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Swapna Somasundaran

dblp:43/5992 · DBLP profile ↗
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13ranked-venue papers
7as first author
2since 2021 · last 2024
—ORCID · none

Domains — the database's venue-derived domains; a paper can count in several

Artificial intelligence and machine learning · 11 · 6 first-author · 2 since 2021Human-computer interaction and ubiquitous computing · 2 · 1 first-authorDatabases, data management, data science and information retrieval · 1 · 1 first-authorGraphics, computer vision, multimedia, augmented reality and games · 1Applied, interdisciplinary, general and emerging computing · 1 · 1 first-author

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Artificial intelligence
3 papers
Information extraction and text analysis · 60% Language models and text generation · 40%
Databases, data mining, and information retrieval
1 paper
Web and social media mining · 100%

Topics — the 6 heaviest of 6, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Natural language and speech › Language models and text generation › text evaluation
coherence modeling
0.412020
Two-Level Transformer and Auxiliary Coherence Modeling for Improved Text Segmentation · AAAI 2020
Natural language and speech › Information extraction and text analysis
text segmentation
0.412020
Two-Level Transformer and Auxiliary Coherence Modeling for Improved Text Segmentation · AAAI 2020
Natural language and speech › Information extraction and text analysis
sentiment analysis
0.112009
Supervised and Unsupervised Methods in Employing Discourse Relations for Improving Opinion Polarity Classification · EMNLP 2009
Natural language and speech › Information extraction and text analysis
stance detection
0.112009
Recognizing Stances in Online Debates · ACL/IJCNLP 2009
Natural language and speech › Information extraction and text analysis › discourse analysis › discourse processing
discourse relations
0.012009
Supervised and Unsupervised Methods in Employing Discourse Relations for Improving Opinion Polarity Classification · EMNLP 2009
Web and social media mining › online community analysis
online discussion analysis
0.012009
Recognizing Stances in Online Debates · ACL/IJCNLP 2009

Methods — techniques the papers use, named apart from their topics

transformer · 0.4multi-task learning · 0.4cross-lingual word embeddings · 0.4unsupervised learning · 0.1supervised learning · 0.1
YearPublicationVenuePosition
2024 Assessing Online Writing Feedback Resources: Generative AI vs. Good Samaritans
abstract
Providing constructive feedback on student essays is a critical factor in improving educational results; however, it presents notable difficulties and may demand substantial time investments, especially when aiming to deliver individualized and informative guidance. This study undertakes a comparative analysis of two readily available online resources for students seeking to hone their skills in essay writing for English proficiency tests: 1) essayforum.com, a widely used platform where students can submit their essays and receive feedback from volunteer educators at no cost, and 2) Large Language Models (LLMs) such as ChatGPT. By contrasting the feedback obtained from these two resources, we posit that they can mutually reinforce each other and are more helpful if employed in conjunction when seeking no-cost online assistance. The findings of this research shed light on the challenges of providing personalized feedback and highlight the potential of AI in advancing the field of automated essay evaluation.
Shabnam Behzad, Omid Kashefi, Swapna Somasundaran
LREC/COLING3
2024 When Argumentation Meets Cohesion: Enhancing Automatic Feedback in Student Writing
abstract
In this paper, we investigate the role of arguments in the automatic scoring of cohesion in argumentative essays. The feature analysis reveals that in argumentative essays, the lexical cohesion between claims is more important to the overall cohesion, while the evidence is expected to be diverse and divergent. Our results show that combining features related to argument segments and cohesion features improves the performance of the automatic cohesion scoring model trained on a transformer. The cohesion score is also learned more accurately in a multi-task learning process by adding the automatic segmentation of argumentative elements as an auxiliary task. Our findings contribute to both the understanding of cohesion in argumentative writing and the development of automatic feedback.
Omid Kashefi, Swapna Somasundaran, Andrea Horbach
LREC/COLING3
2020 Two-Level Transformer and Auxiliary Coherence Modeling for Improved Text Segmentation
abstract
Breaking down the structure of long texts into semantically coherent segments makes the texts more readable and supports downstream applications like summarization and retrieval. Starting from an apparent link between text coherence and segmentation, we introduce a novel supervised model for text segmentation with simple but explicit coherence modeling. Our model – a neural architecture consisting of two hierarchically connected Transformer networks – is a multi-task learning model that couples the sentence-level segmentation objective with the coherence objective that differentiates correct sequences of sentences from corrupt ones. The proposed model, dubbed Coherence-Aware Text Segmentation (CATS), yields state-of-the-art segmentation performance on a collection of benchmark datasets. Furthermore, by coupling CATS with cross-lingual word embeddings, we demonstrate its effectiveness in zero-shot language transfer: it can successfully segment texts in languages unseen in training.
Goran Glavas, Swapna Somasundaran
AAAI2
2018 Towards Evaluating Narrative Quality In Student Writing
abstract
This work lays the foundation for automated assessments of narrative quality in student writing. We first manually score essays for narrative-relevant traits and sub-traits, and measure inter-annotator agreement. We then explore linguistic features that are indicative of good narrative writing and use them to build an automated scoring system. Experiments show that our features are more effective in scoring specific aspects of narrative quality than a state-of-the-art feature set.
Swapna Somasundaran, Michael Flor, Martin Chodorow, Hillary Molloy, Binod Gyawali, Laura McCulla
Trans. Assoc. Comput. Linguistics1
2016 Evaluating Argumentative and Narrative Essays using Graphs
abstract
This work investigates whether the development of ideas in writing can be captured by graph properties derived from the text. Focusing on student essays, we represent the essay as a graph, and encode a variety of graph properties including PageRank as features for modeling essay scores related to quality of development. We demonstrate that our approach improves on a state-of-the-art system on the task of holistic scoring of persuasive essays and on the task of scoring narrative essays along the development dimension.
Swapna Somasundaran, Brian Riordan 0001, Binod Gyawali, Su-Youn Yoon
COLING1
2015 Utilizing multimodal cues to automatically evaluate public speaking performance
abstract
Public speaking, an important type of oral communication, is critical to success in both learning and career development. However, there is a lack of tools to efficiently and economically evaluate presenters' verbal and nonverbal behaviors. The recent advancements in automated scoring and multimodal sensing technologies may address this issue. We report a study on the development of an automated scoring model for public speaking performance using multimodal cues. A multimodal presentation corpus containing 14 subjects' 56 presentations has been recorded using a Microsoft Kinect depth camera. Task design, rubric development, and human rating were conducted according to standards in educational assessment. A rich set of multimodal features has been extracted from head poses, eye gazes, facial expressions, motion traces, speech signal, and transcripts. The model building experiment shows that jointly using both lexical/speech and visual features achieves more accurate scoring, which suggests the feasibility of using multimodal technologies in the assessment of public speaking skills.
Lei Chen 0004, Chee Wee Leong, Gary Feng, Chong Min Lee, Swapna Somasundaran
ACII5
2014 Lexical Chaining for Measuring Discourse Coherence Quality in Test-taker Essays
Swapna Somasundaran, Jill Burstein, Martin Chodorow
COLING1
2012 ERD-MedLDA: Entity relation detection using supervised topic models with maximum margin learning
abstract
Abstract This paper proposes a novel application of topic models to do entity relation detection (ERD). In order to make use of the latent semantics of text, we formulate the task of relation detection as a topic modeling problem. The motivation is to find underlying topics that are indicative of relations between named entities (NEs). Our approach considers pairs of NEs and features associated with them as mini documents, and aims to utilize the underlying topic distributions as indicators for the types of relations that may exist between the NE pair. Our system, ERD-MedLDA, adapts Maximum Entropy Discriminant Latent Dirichlet Allocation (MedLDA) with mixed membership for relation detection. By using supervision, ERD-MedLDA is able to learn topic distributions indicative of relation types. Further, ERD-MedLDA is a topic model that combines the benefits of both, maximum likelihood estimation (MLE) and maximum margin estimation (MME), and the mixed-membership formulation enables the system to incorporate heterogeneous features. We incorporate different features into the system and perform experiments on the ACE 2005 corpus. Our approach achieves better overall performance for precision, recall, and F-measure metrics as compared to baseline SVM-based and LDA-based models. We also find that our system shows better and consistent improvements with the addition of complex informative features as compared to baseline systems.
Dingcheng Li, Swapna Somasundaran, Amit Chakraborty
Nat. Lang. Eng.2
2009 Recognizing Stances in Online Debates
Swapna Somasundaran, Janyce Wiebe
ACL/IJCNLP1
2009 Supervised and Unsupervised Methods in Employing Discourse Relations for Improving Opinion Polarity Classification
Swapna Somasundaran, Galileo Namata, Janyce Wiebe, Lise Getoor
EMNLP1
2008 Discourse Level Opinion Interpretation
Swapna Somasundaran, Janyce Wiebe, Josef Ruppenhofer
COLING1
2008 Finding the Sources and Targets of Subjective Expressions
Josef Ruppenhofer, Swapna Somasundaran, Janyce Wiebe
LREC2
2007 QA with Attitude: Exploiting Opinion Type Analysis for Improving Question Answering in On-line Discussions and the News
Swapna Somasundaran, Theresa Wilson, Janyce Wiebe, Veselin Stoyanov
ICWSM1