Revisit L&W 1967. Reliability of Narrative Analysis (Labov & Waletzky, 1967) Natural Language and Dialogue Systems Lab NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ What is a narrative? Referential and evaluative A sequence of clauses in the correct temporal order Contains at least one temporal juncture I interpret this to mean some ‘causality’ NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ A complete narrative contains: Orientation Complication Evaluation Resolution Coda NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ From “The Security Breach” by Kim Wolterman Action Evaluation NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB Orientation Coda UC SANTA CRUZ Aim: Can people do this reliably, with high agreement? Is the model Good? Robust? Comprehensive? Are there categories of stuff in narrative that this model is missing? Is it possible to reliably distinguish between the categories that are there? Reliability: need for both theoretical and empirical, scientific reasons My proposal: forget about ‘complication’, ‘temporal junction’ and ‘displacement sets’ Focus on whether we can distinguish orientation, evaluation, actions and coda. NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ Aim: Can people do this reliably, with high agreement? Machine Learning: Categories clearly separated Need some level of agreement at least about 70% (Kappa of .7) Expert or Xbar Coder Action Action 33 Evaluation Orientation Coda NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB Evaluation Orientation Coda 55 34 22 UC SANTA CRUZ Aim: Can people do this reliably, with high agreement? Machine Learning: Categories clearly separated Need agreement What would you do if this is what you got? Expert or Xbar Coder Action Action 33 Evaluation Evaluation Orientation Coda 55 4 22 Orientation Coda NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB 34 22 22 UC SANTA CRUZ How Kappa is calculated & methods for Define a codebook, annotation manual Collapse categories that are confusable NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ Aim: Can people do this reliably, with high agreement? My proposal: forget about ‘complication’, ‘temporal junction’ and ‘displacement sets’ Focus on whether we can distinguish orientation, evaluation, actions and coda. NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ Stephanie Lukin and Georg Albrecht Natural Language and Dialogue Systems Lab NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ From “The Security Breach” by Kim Wolterman Action Evaluation NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB Orientation Coda UC SANTA CRUZ From “Canyon Living: Riding Horses” by Jennifer Doherty Brown Action Evaluation Orientation Coda NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ Action or Orientation? “We started by gathering the horses [which took a little under half an hour] since Zip did not want to be corralled and saddled” “Once the horses, saddled and bridled, loaded up in the trailer, we were off to the pasture east to get some strays before moving cattle closer to the house [(a mere five mile ride)].” “[By the end of several hours], I had only a sore knee to keep me company (and we did grill steaks and fresh zucchini for lunch).” NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ Evaluation or Orientation? “As I intimated in the last post, my trip home from Canada was rather exciting.” “Canada international travel is somewhat interesting as you have to clear customs there before heading into the United States.” “We figured since we were arriving in St. Louis before the guys” NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ Action or Evaluation? “I found an old favorite bay horse named Tivio to be my perfect companion.” Evaluation or Coda? “I'd say more riding is in my future. I loved the time out in nature and with my husband.” NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ Action or Evaluation? “First clue that something was awry is that the gal told Ted he had checked one bag, [which he had not].” “I am assuming that was because [we used his credit card, so she just attached it to his ticket].” Evaluation or Coda? “But alas that was not all the AA agent had screwed up.” NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ Some differences Action or Evaluation? (section contained in []) “First clue that something was awry is that the gal told Ted he had checked one bag, [which he had not].” “I am assuming that was because [we used his credit card, so she just attached it to his ticket].” Evaluation or Coda? “But alas that was not all the AA agent had screwed up.” NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ Towards annotating narrative structures reliably Natural Language and Dialogue Systems Lab NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ The Narrative Clause The "basic unit" of narrative A clause that is temporally ordered Contains a verb, the "narrative head” WHAT KIND OF VERB? STATIVE VS. ACTIVE? MENTAL STATE VERBS Has an "unordered displacement set” Labov 1997 defines this much better NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ The Narrative Clause NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ Livia Polanyi NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ Orientation Formally: The group of free clauses that precede the first narrative clause. The beginning part of a narrative that "sets the scene" to help orient the audience. Used to describe who/where/when/why. Ex: "One afternoon, after finishing lunch, my friends and I were walking to our car when suddenly...". Thorne: Orientation (which orients the listener with respect to person, place, time, and situation) is formally defined as preceding the first action clause (p. 27), as in “It was a dark and stormy night, or “Last Friday,” or “remember that guy from back home, well last night when we were at the restaurant, he …” (p. 27). However, orientations can be scattered throughout the story. Orientation is not a crucial feature of a story. Temporal action and evaluation are crucial aspects. NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ Evaluation SEEMS LIKE IT COULD OCCUR ANYWHERE Highlights the significance of the result. May include the story's "moral" or the narrator's perspective. SUBJECTIVITY? SENTIMENT? Thorne: 5. Evaluation is crucial to a story because it tells the attitude of the teller, or the point of the story; stories are told for a reason (p. 28), to “establish some point of personal interest” (p. 29). Evaluations can be very brief. For example, at the end of a near-death story, the teller says “You’d have been dead.” This tells the listener that the experience was really dangerous; anyone could have died. (p. 30). Or the teller might say “It was cool man, I survived”, which conveys a very different attitude on the part of the teller. “The evaluation .. reveals the attitude of the narrator toward the story by emphasizing the relative importance of some narrative units relative to others.” (p. 32) the evaluation might serve the function of self-aggrandizement (as in “You’d have been dead, I survived, man!” (p. 34) At some point L & W say that evaluations suspend the action (sort of like stepping out of the action to express a point of view about the meaning of the action or experience to the teller or to other characters in the story). 6. Stories vary in the degree to which evaluations are stated directly as the teller’s attitude or point of view ; “external” evaluations state the teller’s point of view directly (I thought it sucked”. Some evaluations are “internal” in that they are expressed through 3 rd parties in the story (“he said it sucked”). evaluations are stated directly or more internalized. (pp. 34-35). page 35 shows a chart of evaluations that vary from internal to external. NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ CODA • • Occasionally present after the Resolution. Returns the narrative perspective to the present. o o • o Deixis: Shifting narrative perspective to present and referencing the story as occurring in the past. Reference to the present state of some aspect of narrative. Reference the current effect of the narrative. All codas are separated from the Resolution by a temporal junction. NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ Some other NLP work doing narrative annotation NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ Extra slides Natural Language and Dialogue Systems Lab NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ This one claims that different types of stories have different event types NATURAL LANGUAGE AND DIALOGUE SYSTEMS LAB UC SANTA CRUZ
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