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<Paper uid="C90-3024">
  <Title>A Computational Model for Arguments Understanding</Title>
  <Section position="3" start_page="136" end_page="136" type="evalu">
    <SectionTitle>
5. Implementation and Example
</SectionTitle>
    <Paragraph position="0"> We have realized an implementation in Prolog. It is able to analyze a dialogue, to compute argumentative orientations and to learn new conceptual relations when necessary. The syntactic/sernantic analysis is not implemented.</Paragraph>
    <Paragraph position="1"> Dialogues are represented with features structures. The discourse constraints are represented as a set of rules in Prolog describing the process of any new utterance. For each operator, a set el linguistic constraints is listed. It is a list of conditions to be satisfied to complete the processing of the current utterance.</Paragraph>
    <Paragraph position="2"> Here is a trace of the automatic processing of the second example given in the introduction: U1 string: &amp;quot;Mow about asking your sister to co,r4~ too? (al) &amp;quot; content: ask sister to come(b) mode: suggestion orientation: ask sister to come(b) U2 string: &amp;quot;The kids will love to see their cousins. (bl)&amp;quot; content: kids love to see cousins mode: affirmation argument : arg~n~ent (for, kids love to see cousins, ask sister to come(b)) orientation: ask sister to come(b) U3 striLng: &amp;quot;But it is such a long trip.</Paragraph>
    <Paragraph position="4"> operator: but content: long trip mode: affirmation argument s : ai:fp/ment (against, 1 ong t rip, ask sister to come(b)) orientation: opposite (ask slster to come(b)) U4 string: &amp;quot;Besides you know how I feel about my brother-in-law. (b3) &amp;quot; operator: besides content : how feel about brother in law(b,bad %% at the beginning~the second argument is %% non hlstanZlated mode: affirmation argument s : argt~ment ( for, how feel about brother in law(b,bad) opposite (ask sister to come(b))) orientation: opposite (ask sister to come(b)) %% the final orientation of B% turn is given %% by the orientation of the last uttersnce If we replace (b3) by (b3'): B: Besides yo~1 know :I: fee.\], good abo~t ~Ly brother-in--\] aw. (b3 ' ) the system will finds a coherent interpretation, by making the following hypothese: Asserting the NEW ARGI/MENT: hyp argt~ent (against, hot~ feel about brother in law (b, good) , ask sister to come(b))</Paragraph>
  </Section>
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