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Diffstat (limited to 'report2')
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diff --git a/report2/paper.md b/report2/paper.md index 75989a1..7099df8 100755 --- a/report2/paper.md +++ b/report2/paper.md @@ -108,6 +108,24 @@ We find that for the query and gallery set clustering does not seem to improve i # Suggested Improvement +## Comment on Mahalnobis Distance as a metric + +We were not able to achieve significant improvements using mahalanobis for +original distance ranking compared to square euclidiaen metrics. Results can +be observed using the `-m|--mahalanobis` when running evalution with the +repository complimenting this paper. + +COMMENT ON VARIANCE AND MAHALANOBIS RESULTS + +\begin{figure} +\begin{center} +\includegraphics[width=12em]{fig/cdist.pdf} +\includegraphics[width=12em]{fig/train_subspace.pdf} +\caption{Left:first two features of gallery(o) and query(x) data for 3 labels; Right:First two features of train data for three labels} +\label{fig:subspace} +\end{center} +\end{figure} + ## k-reciprocal Reranking Formulation The approach addressed to improve the identification performance is based on @@ -180,7 +198,7 @@ has improved for the fifth query. The mAP improves from 47% to 61.7%. Figure \ref{fig:compare} shows a comparison between $top k$ identification accuracies obtained with the two methods. It is noticeable that the k-reciprocal reranking method significantly -improves the results even for top1, boosting identification accuracy from 47% to 56.5%. +improves the results even for $top1$, boosting identification accuracy from 47% to 56.5%. The difference between the $top k$ accuracies of the two methods gets smaller as we increase k. \begin{figure} @@ -191,11 +209,15 @@ The difference between the $top k$ accuracies of the two methods gets smaller as \end{center} \end{figure} +It is possible to verify that the optimization of $k_{1_{opt}}$, $k_{2_{opt}}$ and $\lambda$ +has been successful. Figures \ref{fig:pqvals} and \ref{fig:lambda} show that the optimal values obtained from +training are close to the ones for the local maximum of gallery and query. + \begin{figure} \begin{center} \includegraphics[width=12em]{fig/pqvals.pdf} \includegraphics[width=12em]{fig/trainpqvals.pdf} -\caption{Identification accuracy varying K1 and K2 (gallery-query left, train right)} +\caption{Identification accuracy varying K1 and K2 (gallery-query left, train right) KL=0.3} \label{fig:pqvals} \end{center} \end{figure} @@ -204,55 +226,15 @@ The difference between the $top k$ accuracies of the two methods gets smaller as \begin{center} \includegraphics[width=12em]{fig/lambda_acc.pdf} \includegraphics[width=12em]{fig/lambda_acc_tr.pdf} -\caption{Top 1 Identification Accuracy with Rerank varying lambda(gallery-query left, train right)} +\caption{Top 1 Identification Accuracy with Rerank varying lambda(gallery-query left, train right) K1=9, K2=3} \label{fig:lambda} \end{center} \end{figure} -# Comment on Mahalnobis Distance as a metric - -We were not able to achieve significant improvements using mahalanobis for -original distance ranking compared to square euclidiaen metrics. Results can -be observed using the `-m|--mahalanobis` when running evalution with the -repository complimenting this paper. - -COMMENT ON VARIANCE AND MAHALANOBIS RESULTS - # Conclusion # References # Appendix -\begin{figure} -\begin{center} -\includegraphics[width=17em]{fig/cdist.pdf} -\caption{First two features of gallery(o) and query(x) feature data} -\label{fig:subspace} -\end{center} -\end{figure} - -\begin{figure} -\begin{center} -\includegraphics[width=17em]{fig/clusteracc.pdf} -\caption{Top k identification accuracy for cluster count} -\label{fig:clustk} -\end{center} -\end{figure} - -\begin{figure} -\begin{center} -\includegraphics[width=17em]{fig/jaccard.pdf} -\caption{Explained Jaccard} -\label{fig:jaccard} -\end{center} -\end{figure} - -\begin{figure} -\begin{center} -\includegraphics[width=17em]{fig/mahalanobis.pdf} -\caption{Explained Mahalanobis} -\label{fig:mahalanobis} -\end{center} -\end{figure} |