A number of important decisions are based on a set of specific items in a database called select items . Thus the analysis of select items in multiple databases becomes of primordial relevance. In this chapter, we focus on the following issues. First, a model of mining global patterns of ...
Performance of the proposed solution is evaluated experimentally on real server log data. The hypothesis behind our experiments is that representing user sessions with the most relevant features allows an ML method to discover hidden patterns in sessions of bots and humans of different types without ...
Both methods together allow a reliable evaluation of a model’s performance. All models show good results for consecutive days with similar patterns. Results are different when the weather changes substantially in comparison to the day before, e.g. in case of a temperature drop. In this ...
Motor Imagery is a classical method of Brain Computer Interaction, in which electroencephalogram (EEG) signal features evoked by the imaginary body movements are recognized, and relevant information is extracted. Recently, various deep learning methods are being focused on finding an easy-to-use EEG ...
The training data often contains outliers or represents misleading patterns in the data. Fitting the training data with such irregularities to deeply cause the model to lose its generalization. The model performs very well on the training set but not so good on the test set. As we can see on...
XRD patterns of coarse sand, fine sand, silt, and clay soil particles after passivator treatments. (1: quart, 2: feldspar, 3: mica, 4: zeolite, 5: illite, 6: chlorite, 7: calcite) (Origin 2019b). (CK: control check, GM: goat manure, L: Ca(OH)2, P: Ca(H2PO4)·2H2O, GL...
like the Lomb-Scargle periodograms [33,34] that can assess periodic behaviors (akin to Fourier analysis [35]) even in the presence of missing data and unequal sampling frequencies. Unfortunately, the embedding plot did not reveal any clear patterns, with the exception that the control (no-tau...
Experimental observations have also shown that there are some similarities in fracture patterns occurring in the tensile strength test and fracture toughness test. For the tensile test, the entire specimen failed along the loading direction, exactly from the centre of the specimen. For the toughness ...
We found that parents with low parental efficacy were more likely to give their children all three kinds of screen devices, among which TV and tablet were detrimental to home literacy practices whereas computers, like books, were complementary to home literacy practices. Latent profile analysis ...
Previously studies have focused mostly on HMs content, but only a few followed it with biomonitoring to find out the source and accumulation patterns in the exposed population. The key objectives of the study are to;(1) investigate the accumulation and distribution of HMs (As, Cr, Cu, Cd, ...