SPONGY (SPam ONtoloGY): Email Classification Using Two-Level Dynamic Ontology

Algorithm 3

Part of C4.5 classification result.

word_freq_http: > 0.829876

 word_freq_software: <= 0.084567

  word_freq_can: <= 0.990099

   word_freq_all: <= 2.325581

    word_freq_we: <= 1.470588: 1 (334.0/8.0)

    word_freq_we: > 1.470588

     word_freq_http: <= 1.515152: 0 (9.0/1.0)

     word_freq_http: > 1.515152: 1 (64.0)

   word_freq_all: > 2.325581

    word_freq_hi: <= 2.857143

    word_freq_have: <= 2.083334: 1 (17.0/1.0)

     word_freq_have: > 2.083334: 0 (2.0)

    word_freq_hi: > 2.857143: 0 (3.0)

  word_freq_can: > 0.990099

   word_freq_you: <= 2.439024