Papers by Lucia Donatelli

13 papers
SPOTTER: A Framework for Investigating Convention Formation in a Visually Grounded Human-Robot Reference Task (2024.lrec-main)

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Challenge: Existing research has shown that conventions arise in repeated interactions over the same task, leading to a decrease in utterance length while maintaining informative content.
Approach: They propose to elicit conventions for members of an inner circle of well-known individuals in common ground, as opposed to individuals from an outer circle, who are unfamiliar.
Outcome: The proposed game platform elicits conventions for familiar and unfamiliar individuals in human-robot interaction.
Normalizing Compositional Structures Across Graphbanks (2020.coling-main)

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Challenge: Graph-based meaning representations (MRs) exhibit structural differences that reflect different theoretical and design considerations, presenting challenges to uniform linguistic analysis and cross-framework semantic parsing.
Approach: They propose a method to normalize MRs at the compositional level by linguistically-grounded rules.
Outcome: The proposed method increases the match in compositional structure between MRs and improves multi-task learning in a low-resource setting.
Abstract Meaning Representation for Gesture (2022.lrec-1)

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Challenge: Abstract Meaning Representation (AMR) is an annotated graphbased representation that expresses the meaning of a sentence in terms of its predicate-argument structure.
Approach: They propose an extension to Abstract Meaning Representation (AMR) that captures the meaning of gesture.
Outcome: The proposed model is more challenging than standard AMR while integrating meaningful elements unique to gesture.
Dialogue-AMR: Abstract Meaning Representation for Dialogue (2020.lrec-1)

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Challenge: Abstract Meaning Representation (AMR) does not capture the illocutionary force or speaker’s intended contribution in the broader dialogue context.
Approach: They propose a schema that enriches Abstract Meaning Representation (AMR) it provides a semantic representation for facilitating Natural Language Understanding (NLU) in dialogue systems.
Outcome: The proposed schema provides a semantic representation for facilitating Natural Language Understanding (NLU) in human-robot dialogue systems.
AMR Parsing is Far from Solved: GrAPES, the Granular AMR Parsing Evaluation Suite (2023.emnlp-main)

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Challenge: Abstract Meaning Representation parsers have improved in recent years, but not solved.
Approach: They propose an evaluation suite that evaluates AMR parsers on a range of phenomena . they find that current parser outputs are far from satisfactory .
Outcome: The proposed evaluation suite reveals the abilities and shortcomings of current parsers.
SLOG: A Structural Generalization Benchmark for Semantic Parsing (2023.emnlp-main)

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Challenge: Existing compositional generalization benchmarks focus on lexical generalisation, the interpretation of novel lexicals in syntactic structures familiar from training.
Approach: They propose a semantic parsing dataset that extends COGS with 17 structural generalization cases to evaluate how well models generalize to new complex linguistic expressions.
Outcome: The proposed model generalization accuracy is far below the near-perfect accuracy of existing models on COGS, demonstrating the role of SLOG in foregrounding the large discrepancy between models’ lexical and structural generalization capacities.
Aligning Actions Across Recipe Graphs (2021.emnlp-main)

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Challenge: a recipe explains step by step how to cook a dish, but recipes differ in which cooking actions they describe explicitly, how they describe them, and in which order.
Approach: They propose a recipe corpus which annotates cooking steps in recipes at sentence level . they train a neural model to predict recipes on ARA and model it for automatic understanding .
Outcome: The proposed model can predict recipes with fine-grained structural information . it shows that recipes can be explained in different ways, or not at all .
Encoding Gesture in Multimodal Dialogue: Creating a Corpus of Multimodal AMR (2024.lrec-main)

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Challenge: Abstract Meaning Representation (AMR) was designed to represent sentence meaning in English text, but recent research has explored its adaptation to broader domains, including documents, dialogues, spatial information, cross-lingual tasks, and gesture.
Approach: They propose to annotate a multimodal (speech and gesture) AMR corpus in a task-based setting and capture coreference relationships across modalities.
Outcome: The proposed corpus captures coreference relationships across modalities, enabling fine-grained analysis of how gesture and natural language interact.
A Two-Level Interpretation of Modality in Human-Robot Dialogue (2020.coling-main)

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Challenge: modal expressions are used to communicate and align world knowledge, but there is no obvious manner to ground them in the shared environment.
Approach: They propose a two-level annotation scheme for modality that captures both content and intent and a task-oriented, pragmatic representation that maps to our robot's capabilities.
Outcome: The proposed model can be grounded and dynamically interpreted.
Compositional generalization with a broad-coverage semantic parser (2022.starsem-1)

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Challenge: Recent work has shown that compositional generalization on COGS is difficult and complex.
Approach: They propose a compositional semantic parser that solves compositional generalization on COGS dataset.
Outcome: The AM parser solves compositional generalization on the COGS dataset.
A Corpus of German Abstract Meaning Representation (DeAMR) (2024.lrec-main)

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Challenge: Abstract Meaning Representations (AMRs) are semantic graphs that abstract away from surface syntax and capture the meaning of who does what to whom in a sentence.
Approach: They propose to use German Abstract Meaning Representation (Deutsche AMR) to represent the structure and semantics of German.
Outcome: The proposed framework is based on an annotated corpus of 400 DeAMR in German and is validated through inter-annotator agreement.
More frequent verbs are associated with more diverse valency frames: Efficient principles at the lexicon-grammar interface (2024.acl-long)

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Challenge: Existing evidence has focused on word-internal properties, such as Zipf's observation that more frequent words are optimized in form to minimize communicative cost.
Approach: They propose to examine the hypothesis that efficient lexicon organization is also reflected in valency, or the combinations and orders of additional words and phrases a verb selects for in a sentence.
Outcome: The proposed hypothesis is consistent with communicative efficiency principles.
SCOUT: A Situated and Multi-Modal Human-Robot Dialogue Corpus (2024.lrec-main)

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Challenge: The corpus contains 89,056 utterances and 310,095 words from 278 dialogues averaging 320 utterrances per dialogue.
Approach: They present the Situated Corpus Of Understanding Transactions, a multi-modal collection of human-robot dialogue in the task domain of collaborative exploration.
Outcome: The Situated Corpus Of Understanding Transactions (SCOUT) contains 89,056 utterances and 310,095 words from 278 dialogues averaging 320 utterrances per dialogue.

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