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Normalizing a measure of the level of current interest of an item accessible via a network

  • US 6,721,744 B1
  • Filed: 09/07/2000
  • Issued: 04/13/2004
  • Est. Priority Date: 01/28/2000
  • Status: Expired due to Term
First Claim
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1. A method for normalizing a measure of the level of current interest of an item that is based on indications of interest received from one or more users of a network via which the item is accessible, comprising:

  • determining for each successive indication of interest received with respect to the item an intensity value;

    calculating at the time each successive indication of interest with respect to the item is received an intensity rank based at least in part on the intensity value of the received indication; and

    multiplying the calculated intensity rank by a normalization factor to determine a normalized intensity rank;

    wherein the normalization factor includes a low frequency enhancement factor that enhances, relative to the intensity rank for items for which indications of current interest are received more frequently, the intensity rank for an item for which indications of current interest are received less frequently; and

    wherein the low frequently enhancement factor is the difference between the time of the received indication and the time of the last-received indication.

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