Daniel Tunkelang

Daniel Tunkelang Welcome to my CMU home page, which I update sporadically. You're better off looking at my LinkedIn profile or at my posts on Medium.

About Me

I'm a data science and engineering executive who has built and led some of the strongest teams in the software industry. I studied computer science and math at MIT and has a PhD in computer science from CMU. I was a founding employee and chief scientist of Endeca, a search pioneer that Oracle acquired for $1.1B. I then led a local search team at Google. After that, I was a director of data science and engineering at LinkedIn, and I established their query understanding team. I'm a recognized writer and speaker and am frequently invited to speak at academic and industry conferences, particularly in the areas of information retrieval, web science, and data science. I wrote the definitive textbook on faceted search (now a standard for ecommerce sites), established an annual symposium on human-computer interaction and information retrieval, and authored 24 US patents. My social media posts have attracted over two million page views. I advises and consults for companies that can benefit strategically from my expertise. My clients range from early-stage startups to "unicorn" technology companies like Etsy, Pinterest, and Flipkart. I help companies make decisions around algorithms, technology, product strategy, hiring, and organizational structure.

Conferences and Workshops

I am a co-founder and member of the steeting committee for the symposium on Human-Computer Interaction and Information Retrieval (HCIR), held annually since 2007. I've also organized industry tracks and workshops at SIGIR 2009, WSDM 2010, CIKM 2011, and RecSys 2012.

I've also presented at SDM 2002, CIKM 2004, SIGIR 2006, SIGIR 2007, ECIR 2008, SIGMOD 2009, ISSS 2009, RecSys 2011, RecSys 2012, CIKM 2012. SIGIR 2013, CIKM 2013, and WebSci 2014. I'll be keynoting the Workshop on Enterprise Intelligence at KDD 2016.

Finally, I have participated in a number of industry practitioner conferences in the areas of search, text analytics, big data, and the semantic web.

Graph Layout

Before discovering the joys of search, I worked on graph layout (aka graph drawing), which can generously be called information visualization.

Please feel free to read my dissertation on "A Numerical Optimization Approach to General Graph Drawing", and better yet download the source code.

The source code is available for both non-commercial and commercial use; I only ask that you acknowledge the use of the software and let me know that you are using it. Besides, you might actually get me to help you with it that way!

You might also be interested my earlier paper describing a practical approach to drawing undirected graphs.

Contact Information


Ben Tunkelang, 1929-2008, R.I.P. More information about the Tunkelang name here.