Znn3bq.jpeg
²é¿´: 6144  |  »Ø¸´: 12
±¾Ìû²úÉú 1 ¸ö ÊýѧEPI £¬µã»÷ÕâÀï½øÐв鿴

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
»ØÌûÖö¥ ( ¹²ÓÐ1¸ö )

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
ÆÕͨ»ØÌû

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

Óêäìäì

гæ (³õÈëÎÄ̳)

ÒýÓûØÌû:
4Â¥: Originally posted by wurongjun at 2015-12-03 11:34:41
SÇúÏßÄ£ÐÍ!
f(x)=1/(a+b*exp(-x))

sss.JPG

·Ç³£¸ÐлÄúµÄ»Ø´ð£¬ÎÒ»¹ÏëÎÊһϣ¬¹ØÓÚ´ËÀàÇúÏßÈçºÎÕÒ³ö¶à¸öº¯Êý±í´ïʽ¡£ÄúÊÇÀûÓÃʲôÈí¼þÕÒµ½µÄ£¬¿ÉÒÔ½øÒ»²½½»Á÷Âð£¿ÆÚ´ýÄúµÄ»Ø´ð£¡£¡£¡
5Â¥2015-12-04 15:43:17
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Óêäìäì

гæ (³õÈëÎÄ̳)

ÒýÓûØÌû:
2Â¥: Originally posted by Ò£¿ØÐ¡³ó at 2015-12-03 11:01:07
sigmoidº¯Êý
1/(1+exp(-x))

·Ç³£¸ÐлÄúµÄ»Ø´ð£¬ÆÚÍûÓëÄúµÄ½øÒ»²½½»Á÷£¬ÄúÊǸù¾ÝʲôԭÀíÀ´½üËÆÄâºÏ³ö¸ÃÇúÏߵĺ¯ÊýµÄ£¬Ï£ÍûÄúµÄ½øÒ»²½½â´ð£¡£¡£¡
6Â¥2015-12-04 15:47:28
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Óêäìäì

гæ (³õÈëÎÄ̳)

ÒýÓûØÌû:
3Â¥: Originally posted by Ò£¿ØÐ¡³ó at 2015-12-03 11:10:14
sigmoidº¯Êý
1/(1+exp(-x))

·Ç³£¸ÐлÄúµÄ»Ø¸´£¡
7Â¥2015-12-04 15:53:55
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

wurongjun

ר¼Ò¹ËÎÊ (Ö°Òµ×÷¼Ò)

ÒýÓûØÌû:
5Â¥: Originally posted by Óêäìäì at 2015-12-04 15:43:17
·Ç³£¸ÐлÄúµÄ»Ø´ð£¬ÎÒ»¹ÏëÎÊһϣ¬¹ØÓÚ´ËÀàÇúÏßÈçºÎÕÒ³ö¶à¸öº¯Êý±í´ïʽ¡£ÄúÊÇÀûÓÃʲôÈí¼þÕÒµ½µÄ£¬¿ÉÒÔ½øÒ»²½½»Á÷Âð£¿ÆÚ´ýÄúµÄ»Ø´ð£¡£¡£¡...

º¯Êý±í´ïʽһ°ãÓɾ­Ñé»ò±³¾°ÖªÊ¶È·¶¨,SÇúÏßÊdz£ÓÃÄ£ÐÍ!
Ö»ÒªÒÑÖªÊý¾Ýµã´óÌåÉÏ·ûºÏÕâ¸öÄ£Ð͵ÄÌØµã,¿ÉÓÉ×îС¶þ³Ë·¨È·¶¨ÆäÖеIJÎÊý!
ÉÆ¶ñµ½Í·ÖÕÓб¨,È˼äÕýµÀÊDz×É£.
8Â¥2015-12-04 16:12:21
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!...

ÄÇÕâÑùµÄ»°£¬¸Ãº¯ÊýÊǸù¾Ý¾ßÌåÇé¿öÀ´È·¶¨Ä£ÐÍÖеIJÎÊý°É£¿
9Â¥2015-12-04 17:11:11
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
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ Óêäìäì µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] ²ÄÁϹ¤³Ì281»¹Óе÷¼Á»ú»áÂð +29 xaw. 2026-04-11 30/1500 2026-04-13 00:20 by 1005715100
[¿¼ÑÐ] 346·Ö£¬¹¤¿Æ0854Çóµ÷¼Á£¬×¨Ë¶ +6 moser233 2026-04-12 7/350 2026-04-12 22:11 by fqwang
[¿¼ÑÐ] Ò»Ö¾Ô¸Î÷±±¹¤Òµ´óѧ289 085602 +33 yangæÃ 2026-04-10 34/1700 2026-04-12 08:11 by Art1977
[¿¼ÑÐ] 332Çóµ÷¼Á +14 ½¶½¶123 2026-04-10 14/700 2026-04-12 00:27 by À¶ÔÆË¼Óê
[¿¼ÑÐ] 22ר˶Çóµ÷¼Á +6 haoyunÉϰ¶ 2026-04-11 8/400 2026-04-11 23:21 by labixiaoqiao
[¿¼ÑÐ] µ÷¼Á +6 ÇàµÆ²»¸º 2026-04-09 6/300 2026-04-11 20:35 by dongdian1
[¿¼ÑÐ] 086003µ÷¼ÁÇóÖú +21 ËÕß®Íò 2026-04-09 22/1100 2026-04-11 20:25 by dongdian1
[¿¼ÑÐ] »¯Ñ§308·ÖÇóµ÷¼Á +22 ÄãºÃÃ÷ÌìÄãºÃ 2026-04-07 24/1200 2026-04-11 11:14 by ChemPharm
[¿¼ÑÐ] 22408 327·ÖÇóµ÷¼Á +4 ÔÏ·çkon 2026-04-10 4/200 2026-04-11 09:51 by Öí»á·É
[¿¼ÑÐ] 22408µ÷¼ÁÇóÖú +7 ì±12 2026-04-09 9/450 2026-04-11 09:23 by ŶŶ123
[¿¼ÑÐ] ÉúÎïѧ308Çóµ÷¼Á£¨Ò»Ö¾Ô¸»ª¶«Ê¦´ó£© +6 ÏàÐűػá¹ââÍòÕ 2026-04-10 6/300 2026-04-11 05:23 by zhuwenxu
[¿¼ÑÐ] µ÷¼Á +19 СÕÅZA 2026-04-10 20/1000 2026-04-10 22:08 by Öí»á·É
[¿¼ÑÐ] 085800 ÄÜÔ´¶¯Á¦Çóµ÷¼Á +6 °¢biu°¡°¡°¡°¡°¡ 2026-04-10 6/300 2026-04-10 15:03 by hemengdong
[¿¼ÑÐ] 1U¶Ü¼ÇµÃ¼ÇµÃ¾Í +9 sanjin020722 2026-04-08 10/500 2026-04-09 14:11 by Ê«Óë×ÔÓÉ
[¿¼ÑÐ] 327Çóµ÷¼Á +10 Xxjc1107. 2026-04-06 11/550 2026-04-09 01:21 by lature00
[¿¼ÑÐ] 0703»¯Ñ§µ÷¼Á 348·Ö +14 °¦ÎÒ³¬ÕæÃ»ÕÐÁË 2026-04-06 15/750 2026-04-08 19:16 by ÎÒ¼õ·Ê1
[¿¼ÑÐ] 331Çóµ÷¼Á +5 ÕÅÔªÒ» 2026-04-07 6/300 2026-04-07 22:13 by hemengdong
[¿¼ÑÐ] 085602µ÷¼Á ³õÊÔ×Ü·Ö335 +3 19123253302 2026-04-06 3/150 2026-04-07 18:00 by jp9609
[¿¼ÑÐ] 081200-11408-367ѧ˶Çóµ÷¼Á +4 1_2_3111 2026-04-06 4/200 2026-04-07 08:13 by jp9609
[¿¼ÑÐ] 22408 331·ÖÇóµ÷¼Á +4 y__1 2026-04-06 4/200 2026-04-06 17:26 by ÍÁľ˶ʿÕÐÉú
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û