Machine learningCarbonate reservoirsWell log data analysisLithofacies classification from well logs recorded through heterogeneous carbonate reservoirs helps to ... WJ Al-Mudhafar,MA Abbas,DA Wood - 《Marine & Petroleum Geology》 被引量: 0发表: 2022年 Characterizing seismic facies in a carbonate reserv...
Despite its name, in machine learninglogistic regressionis used for classification, not regression. The important point is thelogisticnature of the function it produces, which describes an S-shaped curve between a lower and upper value (0.0 and 1.0 when used for binary classification). ...
Once text from RFEs is extracted and digitized, a copy-paste operation is performed to create a document draft to be used by lawyers in further work.Another example is сlinical text classification with convolutional neural networks and rule-based features. The entire process includes three steps...
Recall that hidden and output nodes are computed in two steps. First, a sum of products is computed, and then an activation function is applied. Arrays hSums and oSums hold the sum of products. A design alternative is to declare hSums and oSums as class-scope arrays to avoid allocating...
This makes partially-observed time series (POTS) a pervasive problem in open-world modeling and prevents advanced data analysis. Although this problem is important, the area of machine learning on POTS still lacks a dedicated toolkit. PyPOTS is created to fill in this blank....
Classification algorithmsare generally used either to discover new classes in a data set (unsupervised classification) or to assign hypotheses to a given class (supervised classification). Here, since all the raw data have already passed the preprocessing stage, the sequence of steps includes cluster...
Suppose that we have several data of people and want to build a classifier predicting whether they are obese or not based on their weight. We have the following steps: Step1: fit a line and project the original data points onto the candidate line, and the projection gives us the log(odds...
You can work with your project in two ways: through Language Studio and via the REST API. Language Studio is the GUI that will be used in the lab, but the REST API has the same functionality. Regardless of which method you prefer, the steps for developing your model are the same....
The update steps are identical to the update steps for linear regression. 【正确】The update steps look like the update steps for linear regression, but the definition of f_{\vec{w},b}(\mathbf{x}^{(i)})is different. 【解释】For logistic regression, f_{\vec{w},b}(\mathbf{x}^{(...
The complete methodology of the proposed approach has been discussed in this section. 2.1 Experimental design for data acquisition The complete data collection experiment has been sorted into seven steps shown in Fig. 1. The first step was to select the subjects. In this study, brain activity ...