Sumithra Velupillai

Publication Activity (10 Years)

Years Active: 2005-2023
Publications (10 Years): 42

Top Topics

Natural Language

Temporal Information

Top Venues

Publications

Jaya Chaturvedi, Sumithra Velupillai, Robert Stewart, Angus Roberts
Identifying Mentions of Pain in Mental Health Records Text: A Natural Language Processing Approach. MedInfo (2023)
Jaya Chaturvedi, Tao Wang, Sumithra Velupillai, Robert Stewart, Angus Roberts
Development of a Knowledge Graph Embeddings Model for Pain. CoRR (2023)
Jaya Chaturvedi, Sumithra Velupillai, Robert Stewart, Angus Roberts
Identifying Mentions of Pain in Mental Health Records Text: A Natural Language Processing Approach. CoRR (2023)
Jaya Chaturvedi, Diana Shamsutdinova, Felix Zimmer, Sumithra Velupillai, Daniel Stahl, Robert Stewart, Angus Roberts
Sample Size in Natural Language Processing within Healthcare Research. CoRR (2023)
Zahra Mahabadi, Maryam Mahabadi, Sumithra Velupillai, Angus Roberts, Philip McGuire, Zina M. Ibrahim, Rashmi Patel
Evaluating physical urban features in several mental illnesses using electronic health record data. Frontiers Digit. Health 4 (2022)
Mark Turner, Julia Ive, Sumithra Velupillai
Linguistic Uncertainty in Clinical NLP: A Taxonomy, Dataset and Approach. CLEF (2021)
Jaya Chaturvedi, Aurelie Mascio, Sumithra Velupillai, Angus Roberts
Development of a Lexicon for Pain. Frontiers Digit. Health 3 (2021)
Natalia Viani, Joyce Kam, Lucia Yin, André Bittar, Rina Dutta, Rashmi Patel, Robert Stewart, Sumithra Velupillai
Temporal information extraction from mental health records to identify duration of untreated psychosis. J. Biomed. Semant. 11 (1) (2020)
Xingyi Song, Johnny Downs, Sumithra Velupillai, Rachel Holden, Maxim Kikoler, Kalina Bontcheva, Rina Dutta, Angus Roberts
Using Deep Neural Networks with Intra- and Inter-Sentence Context to Classify Suicidal Behaviour. LREC (2020)
Sagar Joglekar, Sumithra Velupillai, Rina Dutta, Nishanth Sastry
Analysing Meso and Macro conversation structures in an online suicide support forum. CoRR (2020)
Liam Tollinton, Alexander M. Metcalf, Sumithra Velupillai
Enhancing predictions of patient conveyance using emergency call handler free text notes for unconscious and fainting incidents reported to the London Ambulance Service. Int. J. Medical Informatics 141 (2020)
Ali Amin-Nejad, Julia Ive, Sumithra Velupillai
Exploring Transformer Text Generation for Medical Dataset Augmentation. LREC (2020)
Julia Ive, Natalia Viani, Joyce Kam, Lucia Yin, Somain Verma, Stephen Puntis, Rudolf N. Cardinal, Angus Roberts, Robert Stewart, Sumithra Velupillai
Generation and evaluation of artificial mental health records for Natural Language Processing. npj Digit. Medicine 3 (2020)
Zixu Wang, Julia Ive, Sinead Moylett, Christoph Mueller, Rudolf N. Cardinal, Sumithra Velupillai, John O'Brien, Robert Stewart
Distinguishing between Dementia with Lewy bodies (DLB) and Alzheimer's Disease (AD) using Mental Health Records: a Classification Approach. ClinicalNLP@EMNLP (2020)
Sonia Priou, Natalia Viani, Veshalee Vernugopan, Chloe Tytherleigh, Faduma Abdalla Hassan, Rina Dutta, Trudie Chalder, Sumithra Velupillai
Clinical History Segment Extraction from Chronic Fatigue Syndrome Assessments to Model Disease Trajectories. MIE (2020)
Jaya Chaturvedi, Natalia Viani, Jyoti Sanyal, Chloe Tytherleigh, Idil Hasan, Kate Baird, Sumithra Velupillai, Robert Stewart, Angus Roberts
Development of a Corpus Annotated with Medications and their Attributes in Psychiatric Health Records. LREC (2020)
Louise Dupuis, Nicol Bergou, Hegler Tissot, Sumithra Velupillai
Relative and Incomplete Time Expression Anchoring for Clinical Text. ClinicalNLP@EMNLP (2020)
Natalia Viani, Joyce Kam, Lucia Yin, Somain Verma, Robert Stewart, Rashmi Patel, Sumithra Velupillai
Annotating Temporal Relations to Determine the Onset of Psychosis Symptoms. MedInfo (2019)
André Bittar, Sumithra Velupillai, Angus Roberts, Rina Dutta
Text Classification to Inform Suicide Risk Assessment in Electronic Health Records. MedInfo (2019)
Natalia Viani, Hegler Tissot, Ariane Bernardino, Sumithra Velupillai
Time Expression Annotation for Multiple Clinical Specialties. AMIA (2019)
Jessica D. Tenenbaum, Ramakanth Kavuluru, Thomas H. McCoy, Özlem Uzuner, Sumithra Velupillai
Clinical Text Mining in Mental Health. AMIA (2019)
Andrea Andrenucci, Hercules Dalianis, Sumithra Velupillai
Knowledge patterns for online health portal development. Health Informatics J. 25 (4) (2019)
Natalia Viani, Hegler Tissot, Ariane Bernardino, Sumithra Velupillai
Annotating Temporal Information in Clinical Notes for Timeline Reconstruction: Towards the Definition of Calendar Expressions. BioNLP@ACL (2019)
Sumithra Velupillai, Sophie Epstein, André Bittar, Thomas Stephenson, Rina Dutta, Johnny Downs
Identifying Suicidal Adolescents from Mental Health Records Using Natural Language Processing. MedInfo (2019)
Zixu Wang, Julia Ive, Sumithra Velupillai, Lucia Specia
Is artificial data useful for biomedical Natural Language Processing. CoRR (2019)
Zixu Wang, Julia Ive, Sumithra Velupillai, Lucia Specia
Is artificial data useful for biomedical Natural Language Processing algorithms? BioNLP@ACL (2019)
Natalia Viani, Rashmi Patel, Robert Stewart, Sumithra Velupillai
Generating Positive Psychosis Symptom Keywords from Electronic Health Records. AIME (2019)
Richard G. Jackson, Rashmi Patel, Sumithra Velupillai, George Gkotsis, David Hoyle, Robert Stewart
Knowledge discovery for Deep Phenotyping serious mental illness from Electronic Mental Health records. F1000Research 7 (2018)
Julia Ive, Natalia Viani, David Chandran, André Bittar, Sumithra Velupillai
KCL-Health-NLP@CLEF eHealth 2018 Task 1: ICD-10 Coding of French and Italian Death Certificates with Character-Level Convolutional Neural Networks. CLEF (Working Notes) (2018)
Julia Ive, George Gkotsis, Rina Dutta, Robert Stewart, Sumithra Velupillai
Hierarchical neural model with attention mechanisms for the classification of social media text related to mental health. CLPsych@NAACL-HTL (2018)
Natalia Viani, Lucia Yin, Joyce Kam, Ayunni Alawi, André Bittar, Rina Dutta, Rashmi Patel, Robert Stewart, Sumithra Velupillai
Time Expressions in Mental Health Records for Symptom Onset Extraction. Louhi@EMNLP (2018)
Aurélie Névéol, Hercules Dalianis, Sumithra Velupillai, Guergana Savova, Pierre Zweigenbaum
Clinical Natural Language Processing in languages other than English: opportunities and challenges. J. Biomed. Semant. 9 (1) (2018)
Sumithra Velupillai, Hanna Suominen, Maria Liakata, Angus Roberts, Anoop D. Shah, Katherine Morley, David Osborn, Joseph Hayes, Robert Stewart, Johnny Downs, Wendy W. Chapman, Rina Dutta
Using clinical Natural Language Processing for health outcomes research: Overview and actionable suggestions for future advances. J. Biomed. Informatics 88 (2018)
Aurélie Névéol, Noémie Elhadad, Sumithra Velupillai, Hua Xu, Guergana Savova
Clinical Natural Language Processing in Languages Other Than English. AMIA (2017)
Johnny Downs, Sumithra Velupillai, George Gkotsis, Rachel Holden, Maxim Kikoler, Harry Dean, Andrea Fernandes, Rina Dutta
Detection of Suicidality in Adolescents with Autism Spectrum Disorders: Developing a Natural Language Processing Approach for Use in Electronic Health Records. AMIA (2017)
Janani Kalyanam, Sumithra Velupillai, Mike Conway, Gert R. G. Lanckriet
From event detection to storytelling on microblogs. ASONAM (2016)
Abdulrahman Al Abdulsalam, Sumithra Velupillai, Stéphane M. Meystre
UtahBMI at SemEval-2016 Task 12: Extracting Temporal Information from Clinical Text. SemEval@NAACL-HLT (2016)
Sumithra Velupillai, Rebecka Weegar, Maria Kvist
Temporal Annotation of Swedish Intensive Care Notes. AMIA (2016)
Sumithra Velupillai, Danielle L. Mowery, Mike Conway, John F. Hurdle, Brent Kious
Vocabulary Development To Support Information Extraction of Substance Abuse from Psychiatry Notes. BioNLP@ACL (2016)
Danielle L. Mowery, Brett R. South, Lee M. Christensen, Jianwei Leng, Laura-Maria Peltonen, Sanna Salanterä, Hanna Suominen, David Martínez, Sumithra Velupillai, Noémie Elhadad, Guergana Savova, Sameer Pradhan, Wendy W. Chapman
Normalizing acronyms and abbreviations to aid patient understanding of clinical texts: ShARe/CLEF eHealth Challenge 2013, Task 2. J. Biomed. Semant. 7 (2016)
George Gkotsis, Sumithra Velupillai, Anika Oellrich, Harry Dean, Maria Liakata, Rina Dutta
Don't Let Notes Be Misunderstood: A Negation Detection Method for Assessing Risk of Suicide in Mental Health Records. CLPsych@HLT-NAACL (2016)
George Gkotsis, Anika Oellrich, Tim J. P. Hubbard, Richard J. B. Dobson, Maria Liakata, Sumithra Velupillai, Rina Dutta
The language of mental health problems in social media. CLPsych@HLT-NAACL (2016)
Sumithra Velupillai, Danielle L. Mowery, Samir E. AbdelRahman, Lee M. Christensen, Wendy W. Chapman
Towards a Generalizable Time Expression Model for Temporal Reasoning in Clinical Notes. AMIA (2015)
Sumithra Velupillai, Martin Duneld, Aron Henriksson, Maria Kvist, Maria Skeppstedt, Hercules Dalianis
Louhi 2014: Special issue on health text mining and information analysis. BMC Medical Informatics Decis. Mak. 15 (S-2) (2015)
Hercules Dalianis, Aron Henriksson, Maria Kvist, Sumithra Velupillai, Rebecka Weegar
HEALTH BANK - A Workbench for Data Science Applications in Healthcare. CAiSE Industry Track (2015)
Sumithra Velupillai, Danielle L. Mowery, Samir E. AbdelRahman, Lee M. Christensen, Wendy W. Chapman
BluLab: Temporal Information Extraction for the 2015 Clinical TempEval Challenge. SemEval@NAACL-HLT (2015)
Janani Kalyanam, Sumithra Velupillai, Son Doan, Mike Conway, Gert R. G. Lanckriet
Facts and Fabrications about Ebola: A Twitter Based Study. CoRR (2015)
Elin Lövestam, Sumithra Velupillai, Maria Kvist
Abbreviations in Swedish Clinical Text - use by three professions. MIE (2014)
Sumithra Velupillai, Danielle L. Mowery, Lee M. Christensen, Noemie Elhadad, Sameer Pradhan, Guergana K. Savova, Wendy W. Chapman
Disease/Disorder Semantic Template Filling - Information Extraction Challenge in the ShARe/CLEF eHealth Evaluation Lab 2014. AMIA (2014)
Gintare Grigonyte, Maria Kvist, Sumithra Velupillai, Mats Wirén
Improving Readability of Swedish Electronic Health Records through Lexical Simplification: First Results. PITR@EACL (2014)
Danielle L. Mowery, Sumithra Velupillai, Brett R. South, Lee M. Christensen, David Martínez, Liadh Kelly, Lorraine Goeuriot, Noémie Elhadad, Sameer Pradhan, Guergana K. Savova, Wendy W. Chapman
Task 2: ShARe/CLEF eHealth Evaluation Lab 2014. CLEF (Working Notes) (2014)
Danielle L. Mowery, Mindy K. Ross, Sumithra Velupillai, Stéphane M. Meystre, Janyce Wiebe, Wendy W. Chapman
Generating Patient Problem Lists from the ShARe Corpus using SNOMED CT/SNOMED CT CORE Problem List. BioNLP@ACL (2014)
Maria Kvist, Sumithra Velupillai
SCAN: A Swedish Clinical Abbreviation Normalizer - Further Development and Adaptation to Radiology. CLEF (2014)
Sumithra Velupillai, Maria Skeppstedt, Maria Kvist, Danielle L. Mowery, Brian E. Chapman, Hercules Dalianis, Wendy W. Chapman
Cue-based assertion classification for Swedish clinical text - Developing a lexicon for pyConTextSwe. Artif. Intell. Medicine 61 (3) (2014)
Liadh Kelly, Lorraine Goeuriot, Hanna Suominen, Tobias Schreck, Gondy Leroy, Danielle L. Mowery, Sumithra Velupillai, Wendy W. Chapman, David Martínez, Guido Zuccon, João R. M. Palotti
Overview of the ShARe/CLEF eHealth Evaluation Lab 2014. CLEF (2014)
Sumithra Velupillai
Temporal Expressions in Swedish Medical Text - A Pilot Study. BioNLP@ACL (2014)
Hideyuki Tanushi, Hercules Dalianis, Martin Duneld, Maria Kvist, Maria Skeppstedt, Sumithra Velupillai
Negation Scope Delimitation in Clinical Text Using Three Approaches: NegEx; PyConTextNLP and SynNeg. NODALIDA (2013)
Wendy Webber Chapman, Dieter Hillert, Sumithra Velupillai, Maria Kvist, Maria Skeppstedt, Brian E. Chapman, Mike Conway, Melissa Tharp, Danielle L. Mowery, Louise Deléger
Extending the NegEx Lexicon for Multiple Languages. MedInfo (2013)
Eric-Oluf Svee, Maria Kvist, Sumithra Velupillai
Capturing and Representing Values for Requirements of Personal Health Records. PoEM (Short Papers) (2013)
Hanna Suominen, Sanna Salanterä, Sumithra Velupillai, Wendy Webber Chapman, Guergana K. Savova, Noemie Elhadad, Sameer Pradhan, Brett R. South, Danielle L. Mowery, Gareth J. F. Jones, Johannes Leveling, Liadh Kelly, Lorraine Goeuriot, David Martínez, Guido Zuccon
Overview of the ShARe/CLEF eHealth Evaluation Lab 2013. CLEF (2013)
Niklas Isenius, Sumithra Velupillai, Maria Kvist
Initial Results in the Development of SCAN A Swedish Clinical Abbreviation Normalizer. CLEF (Online Working Notes/Labs/Workshop) (2012)
Danielle L. Mowery, Sumithra Velupillai, Wendy W. Chapman
Medical diagnosis lost in translation - Analysis of uncertainty and negation expressions in English and Swedish clinical texts. BioNLP@HLT-NAACL (2012)
Sumithra Velupillai, Maria Kvist
Fine-Grained Certainty Level Annotations Used for Coarser-Grained E-Health Scenarios - Certainty Classification of Diagnostic Statements in Swedish Clinical Text. CICLing (2) (2012)
Helen Allvin, Elin Carlsson, Hercules Dalianis, Riitta Danielsson-Ojala, Vidas Daudaravicius, Martin Hassel, Dimitrios Kokkinakis, Heljä Lundgrén-Laine, Gunnar H. Nilsson, Øystein Nytrø, Sanna Salanterä, Maria Skeppstedt, Hanna Suominen, Sumithra Velupillai
Characteristics of Finnish and Swedish intensive care nursing narratives: a comparative analysis to support the development of clinical language technologies. J. Biomed. Semant. 2 (S-3) (2011)
Martin Duneld, Aron Henriksson, Sumithra Velupillai
Something Old, Something New - Applying a Pre-trained Parsing Model to Clinical Swedish. NODALIDA (2011)
Sumithra Velupillai, Hercules Dalianis, Maria Kvist
Factuality Levels of Diagnoses in Swedish Clinical Text. MIE (2011)
Hercules Dalianis, Martin Hassel, Sumithra Velupillai
Louhi 2010: Special issue on Text and Data Mining of Health Documents. J. Biomed. Semant. 2 (S-3) (2011)
Hercules Dalianis, Sumithra Velupillai
De-identifying Swedish clinical text - refinement of a gold standard and experiments with Conditional random fields. J. Biomed. Semant. 1 (2010)
Aron Henriksson, Sumithra Velupillai
Levels of certainty in knowledge-intensive corpora: an initial annotation study. NeSp-NLP@ACL (2010)
Sumithra Velupillai
Semantic annotations in clinical documentation: exploring potentials for future information retrieval. ESAIR (2010)
Oscar Täckström, Sumithra Velupillai, Martin Hassel, Gunnar Eriksson, Hercules Dalianis, Jussi Karlgren
Uncertainty Detection as Approximate Max-Margin Sequence Labelling. CoNLL Shared Task (2010)
Sumithra Velupillai
Towards a better understanding of uncertainties and speculations in Swedish clinical text - Analysis of an initial annotation trial. NeSp-NLP@ACL (2010)
Helen Allvin, Elin Carlsson, Hercules Dalianis, Riitta Danielsson-Ojala, Vidas Daudaravicius, Martin Hassel, Dimitrios Kokkinakis, Heljä Lundgrén-Laine, Gunnar H. Nilsson, Øystein Nytrø, Sanna Salanterä, Maria Skeppstedt, Hanna Suominen, Sumithra Velupillai
Characteristics and Analysis of Finnish and Swedish Clinical Intensive Care Nursing Narratives. Louhi@NAACL-HLT (2010)
Hercules Dalianis, Sumithra Velupillai
How Certain are Clinical Assessments? Annotating Swedish Clinical Text for (Un)certainties, Speculations and Negations. LREC (2010)
Hercules Dalianis, Gunnar H. Nilsson, Sumithra Velupillai
Is De-identification of Electronic Health Records Possible? OR Can We Use Health Record Corpora for Research? AAAI Fall Symposium: Virtual Healthcare Interaction (2009)
Sumithra Velupillai, Hercules Dalianis, Martin Hassel, Gunnar H. Nilsson
Developing a standard for de-identifying electronic patient records written in Swedish: Precision, recall and F-measure in a manual and computerized annotation trial. Int. J. Medical Informatics 78 (12) (2009)
Magnus Rosell, Sumithra Velupillai
Revealing Relations between Open and Closed Answers in Questionnaires through Text Clustering Evaluation. LREC (2008)
Yvonne Samuelsson, Oscar Täckström, Sumithra Velupillai, Johan Eklund, Mark Fishel, Markus Saers
Mixing and Blending Syntactic and Semantic Dependencies. CoNLL (2008)
Magnus Rosell, Sumithra Velupillai
The impact of phrases in document clustering for Swedish. NODALIDA (2005)