My research interests bridge the areas of formal linguistics, computational linguistics, and Spanish language and literature.
Tense, Aspect, Modality, and Polarity in AMR
- In collaboration with others, I have developed a system for the annotation of tense and aspect in Abstract Meaning Representation (AMR).
- This project is now being extended to include modality, mood, negation, quantification, and scope.
AMR/Meaning Representations for Human-Robot Dialogue
- In collaboration with colleagues at the Army Research Lab (ARL), I am working on using the AMR formalism as an interlingua for human-robot collaboration.
- We have developed an annotation scheme to capture tense and aspect, speech acts, and spatial relations.
Compositional Semantic Parsing Across Graphbanks
- In collaboration with a team at Saarland University, I am working on refining a compositional neural semantic parser that achieves competitive accuracies across a diverse range of graphbanks.
- See Lindemann et al. (2019) for details.
- Our team received 4th place overall, and 1st place on PSD, in the CoNLL 2019 Shared Task.
Morphosemantics of Spanish Gender
- My dissertation investigates the relationship between morphological and semantic expression of gender, number, definiteness, and specificity, as evidenced through small (or “bare”) nominals.
- This work includes research on the gradient semantic strength of gender as evidenced by nominal ellipsis structures. I have also done substantial research on the structure of coordination and how it may elucidate nominal concord processes, specifically closest conjunct agreement (CCA).