Search Results for author: Susik Yoon

Found 11 papers, 6 papers with code

SCStory: Self-supervised and Continual Online Story Discovery

1 code implementation27 Nov 2023 Susik Yoon, Yu Meng, Dongha Lee, Jiawei Han

With a lightweight hierarchical embedding module that first learns sentence representations and then article representations, SCStory identifies story-relevant information of news articles and uses them to discover stories.

Continual Learning Contrastive Learning +1

Unsupervised Story Discovery from Continuous News Streams via Scalable Thematic Embedding

1 code implementation8 Apr 2023 Susik Yoon, Dongha Lee, Yunyi Zhang, Jiawei Han

Unsupervised discovery of stories with correlated news articles in real-time helps people digest massive news streams without expensive human annotations.

Sentence

MEGClass: Extremely Weakly Supervised Text Classification via Mutually-Enhancing Text Granularities

1 code implementation4 Apr 2023 Priyanka Kargupta, Tanay Komarlu, Susik Yoon, Xuan Wang, Jiawei Han

By preserving the heterogeneity of potential classes, MEGClass can select the most informative class-indicative documents as iterative feedback to enhance the initial word-based class representations and ultimately fine-tune a pre-trained text classifier.

text-classification Text Classification

PDSum: Prototype-driven Continuous Summarization of Evolving Multi-document Sets Stream

1 code implementation10 Feb 2023 Susik Yoon, Hou Pong Chan, Jiawei Han

Summarizing text-rich documents has been long studied in the literature, but most of the existing efforts have been made to summarize a static and predefined multi-document set.

Document Summarization Multi-Document Summarization

MG-TAR: Multi-View Graph Convolutional Networks for Traffic Accident Risk Prediction

1 code implementation IEEE Transactions on Intelligent Transportation Systems 2023 Patara Trirat, Susik Yoon, Jae-Gil Lee

Due to the continuing colossal socio-economic losses caused by traffic accidents, it is of prime importance to precisely forecast the traffic accident risk to reduce future accidents.

Graph Learning TAR

Topic Taxonomy Expansion via Hierarchy-Aware Topic Phrase Generation

no code implementations18 Oct 2022 Dongha Lee, Jiaming Shen, Seonghyeon Lee, Susik Yoon, Hwanjo Yu, Jiawei Han

Topic taxonomies display hierarchical topic structures of a text corpus and provide topical knowledge to enhance various NLP applications.

Relation Taxonomy Expansion

Adaptive Model Pooling for Online Deep Anomaly Detection from a Complex Evolving Data Stream

1 code implementation9 Jun 2022 Susik Yoon, YoungJun Lee, Jae-Gil Lee, Byung Suk Lee

Online anomaly detection from a data stream is critical for the safety and security of many applications but is facing severe challenges due to complex and evolving data streams from IoT devices and cloud-based infrastructures.

Anomaly Detection

TaxoCom: Topic Taxonomy Completion with Hierarchical Discovery of Novel Topic Clusters

no code implementations18 Jan 2022 Dongha Lee, Jiaming Shen, SeongKu Kang, Susik Yoon, Jiawei Han, Hwanjo Yu

Topic taxonomies, which represent the latent topic (or category) structure of document collections, provide valuable knowledge of contents in many applications such as web search and information filtering.

Clustering Topic coverage

Coherence-based Label Propagation over Time Series for Accelerated Active Learning

no code implementations ICLR 2022 Yooju Shin, Susik Yoon, Sundong Kim, Hwanjun Song, Jae-Gil Lee, Byung Suk Lee

Time-series data are ubiquitous these days, but lack of the labels in time-series data is regarded as a hurdle for its broad applicability.

Active Learning Time Series +1

MLAT: Metric Learning for kNN in Streaming Time Series

no code implementations23 Oct 2019 Dongmin Park, Susik Yoon, Hwanjun Song, Jae-Gil Lee

Learning a good distance measure for distance-based classification in time series leads to significant performance improvement in many tasks.

Metric Learning Time Series +1

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