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Probabilistic Boolean networks (PBNs) have recently been introduced as a promising class of models of genetic regulatory networks. The dynamic behaviour of PBNs can be analysed in the context of Markov chains. A key goal is the determination of the steady-state (long-run) behaviour of a PBN by analysing the corresponding Markov chain. This allows one to… (More)

This article presents a technique for taking a sparse set of cache simulation data and fitting a multivariate model to fill in the missing points over a broad region of cache configurations. We extend previous work by its applicability to multiple miss rate components and its ability to model a wide range of cache parameters, including size, associativity… (More)

Cache miss rates are an important subset of system model inputs. Cache miss rate models are used for broad design space exploration in which many cache configurations cannot be simulated directly due to limitations of trace collection setups or available resources. Often it is not practical to simulate large caches. Large processor counts and consequent… (More)

To participate in sponsored search online advertising, an advertiser bids on a set of keywords relevant to his/her product or service. When one of these keywords matches a user search string, the ad is then considered for display among sponsored search results. Advertisers compete for positions in which their ads appear, as higher slots typically result in… (More)

Keerthi and Shevade (2007) proposed an efficient algorithm for constructing an approximate least angle regression least absolute shrinkage and selection operator solution path for logistic regression as a function of the regularization parameter. In this brief, their approach is extended to multinomial regression. We show that a brute-force approach leads… (More)

- Ilya Gluhovsky
- 2011

—Keerthi and Shevade (2007) proposed an efficient algorithm for constructing an approximate LARS solution path for logistic regression as a function of the regulariza-tion parameter. In this paper we extend their approach to multinomial regression. We show that a brute-force approach leads to a multivariate approximation problem resulting in an infeasible… (More)