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Heeyoung Kwon

dblp:169/9106 · DBLP profile ↗
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5ranked-venue papers
2as first author
0since 2021 · last 2020
—ORCID · none

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

Artificial intelligence and machine learning · 3Databases, data management, data science and information retrieval · 2 · 2 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
2 papers
Information extraction and text analysis · 57% Language models and text generation · 36% Knowledge representation and reasoning · 6%

Topics — the 3 heaviest of 4, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Natural language and speech › Information extraction and text analysis
emotion recognition
0.412020
Modeling Label Semantics for Predicting Emotional Reactions · ACL 2020
Natural language and speech › Information extraction and text analysis
semantic role labeling
0.212016
Cross Sentence Inference for Process Knowledge · EMNLP 2016
Knowledge, reasoning and agents › Knowledge representation and reasoning
process knowledge
0.112016
Cross Sentence Inference for Process Knowledge · EMNLP 2016

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

semi-supervised learning · 0.4label embedding · 0.4joint inference · 0.2integer linear programming · 0.2
YearPublicationVenuePosition
2020 Modeling Label Semantics for Predicting Emotional Reactions
abstract
Predicting how events induce emotions in the characters of a story is typically seen as a standard multi-label classification task, which usually treats labels as anonymous classes to predict.They ignore information that may be conveyed by the emotion labels themselves.We propose that the semantics of emotion labels can guide a model's attention when representing the input story.Further, we observe that the emotions evoked by an event are often related: an event that evokes joy is unlikely to also evoke sadness.In this work, we explicitly model label classes via label embeddings, and add mechanisms that track label-label correlations both during training and inference.We also introduce a new semi-supervision strategy that regularizes for the correlations on unlabeled data.Our empirical evaluations show that modeling label semantics yields consistent benefits, and we advance the state-of-theart on an emotion inference task.
Radhika Gaonkar, Heeyoung Kwon, Mohadeseh Bastan, Niranjan Balasubramanian, Nathanael Chambers
ACL2
2020 Generating Narrative Text in a Switching Dynamical System
abstract
Early work on narrative modeling used explicit plans and goals to generate stories, but the language generation itself was restricted and inflexible.Modern methods use language models for more robust generation, but often lack an explicit representation of the scaffolding and dynamics that guide a coherent narrative.This paper introduces a new model that integrates explicit narrative structure with neural language models, formalizing narrative modeling as a Switching Linear Dynamical System (SLDS).A SLDS is a dynamical system in which the latent dynamics of the system (i.e.how the state vector transforms over time) is controlled by top-level discrete switching variables.The switching variables represent narrative structure (e.g., sentiment or discourse states), while the latent state vector encodes information on the current state of the narrative.This probabilistic formulation allows us to control generation, and can be learned in a semi-supervised fashion using both labeled and unlabeled data.Additionally, we derive a Gibbs sampler for our model that can "fill in" arbitrary parts of the narrative, guided by the switching variables.Our filled-in (English language) narratives outperform several baselines on both automatic and human evaluations.
Noah Weber, Leena Shekhar, Heeyoung Kwon, Niranjan Balasubramanian, Nathanael Chambers
CoNLL3
2018 Controlling Information Aggregation for Complex Question Answering
Heeyoung Kwon, Harsh Trivedi, Peter A. Jansen, Mihai Surdeanu, Niranjan Balasubramanian
ECIR1
2017 A Domain-Agnostic Approach to Spam-URL Detection via Redirects
Heeyoung Kwon, Mirza Basim Baig, Leman Akoglu
PAKDD (2)1
2016 Cross Sentence Inference for Process Knowledge
abstract
For AI systems to reason about real world situations, they need to recognize which processes are at play and which entities play key roles in them.Our goal is to extract this kind of rolebased knowledge about processes, from multiple sentence-level descriptions.This knowledge is hard to acquire; while semantic role labeling (SRL) systems can extract sentence level role information about individual mentions of a process, their results are often noisy and they do not attempt create a globally consistent characterization of a process.To overcome this, we extend standard within sentence joint inference to inference across multiple sentences.This cross sentence inference promotes role assignments that are compatible across different descriptions of the same process.When formulated as an Integer Linear Program, this leads to improvements over within-sentence inference by nearly 3% in F1.The resulting role-based knowledge is of high quality (with a F1 of nearly 82).
Samuel Louvan, Chetan Naik, Sadhana Kumaravel, Heeyoung Kwon, Niranjan Balasubramanian, Peter Clark
EMNLP4