Platinum containing compounds are promising antitumor agents, but must enter cells before reaching their main biological target, namely DNA. Their distribution within the body, and hence their activity is to a large extent determined by their lipophilicity, thus there is a strong interest to develop computational methods to predict this important property. This study analyses accuracy of five m...

In this paper we consider a basic scheduling problem called the busy time scheduling problem given n jobs, with release times rj , deadlines dj and processing times pj , and m machines, where each machine can run up to g jobs concurrently, our goal is to find a schedule to minimize the sum of the “on” times for the machines. We develop the first correct constant factor online competitive algori...

Asymptotic Giant Branch variables are found to obey period-luminosity relations in the mid-IR similar to those seen atKS (2.14μm), even at 24μm where emission from circumstellar dust is expected to be dominant. Their loci in the M , logP diagrams are essentially the same for the LMC and for NGC6522 in spite of different ages and metallicities. There is no systematic trend of slope with waveleng...

Actor programs give rise to computation structures that evolve dynamically and unpredictably both in shape and size. Therefore, their execution times cannot be statically determined. This paper describes an approach to the problem of estimating time costs of actor programs. The approach takes into account the constraints imposed both by the semantics and implementation of the model. In particul...

Accurate measurement and modeling of network performance is important for predicting and optimizing the running time of high-performance computing applications. Although the LogP family of models has proven to be a valuable tool for assessing the communication performance of parallel architectures, non-intrusive LogP parameter assessment of real systems remains a difficult task. Based on an ana...

Let Cn be the origin-containing cluster in subcritical percolation on the lattice 1 nZ , viewed as a random variable in the space Ω of compact, connected, origin-containing subsets of R, endowed with the Hausdorff metric δ. When d ≥ 2, and Γ is any open subset of Ω, we prove that lim n→∞ 1 n logP (Cn ∈ Γ) = − inf S∈Γ λ(S) where λ(S) is the one-dimensional Hausdorff measure of S defined using th...

In this paper we consider a basic scheduling problem called the busy time scheduling problem given n jobs, with release times rj , deadlines dj and processing times pj , and m machines, where each machine can run up to g jobs concurrently, our goal is to find a schedule to minimize the sum of the “on” times for the machines. We develop the first correct constant factor online competitive algori...

We show how Principal Component Analysis can be used to analyse the structure of Cepheid light curves. This method is more efficient than Fourier analysis at bringing out changes in light curve shape as a function of period. Using this technique, we study the shape of fundamental and first overtone mode Cepheid light curves in the Galaxy, LMC and SMC over a wide period range. For fundamentals, ...

This paper presents an automatic coding scheme for representing the output layer of a neural network. Compared t o local representation where the number of output unit is p , the number of output unit required for the proposed representation is close to logp. The output of seven different printers were used for evaluating the performance of the system. The proposed automatic representation gave...