Znn3bq.jpeg
²é¿´: 757  |  »Ø¸´: 2
±¾Ìû²úÉú 1 ¸ö ·­ÒëEPI £¬µã»÷ÕâÀï½øÐв鿴

unitjava

½û³æ (СÓÐÃûÆø)

±¾ÌûÄÚÈݱ»ÆÁ±Î

» ÊÕ¼±¾ÌûµÄÌÔÌûר¼­ÍƼö

»ýÀÛ

» ²ÂÄãϲ»¶

ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

alvarohao

Ìú¸Ëľ³æ (ÖøÃûдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

unitjava(½ð±Ò+10, ·­ÒëEPI+1): лл£¬Ñ§Ï°ÁË 2011-11-27 11:36:37
The retrieval of the key words applies the standard IR sorting method, i.e. cosine vector measuring method SIR as shown in equation1. The idf(t) in the equation is the number of documents which include t.

After adding the characteristic information, the kinds of characteristic information increased and the consuming time is more than that of the pure key words searching. From the comparison, the time efficient has somewhat reduction, but in an acceptable range for the users.

The retrieval results were analyzed and compared through the assessment criteria of the average recall ratio and average precision ratio, and in the aspect of the average consuming time.
ÇóŒ?„“У¬„îÖ¾ˆD?Š£¡
2Â¥2011-11-27 11:28:10
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

alvarohao

Ìú¸Ëľ³æ (ÖøÃûдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

unitjava(½ð±Ò+1): лл£¬ÎÒÓöµ½ÎÊÌâÔÙÎÊÄú£¬´òÈÅÁË£¡ 2011-11-27 11:37:51
SIRºÍÓàÏÒÏòÁ¿¶ÈÁ¿·¨Ö®¼äµÄ¹ØÏµÎÒ²»Ì«¶®£¬Äã×¢Òâ·­Òë¡£
ÇóŒ?„“У¬„îÖ¾ˆD?Š£¡
3Â¥2011-11-27 11:29:13
ÒÑÔÄ   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ unitjava µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼²©] É격/¿¼²© +3 ¿ÐÃæ°üµÄСÊ鳿 2026-04-17 4/200 2026-04-17 23:54 by ÑôÑôÑô^_^
[¿¼²©] Ç󲩵¼£üÉúÎïÖÊ»ù¶à¿×̼/³¬¼¶µçÈÝ·½Ïò£¬ÒÑÓÐÏà¹Ø³É¹û£¬Ñ°ÄÜÔ´²ÄÁÏ/̼²ÄÁÏ·½ÏòÀÏʦ +3 ÖíÖíÈËZzz 2026-04-12 3/150 2026-04-17 19:10 by ÑôÑôÑô^_^
[ÂÛÎÄͶ¸å] ÓÐûÓнÓÊձȽϿìµÄsciÆÚ¿¯Ñ½£¬×îºÃÔÚÒ»¸öÔÂÖ®Äڵģ¬ÑÐÈýº¢×ÓÇó±ÏÒµ 20+4 Ö®»¤×Å 2026-04-16 5/250 2026-04-17 10:02 by bobvan
[¿¼ÑÐ] 22ר˶Çóµ÷¼Á +10 haoyunÉϰ¶ 2026-04-11 12/600 2026-04-16 22:21 by Öí»á·É
[¿¼ÑÐ] 327Çóµ÷¼Á +26 Xxjc1107. 2026-04-13 29/1450 2026-04-16 10:52 by Espannnnnol
[¿¼ÑÐ] 290µ÷¼ÁÉúÎï0860 +38 ÍÛ¹þ¹þ£¬¡£ 2026-04-11 44/2200 2026-04-16 09:52 by cuisz
[¿¼ÑÐ] ÉúÎïѧµ÷¼Á +9 Ö½ÉÈzhishan 2026-04-13 9/450 2026-04-15 18:28 by ANÁ÷800
[¿¼ÑÐ] 310Çóµ÷¼Á +16 666ÕæºÃ 2026-04-11 18/900 2026-04-15 13:28 by ºÚ¿Æ¼¼¿óÒµ
[¿¼ÑÐ] 271Çóµ÷¼Á +35 2261744733 2026-04-11 41/2050 2026-04-14 15:36 by zs92450
[¿¼ÑÐ] 085600²ÄÁÏÓ뻯¹¤329·ÖÇóµ÷¼Á +24 Ò¶zilin 2026-04-13 25/1250 2026-04-14 09:20 by ÊÔ¹ÜÆÆÁÑ
[¿¼ÑÐ] ũѧ0904 312Çóµ÷¼Á +4 Say Never 2026-04-11 4/200 2026-04-14 09:10 by zs92450
[¿¼ÑÐ] 300·ÖÇóµ÷¼Á £¨085501»úеר˶£¬±¾¿ÆÑï´ó£© +9 xu@841019 2026-04-11 10/500 2026-04-14 08:48 by ľľmumu¡«
[¿¼ÑÐ] Ò»Ö¾Ô¸ÖÐÄÏ´óѧ 0855 »úе 286 Çóµ÷¼Á +11 ²»»á³ÔÈâ 2026-04-12 11/550 2026-04-13 21:59 by bljnqdcc
[¿¼ÑÐ] 297¹¤¿Æ£¬Çóµ÷¼Á? +13 ºÓÄÏũҵ´óѧ-ÄÜ 2026-04-12 13/650 2026-04-13 14:12 by dingyanbo1
[¿¼ÑÐ] ²ÄÁÏ¿¼Ñе÷¼Á +29 ÔÆÄ¾´ï´ï 2026-04-11 31/1550 2026-04-13 13:32 by lyh³ÀÏʦ
[¿¼ÑÐ] Ò»Ö¾Ô¸085802 323·ÖÇóµ÷¼Á +13 drizzle_9 2026-04-12 14/700 2026-04-13 10:26 by Faiz5552
[¿¼ÑÐ] 0831Ò»ÂÖµ÷¼Áʧ°ÜÇóÖú +10 СÐÜî£î£_s 2026-04-11 10/500 2026-04-12 22:43 by ³¤¹­°Á
[¿¼ÑÐ] 346·Ö£¬¹¤¿Æ0854Çóµ÷¼Á£¬×¨Ë¶ +6 moser233 2026-04-12 7/350 2026-04-12 22:11 by fqwang
[¿¼ÑÐ] 339Çóµ÷¼Á +8 hanwudada 2026-04-11 9/450 2026-04-12 15:36 by laoshidan
[¿¼ÑÐ] Çóµ÷¼Á +3 θ¾·ÂÎÀÛÁË 2026-04-11 5/250 2026-04-11 14:13 by luhong1990
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û