Table 3.

Pseudocode with REGEX

FOR each report:

Initialize REGEX: = 0

Initialize (REP_POS, REP_NEG): = (0,0)

FOR each of BODY and IMPRESSION sections:

Initialize (SEC_POS, SEC_NEG): = (0,0)

FOR each sentence:

Search for base KEYWORD

FOR each KEYWORD:

Search for EXCLUSION surrounding KEYWORD

IF at least one KEYWORD = 1 AND EXCLUSION = 1:

(SEN_POS, SEN_NEG) = (1,1)

IF at least one KEYWORD = TRUE AND EXCLUSION = 0:

(SEN_POS, SEN_NEG) = (1,0)

FOR all sentences in section:

IF at least one (SEN_POS, SEN_NEG) = (1,1):

(SEC_POS, SEC_NEG) = (1,1)

IF at least one (SEN_POS, SENE_NEG) = (1,0):

(SEC_POS, SEC_NEG) = (1,0)

(REP_POS, REP_NEG):= (REP_POS, REP_NEG) of IMPRESSION

IF (SEC_POS, SEC_NEG) of IMPRESSION = (0,0):

(REP_POS, REP_NEG):= (SEC_POS, SEC_NEG) of BODY

IF (REP_POS, REP_NEG) = (1,0)

REGEX: = 1