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STOC
1991
ACM
127views Algorithms» more  STOC 1991»
14 years 1 months ago
Lower Bounds for Randomized k-Server and Motion Planning Algorithms
In this paper, we prove lower bounds on the competitive ratio of randomized algorithms for two on-line problems: the k-server problem, suggested by [MMS], and an on-line motion-pl...
Howard J. Karloff, Yuval Rabani, Yiftach Ravid
RTSS
1994
IEEE
14 years 2 months ago
On-Line Scheduling to Maximize Task Completions
The problem of uniprocessor scheduling under conditions of overload is investigated. The system objective is to maximzze the number of tasks that complete by their deadlines. For ...
Sanjoy K. Baruah, Jayant R. Haritsa, Nitin Sharma
CIKM
2009
Springer
14 years 3 months ago
Improvements that don't add up: ad-hoc retrieval results since 1998
The existence and use of standard test collections in information retrieval experimentation allows results to be compared between research groups and over time. Such comparisons, ...
Timothy G. Armstrong, Alistair Moffat, William Web...
SODA
2010
ACM
175views Algorithms» more  SODA 2010»
14 years 7 months ago
An Online Scalable Algorithm for Average Flow Time in Broadcast Scheduling
In this paper the online pull-based broadcast model is considered. In this model, there are n pages of data stored at a server and requests arrive for pages online. When the serve...
Benjamin Moseley, Sungjin Im
ORDER
2007
89views more  ORDER 2007»
13 years 10 months ago
On-line Chain Partitioning of Up-growing Interval Orders
On-line chain partitioning problem of on-line posets has been open for the past 20 years. The best known on-line algorithm uses 5w −1 4 chains to cover poset of width w. Felsner ...
Patrick Baier, Bartlomiej Bosek, Piotr Micek