PRML RESEARCH @ UNIVERSITY OF OTAGO

A/Prof. Jeremiah Deng

Dept. of Information Science / Telecommunications ProgrammeUniversity of Otago, Dunedin 9054, New Zealand

UNIVERSITY OF OTAGO

“Dare to be wise”

First university in New Zealand (since 1860)

One of top research universities

Ranked 13x /15x by QS in recent years

CS/IS ranked 101-150th worldwide

International faculty

Vibrant research culture

Colourful student life

STUDENT ACHIEVEMENTS

Otago has produced 62 Rhodes Scholars since 1904.

The Otago University Rugby Football Club has produced more All Blacks than any other New Zealand rugby club.

Otago has won the New Zealand Universities Rowing Championships the past 15 years in a row.

PRML - THE TEAM

PRML SNAPSHOT I:SCENE ANALYSIS AND NOVELTY DETECTION (PHD WORK BY VIVIAN YONG)

FrameworkWorkaround the challenges of object recognitionLabel over-segmented imagesModel the cooccurrence of labels in neighbourhoodNovelty detection from a simple MoG criterion using Mahalanobis metric

PRML SNAPSHOT 1I:EVENT CLASSIFICATION / ANOMALY DETECTION (PHD WORK BY HANHE LIN)

Feature Extraction: Optical flow histogram undergoing Quantization and Binary Coding (QBC)

PETS dataset.CAIR feature evaluation: best n=3 or 4.6 Events shown in 3-D manifolds: walking, running, local movement, local dispersion, splitting, formation, evacuation.

PRML SNAPSHOT III:VIDEO STREAMING ON AD HOC MULTI-HOP NETWORKS (PHD WORK BY YUWEI XU)

Neighbor nodes have interferenceNodes have limited storageIndependently modeled as M/M/1/KHowever, processing rates mu not known.Method

From lambda, lambda_d, queue length, estimate muMinimize total delay

FUTURE TALKS

Technical

Probabilistic modeling in information processing (overview, recent advances, PRML research highlights)

Similarity measures - interesting alternatives other than Euclidean distance, with applications in information retrieval, pattern recognition, and more

Non-technical

LaTeX: stories and practices, or How To Write Your (First) Paper in a Proper Way