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Abstract: Planning by Rewriting is an attractive approach for improving the performance of domain-independent planning while maintaining high-quality plan output. However, performance has been a problem for rewrite planning systems which do not have the ability to choose the best rewrite rules to use. This paper presents the empirical results of using complete-plan comparison to learn rules for a rewrite planner. A rule rating algorithm called effect similarity is used to determine the best rewrite rules, and this system's performance is compared to the performance of the planner when using unrated rules. Also discussed is the effect that keeping only a small number of the best rules has on planning time and plan quality.
BACKGROUND: Fast Fourier transform (FFT) analysis is a popular method of spectral analysis of atrial fibrillation cycle lengths (AFCL). Autocorrelation function (ACF) analysis is also available, so the aim of this study was to elucidate the relationship between FFT and ACF analyses in the spectral analysis of AFCLs. METHODS AND RESULTS: A total of 75 atrial fibrillation (AF) data from 39 patients were subjected to analysis. The dominant frequencies (DFs) from 4 different spectral resolutions of the FFT and peak AFCL from the ACF analysis were c...
The Functional Image Analysis Contest (FIAC) 2005 dataset was analyzed using BrainVoyager QX. First, we performed a standard analysis of the functional and anatomical data that includes preprocessing, spatial normalization into Talairach space, hypothesis-driven statistics (one- and two-factorial, single-subject and group-level random effects, General Linear Model [GLM]) of the block- and event-related paradigms. Strong sentence and weak speaker group-level effects were detected in temporal and frontal regions. Following this standard analysis,...
Libraries encoded with electrophoric tags present a unique challenge with respect to library quality control and characterization. Libraries are prepared on Tentagel resin in 200-fold redundancy wherein each resin particle contains one compound per one tag set. The amount of compound present on the bead is ca. 200-500 pmole while tag levels are estimated at 0.5-1 pmol/bead. Several quality control protocols have been developed in order to accurately estimate bead yield and purity for the entire library, ensure high tag fidelity, and to determin...
Characterization of energy flow in ecosystems is one of the primary goals of ecology, and the analysis of trophic interactions and food web dynamics is key to quantifying energy flow. Predator-prey interactions define the majority of trophic interactions and food web dynamics, and visual analysis of stomach, gut or fecal content composition is the technique traditionally used to quantify predator-prey interactions. Unfortunately such techniques may be biased and inaccurate due to variation in digestion rates (Sheppard & Hardwood 2005); however,...
Current methods for the analysis of swabs for condom lubricants require a portion of the swab to be extracted. This requirement causes issues for those who require the swab for DNA extraction. A novel method is presented that facilitates analysis of the swab without the need for extraction. The method was shown to be equivalent to the traditional methods in terms of its sensitivity and discriminating power. The impact of the method on subsequent DNA extraction of swabs was assessed and no detrimental effects were observed. The method was used t...
The problem of when to include a covariate in the analysis of variance is considered in the special case of organ weight analysis in animal toxicology studies. The covariate is bodyweight prior to death, which may be subject to treatment effects. A simulation study is carried out to compare four rules for deciding whether or not to include the covariate. It is concluded that if there is background information which shows a linear relationship between variate and covariate it is advisable to adjust for the covariate, however weak the relationshi...
Familial polyposis coli (FPC) is a genetic disorder, transmitted as an autosomal dominant trait, characterized by numerous colorectal adenomas. If untreated, most patients may develop colorectal adenocarcinomas. We investigated linkage between FPC and several DNA markers, and loss of heterozygosity in colorectal tumors by using RFLP analysis. We examined 15 pedigrees for linkage analysis and 31 FPC patients including 16 adenocarcinomas and 43 adenomas and 15 non-polyposis colorectal carcinomas (NPCC) for searching loss of heterozygosity. 1. Sig...
Our work on a finite element model of the skull of Macaca aims to investigate the functional significance of specific features of primate skulls and to determine to which of the input variables (elastic properties, muscle forces) the model behavior is most sensitive. Estimates of muscle forces acting on the model are derived from estimates of physiological cross-sectional areas (PCSAs) of the jaw muscles scaled by relative electromyographic (EMG) amplitudes recorded in vivo. In this study, the behavior of the model was measured under different ...
Understanding the reasons for incident and accident occurrence is important for an organization's safety. Different methods have been developed to achieve this goal. To better understand the human behaviour in incident occurrence we propose an analysis concept that combines Fault Tree Analysis (FTA) and Task Analysis (TA). The former method identifies the root causes of an accident/incident, while the latter analyses the way people perform the tasks in their work environment and how they interact with machines or colleagues. These methods were ...
Two studies examined the psychological processes that facilitate adaptive emotional analysis. In Study 1, participants recalled a depression experience and then analyzed their feelings from either a self-immersed (immersed-analysis) or self-distanced (distanced-analysis) perspective. Participants in the distanced-analysis group focused less on recounting their experience and more on reconstruing it, which in turn led to lower levels of depressed affect. Furthermore, comparisons to a distraction group indicated that distanced-analysis was as eff...
We measured NIR spectrum of VC yinqiao tablets with spectral instrument, analyzed the contents of acetaminophen and vitamin C in the VC Yinqiao tablets with principal component analysis (PCA) and Linear Neural Network, and discussed the choice of principal component number and ANN's parameters affecting the network. To compare arithmetic performance, the authors also processed the spectral data with partial least squares and PCA-BP neural network. Compared with other two data process methods, the experiment and the result of data process showed...
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or not only with respect to a particular problem. 9) Dimensionless analysis: the process of removing extraneous information from a problem by forming dimensionless groups. 10) Similar systems: those for which the dimensionless quantities have identical values, even though the dimensional quantities may differ widely in value. The fundamental theorem of dimensionless analysis is due to Buckingham, and is stated here without proof. 2 Modified March 21, 1997 8:00 am The Buckingham Pi Theorem If the equation (1) is the only relationship among the q...
or not only with respect to a particular problem. 9) Dimensionless analysis: the process of removing extraneous information from a problem by forming dimensionless groups. 10) Similar systems: those for which the dimensionless quantities have identical values, even though the dimensional quantities may differ widely in value. The fundamental theorem of dimensionless analysis is due to Buckingham, and is stated here without proof. 2 Modified March 21, 1997 8:00 am The Buckingham Pi Theorem If the equation (1) is the only relationship among the q...