\begin{figure}[H]
\centering
\begin{ganttchart}[
    y unit title=0.6cm,
    y unit chart=0.6cm,
    vgrid={*1{draw=black!5, line width=.75pt}},
]{1}{20}
\gantttitle[]{2017}{7}
\gantttitle[]{2018}{13} \\
\gantttitlelist{46,...,52}{1}
\gantttitlelist{1,..., 13}{1} \\

\ganttgroup{Report}{1}{20} \\
\ganttbar{Planning report}{1}{2} \\
\ganttlinkedbar{Halftime report}{2}{10} \\
\ganttlinkedbar{Final report}{10}{19} \\
\ganttgroup{Literature Review}{1}{3} \\
\ganttbar[name=review]{Review Papers}{1}{2} \\
\ganttbar[name=usecases]{Identify Use Cases}{2}{3} \\

\ganttgroup{Iteration 1}{3}{8} \\
\ganttbar[name=1algo]{Define Algorithm}{3}{5} \\
\ganttbar[name=1implement]{Implementation}{6}{7} \\
\ganttbar[name=1eval]{Evaluation}{8}{8} \\
\ganttmilestone[name=1proto]{First Prototype}{8} \ganttnewline
\ganttgroup{Iteration 2}{9}{13} \\
\ganttbar[name=2algo]{Define Algorithm}{9}{10} \\
\ganttbar[name=2implement]{Implementation}{11}{12} \\
\ganttbar[name=2eval]{Evaluation}{13}{13} \\
\ganttmilestone[name=1proto]{Second Prototype}{13} \ganttnewline
\ganttgroup{Iteration 3}{14}{18} \\
\ganttbar[name=3algo]{Define Algorithm}{14}{15} \\
\ganttbar[name=3implement]{Implementation}{16}{17} \\
\ganttbar[name=3eval]{Evaluation}{18}{18} \\
\ganttmilestone[name=1proto]{Final Prototype}{18} \ganttnewline

% \ganttgroup{Algorithm}{2}{5} \\
% \ganttbar[name=rparsing]{Research SQL Parsing}{2}{3} \\
% \ganttbar[name=rdeps]{Research Dependency Tracking}{2}{3} \\
% \ganttbar[name=rusecase]{Research Use Cases}{2}{3} \\
% \ganttbar[name=devalg]{Develop Algorithm}{4}{5} \\
% \ganttmilestone[name=algdef]{Algorithm defined}{5} \ganttnewline
% \ganttlink[link mid=0.84]{rparsing}{devalg}
% \ganttlink[link mid=0.75]{rdeps}{devalg}
% \ganttlink[link mid=0.5]{rusecase}{devalg}
% \ganttlink{devalg}{algdef}

% \ganttgroup{Library}{6}{13} \\
% \ganttbar[name=iparsing]{Implement SQL Parsing}{6}{10} \\
% \ganttbar[name=ideps]{Implement Dependency Tracking}{6}{10} \\
% \ganttbar[name=integration]{Integration with existing platform}{10}{13} \\
% \ganttmilestone[name=readyeval]{Ready for evaluation}{13} \ganttnewline
% \ganttlink[link mid=0.75]{iparsing}{integration}
% \ganttlink[link mid=0.5]{ideps}{integration}
% \ganttlink{integration}{readyeval}

% \ganttgroup{Evaluation}{14}{17} \\
% \ganttbar[name=iworkloads]{Identify workloads}{14}{16} \\
% \ganttbar[name=setuptest]{Setup test environment}{14}{16} \\
% \ganttbar[name=runtest]{Run tests}{16}{17} \\
% \ganttlink[link mid=0.75]{iworkloads}{runtest}
% \ganttlink[link mid=0.5]{setuptest}{runtest}

\ganttgroup{Seminars}{1}{11} \\
\ganttbar{Seminar 1}{1}{1} \\
\ganttbar{Industry Collaboration}{10}{10} \\
\ganttbar{Seminar 2}{11}{11} \\

\ganttgroup{Presentation}{19}{20} \\
\ganttbar{Attend thesis presentation 1}{19}{19} \\
\ganttbar{Attend thesis presentation 2}{20}{20} \\
\ganttbar{Opposition}{20}{20} \\
\ganttbar{Oral presentation}{20}{20} \\

%\ganttbar{Task 1}{1}{2} \\
%\ganttlinkedbar{Task 2}{3}{7} \ganttnewline
%\ganttmilestone{Milestone}{7} \ganttnewline
%\ganttbar{Final Task}{8}{12}
%\ganttlink{elem2}{elem3}
%\ganttlink{elem3}{elem4}
\end{ganttchart}
\end{figure}