²é¿´: 6068  |  »Ø¸´: 12
±¾Ìû²úÉú 1 ¸ö ÊýѧEPI £¬µã»÷ÕâÀï½øÐв鿴
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

Óêäìäì

гæ (³õÈëÎÄ̳)

[ÇóÖú] ÇëÎÊÓëtanh(x)¡¢arctan(x)ÕâÁ½¸öº¯ÊýµÄÇúÏßÏàËÆµÄº¯Êý»¹ÓÐÄÄЩ£¡£¡ ÒÑÓÐ2È˲ÎÓë

Çë¸÷λÊýѧ´óÅ£ÃÇ£¬Ìáµã½¨Ò飡£¡£¡

ÇëÎÊÓëtanh(x)¡¢arctan(x)ÕâÁ½¸öº¯ÊýµÄÇúÏßÏàËÆµÄº¯Êý»¹ÓÐÄÄЩ£¡£¡
20151201_170356(1).jpg  ¾ßÓÐÕâÑùÌØÕ÷µÄº¯Êý»¹ÓÐÄÄÐ©ÄØ£¿
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

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

Óêäìäì

гæ (³õÈëÎÄ̳)

ÒýÓûØÌû:
8Â¥: Originally posted by wurongjun at 2015-12-04 16:12:21
º¯Êý±í´ïʽһ°ãÓɾ­Ñé»ò±³¾°ÖªÊ¶È·¶¨,SÇúÏßÊdz£ÓÃÄ£ÐÍ!
Ö»ÒªÒÑÖªÊý¾Ýµã´óÌåÉÏ·ûºÏÕâ¸öÄ£Ð͵ÄÌØµã,¿ÉÓÉ×îС¶þ³Ë·¨È·¶¨ÆäÖеIJÎÊý!...

»¹ÓÐÎÒ²»Ì«Çå³þ×îС¶þ³Ë·¨ÔõôʹÓã¬ÄãÓкõÄѧϰ½¨ÒéÂð£¿
10Â¥2015-12-04 17:27:52
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 13 ¸ö»Ø´ð

Ò£¿ØÐ¡³ó

½ð³æ (ÕýʽдÊÖ)

ÖÐÎç12µãÆð´²³ÔÔç·¹~
2Â¥2015-12-03 11:01:07
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Ò£¿ØÐ¡³ó

½ð³æ (ÕýʽдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
Óêäìäì(Edstrayer´ú·¢): ½ð±Ò+1, rs 2015-12-05 00:59:59
sigmoidº¯Êý
1/(1+exp(-x))

·¢×ÔСľ³æAndroid¿Í»§¶Ë
ÖÐÎç12µãÆð´²³ÔÔç·¹~
3Â¥2015-12-03 11:10:14
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

wurongjun

ר¼Ò¹ËÎÊ (Ö°Òµ×÷¼Ò)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
Óêäìäì(Edstrayer´ú·¢): ½ð±Ò+2, rs 2015-12-05 01:00:32
Edstrayer: ÊýѧEPI+1 2016-01-02 00:26:37
SÇúÏßÄ£ÐÍ!
f(x)=1/(a+b*exp(-x))
ÇëÎÊÓëtanh(x)¡¢arctan(x)ÕâÁ½¸öº¯ÊýµÄÇúÏßÏàËÆµÄº¯Êý»¹ÓÐÄÄЩ£¡£¡-1
sss.JPG

ÉÆ¶ñµ½Í·ÖÕÓб¨,È˼äÕýµÀÊDz×É£.
4Â¥2015-12-03 11:34:41
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 332Çóµ÷¼Á +3 032500 2026-03-25 3/150 2026-03-25 18:36 by haxia
[¿¼ÑÐ] ²ÄÁϵ÷¼Á 5+3 ÏëÒªÒ»ºøÌÒ»¨Ë® 2026-03-25 6/300 2026-03-25 18:20 by xcjcqu
[¿¼ÑÐ] 359Çóµ÷¼Á +3 ÍõÁ˸öéª 2026-03-25 3/150 2026-03-25 12:50 by Dyhoer
[¿¼ÑÐ] 0854µç×ÓÐÅÏ¢Çóµ÷¼Á 324 +4 Promise-jyl 2026-03-23 4/200 2026-03-25 11:36 by Sugarlight
[¿¼ÑÐ] 085600²ÄÁÏÓ뻯¹¤µ÷¼Á +9 A-¶ßÀ²ZÃÎ 2026-03-23 15/750 2026-03-25 11:18 by Ainin_
[¿¼ÑÐ] ²ÄÁÏר˶ÕÒµ÷¼Á +5 ¹þ¹þ¹þºðºðºð¹þ 2026-03-23 5/250 2026-03-24 19:07 by ÁËÁËÁËÁË¡£¡£
[¿¼ÑÐ] 292Çóµ÷¼Á +4 ¶ì¶ì¶ì¶î¶î¶î¶î¶ 2026-03-24 4/200 2026-03-24 16:41 by peike
[¿¼ÑÐ] Ò»Ö¾Ô¸211 ³õÊÔ270·Ö Çóµ÷¼Á +5 ¹ÈÓêÉϰ¶ 2026-03-23 6/300 2026-03-24 16:32 by laoshidan
[¿¼²©] É격26Äê +4 °Ë6°Ë68 2026-03-19 4/200 2026-03-24 15:49 by СBenºÇºÇ
[¿¼ÑÐ] »·¾³Ñ§Ë¶288Çóµ÷¼Á +8 ƤƤƤ123456 2026-03-22 8/400 2026-03-23 23:47 by ÈÈÇéɳĮ
[¿¼ÑÐ] 276Çóµ÷¼Á +3 YNRYG 2026-03-21 4/200 2026-03-23 08:31 by ×íÔÚ·çÀï
[¿¼ÑÐ] Ò»Ö¾Ô¸Î÷°²½»Í¨´óѧ²ÄÁϹ¤³Ìרҵ 282·ÖÇóµ÷¼Á +11 ·ãÇÅZL 2026-03-18 13/650 2026-03-22 20:26 by edmund7
[¿¼ÑÐ] 324Çóµ÷¼Á +6 luckyѽѽѽѼ 2026-03-20 6/300 2026-03-22 16:01 by ColorlessPI
[¿¼ÑÐ] 298Çóµ÷¼ÁÒ»Ö¾Ô¸211 +3 Éϰ¶6666@ 2026-03-20 3/150 2026-03-22 15:50 by ColorlessPI
[¿¼ÑÐ] Çóµ÷¼Á +7 Auroracx 2026-03-22 7/350 2026-03-22 12:38 by ËØÑÕÇã³Ç1988
[¿¼ÑÐ] 297Çóµ÷¼Á +3 ϲ»¶»¹ÊDz»¸ÊÐÄ 2026-03-20 3/150 2026-03-21 18:33 by ѧԱ8dgXkO
[¿¼ÑÐ] Ò»Ö¾Ô¸ÖØÇì´óѧ085700×ÊÔ´Óë»·¾³×Ü·Ö308Çóµ÷¼Á +7 īīĮ 2026-03-20 7/350 2026-03-21 16:36 by barlinike
[¿¼ÑÐ] Ò»Ö¾Ô¸ËÕÖÝ´óѧ²ÄÁÏÇóµ÷¼Á£¬×Ü·Ö315£¨Ó¢Ò»£© +5 sbdksD 2026-03-19 5/250 2026-03-20 22:10 by luoyongfeng
[¿¼ÑÐ] Çóµ÷¼Á +3 @taotao 2026-03-20 3/150 2026-03-20 19:35 by JourneyLucky
[¿¼ÑÐ] ²ÄÁÏ¿¼Ñе÷¼Á +3 xwt¡£ 2026-03-19 3/150 2026-03-19 11:22 by wãåÑôw
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û