Figure 2.

ALICE overview. In the Inner Search (IS) phase, ALICE searches for a pair of parentheses and identifies an inner. Once the inner is identified, its left-chunk is also determined. Then, its outer is extracted from the left-chunk in the Outer Extraction (OE) phase. Finally, in the Validity Judgment (VJ) phase, the validity of the set of the inner and its outer as an abbreviation-expansion pair is judged. If an inner is an abbreviation, the outer is its expansion. Inversely, if an inner is an expansion, the outer is its abbreviation.