我有tb_sentence
表:不能存儲DOCUMENT_ID
=========================================================================
| id_row | document_id | sentence_id | sentence_content |
=========================================================================
| 1 | 1 | 0 | Introduction to Data Mining. |
| 2 | 1 | 1 | Describe how data mining. |
| 3 | 2 | 0 | The boss is right. |
=========================================================================
我想令牌化的sentence_content,所以tb_tokens
表將包含:
==========================================================================
| tokens_id | tokens_word | tokens_freq | sentence_id | document_id |
==========================================================================
| 1 | Introduction | 1 | 0 | 1 |
| 2 | to | 1 | 0 | 1 |
| 3 | Data | 1 | 0 | 1 |
| 4 | Mining | 1 | 0 | 1 |
| 5 | Describe | 1 | 1 | 1 |
etc...
這裏是我的代碼:
$sentence_clean = array();
$q1 = mysql_query("SELECT document_id FROM tb_sentence ORDER BY document_id ") or die(mysql_error());
while ($row1 = mysql_fetch_array($q1)) {
$doc_id[] = $row1['document_id'];
}
$q2 = mysql_query('SELECT sentence_content, sentence_id, document_id FROM tb_sentence ') or die(mysql_error());
while ($row2 = mysql_fetch_array($q2)) {
$sentence_clean[$row2['document_id']][] = $row2['sentence_content'];
}
foreach ($sentence_clean as $kal) {
if (trim($kal) === '')
continue;
tokenizing($kal);
}
具有標記功能的是:
function tokenizing($sentence) {
foreach ($sentence as $sentence_id => $sentences) {
$symbol = array(".", ",", "\\", "-", "\"", "(", ")", "<", ">", "?", ";", ":", "+", "%", "\r", "\t", "\0", "\x0B");
$spasi = array("\n", "/", "\r");
$replace = str_replace($spasi, " ", $sentences);
$cleanSymbol = str_replace($symbol, "", $replace);
$quote = str_replace("'", "\'", $cleanSymbol);
$element = explode(" ", trim($quote));
$elementNCount = array_count_values($element);
foreach ($elementNCount as $word => $freq) {
if (ereg("([a-z,A-Z])", $word)) {
$query = mysql_query(" INSERT INTO tb_tokens VALUES ('','$word','$freq','$sentence_id', '$doc_id')");
}
}
}
}
問題是document_id
無法讀取,無法插入tb +令牌表中。如何打電話給那些document_id
?謝謝:)
編輯問題: 每個單詞(標記化的結果)有document_id
和sentence_id
。我的問題是不能撥打document_id
。如何在每個字詞中調用sentence_id
和document_id
?
提出問題的好工作。除了......「問題是document_id不能被讀取並且不能被插入到tb +令牌表中 - 你能更精確嗎?出了什麼問題? – Smandoli 2012-08-02 12:25:28
@Smandoli對不起,如果我的英語不好。每個'sentence_content'都有'document_id'。我需要在document_id中插入標記詞,但是我無法讀取document_id – bruine 2012-08-02 12:32:56
沒有'$ row ['document_id']'因爲您沒有在第二個查詢的選擇列表中包含'document_id'。 – 2012-08-02 12:36:03