split the current group recursively.

Put logs into bins according to (# of '<*>', # of token)

Generate word combinations Output: sorted_tuple_vector: each tuple in the tuple_vector will be sorted according their fre

Updates the template data using the supplied new_words.

save to logs in groups into different template txt

Attributes ---------- rex : regular expressions used in preprocessing (step1) path : the input path stores th

Attributes ---------- path : the path of the input file logname : the file name of the input file savePath :t

Attributes ---------- rex : regular expressions used in preprocessing (step1) path : the input path stores th

The constructor with an attribute of type List of Template :param p_templates: a dictionary of Template

The constructor of the Class Template initialize the object with a list of strings and initialize the frequency and specificity wit

Initialize the class with the list of log messages

Initialize the objet with an list of strings :param p_message

Constructor that takes the path to the log file as input and saves the content of the file as a list of strings each item in the li

A container that generates a Chromosome object

Arguments: rsupport = < relative_support > separator = < word_separator_regexp > lfilter = < line_filter_

Dumps the data structure as a JSON format to serialize the object. This internal function is called by the TemplateManager

Initializes the instance with the provided JSON data. This internal function is normally called by the initializer.

Applies mutation on a chromosome modify an existing template from a cluster :param ch: chromosome to mutate :return: the m

Dumps a specified template data structure usually in a text format. Args: index: a template index. Returns:

Evaluation function to benchmark log parsing accuracy Arguments --------- groundtruth : str file path of groundtruth

Create a chromosome with 100 coverage for each cluster the created chromosome shuold have the same keys as the messages of the chro

Randomly select a cluster with id X from messages :return: a template from the cluster X the template has a length = X

Retruens a similarity score. Args: new_words: An array of words. Returns: score: in float.

apply crossover on two Chromosomes at a randomly selected crossover point :param ch1: first Chromosome :param ch2: second Chromosome :

Get the number of clusters inside the chromosome :return: an integer: number of cluster

Constructor that takes the path to the log file as input and saves the content of the file as a list of strings each item in the li