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第341章 汗流浃背了吧纪天和(1 / 2)

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“做不出来。”娄景辉无奈笑道,“我的直觉是个幻觉,新的数学模型不存在!”

“我也是这个感觉。”纪天和点点头,“每条路都走不通。”

宋河皱眉,“给我看你们的推导过程。”

三个人动作一致,从电脑包里取出电脑,开机。

随后,三台电脑并列摆在桌上,各自显示一份推导过程。

宋河仔细看了看两位高徒的推导,实力都非常强劲,走了十多条不同的路线,逻辑缜密思路清晰,却无一例外走入死胡同。

“你们确定所有的路都试过了吗?”宋河问。

“确定!”两个高徒异口同声。

“那我这些是什么?”

宋河一边说着,拨动自己的电脑鼠标,快速往下滑动。

一种接一种推导出现,两位高徒凑过来紧盯老师的电脑,前前后后竟然冒出二十多种推导思路,有几条路线是两人完全没尝试过的!

纪天和目光惊奇,认真思索起陌生的推导思路,老师说的没错,可能性确实没有穷尽!

娄景辉震了,向来话痨的他竟有一刹那的词穷!

在数学领域他十分自负,原以为宋河专长是生物,数学技艺应该远不及他。

但此刻,望着屏幕上角度刁钻的推导,娄景辉突然发觉,宋河老师的数学造诣超乎想象的强!一时间竟看不出深浅!

娄景辉的手突然震颤,像帕金森发作!

“你怎么了?”宋河吓了一跳。

“发病了老师,您的推导把我的脑病诱发了,停不下来!”娄景辉眼皮狂眨,手抖得更厉害,面色泛上一股潮红,整个人像是快自爆了。

“景辉你不能嘎啊,那咱们开工!”宋河双手放上键盘,“来的路上我想到一种新思路,有戏,我写出来咱们一起推!”

话音未落,他双手狂敲,将大量推导过程罗列在屏幕上!

娄景辉的手抖幅度明显小了,两眼死盯着屏幕,脑子迅速进入高速运转状态。他整个人犹如一口烧热的高压锅,需要靠思考来不断泄气减压。

纪天和则在自己电脑上开了计算软件,吃力地不断验算推导过程,追赶老师进度。

“我们从卡尔曼滤波的基础推导入手。”宋河讲述,“前几组数据,我们设为状态转移矩阵,后几组数据则是控制输入模型……”

“老师,您这一步不对啊,按卡尔曼滤波,噪音是服从零均值的高斯分布!”娄景辉忽然伸手在屏幕上一戳。

“死板!咱们是药物分子分析,不是无规律的外界扰动!”宋河批评。

娄景辉的手抖瞬间消失,老师一句话把他大脑转速干到峰值了,病魔被死死压制。

但病魔只被压制了短短几秒,手抖恢复。

“懂了懂了!”娄景辉兴奋,“老师您的思路是对的!是我太僵化了,下一步把系统真实状态空间映射成观测空间,构建一个初始的协方差矩阵,然后再进行数据嵌套!”

宋河惊讶,敲键盘的手不禁微微一滞,娄景辉的反应速度太快了,竟然瞬间跟上了自己的思路,甚至反超了一点点!

不愧是高材生,恐怖如斯!脑子竟然和自己吃了心算胶囊一个功率!

不行,不能在学生面前露怯!

宋河借着低头吃汤圆,偷偷往嘴里塞了两粒心算胶囊。

讨论白热化起来,餐厅角落充斥着三个人你追我赶的辩论声:

“不确定度会随着迭代的进行增大,老师你必须消除估计状态的错误方差!”

“不,到这一步就不能用卡尔曼增益了,必须另辟蹊径,咱们试试直接跳到最优估计的协方差矩阵!”

“宋老师,我感觉这样行不通,协方差矩阵的符号无法处理药物分子的增强减弱,可不可以试试构建似然函数?”

“格拉姆-施密特正交,先试试这个,毕竟药物分子的后几项数据都是线性无关输入向量,但用什么定义呢?二范数吗?”

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