Big Data & AI Convergence System (DACS) Lab

Messages

• 본 연구실에서는 빅데이터 기반 인텔리전스 (분석, 예측, 추천) 기술 및 빅데이터 처리 시스템의 성능 개선에 대한 연구를 수행하고 있습니다.  본 연구실의 주요 연구 분야는 데이터 사이언스, 빅데이터 처리 및 분석, 데이터베이스, 데이터마이닝, 텍스트 마이닝, 머신 러닝, 딥 러닝 등 데이터 및 AI를 기반으로 하는 컴퓨터 과학 및 관련 전 분야를 포함합니다. 현재 LG전자, 대우조선해양(DSME), 한국전자통신연구원(ETRI), 서울대학교 보건환경연구소, 칠곡경북대병원, 경북대학교 약학대학 등과 다양한 산학, 위탁, 공동 연구과제를 수행하고 있습니다.  

• 본 연구실에서 성실히 연구할 대학원생 (박사과정, 석사과정, 석박사 통합과정)을 모집하고 있습니다. 관심 있는 학생은 언제든지 지도 교수에게 이메일 또는 연구실로 직접 방문해 주시기 바랍니다.

• 본 연구실에서는 현재 우수한 포스닥(Post. Doc.)을 모집하고 있습니다. 모집 분야는 IoT 데이터 처리 및 분석이나 엄격한 제한은 없습니다. 관심 있는 포스닥은 CV와 함께 이메일로 지도 교수에게 문의 주기 바랍니다. (We're currently seeking a strong Post-Doc to join our lab. Research areas include IoT data processing and analytics, but are not limited. For those who are interested in the opening, feel free to email Prof. Suh with your CV.)

• 본 연구실에서는 수행 중인 연구 과제를 함께 할 현재 학부연구생(3학년 이상)을 모집하고 있습니다. 모집 분야는 1) IoT 데이터 검색, 처리 및 분석, 2) Twitter 데이터 분석, 3) 쿠버네티스 기반 AutoML 프레임워크 구축, 4) 컨테이너 기반 스토리지 가상화 및 증강 기술 개발, 5) Natural-to-SQL 엔진 개발 등입니다. 관심 있는 학부생은 성적표와 간략한 프로젝트 경험 기술서와 함께 이메일로 지도 교수에게 문의 주기 바랍니다. 

Research Interests

News

• (NEW) Our paper, entitled "K-RAF: A Kubernetes-based Resource Augmentation Framework for Edge Devices," has been accepted in the 33rd International Symposium on High-Performance Parallel and Distributed Computing (HPDC'24) (BKCS 우수학술대회, 인정IF2) (04/12/2024)! Congratulations to Youngwoo, Jiseob, and Soonbum! 

• (NEW) Our paper, entitled "Battery State of Health Estimation from Discharge Voltage Segments using an Artificial Neural Network," has been published in the International Journal of Precision Engineering and Manufacturing-Green Technology (SCIE, Q1) (03/23/2024)! 

• (NEW) Our paper, entitled "A Trie-based IoT Data Indexing Scheme Utilizing Temporal Prefixes," has been published in the Journal of KIISE (KCI) (03/15/2024)! Congratulations to Jooyoung and Soonbum! 

• (NEW) Our domestic patent, entitled "Apparatus and method for classifying breathing state during sleep using biosignals," has been finally approved and registered! Congratulations to Seoyoung and Daewoong (03/05/2024)!

• (NEW) A total of 6 (!!!) master's students (Jooyoung, Jisoo, Soonbeom, Lasse, Hwanseong, Cheongu) have joined our lab. WOW! Welcome aboard! (03/01/2024)! 

• Our paper, entitled "Identifying the Root Causes of DBMS Suboptimality," has been published in ACM Transactions on Database Systems (SCIE) (02/28/2024)! 

• Our paper, "Understanding File System Operations of a Secure Container Runtime Using System Call Tracing Technique," has been published in IEICE Trans. on Info. & Syst. (SCIE)  (02/01/2024)! 

• Cheongu Kim (김천구) has joined as an undergraduate intern. Welcome aboard (01/01/2024)! 

• Our paper, "Sleep Apnea Classification using Time-Series Data Image Transformation Algorithm," received the Best Paper Award at KSC'23!

• Prof. Suh has earned a 12-month grant from LG Electronics (12/01/2023).

• Our paper, "Multi-Query Latency Optimization by Resource-Aware Task Placement in Fog," has been accepted into ACM SAC 2024 (BKCS우수학술대회, IF1)  (11/24/2023)! 

• Soonbeom Kwon (권순범) has joined as an undergraduate intern. Welcome aboard (09/01/2023)! 

• Gyujin Jin (진규진) and Jialun Jung have just joined our group as a master's student. Welcome to our lab (09/01/2023)! 

• Youngwoo will have been awarded a Student Travel Grant in IEEE SECON'23 (08/13/23)! Congratulations to Youngwoo! 

• Our paper, entitled "A Resource Provisioning Manager for Edge Devices," has been accepted in the Poster track of the 2023 20th Annual IEEE International Conference on Sensing, Communication, and Networking (SECON) technical program (07/01/2023)! Congratulations to Youngwoo! 

• Jisu Lee (이지수) and Lasse (라스) Jantsch have joined as undergraduate interns. Welcome aboard (07/01/2023)! 

• Our MS graduates are employed by KISTI and LG Electronics, respectively (07/01/2023). Congratulations to Daewoong and Seoyoung! 

• Our paper, entitled "Exploring Factors Impacting Data Offloading Performance in Edge and Cloud Environments," has been accepted in the Poster and Demo Track of Euro-Par 2023 (06/30/2023)! Congratulations to Youngwoo and Harin! 

• Our paper, entitled "ECM: An Energy-efficient HVAC Control Framework for Stable Construction Environment," has been accepted in the Full papers track of the 2023 20th Annual IEEE International Conference on Sensing, Communication, and Networking (SECON) technical program (BKCS 우수학술대회, IF1) (06/01/2023)! Congratulations to Jin-Sung, Youngeun, and Harin! 

• Prof. Suh received an Outstanding Teaching Award from the university.  [Related News] (05/19/2023) Congratulations to Prof. Suh!

• Our paper, entitled "A Two-Phase Dynamic Topic Modeling Analysis of COVID-19 Vaccine Discourse in Korean Twitter," has been published at DataBase Research (DBR) (KCI) (04/30/2023)! Congratulations to Harin! 

• Our paper, entitled "A Deep Neural Network Based Wake-After-Sleep-Onset Time Aware Sleep Apnea Severity Estimation Scheme Using Single-lead ECG Data," has been accepted into IEEE Access (SCIE, IF = 3.476) (04/18/2023)! Congratulations to Daewoong! 

• Yoosoo Noh (노유수) joined as an undergraduate intern student. Welcome aboard (04/01/2023)! 

• Prof. Suh has earned an eight-month grant from Daewoo Shipbuilding & Marine Engineering Co., Ltd (04/01/2023).

• Prof. Suh has earned an eight-month grant from ETRI (04/01/2023).

• Our paper, entitled "An Annotated PubMed Corpus to Support Supervised Relation Extraction between Suicide-Related Entities and Drugs," has been published in Journal of Medical Internet Research (JMIR) (SCIE, IF = 7.4, JCR top 2.4%) (03/08/2023)! Congratulations to Karina! 

• Jooyong Yoon (윤주영) joined as a BS-MS integrated course student. Welcome aboard (03/01/2023)! 

• Youngwoo Jang (장영우) has just joined our group as a master's student. Welcome to our lab (03/01/2023)! 

• Youngeun Chae (채영은) has just graduated. Congratulations (02/17/2023)! We wish you all the best of luck!

• Jiseop Byung (변지섭) and Meeju Kim (김미주) have recently joined the lab as undergraduate research interns. Welcome aboard (02/13/2023)!

• Our paper, entitled "A Comprehensive Analysis of COVID-19 Vaccine Discourse by Vaccine Brand on Korean Twitter: Topic and Sentiment Analysis," has been published in Journal of Medical Internet Research (JMIR) (SCIE, IF = 7.4, JCR top 2.4%) (01/31/2023)! 

• Jaewan Seo (서재완), Gyuwon Jung (정규원), and Joon Choi (최 준) have recently joined the lab as undergraduate research interns. Welcome aboard (01/12/2023)!

• Jaeseong ('22 MS graduate) will join LG Electronics next January (12/15/2022)! Congratulations to Jaeseong! 

• Youngeun has successfully defended her Master's thesis. Congratulations (12/02/2022)!

• Jaeseong, Daewoong, Junyoung, and Harin just graduated. Congratulations to all (08/19/2022)! We wish you all the best of luck!

• Junyoung received the Outstanding Master's Thesis Award. Congratulations to Junyoung (07/27/2022)!

• Saebom Lee (이새봄, 학부 4학년), Jihyun Oh (오지현, 통계/비즈니스융합전공 4학년), and Songbaek Lee (이송백, 학부 2학년) joined our lab as an undergraduate research intern. Welcome aboard (July 2022)!

• Prof. Suh successfully presented our paper at SIGMETRICS 2022 (06/10/2022)!

• Jaeseong, Daewoong, and Junyoung have successfully defended their Master's theses. Congratulations to you guys (05/26/2022, 05/27/2022)!

• Our paper, entitled "Workload-driven Analysis on the Performance Characteristics of GPU-accelerated DBMSes," has been accepted into IEICE Trans. on Info. & Syst. (SCIE).  Congratulations to Junyoung  (04/21/2022)!

• Prof. Suh has just earned a six-month grant entitled "Research on a Data-Driven Platform for Energy-Efficient, Autonomous Control of Multi Air Compressors" from Daewoo Shipbuilding & Marine Engineering Co., Ltd (04/01/2022).

• Prof. Suh earned an eight-month grant entitled "Research on Container-based Virtualization Technology for Storage Augmentation" from ETRI (04/01/2022).

• Karina has just graduated. Congratulations (02/18/2022)! She will continue to pursue a Ph.D. degree in our lab!

• Our paper has been accepted into SIGMETRICS/Performance 2022 (BK21+ CS top-tier conf., 인정IF 3) (01/12/2022)!

• Prof. Suh (with Prof. Tak and our first graduate, Seounghyun) has received the Outstanding (Journal) Paper Award at KSC'21 (12/21/2021)!

• Youngeun et al. have been awarded the Best Paper Award at KSC'21. Congratulations to Youngeun, Jaeseong, and Jin-Sung (12/21/2021)!

• Karina has successfully defended her Master's thesis. Congratulations to Karina (12/02/2021)!

• Harin Seo (서하린, 학부 4학년) has joined our lab as a BS-MS integrated student. Welcome aboard (12/01/2021)!

• Subin Kwon (권수빈, 학부 4학년) has joined our lab as an undergraduate intern and a BS-MS integrated student. Welcome aboard (12/01/2021)!

• Jaehwa Park (박재화, 학부 4학년) and Myungjoo Ok (옥명주, 학부 3학년) have joined our lab as undergraduate interns. Welcome aboard (10/01/2021)!

• Prof. Suh has just earned a six-month grant (₩38,500,000) entitled "Research on Data- and AI-Driven Autonomous Control System for Energy-Efficient CCS Environment" from Daewoo Shipbuilding & Marine Engineering Co., Ltd (09/01/2021).

• Seoyoung Kim and Hawon Chu have just graduated. Congratulations to both (08/20/2021)! We wish you all the best of luck!

• Our paper, entitled "Have Query Optimizers Hit the Wall?" has been accepted at The VLDB Journal (SCIE: Top Journal in Databases) (07/12/2021)!

• Seoyoung Kim has successfully defended her Master's thesis. Congratulations to Seo-Young (06/04/2021)!

• Prof. Suh has just earned a four-year grant (totaling ₩308,000,000), entitled "Research on High-Performance Spatio-Temporal IoT Data Management and Intelligence Engine Technology," from NRF (06/01/2021).

• Prof. Suh has just earned a six-month grant (₩45,000,000), entitled "Research on Data Management Model for Efficient Offloading between Embedded Devices and Virtualized Platform in Massive Internet-of-Things Environment," from ETRI (06/01/2021).

• Hawon Chu has successfully defended his Master's thesis. Congratulations to Hawon (05/31/2021)!

• Three papers have been accepted into KCC 2021! Congrats to Daewoong, Karina, and Jeongseok (05/31/2021)!

• Our paper, entitled "A Survey of Industrial Internet-of-Things Platforms for Establishing Centralized Data Acquisition Middleware: Categorization, Experiment, and Challenge," has been accepted at Scientific Programming (SCIE). Congratulations to Jin-Sung (04/16/2021)!

• Our lab has just started a research collaboration with Prof. Jinwon Kwon's lab in the College of Pharmacy for the purpose of exploring unreported side effects on drugs and medicine from big social data like Twitter (04/01/2021).

• Prof. Suh just has earned a six-month grant, entitled "A Study on the Energy-Efficient Optimal Environmental Control Model for a Cargo Hold under Construction," from Daewoo Shipbuilding & Marine Engineering Co., Ltd (03/01/2021).

• Youngeun Chae(채영은) has just joined our group as a master's student. Welcome to our lab (03/01/2021)! 

• Sangmin Lee (이상민) will join our lab as an undergraduate intern (03/01/2021). Welcome to our lab!

• Joo-Young Lee just graduated (02/19/2021). He's still on the job market. Congrats to Joo-Young!

• Jeongseok Oh (오정석) joined our lab as an undergraduate intern (02/01/2021). Welcome to our lab!

• Jaeseong et al. have earned the Outstanding Paper Award (우수논문상) and Best Paper Award (최우수논문상) in the IoT Section at KSC 2020 at the same time. Well deserved, yah! Congratulations to Jaeseong and others (12/17/2020, 12/22/2020)!

• Our paper, entitled "A Trie-based Indexing Scheme for Efficient Retrieval over a Large Volume of Spatiotemporal IoT Sensor Data (방대한 시공간 사물 데이터의 효율적인 검색을 위한 트라이 기반 색인 방법)," has been published at Journal of KIISE: Databases (KCI). Congratulations to Hawon (12/15/2020)!

• Our lab manager, Joo-Young Lee has successfully defended his Master's thesis. Congratulations to Joo-Young (12/04/2020)!

• Our paper, entitled "CLUTCH: A Clustering-Driven Runtime Estimation Scheme for Scientific Simulations," has been accepted into IEEE Access (SCIE) (11/26/2020)!

• Our paper has just been accepted into KSC 2020! It will appear in the ORAL session. Congratulations to Jaeseong and others (11/24/2020)!

• Our paper, entitled "ST-Trie: A Novel Indexing Scheme for Efficiently Querying Heterogeneous, Spatiotemporal IoT Data," has been accepted into Sustainability (SCIE). Congratulations to all the authors, Hawon, Jaeseong, and Seounghyeon (11/20/2020)!

• Joo-Young Lee, Jun Young An, Jae Seong Kim, and Seo-Young Kim were awarded the Best Paper Award (Bronze Prize) at KDBC 2020! Congratulations to you guys and thanks for your hard work (09/24/2020)! You guys deserve it!!!

• Our paper, entitled "An Experimental Study Across GPU DBMSes Toward Cost-Effective Analytical Processing," has been accepted by IEICE Trans. on Info. & Syst. (SCIE). Congratulations to all the authors, Seounghyeon, Hawon, Joo-Young, and Junyoung (09/11/2020)!

• A total of FOUR papers got accepted into KDBC 2020 (09/04/2020)! All of them will appear in the ORAL session. Congratulations to all the authors!

• Junyoung An has just joined as a Master's student. Welcome to our lab (09/01/2020)! 

• Seounghyeon Kim just graduated (08/22/2020). He will be a Staff member at Samsung Research in Seoul. Congrats to Seounghyeon!

• Seounghyeon Kim was awarded KNU-CSE Thesis Award (Master's Thesis) (Prize: ₩1,000,000) by the Graduate School of Computer Science and Engineering at Kyungpook National University. Congratulations to Seounghyeon (08/11/2020)!

• Our paper, entitled "A Literature Survey of Machine Learning-Based Obstructive Sleep Apnea Diagnosis Research," has been published in the Journal of the Korea Society of Computer and Information (KCI). Congratulations to Seo-Young (08/05/2020)!

• Yunha Cho (조윤하, 글솝 3학년) and Seungdeok Jung (정승덕, 전자공학부 3학년) have just joined as undergraduate intern. Welcome to our lab (08/01/2020)! 

• A total of 4 papers have been accepted for oral and poster presentation at Korea Computer Congress (한국컴퓨터종합학술대회) 2020, Busan. Congrats to all the authors and many thanks for your hard work!

• Our paper, entitled "Empirical Evaluation Across Multiple GPU-accelerated DBMSes" got accepted into the 16th International Workshop on Data Management on New Hardware (DaMoN'20) (Held with ACM SIGMOD/PODS 2020). Congratulations to Hawon, Seounghyeon, and Joo-Young  (04/24/2020)!

• Our paper, entitled "A Recommendation Scheme for an Optimal Pre-processing Permutation Towards High-Quality Big Data Analytics (고품질 빅데이터 분석을 위한 최적의 전처리 순열 추천 방법)" has been published at Journal of KIISE (KCI). Congratulations to Seounghyeon (03/15/2020)!

• Karina Karapetian (from Russia), Daewoong Seo (서대웅), and Jaesung Kim (김재성) have joined our group as master's students. Welcome to our lab (03/01/2020)! 

• Prof. Suh has just earned an 8-month grant, entitled "Development of Heterogenous Spatiotemporal IoT Data Retrieval and Summary-Data Generation Technology," from Korea Institute of Science and Technology Information (KISTI) (02/20/2020)!

• Junyoung Ahn (안준영, 학부 4학년) has joined as an undergraduate intern. Welcome to our lab (02/17/2020)! 

• Somin Song (송소민, 학부 3학년) has joined as an undergraduate intern. Welcome to our lab (11/01/2019)! 

• Seounghyeon Kim was awarded the Outstanding Research Award (Prize: ₩2,000,000) by the Graduate School of Computer Science and Engineering at Kyungpook National University! Congratulations to Seounghyeon!

• Seounghyeon Kim was awarded Silver Prize at KDBC 2019! Congratulations to Seounghyeon!

• Joo-Young Lee was elected as the new lab manager. Thank you for your service (09/01/2019)! 

• Hawon Chu (추하원) has just joined as a Master's student. Welcome to our lab (09/01/2019)! 

• Our paper, entitled "FLASHer: A Novel Clustering-Based Scheme for Deduplicating a Large Amount of News Articles with Similar Topics," has been published in DataBase Research (KCI). Congratulations to Joo-Young (08/31/2019).

• Our paper, entitled "EXTES: An Execution-Time Estimation Scheme for Efficient Computational Science and Engineering Simulation via Machine Learning," has been published in IEEE Access (SCIE: IF 4.098, Q1) (07/10/2019).

• A total of 5 papers have been accepted for oral and poster presentation at Korea Computer Congress (KCC, 한국컴퓨터종합학술대회) 2019, Jeju. Congrats to all lab members and many thanks for your hard work!

• Our paper, entitled "An ML-based Execution Time Estimation Method for Efficiency of Computational Science and Engineering Simulation," has been published in DataBase Research (KCI). Congratulations to Seounghyeon (04/30/2019).

• Joo-Young Lee and Seoyoung Kim (김서영) have joined our group as master's students. Welcome to our lab (03/01/2019)! 

• Our paper, entitled "Improving the I/O efficiency in Hadoop-based Massive Data Analysis" has been accepted for publication in Scientific Programming (SCIE: IF 1.344, Q2) (11/07/2018).

• Seounghyeon Kim (and two other teammates) was ranked in 20th place in the 19th ACM International Collegiate Programming Contest (ICPC) Seoul Regional. Congratulations to Seounghyeon (11/03/2018)!

• Prof. Suh earned a five-month grant, entitled "Research on Big Data Analytics System," from Cretec Chegim, a local company (10/22/2018).

• Our two papers were accepted by Korea DataBase Conference 2018 (10/12/2018). Congratulations to Seounghyeon Kim and Joo-Young Lee! Good luck with your presentation on 10/19/2018!

• Seounghyeon Kim (김성현), the first lab manager at DEAL lab, has just joined our group as a master's and the first student. Welcome to our lab (09/01/2018)! 

• Our paper, entitled "A Survey of Simulation Provenance Systems: Modeling, Capturing, Querying, Visualization, and Advanced Utilization" has been accepted for publication in Human-centric Computing and Information Sciences (HCIS) (SCIE: IF 1.967, Q2) (08/26/2018).

• Our lab has been successfully relocated to two places: Room #520 (director) / #522 (students) in IT-5 (IT대학 융복합관). Please come and see us!

• Our paper, entitled "A Simulation-Provenance Data Management System for Efficient Job Execution on an Online Computational Science Engineering Platform" has been accepted for publication in Cluster Computing (SCI: IF 1.601, Q2) (07/05/2018).

• Joo-Young Lee (이주영) has just joined as an undergraduate intern. Welcome to our lab (05/04/2018)! 

• Our paper, entitled "A Pattern-Based Outlier Region Detection Method for 2-Dimensional Arrays" has been accepted for publication in The Journal of Supercomputing (SCI: IF 1.532, Q2) (05/09/2018)

• Our paper, entitled "MLPPI Wizard: An Automated Multi-level Partitioning Tool on Analytical Workloads," has been published online at KSII Transactions on Internet and Information Systems (SCIE) (04/30/2018).

• Our paper, entitled "Design and Implementation of an Execution-Provenance Based Simulation Data Management Framework for Computational Science Engineering Simulation Platform," has been published in the Journal of Internet Computing and Services (KCI) (02/28/2018).

• Prof. Suh earned a three-year grant (for new researchers), entitled "An Integrated Framework for Empirical Studies across Multiple Data-Intensive Systems", from National Research Foundation of Korea (acceptance ratio: 22%) (02/23/2018)

• Our paper, entitled "SEDONA: A Novel Protocol for Identifying Infrequent, Long-running Daemons on a Linux System," has been published at IEICE Transactions on Information Systems (SCIE) (01/01/2018). 

• DAC Lab was founded by Prof. Suh (09/01/2017). Yah!