Abstract: Disclosed herein is a method for automatically filtering a corpus of documents containing textual and non-textual information of a natural language. According to the method, through a first dividing step (101), the document corpus is divided into appropriate portions. At a following determining step (105), for each portion of the document corpus, there is determined a regularity value (VR) measuring the conformity of the portion with respect to character sequences probabilities predetermined for the language considered. At a comparing step (107), each regularity value (VR) is then compared with a threshold value (VT) to decide whether the conformity is sufficient. Finally, at a rejecting step (111), any portion of the document corpus whose conformity is not sufficient is rejected and removed from the corpus. An apparatus for carrying out such a method is also disclosed.

Abstract: A method, system and article of manufacture for estimating the performance of a computer system are provided. Initially, a business pattern representative of the expected usage of the computer system is identified. Then, for each parameter associated with each predefined script, which corresponds to the identified business pattern, a value is established. The computer system hardware characteristics and performance objectives are identified next. The performance estimate is then calculated utilizing the established parameter values, identified hardware characteristics and performance objectives. To calculate the performance estimate, the script measurements data is read from a table of previously measured values, and a weighted average number of page visits per user, a weighted average visit rate and a weighted average service time for each target device in the computer system are calculated.