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I joined the University of Arizona School of Information in August 2016, after three years as an assistant professor in Computer and Information Science at the University of Alabama at Birmingham. I previously worked as a postdoctoral researcher at Stanford University's Natural Language Processing group, Johns Hopkins University's Human Language Technology Center of Excellence, KULeuven's Language Intelligence and Information Retrieval group in Belgium, and the University of Colorado's Center for Language and Education Research.Show Less
VOSviewer
Courses
- SNLPStatistical Natural Language Processing
- NNNeural Networks
- SFIAStatistical Foundations for the Information Age
- IRMInformation Research Methods
Grants
- Learning Science Concepts Through Metaphor Comprehension, Production, and Conversation: Behavioral, Neural and Artificial Intelligence Measures
Co-Investigator (COI)
2022
$352.8K
Active - Using Natural Language Processing to Determine Predictors of Healthy Diet and Physical Activity Behavior Change in Ovarian Cancer Survivors
Principal Investigator (PI)
2022
$129.4K
Active - Extended Methods and Software Development for Health NLP
Principal Investigator (PI)
2021
$224.0K
Active - VADER: Voice Assistant for Data Entry and Recording
Principal Investigator (PI)
2021
$56.6K
Active - Temporal Relation Discovery for Clinical Text
Principal Investigator (PI)
2019
$227.1K
Active - RIDIR: Collaborative Research: A Data Science Platform and Mechanisms for Its Sustainability
Co-Investigator (COI)
2018
$1.5M
Active - Using Natural Language Processing to Determine Predictors of Healthy Diet and Physical Activity Behavior Change in Ovarian Cancer Survivors
Multiple Principal Investigator (MPI)
2021
$209.3K
- Automated Domain Adaptation for Clinical Natural Language Processing
Principal Investigator (PI)
2018
$213.3K
- GRASP: Global Reading and Assembly for Semantic, Probabilistic World Models
Co-Investigator (COI)
2017
$9.6M
- GRASP: Global Reading and Assembly for Semantic, Probabilistic World Models
Co-Investigator (COI)
2017
$1.1M
Books
- Proceedings of the 4th Clinical Natural Language Processing Workshop
2022
- Proceedings of the 2021 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies
2021
- Proceedings of the 3rd Clinical Natural Language Processing Workshop
2020
- Proceedings of the 2nd Clinical Natural Language Processing Workshop
2019
- Proceedings of The 12th International Workshop on Semantic Evaluation (SemEval-2018)
2018
- Proceedings of the 11th International Workshop on Semantic Evaluation (SemEval-2017)
2017
- Proceedings of the Clinical Natural Language Processing Workshop (ClinicalNLP)
2016
- Proceedings of the 10th International Workshop on Semantic Evaluation (SemEval-2016)
2016
- Proceedings of the EACL 2014 Workshop on Computational Approaches to Causality in Language (CAtoCL)
2014
- 51st Annual Meeting of the Association for Computational Linguistics Proceedings of the Student Research Workshop
2013
- Proceedings of the 2013 Conference on Empirical Methods in Natural Language Processing
2013
News
- UArizona to Host DC Center for Outreach & Collaboration's Inaugural Event
2021
Publications (160)
Recent
- Toward NEPA performance: A framework for assessing EIAs
2022
- Taxonomy Builder: a Data-driven and User-centric Tool for Streamlining Taxonomy Construction
2022
- Exploring Text Representations for Generative Temporal Relation Extraction
2022
- Proceedings of the 4th Clinical Natural Language Processing Workshop
2022
- Ensemble-based Fine-Tuning Strategy for Temporal Relation Extraction from the Clinical Narrative
2022
- TEAM-Atreides at SemEval-2022 Task 11: On leveraging data augmentation and ensemble to recognize complex Named Entities in Bangla
2022
- A Comparison of Strategies for Source-Free Domain Adaptation
2022
- Lessons Learned from a Secondary Analysis Using Natural Language Processing and Machine Learning from a Lifestyle Intervention
2022
- UA-KO at SemEval-2022 Task 11: Data Augmentation and Ensembles for Korean Named Entity Recognition
2022
- Exploring transformers and time lag features for predicting changes in mood over time
2022
- Engagement with partisan Russian troll tweets during the 2016 U.S. presidential election: a social identity perspective
2022
- If You Want to Go Far Go Together: Unsupervised Joint Candidate Evidence Retrieval for Multi-hop Question Answering
2021
- Explainable Multi-hop Verbal Reasoning Through Internal Monologue
2021
- Consumer Cynicism Identification for Spanish Reviews using a Spanish Transformer Model
2021
- Proceedings of the 2021 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies
2021
- SemEval-2021 Task 10: Source-Free Domain Adaptation for Semantic Processing
2021
- Simplifying annotation of intersections in time normalization annotation: exploring syntactic and semantic validation
2021
- Detection of Puffery on the English Wikipedia
2021
- Triplet-Trained Vector Space and Sieve-Based Search Improve Biomedical Concept Normalization
2021
- EntityBERT: Entity-centric Masking Strategy for Model Pretraining for the Clinical Domain
2021
- Domain adaptation in practice: Lessons from a real-world information extraction pipeline
2021
- Assessing the Russian Troll Efforts to Sow Discord on Twitter during the 2016 U.S. Election
2021
- NEPA performance: conceptualizing multi-dimensional policy objectives
2021
- Do pretrained transformers infer telicity like humans?
2021
- The University of Arizona at SemEval-2021 Task 10: Applying Self-training, Active Learning and Data Augmentation to Source-free Domain Adaptation
2021
- Proceedings of the 3rd Clinical Natural Language Processing Workshop
2020
- Fine-tuning for multi-domain and multi-label uncivil language detection
2020
- Having Your Cake and Eating It Too: Training Neural Retrieval for Language Inference without Losing Lexical Match
2020
- How does BERT's attention change when you fine-tune? An analysis methodology and a case study in negation scope
2020
- Defining and Learning Refined Temporal Relations in the Clinical Narrative
2020
- Unsupervised Alignment-based Iterative Evidence Retrieval for Multi-hop Question Answering
2020
- A BERT-based One-Pass Multi-Task Model for Clinical Temporal Relation Extraction
2020
- Assisting Undergraduate Students in Writing Spanish Methodology Sections
2020
- Unified Medical Language System resources improve sieve-based generation and Bidirectional Encoder Representations from Transformers (BERT)–based ranking for concept normalization
2020
- A Dataset and Evaluation Framework for Complex Geographical Description Parsing
2020
- A Generate-and-Rank Framework with Semantic Type Regularization for Biomedical Concept Normalization
2020
- Rethinking domain adaptation for machine learning over clinical language
2020
- Does BERT need domain adaptation for clinical negation detection?
2020
- TTUI at SemEval-2020 Task 11: Propaganda Detection with Transfer Learning and Ensembles
2020
- Quick and (not so) Dirty: Unsupervised Selection of Justification Sentences for Multi-hop Question Answering
2019
- Proceedings of the 2nd Clinical Natural Language Processing Workshop
2019
- Incivility Detection in Online Comments
2019
- University of Arizona at SemEval-2019 Task 12: Deep-Affix Named Entity Recognition of Geolocation Entities
2019
- A BERT-based Universal Model for Both Within- and Cross-sentence Clinical Temporal Relation Extraction
2019
- Inferring missing metadata from environmental policy texts
2019
- Eidos, INDRA Delphi: From Free Text to Executable Causal Models
2019
- Pre-trained Contextualized Character Embeddings Lead to Major Improvements in Time Normalization: a Detailed Analysis
2019
- Alignment over Heterogeneous Embeddings for Question Answering
2019
- A Model for Identifying Steps in Undergraduate Thesis Methodology
2019
- Eidos, INDRA, & Delphi: From Free Text to Executable Causal Models
2019
- From Characters to Time Intervals: New Paradigms for Evaluation and Neural Parsing of Time Normalizations
2018
- Measuring the Latency of Depression Detection in Social Media
2018
- UArizona at the MADE1.0 NLP Challenge
2018
- Deep Affix Features Improve Neural Named Entity Recognizers
2018
- CUILESS2016: a clinical corpus applying compositional normalization of text mentions
2018
- Self-training improves Recurrent Neural Networks performance for Temporal Relation Extraction
2018
- A Survey on Recent Advances in Named Entity Recognition from Deep Learning models
2018
- Proceedings of The 12th International Workshop on Semantic Evaluation (SemEval-2018)
2018
- Embedding User Behavioral Aspect in TF-IDF Like Representation
2018
- SemEval 2018 Task 6: Parsing Time Normalizations
2018
- UArizona at the CLEF eRisk 2017 Pilot Task: Linear and Recurrent Models for Early Depression Detection
2017
- Infusing Latent User-Concerns from User Reviews into Collaborative Filtering
2017
- Unsupervised Domain Adaptation for Clinical Negation Detection
2017
- SemEval-2017 Task 12: Clinical TempEval
2017
- Towards generalizable entity-centric clinical coreference resolution
2017
- Improving Implicit Semantic Role Labeling by Predicting Semantic Frame Arguments
2017
- Neural Temporal Relation Extraction
2017
- Recurrent Neural Network Architectures for Event Extraction from Italian Medical Reports
2017
- Representations of Time Expressions for Temporal Relation Extraction with Convolutional Neural Networks
2017
- Proceedings of the 11th International Workshop on Semantic Evaluation (SemEval-2017)
2017
- SemEval-2016 Task 12: Clinical TempEval
2016
- Visualizing the Content of a Children's Story in a Virtual World: Lessons Learned
2016
- Analysis of Anxious Word Usage on Online Health Forums
2016
- Proceedings of the Clinical Natural Language Processing Workshop (ClinicalNLP)
2016
- Facing the most difficult case of Semantic Role Labeling: A collaboration of word embeddings and co-training
2016
- Improving Temporal Relation Extraction with Training Instance Augmentation
2016
- Domain Adaptation for Authorship Attribution: Improved Structural Correspondence Learning
2016
- Towards Extracting Coherent User Concerns and Their Hierarchical Organization from User Reviews
2016
- Extracting Hierarchy of Coherent User-Concerns to Discover Intricate User Behavior from User Reviews
2016
- Efficient identification of nationally mandated reportable cancer cases using natural language processing and machine learning
2016
- Why Do They Leave: Modeling Participation in Online Depression Forums
2016
- A Semantically Compositional Annotation Scheme for Time Normalization
2016
- Proceedings of the 10th International Workshop on Semantic Evaluation (SemEval-2016)
2016
- Multilayered temporal modeling for the clinical domain
2016
- DLS@CU at SemEval-2016 Task 1: Supervised Models of Sentence Similarity
2016
- Age and Gender Prediction on Health Forum Data
2016
- Domain Adaptation in Semantic Role Labeling Using a Neural Language Model and Linguistic Resources
2015
- Developing Language-tagged Corpora for Code-switching Tweets
2015
- DLS@CU: Sentence Similarity from Word Alignment and Semantic Vector Composition
2015
- SemEval-2015 Task 6: Clinical TempEval
2015
- Feature-Rich Two-Stage Logistic Regression for Monolingual Alignment
2015
- A survey on the application of recurrent neural networks to statistical language modeling
2015
- Extracting Time Expressions from Clinical Text
2015
- Predicting Continued Participation in Online Health Forums
2015
- Not All Character N-grams Are Created Equal: A Study in Authorship Attribution
2015
- CUAB: Supervised Learning of Disorders and their Attributes using Relations
2015
- Adapting Coreference Resolution for Narrative Processing
2015
- Dense Event Ordering with a Multi-Pass Architecture
2014
- An Annotation Framework for Dense Event Ordering
2014
- Towards automatic identification of core concepts in educational resources
2014
- Cross-Topic Authorship Attribution: Will Out-Of-Topic Data Help?
2014
- Easy Does It: More Usable CAPTCHAs
2014
- Descending-Path Convolution Kernel for Syntactic Structures
2014
- The Stanford CoreNLP Natural Language Processing Toolkit
2014
- Text Mining for Open Domain Semi-Supervised Semantic Role Labeling
2014
- Temporal Annotation in the Clinical Domain
2014
- DLS@CU: Sentence Similarity from Word Alignment
2014
- ClearTK 2.0: Design Patterns for Machine Learning in UIMA
2014
- Proceedings of the EACL 2014 Workshop on Computational Approaches to Causality in Language (CAtoCL)
2014
- Back to Basics for Monolingual Alignment: Exploiting Word Similarity and Contextual Evidence
2014
- Identifying Weak Sentences in Student Drafts: A Tutoring System
2014
- SemEval-2013 Task 3: Spatial Role Labeling
2013
- Proceedings of the 2013 Conference on Empirical Methods in Natural Language Processing
2013
- Normalization and standardization of electronic health records for high-throughput phenotyping: the SHARPn consortium
2013
- Discovering body site and severity modifiers in clinical texts
2013
- ClearTK-TimeML: A minimalist approach to TempEval 2013
2013
- Characterizing and Predicting the Multifaceted Nature of Quality in Educational Web Resources
2013
- Automatic extraction of core learning goals and generation of pedagogical sequences through a collection of digital library resources
2013
- Discovering Temporal Narrative Containers in Clinical Text
2013
- CU: Computational Assessment of Short Free Text Answers - A Tool for Evaluating Students' Understanding
2013
- DLS@CU-CORE: A Simple Machine Learning Model of Semantic Textual Similarity
2013
- 51st Annual Meeting of the Association for Computational Linguistics Proceedings of the Student Research Workshop
2013
- A Synchronous Context Free Grammar for Time Normalization
2013
- SemEval-2012 Task 3: Spatial Role Labeling
2012
- Identifying science concepts and student misconceptions in an interactive essay writing tutor
2012
- Citation-based bootstrapping for large-scale author disambiguation
2012
- Annotating Story Timelines as Temporal Dependency Structures
2012
- Extracting Narrative Timelines as Temporal Dependency Structures
2012
- Skip N-grams and Ranking Functions for Predicting Script Events
2012
- Using Query Patterns to Learn the Duration of Events
2011
- Model-Portability Experiments for Textual Temporal Analysis
2011
- How Good are Humans at Solving CAPTCHAs? A Large Scale Evaluation
2010
- Semantically Informed Machine Translation (SIMT)
2010
- Crowdsourcing and language studies: the new generation of linguistic data
2010
- Who Should I Cite? Learning Literature Search Models from Citation Behavior
2010
- Early ERP Effects of the Metaphorical Profile of a Word
2010
- Automatically assessing resource quality for educational digital libraries
2009
- ClearTK: A Framework for Statistical Natural Language Processing
2009
- Automatically characterizing resource quality for educational digital libraries
2009
- Towards Temporal Relation Discovery from the Clinical Narrative
2009
- Building Test Suites for UIMA Components
2009
- Topic model methods for automatically identifying out-of-scope resources
2009
- Decaptcha: Breaking 75\% of eBay Audio CAPTCHAs
2009
- Topic Model Analysis of Metaphor Frequency for Psycholinguistic Stimuli
2009
- Instructor's Solution Manual for Speech and Language Processing: An Introduction to Natural Language Processing, Computational Linguistics, and Speech Recognition (Second Edition)
2008
- Building a Corpus of Temporal-Causal Structure
2008
- ClearTK: A UIMA Toolkit for Statistical Natural Language Processing
2008
- Learning Semantic Links from a Corpus of Parallel Temporal and Causal Relations
2008
- Semantic Role Labeling for Protein Transport Predicates
2008
- CU-TMP: Temporal Relation Classification Using Syntactic and Semantic Features
2007
- Semantic integration in learning from text
2007
- Timelines from Text: Identification of Syntactic Temporal Relations
2007
- Finding Temporal Structure in Text: Machine Learning of Syntactic Temporal Relations
2007
- Finding Event, Temporal and Causal Structure in Text: A Machine Learning Approach
2007
- Identification of Event Mentions and their Semantic Class
2006
- Extracting opinion propositions and opinion holders using syntactic and lexical cues
2005
- Automatic extraction of opinion propositions and their holders
2004
- Building a foundation system for producing short answers to factual questions
2002