phpanalysis分词系统，分词后的数据组保存到哪里了

Question

求助
文章的keywords是通过分词后的词，但是phpanalysis又把这些分词使用数字编码形式，我想把他们转换成中文 ，需要怎么做

    /**
     * 获得保存目标编码
     * @return int
     */
     private function _source_result_charset()
     {
        if( preg_match("/^utf/", $this->targetCharSet) ) {
           $rs = 1;
        }
        else if( preg_match("/^gb/", $this->targetCharSet) ) {
           $rs = 2;
        }
        else if( preg_match("/^big/", $this->targetCharSet) ) {
           $rs = 3;
        }
        else {
            $rs = 4;
        }
        return $rs;
     }
     
     /**
     * 编译词典
     * @parem $sourcefile utf-8编码的文本词典数据文件<参见范例dict/not-build/base_dic_full.txt>
     * 注意, 需要PHP开放足够的内存才能完成操作
     * @return void
     */
     public function MakeDict( $source_file, $target_file='' )
     {
        $target_file = ($target_file=='' ? $this->mainDicFile : $target_file);
        $allk = array();
        $fp = fopen($source_file, 'r');
        while( $line = fgets($fp, 512) )
        {
            if( $line[0]=='@' ) continue;
            list($w, $r, $a) = explode(',', $line);
            $a = trim( $a );
            $w = iconv('utf-8', UCS2, $w);
            $k = $this->_get_index( $w );
            if( isset($allk[ $k ]) )
                $allk[ $k ][ $w ] = array($r, $a);
            else
                $allk[ $k ][ $w ] = array($r, $a);
        }
        fclose( $fp );
        $fp = fopen($target_file, 'w');
        $heade_rarr = array();
        $alldat = '';
        $start_pos = $this->mask_value * 8;
        foreach( $allk as $k => $v )
        {
            $dat  = serialize( $v );
            $dlen = strlen($dat);
            $alldat .= $dat;
        
            $heade_rarr[ $k ][0] = $start_pos;
            $heade_rarr[ $k ][1] = $dlen;
            $heade_rarr[ $k ][2] = count( $v );
        
            $start_pos += $dlen;
        }
        unset( $allk );
        for($i=0; $i < $this->mask_value; $i++)
        {
            if( !isset($heade_rarr[$i]) )
            {
                $heade_rarr[$i] = array(0, 0, 0);
            }
            fwrite($fp, pack("Inn", $heade_rarr[$i][0], $heade_rarr[$i][1], $heade_rarr[$i][2]));
        }
        fwrite( $fp, $alldat);
        fclose( $fp );
     }
     
     /**
     * 导出词典的词条
     * @parem $targetfile 保存位置
     * @return void
     */
     public function ExportDict( $targetfile )
     {
        if( !$this->mainDicHand )
        {
            $this->mainDicHand = fopen($this->mainDicFile, 'r');
        }
        $fp = fopen($targetfile, 'w');
        for($i=0; $i <= $this->mask_value; $i++)
        {
            $move_pos = $i * 8;
            fseek($this->mainDicHand, $move_pos, SEEK_SET);
            $dat = fread($this->mainDicHand, 8);
            $arr = unpack('I1s/n1l/n1c', $dat);
            if( $arr['l'] == 0 )
            {
                continue;
            }
            fseek($this->mainDicHand, $arr['s'], SEEK_SET);
            $data = @unserialize(fread($this->mainDicHand, $arr['l']));
            if( !is_array($data) ) continue;
            foreach($data as $k => $v)
            {
                $w = iconv(UCS2, 'utf-8', $k);
                fwrite($fp, "{$w},{$v[0]},{$v[1]}\n");
            }
        }
        fclose( $fp );
        return true;
     }
}

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