inno.trek

「Where innovation never stops.」

新拿来主义

A New Gloom of All-Takenism

和鲁迅先生八十年前谈论的“拿来主义”不同，这么多年过去了，时过境迁，我们早已习惯了这种“拿来”的方式。在这个意义下，鲁迅先生应该欣慰才是。商品外形设计、电影创意、甚至汽车尾灯的颜色，都被我们一一拿来，有的偷偷地放在自家的东西中，脸皮稍微厚点的甚至会借着观众的无知，自诩为“民族产业”、“自我创新”。时间久了，甚至连自己都被说服，相信某个灵感真的是自我孕育、厚积薄发的产物。推心而论，中国...

Posted by Jamin Chen on January 6, 2017

Process GIS Shapefile With Graph Tools

When processing GIS data, we sometimes need to analyze object movement on the map. For example, given some data records of bicycle riders lending and returning bikes (aka OD data), a shortest path ...

Posted by Jamin Chen on December 19, 2016

14 Must-Read Books For Behavior Data Scientists

In my Ph.D career, human behavior (especially mobility) analysis from telecommunication data is my studying theme. I learned a bunch of theories and techniques from other domains when they are of ...

Posted by Jamin Chen on October 15, 2015

A Tutorial On Topology Correction Of Shapefiles

Abstract: Here is some practical expeirience in cleansing the shapefile using GRASS, which is an open-source platform to do scientific analysis on spatial data. ERIS shapefile is a popular format ...

Posted by Jamin Chen on August 30, 2015

A Collection of R Pkgs Under Your Pillow

R在统计分析、机器学习、以及绘图上有着丰富的功能，基础安装包里的函数能够满足基本的需求，如果需要更多样化、复杂的数据处理，可以试着使用以下工具: 数据清洗转换 (Data wangling) DescTools (Tools for describing data and descriptive statistics) dplyr (面向data.frame，plyr的下次迭代...

Posted by Jamin Chen on May 20, 2015

Top Tricks to Make Your Zotero More Powerful

Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share your research sources. It support a wide range of documentation types from papers to presentations, from web pages ...

Posted by Jamin Chen on January 8, 2015

Understanding Urban Lives with Open Data

Data mining, one of the hottest topics on the media in past years, exhibits a new way to help companies, organizations, and even ordinary people to make plans and decisions in near future. We are c...

Posted by Jamin Chen on October 23, 2014

Inspiring GIS Projects in R

R is a free software for statistical computing and graphics (as declaimed in its project vision). But in my view, its horizon is beyond that thanking to its flexible extension infrastructure. As a ...

Posted by Jamin Chen on October 16, 2014