Search Results for author: Alex Sim

Found 7 papers, 0 papers with code

Feature Engineering and Classification Models for Partial Discharge in Power Transformers

no code implementations21 Oct 2022 Jonathan Wang, Kesheng Wu, Alex Sim, Seongwook Hwangbo

These features represent the entire signal and not just a single phase, so the feature set has a fixed size and is easily comprehensible.

Classification Feature Engineering

Extract Dynamic Information To Improve Time Series Modeling: a Case Study with Scientific Workflow

no code implementations19 May 2022 Jeeyung Kim, Mengtian Jin, Youkow Homma, Alex Sim, Wilko Kroeger, Kesheng Wu

In this work, we describe a number of techniques to extract dynamic information about the current state of a large scientific workflow, which could be generalized to other types of applications.

Time Series Time Series Analysis

Access Trends of In-network Cache for Scientific Data

no code implementations11 May 2022 Ruize Han, Alex Sim, Kesheng Wu, Inder Monga, Chin Guok, Frank Würthwein, Diego Davila, Justas Balcas, Harvey Newman

Our study shows that this distributed storage cache is able to reduce the network traffic volume by a factor of 2. 35 during a part of the study period.

Improving Botnet Detection with Recurrent Neural Network and Transfer Learning

no code implementations26 Apr 2021 Jeeyung Kim, Alex Sim, Jinoh Kim, Kesheng Wu, Jaegyoon Hahm

Botnet detection is a critical step in stopping the spread of botnets and preventing malicious activities.

Transfer Learning

Botnet Detection Using Recurrent Variational Autoencoder

no code implementations1 Apr 2020 Jeeyung Kim, Alex Sim, Jinoh Kim, Kesheng Wu

Botnets are increasingly used by malicious actors, creating increasing threat to a large number of internet users.

Line Detection

An Ensemble Approach toward Automated Variable Selection for Network Anomaly Detection

no code implementations28 Oct 2019 Makiya Nakashima, Alex Sim, Youngsoo Kim, Jonghyun Kim, Jinoh Kim

While variable selection is essential to optimize the learning complexity by prioritizing features, automating the selection process is preferred since it requires laborious efforts with intensive analysis otherwise.

Anomaly Detection Variable Selection

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