  A jet algorithm based on the k-means clustering procedure is proposed which
can be used for the invariant-mass reconstruction of heavy states decaying to
hadronic jets. The proposed algorithm was tested by reconstructing E+ E- to
ttbar to 6 jets and E+ E- to W+W- to 4 jets processes at \sqrt{s}=500 GeV using
a Monte Carlo simulation. It was shown that the algorithm has a reconstruction
efficiency similar to traditional jet-finding algorithms, and leads to 25% and
40% reduction of reconstruction width for top quarks and W bosons,
respectively, compared to the kT (Durham) algorithm. In addition, it is
expected that the peak positions measured with the new algorithm have smaller
systematical uncertainty.
