Generate Derivational Variants - Specifying Output Categories

• Short Description: Generate derivational variants, specifying the Bit OR'd output categories.
  
  
• Full Description:

  The derivational operations can be qualified to restrict output category by a integer. The values of this integer for syntactic category are the OR'ing (or addition) of the following:

  Category	Value
  adj	1
  adv	2
  aux	4
  compl	8
  conj	16
  det	32
  modal	64
  noun	128
  prep	256
  pron	512
  verb	1024

  In some domains, nouns are the vast majority of terms in the vocabulary. Furthermore, for terms which can be interpreted as either nouns or as other categories, the noun sense is much more likely. Under these circumstances, one might want to restrict one's output to nouns.

  As the getDerivation flow, the results are sorted by category, length, and case insensitive alphabetical order.
  
  

• Difference: Refer to derivations.
  
  
• Features:
  1. Fact: Find all derivational variants from derivation table.
  2. Rules: Find all derivational variants from morphology rules.
  3. Assign category and inflection for all outputs.
  4. Filter outputs according to the restriction category.
  5. Filter outputs according to the restriction flag (-kd).
  6. Display outputs by the frequency of categories.
  
  
  
• Symbol: dc
  
  
• Examples:

  
  shell> lvg -f:dc~128 -m
  legal
  legal|legalism|128|1|d|1|FACT|legal|1|E0037147|legalism|128|E0037148|S|O|None|
  legal|legality|128|1|d|1|FACT|legal|1|E0037147|legality|128|E0037152|S|O|None|
  
  chronology
  chronology|geochronology|128|1|d|1|FACT|chronology|128|E0016955|geochronology|128|E0225433|P|O|geo|
  chronology|chronologer|128|1|d|1|FACT|chronology|128|E0016955|chronologer|128|E0567648|S|O|None|
  chronology|chronologist|128|1|d|1|FACT|chronology|128|E0016955|chronologist|128|E0071500|S|O|None|
  
  help
  help|helper|128|1|d|1|FACT|help|128|E0031061|helper|128|E0031062|S|O|None|
  help|helper|128|1|d|1|FACT|help|1024|E0031060|helper|128|E0031062|S|O|None|
  help|helping|128|1|d|1|FACT|help|1024|E0031060|helping|128|E0219271|S|O|None|
  help|self-help|128|1|d|1|FACT|help|128|E0031061|self-help|128|E0055088|P|O|self-|
  help|help|128|1|d|1|FACT|help|1024|E0031060|help|128|E0031061|Z|O|None|
  
  kind
  kind|kindness|128|1|d|1|FACT|kind|1|E0036524|kindness|128|E0036531|S|O|None|
  kind|kind|128|1|d|1|FACT|kind|1|E0036524|kind|128|E0036525|Z|O|None|
  

  More examples
  
  

• Implementation Logic:
  1. Utilize functions in Java class of ToDerivation (sorted results)
  2. Filter out results by output categories.
  
  
• Source Code: ToDerivationByCategory.java
  
  
• Hierarchy: Object -> Transformation -> ToDerivationByCategory