1 code implementation • 27 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.
no code implementations • 18 Nov 2023 • Doyoung Kim, Susik Yoon, Dongmin Park, YoungJun Lee, Hwanjun Song, Jihwan Bang, Jae-Gil Lee
We identify the inadequacy of universal and specific prompting in handling these dynamic shifts.
1 code implementation • 8 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.
1 code implementation • 4 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.
1 code implementation • 10 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.
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.
no code implementations • 18 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.
1 code implementation • 9 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.
no code implementations • 18 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.
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.
no code implementations • 23 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.