On-line bin packing : a restricted survey

In the classical bin packing problem, one is asked to pack items of various sizes into the minimum number of equal-sized bins. In the on-line version of this problem, the packer is given the items one by one and must immediately and irrevocably assign every item to its bin, without knowing the future items. Beginning with the first results in the early 1970's, we survey - from the worst case point of view - the approximation results obtained for on-line bin packing, higher dimensional versions of the problem, lower bourds on worst case ratios and related results.