Visual display of semantic information

1. A method implemented by one or more computer processors, the method comprising:

generating, through a linguistic analysis, a semantic graph of a user utterance received by a conversational agent implementing an automated interactive natural language conversational dialog with a user, the conversational dialog modeled as paths through a set of decision trees;

identifying a plurality of candidate graph patterns based upon a current position of the conversational dialog in the set of decision trees;

comparing through use of one or more distance measuring metrics, the semantic graph of the user utterance with the plurality of candidate graph patterns to determine a given graph pattern from among the plurality of candidate graph patterns corresponding to the user utterance, the given graph pattern being a matching graph pattern and comprising a plurality of graph fragments, wherein each graph fragment occurs in the semantic graph of the user utterance or the matching graph pattern being subsumed by a subgraph of the semantic graph of the user utterance; and

displaying the utterance in an electronic user interface as a representation of the matching graph pattern, the displayed utterance facilitating improvement to the conversational agent.

2. A method as described in claim 1 , wherein the displaying includes displaying a control that is selectable to expand the representation to include another utterance that has been indicated as corresponding to the matching graph pattern through linguistic analysis.

3. A method as described in claim 2 , wherein the displaying of the utterance and the other utterance are ordered by specificity in the user interface.

4. A method as described in claim 1 , wherein the displaying includes displaying an indication that describes popularity of the matching graph pattern in a corpus of utterances that was a subject of the linguistic analysis.

5. A method as described in claim 1 , wherein the displaying includes displaying in the user interface a link that is selectable to navigate to a conversation that includes the utterance.

6. A method as described in claim 1 , wherein the displaying is performed to indicate which words in the utterance served as a basis to determine that the utterance corresponds to the matching graph pattern.

7. A method as described in claim 1 , wherein the displaying is performed to indicate which words in the utterance are not included in a lexicon that is utilized to perform the linguistic analysis.

8. A method as described in claim 7 , wherein at least one of the words is a misspelling.

9. A method as described in claim 1 , wherein the displaying is performed for a plurality of said utterances that correspond to a respective one of a plurality of said graph patterns of an intent.

10. A method as described in claim 1 , wherein the interactive natural language dialog is a textual chat between the user and the conversational agent.

11. A method as described in claim 1 , wherein comparing, through use of the one or more distance measuring metrics, the semantic graph of the user utterance with the plurality of candidate graph patterns includes:

assigning a matching distance to each successful match between the semantic graph of the user utterance and a respective one of the plurality of candidate graph patterns; and

selecting the matching graph pattern as a respective one of the plurality of candidate graph patterns with a smallest matching distance.

12. A method as described in claim 1 , wherein comparing, through use of the one or more distance measuring metrics, the semantic graph of the user utterance with the plurality of candidate graph patterns includes measuring a distance between the semantic graph of the user utterance and at least one of the plurality of candidate graph patterns.

13. A data processing system including one or more processors, the system comprising:

a conversational agent, executing on the one or more processors, the conversational agent configured to process a user utterance received by the conversational agent while implementing an automated interactive natural language conversational dialog between the conversational agent and a user, the conversational dialog modeled as paths through a set of decision trees and the conversational agent configured to:

generate, through a linguistic analysis, a semantic graph of the user utterance;

identify a plurality of candidate graph patterns based upon a current position of the conversational dialog in the set of decision trees;

compare, through use of one or more distance measuring metrics, the semantic graph of the user utterance with the plurality of candidate graph patterns to determine a given graph pattern from among the plurality of candidate graph patterns corresponding to the user utterance, the given graph pattern being a matching graph pattern and comprising a plurality of graph fragments, wherein each graph fragment occurs in the semantic graph of the user utterance or the matching graph pattern being subsumed by a subgraph of the semantic graph of the user utterance; and

a display configured to display the utterance in a user interface as a representation of the matching graph pattern, the displayed utterance facilitating improvement to the conversational agent.

14. A data processing system as described in claim 13 , wherein the display is further configured to display an indication that describes popularity of the matching graph pattern in a corpus of utterances that was a subject of the linguistic analysis.

15. A data processing system as described in claim 13 , wherein the display is further configured to display in the user interface a link that is selectable to navigate to a conversation that includes the utterance.

16. A data processing system as described in claim 13 , wherein the display is further configured to indicate which words in the utterance are not included in a lexicon that is utilized to perform the linguistic analysis.

17. A data processing system as described in claim 13 , wherein at least one of the words in the user utterance, received in connection with the dialog with a user, is a misspelling.