In order to establish a reliable cross-validation method, you must have a good understanding of the data and the challenges you face. I will also check and ensure that the validation set has a similar distribution to the training set and the test set, and try my best to ensure that the final model improves in both local validation and ranking.
《神奇宝贝》（ポケモン）是由汤山邦彦执导的电视动画系列，改编自口袋妖怪系列游戏。
动画第二季播出在即，从4月开始到7月，每周三17点与日本同步更新小剧场。
研究人员、工程师和梦想家的每次突破都为我们带来更美好的未来。思维无界限。《尖端科学之旅》将带领观众见证最前沿研究领域的每一项重大发现。在医学、机器人、科技、自然、太空和绿色科技等领域，每一集都将讲述科学家、探险家或开拓者的故事，他们引领我们进入伟大的科学之年。该系列将带来前所未有的、最令人难以置信的突破，这些突破将塑造我们未来生活的世界。
JIT theory holds that the most precious wealth of an enterprise is not the machine building or the product, but the employees in the production line. Employees are the source of wisdom for enterprise development. Only when front-line employees meet the requirements in their operations can the system truly realize its functions. Only when each employee exerts his creative ability can the whole system acquire real dynamic adaptability and self-improvement ability. If employees do not understand JIT production, do not actively participate in production activities, do not play their own independent spirit, and do not participate in enterprise improvement activities, the problems in production will not be exposed and solved. The secret of the success of JIT production mode lies in "full participation". One of its important characteristics is endless improvement. To this end, enterprises have invested a lot of energy in various aspects of training to improve the quality of employees. Teamwork, multi-ability in one post and multi-machine in one person have all become necessary skills for frontline employees. JIT production mode realizes the overall flexibility of the system through the operation of the organization and the high ability of employees.
看着刘蝉儿哭得红红的眼睛，老太太心疼极了，恨不得就此把孙女领回家算了。
52赫兹，代表着一种没有同类能接收的频率，就是“孤单的人，我爱你”。孤单，正是所有爱情故事的开始……在拥挤的都市中，围绕着各种孤单的人群，没有勇气尝试爱情滋味的年轻男女、为经济压力所苦的爱情长跑恋人、受世俗羁绊的中年单身人士、相爱却不被认同的同性情侣…《52赫兹我爱你》描写在全世界都为爱情庆祝的这一天，终于轮到渴望爱情的他/她们担当主角，谱写出浪漫甜蜜的恋曲。
北宋年间，宋辽征战，杨家将奉旨统领宋军保家卫国。杨六郎、柴郡主的独子杨宗保为得宝物降龙木前去穆柯寨，与代父出征的穆桂英狭路相逢。桂英对宗保一见倾心，她斗智斗勇，故意百般刁难，使宗保大伤脑筋。但几个回合下来，机智勇敢、纯真善良、敢爱敢恨的穆桂英渐渐地走进了宗保的内心，两人历经千难万险，终于成婚。边疆战事吃紧，六郎被陷敌营，多亏穆桂英用计相救方转危为安。六郎决定让已怀有身孕的穆桂英挂帅统领三军，众将领却不以为然，此时佘太君从孙媳身上看到了自己年轻时的影子，她力排众议支持六郎的决定。大帐内佘太君让穆桂英跟宋军将领们展开较量，桂英被逼应战，并且战胜了众将，掌管了元帅大印。穆桂英率宋军大破天门阵，战胜了辽军，为两国百姓赢得了和平。
推销员马奋斗在经历人生挫折后突然发现他的许多愿望一一开始实现，到头来却发现他原来最希望拥有的一直在他面前。
若娴、画娘知画、绣娘知锦，以及子馨的未婚夫王大智、爱慕琴娘的纨绔子弟陈家铭等一干年轻人。知锦、知画姐妹都爱上了亦鸿，迫使知画为了成全亦鸿和妹妹而远走他乡；若娴和戴思远因琴结缘却不能相守，陈亦鸿更是丝毫不放弃对若娴的追求；子馨与王大智这对欢喜冤家的感情经历了一次又一次磨练，最终在战争爆发的危急时刻子馨执意嫁给了大智。众人一起经历了清政府的覆灭、维新思想的传播、打击湖匪守卫木渎、救护革命军伤员、直至抗日战争爆发，木渎众人明白这是一次民族性的战争，他们放下了各人之间的矛盾、情仇，毅然投身到抗日战争的洪流之中。
他没想到伏击他的人竟是刘邦，他看不起的刘老三。
On April 18, the launching ceremony of the second season of "Charming China City" and the inaugural meeting of Charming China City-City Alliance jointly sponsored by CCTV Financial Channel, Shiyan Municipal People's Government and Pacific Century Tourism were held in Shiyan City, Hubei Province. Forty-six cities took part in the grand ceremony here. Representatives of the competing cities in the first season of "Charming China City", representatives of the registered cities in the second season of "Charming China City" and representatives of specially invited cities gathered together. CCTV's financial channel and the program's main creative team, representatives of expert judges, representatives of the tourism industry and the investment community attended the event.
伊一、亚丽、陈欢三位浙江广电集团新生代“台柱级”主持人领衔带队，与30位浙江广电集团人气主持人一起组成了三大战队，在为期六周的时间里，秀歌舞才艺、秀知识储备、秀应变智慧，挑战高难度主题，赢得公益基金，帮助普通人达成他们的愿望。
被人围了里三层、外三层，好可怕。
Rules consist of matching conditions and processing actions.
《旋转吧，假期》是中央电视台综艺频道全新打造的一档情景式喜剧综艺秀。将音乐、喜剧、摇滚多重元素融为一体，形式新颖、欢快且更具创意。五一特别节目《旋转吧，假期》，为奋战在抗疫一线以及其它行业坚守在工作岗位上的最美劳动者们送去欢笑与温暖，节目致敬“最美逆行者”。
萧何是何等聪明之人，当心中的那一丝迷惘和疏忽一闪而过之后，就豁然开朗。
2017-02-01 10:35:34
阿呆和阿瓜是一对非常要好的朋友，他们觉得凭借自己的力量可以修理一切，他们的生活也充满了欢乐：把需要接线的割草机改成太阳能无线自动型、为了抓老鼠在花园里到处打洞、把滚筒洗衣机改造成斗牛机、为电动小火车制作风力发电机、为了轻松搬运图书把地毯变成自动传送带······在每一次的改造中，结果并非总是成功，但是呆瓜兄弟两个找到了自己动手的无限乐趣，也收获了无限自信和挑战的勇气。
