The eLog library was initially developed as a research prototype and later published for lifelogging researchers in 2010 to help them easily analyze heterogenous data and complex visualization. It has been kept growing with the progress of mobile computing environments and recently its UI part is released with GPL v3 license for wider usage. The eLog UI library is optimized for mobile environment and can get easily integrated with existing Web services.

Who We Are

The original work was proposed by Pil Ho and later extended the work with collaboration with 28 researchers around the world who contributed their lifelogs, collaborated for lifelog analysis and share research results to build up an open lifelogging platform for the public. Pil Ho has been keeping the development updating the library following up the progress in mobile computing.


  • Nov. 2014: Change the web page skin using bootstrap.
  • Nov. 2014: Published elog UI library as GPL v3.
  • Oct. 2014: Version up eLog library and documentation.


TLD back-porting for MS Visual Studio C++

In our case, we modified the original code to work with Mac environments using Xcode. This page lists up the list to port the new code for MS visual studio C++ (In short VC). The only thing from the code part to modify for VC is to install dirent.h header file (See Dirent API for Microsoft Visual Studio for installation instruction). The target VC version for test here is MS Visual Studio Express 2012 for Windows Desktop which you can get for free (after registration). For source files, first downloads OpenTLD for Windows from A C++ implementation of OpenTLD, configure and test to work with your VC and then overwrites source codes of OpenTLD (.cpp and .h), Config, Gui, Main and Settings from our Xcode version. Then it should work.