enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Word2vec - Wikipedia

    en.wikipedia.org/wiki/Word2vec

    The use of different model parameters and different corpus sizes can greatly affect the quality of a word2vec model. Accuracy can be improved in a number of ways, including the choice of model architecture (CBOW or Skip-Gram), increasing the training data set, increasing the number of vector dimensions, and increasing the window size of words ...

  3. Linear discriminant analysis - Wikipedia

    en.wikipedia.org/wiki/Linear_discriminant_analysis

    As an example, in a two dimensional problem, the line that best divides the two groups is perpendicular to . Generally, the data points to be discriminated are projected onto w → {\displaystyle {\vec {w}}} ; then the threshold that best separates the data is chosen from analysis of the one-dimensional distribution.

  4. Fisher's exact test - Wikipedia

    en.wikipedia.org/wiki/Fisher's_exact_test

    We set up the following probability model underlying Fisher’s exact test. Suppose we have a + b {\textstyle a+b} blue balls, and c + d {\textstyle c+d} red balls. We throw them together into a black box, shake well, then remove them one by one until we have pulled out exactly a + c {\textstyle a+c} balls.

  5. Comma-separated values - Wikipedia

    en.wikipedia.org/wiki/Comma-separated_values

    Comma-separated values (CSV) is a text file format that uses commas to separate values, and newlines to separate records. A CSV file stores tabular data (numbers and text) in plain text, where each line of the file typically represents one data record.

  6. Generalized linear model - Wikipedia

    en.wikipedia.org/wiki/Generalized_linear_model

    In statistics, a generalized linear model (GLM) is a flexible generalization of ordinary linear regression.The GLM generalizes linear regression by allowing the linear model to be related to the response variable via a link function and by allowing the magnitude of the variance of each measurement to be a function of its predicted value.

  7. Anemic domain model - Wikipedia

    en.wikipedia.org/wiki/Anemic_domain_model

    An anemic domain model would have one write code like the following (written in C#), which by itself does not implement any of the business concerns, in this case, that a height or a width cannot be zero or negative, or that somewhere else there is a requirement for the area of the rectangle. This means that those functionalities are ...

  8. Group by (SQL) - Wikipedia

    en.wikipedia.org/wiki/Group_by_(SQL)

    A GROUP BY statement in SQL specifies that a SQL SELECT statement partitions result rows into groups, based on their values in one or several columns. Typically, grouping is used to apply some sort of aggregate function for each group.

  9. Hash function - Wikipedia

    en.wikipedia.org/wiki/Hash_function

    In these applications, the set of all inputs is some sort of metric space, and the hashing function can be interpreted as a partition of that space into a grid of cells. The table is often an array with two or more indices (called a grid file, grid index, bucket grid, and similar names), and the hash function returns an index tuple.

  1. Related searches pandas groupby mean ignore nan cells in dataframe line model in python

    pandas groupby mean ignore nan cells in dataframe line model in python example