-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathindex.html
More file actions
1301 lines (842 loc) · 44.1 KB
/
index.html
File metadata and controls
1301 lines (842 loc) · 44.1 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
<!DOCTYPE HTML>
<html lang="zh-CN">
<link rel="stylesheet" href="/js/prism/prism.css">
<head>
<!-- hexo-inject:begin --><!-- hexo-inject:end --><meta charset="utf-8">
<meta name="keywords" content="Python,Latex,Java,MatLab,R等">
<meta name="description" content="数学竞赛,数据分析,数学建模,机器学习,云计算">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
<meta name="renderer" content="webkit|ie-stand|ie-comp">
<meta name="mobile-web-app-capable" content="yes">
<meta name="format-detection" content="telephone=no">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent">
<!-- Global site tag (gtag.js) - Google Analytics -->
<title>鹏鹏的学习乐园</title>
<link rel="icon" type="image/png" href="/me.png">
<link rel="stylesheet" type="text/css" href="/libs/awesome/css/all.css">
<link rel="stylesheet" type="text/css" href="/libs/materialize/materialize.min.css">
<link rel="stylesheet" type="text/css" href="/libs/aos/aos.css">
<link rel="stylesheet" type="text/css" href="/libs/animate/animate.min.css">
<link rel="stylesheet" type="text/css" href="/libs/lightGallery/css/lightgallery.min.css">
<link rel="stylesheet" type="text/css" href="/css/matery.css">
<link rel="stylesheet" type="text/css" href="/css/my.css">
<script src="/libs/jquery/jquery.min.js"></script>
<link href="https://cdn.bootcss.com/KaTeX/0.7.1/katex.min.css" rel="stylesheet">
<meta name="generator" content="Hexo 4.2.0"><link href="https://cdn.bootcss.com/KaTeX/0.11.1/katex.min.css" rel="stylesheet" /><!-- hexo-inject:begin --><!-- hexo-inject:end --></head>
# <script src="https://sdk.jinrishici.com/v2/browser/jinrishici.js" charset="utf-8"></script>
<body>
<!-- hexo-inject:begin --><!-- hexo-inject:end --><header class="navbar-fixed">
<nav id="headNav" class="bg-color nav-transparent">
<div id="navContainer" class="nav-wrapper container">
<div class="brand-logo">
<a href="/" class="waves-effect waves-light">
<img src="/me.png" class="logo-img" alt="LOGO">
<span class="logo-span">鹏鹏的学习乐园</span>
</a>
</div>
<a href="#" data-target="mobile-nav" class="sidenav-trigger button-collapse"><i class="fas fa-bars"></i></a>
<ul class="right nav-menu">
<li class="hide-on-med-and-down nav-item">
<a href="/" class="waves-effect waves-light">
<i class="fas fa-home" style="zoom: 0.6;"></i>
<span>首页</span>
</a>
</li>
<li class="hide-on-med-and-down nav-item">
<a href="/tags" class="waves-effect waves-light">
<i class="fas fa-tags" style="zoom: 0.6;"></i>
<span>标签</span>
</a>
</li>
<li class="hide-on-med-and-down nav-item">
<a href="/categories" class="waves-effect waves-light">
<i class="fas fa-bookmark" style="zoom: 0.6;"></i>
<span>分类</span>
</a>
</li>
<li class="hide-on-med-and-down nav-item">
<a href="/archives" class="waves-effect waves-light">
<i class="fas fa-archive" style="zoom: 0.6;"></i>
<span>归档</span>
</a>
</li>
<li class="hide-on-med-and-down nav-item">
<a href="/about" class="waves-effect waves-light">
<i class="fas fa-user-circle" style="zoom: 0.6;"></i>
<span>关于</span>
</a>
</li>
<li class="hide-on-med-and-down nav-item">
<a href="/contact" class="waves-effect waves-light">
<i class="fas fa-comments" style="zoom: 0.6;"></i>
<span>留言板</span>
</a>
</li>
<li class="hide-on-med-and-down nav-item">
<a href="/friends" class="waves-effect waves-light">
<i class="fas fa-address-book" style="zoom: 0.6;"></i>
<span>友情链接</span>
</a>
</li>
<li>
<a href="#searchModal" class="modal-trigger waves-effect waves-light">
<i id="searchIcon" class="fas fa-search" title="搜索" style="zoom: 0.85;"></i>
</a>
</li>
</ul>
<div id="mobile-nav" class="side-nav sidenav">
<div class="mobile-head bg-color">
<img src="/me.png" class="logo-img circle responsive-img">
<div class="logo-name">鹏鹏的学习乐园</div>
<div class="logo-desc">
数学竞赛,数据分析,数学建模,机器学习,云计算
</div>
</div>
<ul class="menu-list mobile-menu-list">
<li class="m-nav-item">
<a href="/" class="waves-effect waves-light">
<i class="fa-fw fas fa-home"></i>
首页
</a>
</li>
<li class="m-nav-item">
<a href="/tags" class="waves-effect waves-light">
<i class="fa-fw fas fa-tags"></i>
标签
</a>
</li>
<li class="m-nav-item">
<a href="/categories" class="waves-effect waves-light">
<i class="fa-fw fas fa-bookmark"></i>
分类
</a>
</li>
<li class="m-nav-item">
<a href="/archives" class="waves-effect waves-light">
<i class="fa-fw fas fa-archive"></i>
归档
</a>
</li>
<li class="m-nav-item">
<a href="/about" class="waves-effect waves-light">
<i class="fa-fw fas fa-user-circle"></i>
关于
</a>
</li>
<li class="m-nav-item">
<a href="/contact" class="waves-effect waves-light">
<i class="fa-fw fas fa-comments"></i>
留言板
</a>
</li>
<li class="m-nav-item">
<a href="/friends" class="waves-effect waves-light">
<i class="fa-fw fas fa-address-book"></i>
友情链接
</a>
</li>
</ul>
</div>
</div>
</nav>
</header>
<style>
.carousel-control {
width: 45px;
height: 45px;
line-height: 55px;
border-radius: 45px;
background: transparent;
cursor: pointer;
z-index: 100;
}
#prev-cover {
position: absolute;
top: 48%;
left: 8px;
}
#next-cover {
position: absolute;
top: 48%;
right: 8px;;
}
#prev-cover i {
margin-right: 3px;
}
#next-cover i {
margin-left: 3px;
}
.carousel-control:hover {
background-color: rgba(0, 0, 0, .4);
}
.carousel-control i {
color: #fff;
font-size: 2.4rem;
}
</style>
<div class="carousel carousel-slider center index-cover" data-indicators="true" style="margin-top: -64px;">
<div class="carousel-item red white-text bg-cover about-cover">
<div class="container">
<div class="row">
<div class="col s10 offset-s1 m8 offset-m2 l8 offset-l2">
<div class="brand">
<div class="title center-align">
王胜鹏
</div>
<div class="description center-align">
<span id="subtitle"></span>
<script src="https://cdn.jsdelivr.net/npm/typed.js@2.0.11"></script>
<script>
var typed = new Typed("#subtitle", {
strings: ['从来没有真正的绝境, 只有心灵的迷途','越努力，越幸运。'],
startDelay: 300,
typeSpeed: 100,
loop: true,
backSpeed: 50,
showCursor: true
});
</script>
</div>
</div>
</div>
</div>
<script>
// 每天切换 banner 图. Switch banner image every day.
$('.bg-cover').css('background-image', 'url(/medias/banner/2.jpg)');
</script>
<div class="cover-btns">
<a href="#indexCard" class="waves-effect waves-light btn">
<i class="fa fa-angle-double-down"></i>开始阅读
</a>
</div>
<div class="cover-social-link">
<a href="https://blog.csdn.net/abcwsp" class="tooltipped" target="_blank" data-tooltip="关注我的CSDN: https://blog.csdn.net/abcwsp" data-position="top" data-delay="50">
<i class="fab fa-csdn">C</i>
</a>
<a href="https://github.com/wsp666" class="tooltipped" target="_blank" data-tooltip="访问我的GitHub" data-position="top" data-delay="50">
<i class="fab fa-github"></i>
</a>
<a href="https://www.zhihu.com/people/yu-zhong-man-bu-25-82/activities" class="tooltipped" target="_blank" data-tooltip="关注我的知乎: https://www.zhihu.com/people/yu-zhong-man-bu-25-82/activities" data-position="top" data-delay="50">
<i class="fab fa-zhihu1">知</i>
</a>
<a href="tencent://AddContact/?fromId=50&fromSubId=1&subcmd=all&uin=694848081" class="tooltipped" target="_blank" data-tooltip="QQ联系我: 694848081" data-position="top" data-delay="50">
<i class="fab fa-qq"></i>
</a>
<a href="mailto:694848081@qq.com" class="tooltipped" target="_blank" data-tooltip="邮件联系我" data-position="top" data-delay="50">
<i class="fas fa-envelope-open"></i>
</a>
<a href="https://mp.weixin.qq.com/s?__biz=MzU5OTg4NjkxNg==&mid=2247484666&idx=1&sn=07655cd886f08f511532f966d40a233b&chksm=feaf59d1c9d8d0c769ccf8afad202b47bc9d6fc906e1c08182b7265cafc5bb87ea6f4d2f9d8e&mpshare=1&scene=23&srcid=&sharer_sharetime=1588749318133&sharer_shareid=c2c0a6d0a611bf713410b4cff21b2c8e#rd" class="tooltipped" target="_blank" data-tooltip="关注我的公众号: whut数学" data-position="top" data-delay="50">
<i class="fab fa-csdn">微</i>
</a>
</div>
</div>
</div>
</div>
<script>
$(function () {
let coverSlider = $('.carousel');
//用户触摸轮播自动 restartPlay 是否生效
let initUserPressedOrDraggedActive = false
//用户触摸轮播自动 restartPlay
function initUserPressedOrDragged(instance) {
setInterval(() => {
if (instance.pressed || instance.dragged) {
// console.log('initUserPressedOrDragged: ',instance.pressed,instance.dragged)
restartPlay()
}
}, 1000)
}
coverSlider.carousel({
duration: Number('120'),
fullWidth: true,
indicators: 'true' === 'true',
onCycleTo() {
if (!initUserPressedOrDraggedActive) {
// console.log('initUserPressedOrDraggedActive')
initUserPressedOrDragged(this)
initUserPressedOrDraggedActive = true
}
},
})
let carouselIntervalId;
// Loop to call the next cover article picture.
let autoCarousel = function () {
carouselIntervalId = setInterval(function () {
coverSlider.carousel('next');
}, 5000);
};
autoCarousel();
function restartPlay() {
clearInterval(carouselIntervalId);
autoCarousel();
};
// prev and next cover post.
$('#prev-cover').click(function () {
coverSlider.carousel('prev');
restartPlay();
});
$('#next-cover').click(function () {
coverSlider.carousel('next');
restartPlay();
});
});
</script>
<main class="content">
<div id="indexCard" class="index-card">
<div class="container ">
<div class="card">
<div class="card-content">
<div class="dream">
<div class="title center-align">
<i class="far fa-lightbulb"></i> 我的梦想
</div>
<div class="row">
<div class="col l8 offset-l2 m10 offset-m1 s10 offset-s1 center-align text">
不是每个人都应该像我这样去建造一座水晶大教堂，但是每个人都应该拥有自己的梦想，设计自己的梦想，追求自己的梦想，实现自己的梦想。梦想是生命的灵魂，是心灵的灯塔，是引导人走向成功的信仰。有了崇高的梦想，只要矢志不渝地追求，梦想就会成为现实，奋斗就会变成壮举，生命就会创造奇迹。——罗伯·舒乐
</div>
</div>
</div>
<div id="recommend-sections" class="recommend">
</div>
</div>
</div>
</div>
</div>
<!-- 所有文章卡片 -->
<article id="articles" class="container articles">
<div class="row article-row">
<div class="article col s12 m6 l4" data-aos="zoom-in">
<div class="card">
<a href="/posts/64ff6a27.html">
<div class="card-image">
<img src="/medias/featureimages/2.jpg" class="responsive-img" alt="即时到位与建图">
<span class="card-title">即时到位与建图</span>
</div>
</a>
<div class="card-content article-content">
<div class="summary block-with-text">
传感器
一类传感器是携带于机器人本体上的， 例如机器人的轮式编码器、 相机、 激光等等。 另 一类是安装于环境中的，例如前面讲的导轨、二维码标志等等。安装于环境中的传感设备， 通常能够直接测量到机器人的位置信息，简单有效地解决定位问题。然而
</div>
<div class="publish-info">
<span class="publish-date">
<i class="far fa-clock fa-fw icon-date"></i>2022-01-04
</span>
<span class="publish-author">
<i class="fas fa-bookmark fa-fw icon-category"></i>
<a href="/categories/SLAM/" class="post-category">
SLAM
</a>
</span>
</div>
</div>
<div class="card-action article-tags">
<a href="/tags/SLAM%E5%8D%81%E5%9B%9B%E8%AE%B2/">
<span class="chip bg-color">SLAM十四讲</span>
</a>
</div>
</div>
</div>
<div class="article col s12 m6 l4" data-aos="zoom-in">
<div class="card">
<a href="/posts/76028740.html">
<div class="card-image">
<img src="/medias/featureimages/4.jpg" class="responsive-img" alt="非线性优化">
<span class="card-title">非线性优化</span>
</div>
</a>
<div class="card-content article-content">
<div class="summary block-with-text">
非线性优化
状态估计问题
最大后验与最大似然
经典slam模型：
{xk=f(xk−1,uk)+wkzk,j=h(yj,xk)+vk,j\begin{cases}
\boldsymbol{x}_k=f(\boldsymbol{x}_{k-
</div>
<div class="publish-info">
<span class="publish-date">
<i class="far fa-clock fa-fw icon-date"></i>2022-01-04
</span>
<span class="publish-author">
<i class="fas fa-bookmark fa-fw icon-category"></i>
<a href="/categories/SLAM/" class="post-category">
SLAM
</a>
</span>
</div>
</div>
<div class="card-action article-tags">
<a href="/tags/SLAM%E5%8D%81%E5%9B%9B%E8%AE%B2/">
<span class="chip bg-color">SLAM十四讲</span>
</a>
</div>
</div>
</div>
<div class="article col s12 m6 l4" data-aos="zoom-in">
<div class="card">
<a href="/posts/6073489d.html">
<div class="card-image">
<img src="/medias/featureimages/13.jpg" class="responsive-img" alt="SLAM">
<span class="card-title">SLAM</span>
</div>
</a>
<div class="card-content article-content">
<div class="summary block-with-text">
SLAM
SLAM 是 Simultaneous Localization and Mapping 的缩写，中文译作“同时定位与 地图构建”。它是指搭载特定传感器的主体，在没有环境先验信息的情况下，于运动过 程中建立环境的模型，同时估计自己
</div>
<div class="publish-info">
<span class="publish-date">
<i class="far fa-clock fa-fw icon-date"></i>2022-01-04
</span>
<span class="publish-author">
<i class="fas fa-bookmark fa-fw icon-category"></i>
<a href="/categories/SLAM/" class="post-category">
SLAM
</a>
</span>
</div>
</div>
<div class="card-action article-tags">
<a href="/tags/SLAM%E5%8D%81%E5%9B%9B%E8%AE%B2/">
<span class="chip bg-color">SLAM十四讲</span>
</a>
</div>
</div>
</div>
<div class="article col s12 m6 l4" data-aos="zoom-in">
<div class="card">
<a href="/posts/df626136.html">
<div class="card-image">
<img src="/medias/featureimages/1.jpg" class="responsive-img" alt="位姿的数学描述">
<span class="card-title">位姿的数学描述</span>
</div>
</a>
<div class="card-content article-content">
<div class="summary block-with-text">
旋转矩阵
相机可以看成三维空间的刚体，于是位置是指相机在空间中的哪个地方，而姿态则是指相机的朝向。
内积可以描述向量间的投影关系。
外积表示向量的旋转。
a×b=[ijka1a2a3b1b2b3]=[a2b3−a3b2a3b1−a1b3a1
</div>
<div class="publish-info">
<span class="publish-date">
<i class="far fa-clock fa-fw icon-date"></i>2022-01-04
</span>
<span class="publish-author">
<i class="fas fa-bookmark fa-fw icon-category"></i>
<a href="/categories/SLAM/" class="post-category">
SLAM
</a>
</span>
</div>
</div>
<div class="card-action article-tags">
<a href="/tags/SLAM%E5%8D%81%E5%9B%9B%E8%AE%B2/">
<span class="chip bg-color">SLAM十四讲</span>
</a>
</div>
</div>
</div>
<div class="article col s12 m6 l4" data-aos="zoom-in">
<div class="card">
<a href="/posts/dad5653b.html">
<div class="card-image">
<img src="/medias/featureimages/4.jpg" class="responsive-img" alt="相机模型">
<span class="card-title">相机模型</span>
</div>
</a>
<div class="card-content article-content">
<div class="summary block-with-text">
相机模型
针孔模型和畸变构成了相机的内参数。
针孔相机模型
物体与像的数学模型
像与像素的数学模型
{u=αX′+cx=fxXZ+cxv=βY′+cy=fyYZ+cy\begin{cases}
u=\alpha X^{'}+c
</div>
<div class="publish-info">
<span class="publish-date">
<i class="far fa-clock fa-fw icon-date"></i>2022-01-04
</span>
<span class="publish-author">
<i class="fas fa-bookmark fa-fw icon-category"></i>
<a href="/categories/SLAM/" class="post-category">
SLAM
</a>
</span>
</div>
</div>
<div class="card-action article-tags">
<a href="/tags/SLAM%E5%8D%81%E5%9B%9B%E8%AE%B2/">
<span class="chip bg-color">SLAM十四讲</span>
</a>
</div>
</div>
</div>
<div class="article col s12 m6 l4" data-aos="zoom-in">
<div class="card">
<a href="/posts/e8431697.html">
<div class="card-image">
<img src="/medias/featureimages/3.jpg" class="responsive-img" alt="李群与李代数">
<span class="card-title">李群与李代数</span>
</div>
</a>
<div class="card-content article-content">
<div class="summary block-with-text">
李群与李代数
在 SLAM 中位姿是未知的，而我们需要解决什 么样的相机位姿最符合当前观测数据这样的问题。一种典型的方式是把它构建成一个优化 问题，求解最优的 R;t，使得误差最小化。 通过李群——李代数间的转换关系，旋转矩阵自身是带有约束
</div>
<div class="publish-info">
<span class="publish-date">
<i class="far fa-clock fa-fw icon-date"></i>2022-01-04
</span>
<span class="publish-author">
<i class="fas fa-bookmark fa-fw icon-category"></i>
<a href="/categories/SLAM/" class="post-category">
SLAM
</a>
</span>
</div>
</div>
<div class="card-action article-tags">
<a href="/tags/SLAM%E5%8D%81%E5%9B%9B%E8%AE%B2/">
<span class="chip bg-color">SLAM十四讲</span>
</a>
</div>
</div>
</div>
<div class="article col s12 m6 l4" data-aos="zoom-in">
<div class="card">
<a href="/posts/f7d407e6.html">
<div class="card-image">
<img src="/medias/featureimages/6.jpg" class="responsive-img" alt="机器学习(八)">
<span class="card-title">机器学习(八)</span>
</div>
</a>
<div class="card-content article-content">
<div class="summary block-with-text">
提升方法
笔记摘要
在PAC（概率近似正确(PAC, Probably approximately correct)）学习框架下，一个概念是强可学习的充分必要条件是这个概念是弱可学习的。
提升方法的两个问题
在每一轮如何改变训练数据的
</div>
<div class="publish-info">
<span class="publish-date">
<i class="far fa-clock fa-fw icon-date"></i>2021-10-30
</span>
<span class="publish-author">
<i class="fas fa-bookmark fa-fw icon-category"></i>
<a href="/categories/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/" class="post-category">
机器学习
</a>
</span>
</div>
</div>
<div class="card-action article-tags">
<a href="/tags/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/">
<span class="chip bg-color">机器学习</span>
</a>
<a href="/tags/%E6%9D%8E%E8%88%AA%E7%89%88/">
<span class="chip bg-color">李航版</span>
</a>
</div>
</div>
</div>
<div class="article col s12 m6 l4" data-aos="zoom-in">
<div class="card">
<a href="/posts/3e86b8ea.html">
<div class="card-image">
<img src="/medias/featureimages/22.jpg" class="responsive-img" alt="机器学习(七)">
<span class="card-title">机器学习(七)</span>
</div>
</a>
<div class="card-content article-content">
<div class="summary block-with-text">
支持向量机
笔记摘要
SVM的基本模型是定义在特征空间上的间隔最大的线性分类器
线性可分支持向量机和线性支持向量机假设输入空间和特征空间的元素一一对应，并将输入空间中的输入映射为特征空间的特征向量；非线性支持向量机利用一个从输入空间到特征
</div>
<div class="publish-info">
<span class="publish-date">
<i class="far fa-clock fa-fw icon-date"></i>2021-10-30
</span>
<span class="publish-author">
<i class="fas fa-bookmark fa-fw icon-category"></i>
<a href="/categories/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/" class="post-category">
机器学习
</a>
</span>
</div>
</div>
<div class="card-action article-tags">
<a href="/tags/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/">
<span class="chip bg-color">机器学习</span>
</a>
<a href="/tags/%E6%9D%8E%E8%88%AA%E7%89%88/">
<span class="chip bg-color">李航版</span>
</a>
</div>
</div>
</div>
<div class="article col s12 m6 l4" data-aos="zoom-in">
<div class="card">
<a href="/posts/a18ea060.html">
<div class="card-image">
<img src="/medias/featureimages/20.jpg" class="responsive-img" alt="机器学习(六)">
<span class="card-title">机器学习(六)</span>
</div>
</a>
<div class="card-content article-content">
<div class="summary block-with-text">
逻辑斯谛回归与最大熵模型
logistic regression是统计学习中的经典分类方法。最大熵是概率模型学习的一个准则，推广到分类问题得到最大熵模型(maxium entropy model)
这两种模型都属于对数线性模型
逻辑斯谛
</div>
<div class="publish-info">
<span class="publish-date">
<i class="far fa-clock fa-fw icon-date"></i>2021-10-30
</span>
<span class="publish-author">
<i class="fas fa-bookmark fa-fw icon-category"></i>
<a href="/categories/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/" class="post-category">
机器学习
</a>
</span>
</div>
</div>
<div class="card-action article-tags">
<a href="/tags/%E6%9C%BA%E5%99%A8%E5%AD%A6%E4%B9%A0/">
<span class="chip bg-color">机器学习</span>
</a>
<a href="/tags/%E6%9D%8E%E8%88%AA%E7%89%88/">
<span class="chip bg-color">李航版</span>
</a>
</div>
</div>
</div>
<div class="article col s12 m6 l4" data-aos="zoom-in">
<div class="card">
<a href="/posts/3881e812.html">
<div class="card-image">
<img src="/medias/featureimages/5.jpg" class="responsive-img" alt="机器学习(五)">
<span class="card-title">机器学习(五)</span>
</div>
</a>
<div class="card-content article-content">
<div class="summary block-with-text">
决策树
笔记摘要
决策树可以认为是if-then规则的集合，也可以认为是定义在特征空间上的条件概率分布
根据损失函数最小化的原则建立决策树模型
决策树的路径或其对应的if-then规则集合具有一个重要性质：互斥且完备
决策树的学习算法包含
</div>
<div class="publish-info">
<span class="publish-date">
<i class="far fa-clock fa-fw icon-date"></i>2021-10-30
</span>
<span class="publish-author">