The 28th International Conference on Industrial, Engineering & Other Applications of

Applied Intelligent Systems (IEA/AIE 2015)

Charissa Ann Ronaocvronao@sclab.yonsei.ac.kr

S FT COMPUTING @ YONSEI UNIV . KOREA16

Conference Information

• Conference Date– June 10 – 12, 2015

• Conference Venue– COEX, Seoul, South Korea

2

S FT COMPUTING @ YONSEI UNIV . KOREA16

Paper Presentation

• Paper Title:– “Mining SQL Queries to Detect Anomalous Database Access us-

ing Random Forest and PCA”• Schedule

– June 10, 2015– Session 2B: Knowledge-Based Systems (2)– Session Chair: Franz Wotawa

3

견모

S FT COMPUTING @ YONSEI UNIV . KOREA16

Paper Presentation

• Q&A– Kindy explain the whole intrusion detection system briefly.

• Provided a brief explanation using the system architecture slide

– How did you choose the features to extract?• We gathered features from existing literature, combined all of them, and

added some of our own

– Is it supervised learning or unsupervised learning?• We built the system with insider threats in mind, so it is supervised learning

4

견모

S FT COMPUTING @ YONSEI UNIV . KOREA16

Conference Paper 1• “Ensemble Algorithms for Unsupervised Anomaly Detection”

• Main Purpose– A particular algorithm may be well-suited to one data set but

ineffective to others– Classical bias-variance dilemma– Both can be alleviated by using ensemble methods

• Method– Ensemble algorithms– Second algorithm builds upon the findings of the first algorithm

• Experiments– Three datasets– Either LOF or COF followed by RADA achieve very good perfor-

mance in most cases– Anomaly detection using a subset of the given dataset, that is

suspected to contain all anomalies, is better

5

S FT COMPUTING @ YONSEI UNIV . KOREA16

Conference Review

• Venue– The place is easy to get to since it is in Seoul

• Conference– The conference is well-organized, as compared to the first con-

ference I have attended– Professional-looking venue, with tools/devices well-provided for– The conference catered a range of topics that is too broad– This resulted in some very hard to understand presentations by

people not from the artificial intelligence field• Oral Session

– The chair during my session was very responsible with time and has a pleasant disposition that encourages questions

– Easy-to-understand presentations attract more questions from the audience than long, very complicated ones

– In some sessions, the people in the audience are few• Might be related to the MERS scare

• During lunch, there was a wide variety of food selections, from Korean, French, to western, and they were delicious 6

S FT COMPUTING @ YONSEI UNIV . KOREA16

Conference Review

• Food and Banquet– During lunch, there was a wide variety

of food selections, from Korean, French, to western, and they were delicious

– Was not able to attend the banquet (because of my thesis and another conference shortly after)

• People– Met a girl from Syracuse University who is doing unsupervised

intrusion detection– Professor Jae Oh of Syracuse University asked if Professor Cho

will come

7

S FT COMPUTING @ YONSEI UNIV . KOREA16

Miscellaneous: Conference Tour

• Tour A– Changdeokgung Palace

and Secret Garden (Biwon)– Limited to 40 people

• Tour B– Gyeongbokgung Palace– National Folk Museum– Insadong

• Did not go; visited all of the places already

8