pgr_problem.tex

\section{Problem Statement}

About intermediate result sharing problem, the detailed technical problems includes:
\begin{itemize}
\item Address rule for intermediate result. In the language of NDN, how to name intermediate result and broadcast such name knowledge to all servers need the data

\item Intermediate result selection, as how, for requester, to find the IRs combination, which could best satisfy its requirement, considering both two dimensions as original dataset the intermediate results come from and computation steps the intermediate results has experienced.

\item Storage management for scalability, as how to garbage collect the obsolete IRs to leave space for new coming IRs.   
\end{itemize}