GSP operator - min gap
Can't understand whether GSP operator's "min gap" parameter works somehow.
In the data below min gap changing should influence to generated SPs, but it doesn't!
Min gap should exclude the transactions from patterns if they are close to each other.
Doesn't matter the value of min gap: 0, 4, 10.
Always the same result!
Please help ....
Maybe some working example ...
This is process:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<process version="6.5.002">
<context>
<input/>
<output/>
<macros/>
</context>
<operator activated="true" class="process" compatibility="6.5.002" expanded="true" name="Process">
<parameter key="logverbosity" value="init"/>
<parameter key="random_seed" value="2001"/>
<parameter key="send_mail" value="never"/>
<parameter key="notification_email" value=""/>
<parameter key="process_duration_for_mail" value="30"/>
<parameter key="encoding" value="SYSTEM"/>
<process expanded="true">
<operator activated="true" class="read_csv" compatibility="6.5.002" expanded="true" height="60" name="Read CSV" width="90" x="45" y="75">
<parameter key="csv_file" value="\\customer_sample_GSP.csv"/>
<parameter key="column_separators" value=";"/>
<parameter key="trim_lines" value="false"/>
<parameter key="use_quotes" value="true"/>
<parameter key="quotes_character" value="""/>
<parameter key="escape_character" value="\"/>
<parameter key="skip_comments" value="false"/>
<parameter key="comment_characters" value="#"/>
<parameter key="parse_numbers" value="true"/>
<parameter key="decimal_character" value="."/>
<parameter key="grouped_digits" value="false"/>
<parameter key="grouping_character" value=","/>
<parameter key="date_format" value=""/>
<parameter key="first_row_as_names" value="false"/>
<list key="annotations">
<parameter key="0" value="Name"/>
</list>
<parameter key="time_zone" value="SYSTEM"/>
<parameter key="locale" value="English (United States)"/>
<parameter key="encoding" value="windows-1251"/>
<list key="data_set_meta_data_information">
<parameter key="0" value="Customer.true.polynominal.attribute"/>
<parameter key="1" value="Time.true.integer.attribute"/>
<parameter key="2" value="Product.true.polynominal.attribute"/>
</list>
<parameter key="read_not_matching_values_as_missings" value="true"/>
<parameter key="datamanagement" value="double_array"/>
</operator>
<operator activated="true" class="nominal_to_binominal" compatibility="6.5.002" expanded="true" height="94" name="Nominal2Binominal" width="90" x="246" y="30">
<parameter key="return_preprocessing_model" value="false"/>
<parameter key="create_view" value="false"/>
<parameter key="attribute_filter_type" value="single"/>
<parameter key="attribute" value="Product"/>
<parameter key="attributes" value="|a1|a2|a3|a4"/>
<parameter key="use_except_expression" value="false"/>
<parameter key="value_type" value="nominal"/>
<parameter key="use_value_type_exception" value="false"/>
<parameter key="except_value_type" value="file_path"/>
<parameter key="block_type" value="single_value"/>
<parameter key="use_block_type_exception" value="false"/>
<parameter key="except_block_type" value="single_value"/>
<parameter key="invert_selection" value="false"/>
<parameter key="include_special_attributes" value="true"/>
<parameter key="transform_binominal" value="true"/>
<parameter key="use_underscore_in_name" value="false"/>
</operator>
<operator activated="true" class="generalized_sequential_patterns" compatibility="6.5.002" expanded="true" height="76" name="GSP" width="90" x="380" y="165">
<parameter key="customer_id" value="Customer"/>
<parameter key="time_attribute" value="Time"/>
<parameter key="min_support" value="0.15"/>
<parameter key="window_size" value="0.0"/>
<parameter key="max_gap" value="15.0"/>
<parameter key="min_gap" value="7.0"/>
<parameter key="positive_value" value="true"/>
</operator>
<connect from_op="Read CSV" from_port="output" to_op="Nominal2Binominal" to_port="example set input"/>
<connect from_op="Nominal2Binominal" from_port="example set output" to_op="GSP" to_port="example set"/>
<connect from_op="GSP" from_port="example set" to_port="result 1"/>
<connect from_op="GSP" from_port="patterns" to_port="result 2"/>
<portSpacing port="source_input 1" spacing="0"/>
<portSpacing port="sink_result 1" spacing="0"/>
<portSpacing port="sink_result 2" spacing="0"/>
<portSpacing port="sink_result 3" spacing="0"/>
</process>
</operator>
</process>
This is csv data:
Customer Time Product
Alex 10 bread
Alex 15 butter
Alex 20 caviar
Peter 10 bread
Peter 15 butter
Peter 17 caviar
Peter 20 water
Igor 10 butter
Igor 20 bread
Igor 30 water
Hasan 10 bread
Hasan 20 butter
Hasan 22 caviar
Hasan 50 lemon
Pan 19 butter
Pan 20 bread
Pan 22 caviar
In the data below min gap changing should influence to generated SPs, but it doesn't!
Min gap should exclude the transactions from patterns if they are close to each other.
Doesn't matter the value of min gap: 0, 4, 10.
Always the same result!
Please help ....
Maybe some working example ...
This is process:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<process version="6.5.002">
<context>
<input/>
<output/>
<macros/>
</context>
<operator activated="true" class="process" compatibility="6.5.002" expanded="true" name="Process">
<parameter key="logverbosity" value="init"/>
<parameter key="random_seed" value="2001"/>
<parameter key="send_mail" value="never"/>
<parameter key="notification_email" value=""/>
<parameter key="process_duration_for_mail" value="30"/>
<parameter key="encoding" value="SYSTEM"/>
<process expanded="true">
<operator activated="true" class="read_csv" compatibility="6.5.002" expanded="true" height="60" name="Read CSV" width="90" x="45" y="75">
<parameter key="csv_file" value="\\customer_sample_GSP.csv"/>
<parameter key="column_separators" value=";"/>
<parameter key="trim_lines" value="false"/>
<parameter key="use_quotes" value="true"/>
<parameter key="quotes_character" value="""/>
<parameter key="escape_character" value="\"/>
<parameter key="skip_comments" value="false"/>
<parameter key="comment_characters" value="#"/>
<parameter key="parse_numbers" value="true"/>
<parameter key="decimal_character" value="."/>
<parameter key="grouped_digits" value="false"/>
<parameter key="grouping_character" value=","/>
<parameter key="date_format" value=""/>
<parameter key="first_row_as_names" value="false"/>
<list key="annotations">
<parameter key="0" value="Name"/>
</list>
<parameter key="time_zone" value="SYSTEM"/>
<parameter key="locale" value="English (United States)"/>
<parameter key="encoding" value="windows-1251"/>
<list key="data_set_meta_data_information">
<parameter key="0" value="Customer.true.polynominal.attribute"/>
<parameter key="1" value="Time.true.integer.attribute"/>
<parameter key="2" value="Product.true.polynominal.attribute"/>
</list>
<parameter key="read_not_matching_values_as_missings" value="true"/>
<parameter key="datamanagement" value="double_array"/>
</operator>
<operator activated="true" class="nominal_to_binominal" compatibility="6.5.002" expanded="true" height="94" name="Nominal2Binominal" width="90" x="246" y="30">
<parameter key="return_preprocessing_model" value="false"/>
<parameter key="create_view" value="false"/>
<parameter key="attribute_filter_type" value="single"/>
<parameter key="attribute" value="Product"/>
<parameter key="attributes" value="|a1|a2|a3|a4"/>
<parameter key="use_except_expression" value="false"/>
<parameter key="value_type" value="nominal"/>
<parameter key="use_value_type_exception" value="false"/>
<parameter key="except_value_type" value="file_path"/>
<parameter key="block_type" value="single_value"/>
<parameter key="use_block_type_exception" value="false"/>
<parameter key="except_block_type" value="single_value"/>
<parameter key="invert_selection" value="false"/>
<parameter key="include_special_attributes" value="true"/>
<parameter key="transform_binominal" value="true"/>
<parameter key="use_underscore_in_name" value="false"/>
</operator>
<operator activated="true" class="generalized_sequential_patterns" compatibility="6.5.002" expanded="true" height="76" name="GSP" width="90" x="380" y="165">
<parameter key="customer_id" value="Customer"/>
<parameter key="time_attribute" value="Time"/>
<parameter key="min_support" value="0.15"/>
<parameter key="window_size" value="0.0"/>
<parameter key="max_gap" value="15.0"/>
<parameter key="min_gap" value="7.0"/>
<parameter key="positive_value" value="true"/>
</operator>
<connect from_op="Read CSV" from_port="output" to_op="Nominal2Binominal" to_port="example set input"/>
<connect from_op="Nominal2Binominal" from_port="example set output" to_op="GSP" to_port="example set"/>
<connect from_op="GSP" from_port="example set" to_port="result 1"/>
<connect from_op="GSP" from_port="patterns" to_port="result 2"/>
<portSpacing port="source_input 1" spacing="0"/>
<portSpacing port="sink_result 1" spacing="0"/>
<portSpacing port="sink_result 2" spacing="0"/>
<portSpacing port="sink_result 3" spacing="0"/>
</process>
</operator>
</process>
This is csv data:
Customer Time Product
Alex 10 bread
Alex 15 butter
Alex 20 caviar
Peter 10 bread
Peter 15 butter
Peter 17 caviar
Peter 20 water
Igor 10 butter
Igor 20 bread
Igor 30 water
Hasan 10 bread
Hasan 20 butter
Hasan 22 caviar
Hasan 50 lemon
Pan 19 butter
Pan 20 bread
Pan 22 caviar