines with positional ranking functions
Positional ranking functions, widely used in web search engines, improve result quality by exploiting the positions of the query terms within documents. However, it is well known ...
Diego Arroyuelo, Senén González, Mau...
HUC
1999
Springer
15 years 4 months ago
On Positioning for Augmented Reality Systems
In Augmented Reality (AR), see-through Head Mounted Displays (HMDs) superimpose virtual 3D objects over the real world. They have the potential to enhance a user's perception ...
Stelian Persa, Pieter Jonker