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M. Henig and D. Simchi-Levy.Scheduling tasks with failure probabilities to minimize expected cost. Naval Research Logistics 37,99-109, 1990.

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Efficient Information Gathering on the Internet.. - Etzioni, Hanks.. (1996)   (Correct)

....; T (O) TT: max E[S(O) w reward) s.t. 8O D(O) s.t. 8O D(O) and T (O) cost linear (no reward) CO: min E[D(O) T (O) Figure 1: The five objective functions. O denotes a possible outcome of the schedule P to be found. paper is the ability to query anynumber of sources in parallel. [3, 5] study scheduling tasks with unlimited parallelism with some similarity to the LL and CO models, but the positive results in [3, 5] are limited to an exponential time dynamic programming algorithm and some heuristics. 2 The Cost Model 2.1 BatchSchedules for a Single Item of Information Issuing ....

....Figure 1: The five objective functions. O denotes a possible outcome of the schedule P to be found. paper is the ability to query anynumber of sources in parallel. 3, 5] study scheduling tasks with unlimited parallelism with some similarity to the LL and CO models, but the positive results in [3, 5] are limited to an exponential time dynamic programming algorithm and some heuristics. 2 The Cost Model 2.1 BatchSchedules for a Single Item of Information Issuing the query to information source i is referred to as performing job i.We define a mathematical notion called a fraction of a job, or ....

M. Henig and D. Simchi-Levy.Scheduling tasks with failure probabilities to minimize expected cost. Naval Research Logistics 37,99-109, 1990.


Optimal Information Gathering on the Internet with.. - Etzioni, Hanks.. (1996)   (6 citations)  (Correct)

....If we constrain the policies to be serialized, then an optimal solution can be found in polynomial time (see Section 4 for the LT case) Similar problems have been addressed in [5, 9, 13, 19] and elsewhere. The difference in this paper is the ability to query any number of sources in parallel. [4, 6] study scheduling tasks with unlimited parallelism, but their models are different because all tasks have to be executed successfully, whereas in our model a successful answer from any single source suffices. Furthermore, the positive results in [4, 6] are restricted to an exponential time dynamic ....

....to query any number of sources in parallel. 4, 6] study scheduling tasks with unlimited parallelism, but their models are different because all tasks have to be executed successfully, whereas in our model a successful answer from any single source suffices. Furthermore, the positive results in [4, 6] are restricted to an exponential time dynamic programming algorithm and some heuristics. Another model of optimal information gathering has recently been studied in [3] There, the objective is to find a query policy that minimizes the expected value of a linear combination of the total dollar ....

M. Henig and D. Simchi-Levy. Scheduling tasks with failure probabilities to minimize expected cost. Naval Research Logistics 37,99-109, 1990.


Efficient Information Gathering on the Internet.. - Etzioni, Hanks..   (Correct)

....T (O) TT: max E[S(O) w reward) s.t. 8O D(O) s.t. 8O D(O) and T (O) cost linear (no reward) CO: min E[D(O) T (O) Figure 1: The five objective functions. O denotes a possible outcome of the schedule P to be found. paper is the ability to query any number of sources in parallel. [3, 5] study scheduling tasks with unlimited parallelism with some similarity to the LL and CO models, but the positive results in [3, 5] are limited to an exponential time dynamic programming algorithm and some heuristics. 2 The Cost Model 2.1 Batch Schedules for a Single Item of Information Issuing ....

....Figure 1: The five objective functions. O denotes a possible outcome of the schedule P to be found. paper is the ability to query any number of sources in parallel. 3, 5] study scheduling tasks with unlimited parallelism with some similarity to the LL and CO models, but the positive results in [3, 5] are limited to an exponential time dynamic programming algorithm and some heuristics. 2 The Cost Model 2.1 Batch Schedules for a Single Item of Information Issuing the query to information source i is referred to as performing job i. We define a mathematical notion called a fraction of a job, ....

M. Henig and D. Simchi-Levy. Scheduling tasks with failure probabilities to minimize expected cost. Naval Research Logistics 37,99-109, 1990.

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