Department of Statistics

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I am a faculty member of the Department of Statistics and the Institute of Bioinformatics (IOB) at University of Georgia. My research interests include statistical phylogenetics, modeling biological data, coalescent theory, cancer evolution, survival analysis, and parallel computing. Evolutionary processes is the fundamental process for understanding inheritable changes over time. "Nothing in Biology Makes Sense Except in the Light of Evolution" - - by Theodosius Dobzhansky. In fact, many non-biology processes, such as history of languages, can be viewed as evolutionary process.  Evolutionary process is often modeled as a tree-like branching process - a phylogenetic tree. Phylogenetic trees are thus the fundamental tools for studies in evolutionary biology, infectious diseases, cancer evolution, etc. We have developed several statistical tools for estimating phylogenetic trees from phylogenomic data.

 


Office: 240 Statistics Building, 101 CEDAR STREET, Athens, GA 30606. Voice: 706-542-3309; Fax: 706-542-3391; EMAIL: lliu@uga.edu

庆历四年春,滕子京谪守巴陵郡。越明年,政通人和,百废具兴,乃重修岳阳楼,增其旧制,刻唐贤今人诗赋于其上,属予作文以记之。予观夫巴陵胜状,在洞庭一湖。衔远山,吞长江,浩浩汤汤,横无际涯;朝晖夕阴,气象万千;此则岳阳楼之大观也,前人之述备矣。然则北通巫峡,南极潇湘,迁客骚人,多会于此,览物之情,得无异乎?若夫霪雨霏霏,连月不开;阴风怒号,浊浪排空;日星隐耀,山岳潜形;商旅不行,樯倾楫摧;薄暮冥冥,虎啸猿啼;登斯楼也,则有去国怀乡,忧谗畏讥,满目萧然,感极而悲者矣!

至若春和景明,波澜不惊,上下天光,一碧万顷;沙鸥翔集,锦鳞游泳,岸芷汀兰,郁郁青青。而或长烟一空,皓月千里,浮光跃金,静影沈璧,渔歌互答,此乐何极!登斯楼也,则有心旷神怡,宠辱偕忘、把酒临风,其喜洋洋者矣!

嗟夫!予尝求古仁人之心,或异二者之为,何哉?不以物喜,不以己悲,居庙堂之高,则忧其民;处江湖之远,则忧其君。是进亦忧,退亦忧;然则何时而乐耶?其必曰:“先天下之忧而忧,后天下之乐而乐矣!”噫!微斯人,吾谁与归!时六年九月十五日。 -- 范仲淹(宋)