Noun Phrase Similarity Rules

Observation:

1. integer: [-+]?\d+
2. rational number: \d+[/]\d+
3. finite decimal representation: [-+]?[0-9]*[.][0-9]+([eE][-+]?[0-9]+)?
4. suffix hyphen: \w+[-]
5. prefix hyphen: [-]\w+
6. infix hyphen: \w+[-]\w+
7. [A-Z]{2,}
8. [A-Z]+\d+
9. [a-z]+\d+
10. [a-z]+[A-Z]+
11. [a-z]+[A-Z]+\d+
12. [A-Z]+[a-z]+\d+
13. [a-z]+\d+[A-Z]+
14. [a-z]+\d+[a-z]+\d+
15. [A-Z]+[a-z]+[A-Z]+\d+

Summary:

1. integer: [-+]?\d+
2. rational number: \d+[/]\d+
3. finite decimal representation: [-+]?[0-9]*[.][0-9]+([eE][-+]?[0-9]+)?
4. suffix hyphen: \w+[-]
5. prefix hyphen: [-]\w+
6. infix hyphen: \w+[-]\w+
7. [A-Z]{2,}
8. [A-Z][\w \\\/-]*\d
9. [a-z][\w \\\/-]*\d
10. [a-z0-9]+[A-Z]+
11. [a-zA-Z]+\d+[a-zA-Z]+

counter example of combining 3 and 4:  
p53 and TAFII40 and TAFII60