我需要关于以下问题的帮助：我将处理从Read Database获取的数据表（示例集结构（label[datatype]): mid[int], body[text]）中的每一行作为文档。这样我可以应用一些过滤器每个文件（停用词，过滤器等）。任何人都可以帮助我吗？
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<process version="5.3.015">
<context>
<input/>
<output/>
<macros/>
</context>
<operator activated="true" class="process" compatibility="5.3.015" expanded="true" name="Process">
<process expanded="true">
<operator activated="true" class="read_database" compatibility="5.3.015" expanded="true" height="60" name="Server Connection" width="90" x="112" y="120">
<parameter key="connection" value="Server"/>
<parameter key="query" value="SELECT `mid`, `body` FROM `message` WHERE `mid` < 10 ORDER BY `mid`"/>
<enumeration key="parameters"/>
</operator>
<operator activated="true" class="loop_data_sets" compatibility="5.3.015" expanded="true" height="76" name="Loop Data Sets" width="90" x="111" y="210">
<process expanded="true">
<operator activated="true" class="text:extract_document" compatibility="5.3.002" expanded="true" name="Extract Document (2)">
<parameter key="attribute_name" value="body"/>
<parameter key="example_index" value="1"/>
</operator>
<operator activated="true" class="text:transform_cases" compatibility="5.3.002" expanded="true" name="Transform Cases (2)"/>
<operator activated="true" class="text:tokenize" compatibility="5.3.002" expanded="true" name="Tokenize (2)"/>
<operator activated="true" class="text:filter_stopwords_dictionary" compatibility="5.3.002" expanded="true" name="Filter Stopwords (2)">
<parameter key="file" value="C:\User\stopwords.txt"/>
</operator>
<operator activated="true" class="text:filter_by_length" compatibility="5.3.002" expanded="true" name="Filter Tokens (2)">
<parameter key="min_chars" value="2"/>
</operator>
<connect from_port="example set" to_op="Extract Document (2)" to_port="example set"/>
<connect from_op="Extract Document (2)" from_port="document" to_op="Transform Cases (2)" to_port="document"/>
<connect from_op="Transform Cases (2)" from_port="document" to_op="Tokenize (2)" to_port="document"/>
<connect from_op="Tokenize (2)" from_port="document" to_op="Filter Stopwords (2)" to_port="document"/>
<connect from_op="Filter Stopwords (2)" from_port="document" to_op="Filter Tokens (2)" to_port="document"/>
<connect from_op="Filter Tokens (2)" from_port="document" to_port="output 1"/>
<portSpacing port="source_example set" spacing="0"/>
<portSpacing port="sink_performance" spacing="0"/>
<portSpacing port="sink_output 1" spacing="0"/>
<portSpacing port="sink_output 2" spacing="0"/>
</process>
</operator>
<connect from_op="Server Connection" from_port="output" to_op="Loop Data Sets" to_port="example set 1"/>
<connect from_op="Loop Data Sets" from_port="output 1" to_port="result 1"/>
<portSpacing port="source_input 1" spacing="0"/>
<portSpacing port="sink_result 1" spacing="0"/>
<portSpacing port="sink_result 2" spacing="0"/>
</process>
</operator>
</process>
答案 0 :(得分：0)
我终于找到了解决方案：
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<process version="5.3.015">
<context>
<input/>
<output/>
<macros/>
</context>
<operator activated="true" class="process" compatibility="5.3.015" expanded="true" name="Process">
<process expanded="true">
<operator activated="true" class="read_database" compatibility="5.3.015" expanded="true" height="60" name="Server Connection" width="90" x="45" y="75">
<parameter key="connection" value="Server"/>
<parameter key="query" value="SELECT `mid`, `body` FROM `message` WHERE `mid` < 10 ORDER BY `mid`"/>
<enumeration key="parameters"/>
</operator>
<operator activated="true" class="text:process_document_from_data" compatibility="5.3.002" expanded="true" height="76" name="Process Documents from Data (2)" width="90" x="45" y="165">
<parameter key="create_word_vector" value="false"/>
<parameter key="add_meta_information" value="false"/>
<parameter key="keep_text" value="true"/>
<list key="specify_weights"/>
<process expanded="true">
<operator activated="true" class="web:extract_html_text_content" compatibility="5.3.001" expanded="true" height="60" name="Extract Content" width="90" x="45" y="30">
<parameter key="minimum_text_block_length" value="3"/>
</operator>
<operator activated="true" class="text:transform_cases" compatibility="5.3.002" expanded="true" height="60" name="Transform Cases" width="90" x="45" y="120"/>
<operator activated="true" class="text:tokenize" compatibility="5.3.002" expanded="true" height="60" name="Tokenize (3)" width="90" x="45" y="210"/>
<operator activated="true" class="text:filter_stopwords_dictionary" compatibility="5.3.002" expanded="true" height="76" name="Filter Stopwords (3)" width="90" x="45" y="300">
<parameter key="file" value="C:\User\stopwords.txt"/>
</operator>
<operator activated="true" class="text:filter_by_length" compatibility="5.3.002" expanded="true" height="60" name="Filter Tokens (3)" width="90" x="45" y="390">
<parameter key="min_chars" value="3"/>
</operator>
<operator activated="true" class="text:tokenize" compatibility="5.3.002" expanded="true" height="60" name="Delete links" width="90" x="45" y="480">
<parameter key="mode" value="regular expression"/>
<parameter key="expression" value="(http[s]?://[a-z_\.A-Z0-9\-]*)"/>
</operator>
<connect from_port="document" to_op="Extract Content" to_port="document"/>
<connect from_op="Extract Content" from_port="document" to_op="Transform Cases" to_port="document"/>
<connect from_op="Transform Cases" from_port="document" to_op="Tokenize (3)" to_port="document"/>
<connect from_op="Tokenize (3)" from_port="document" to_op="Filter Stopwords (3)" to_port="document"/>
<connect from_op="Filter Stopwords (3)" from_port="document" to_op="Filter Tokens (3)" to_port="document"/>
<connect from_op="Filter Tokens (3)" from_port="document" to_op="Delete links" to_port="document"/>
<connect from_op="Delete links" from_port="document" to_port="document 1"/>
<portSpacing port="source_document" spacing="0"/>
<portSpacing port="sink_document 1" spacing="0"/>
<portSpacing port="sink_document 2" spacing="0"/>
</process>
</operator>
<operator activated="true" class="generate_id" compatibility="5.3.015" expanded="true" height="76" name="Generate ID" width="90" x="179" y="165"/>
<connect from_op="Server Connection" from_port="output" to_op="Process Documents from Data (2)" to_port="example set"/>
<connect from_op="Process Documents from Data (2)" from_port="example set" to_op="Generate ID" to_port="example set input"/>
<connect from_op="Generate ID" from_port="example set output" to_port="result 1"/>
<portSpacing port="source_input 1" spacing="0"/>
<portSpacing port="sink_result 1" spacing="0"/>
<portSpacing port="sink_result 2" spacing="0"/>
</process>
</operator>
</process>