Machine Learning Seminars

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Machine Learning seminars are held every Thursday at 11.15am-12.00pm and are broadcast to NICTA labs:


CRL - Seminar Room, Ground Floor

ATP - Seminar Room, Level 4

NRL - Seminar Room, Level 4


Depending on the equipment used, they can be broadcast live on AARNET, click on "Live Now".

Visitors are welcome.

Current

Date:
17 July 2014
Time:
11.15am-12.00pm
Where:  
NICTA CRL Seminar Room
Presenter:
Lizhen Qu
Title: 
Relations, Relation of Relations, and new Directions
Abstract:
 
My talk will consist of two parts. The first part of the talk will shortly introduce my recent work on sentiment-oriented relation extraction and word order learning.  The former task aims to jointly extract both sentiments (e.g. Paul likes Nexus 5.) and comparisons (e.g. Paul thinks Nexus 5 is better than Galaxy S5.) from sentences. The corresponding outputs are directed hyper-graphs and the lexical features are learned with recursive neural networks. The task of word order learning tries to reconstruct sentences from bags of words. I will show that although the inference problem is NP-hard, our model can learn from 10,000 sentences in less than 5 minutes. In the second part of the talk, I will discuss a set of problems, and apparent technical challenges when extracting relation of relations from free text. The related research questions will range from efficient inference on hyper-graphs to learning semantic representation from multiword expressions. Some of them are natural extensions of the aforementioned work. Because the goal of my talk is to spark possible collaborations, my talk will focus more on discussing problems than presenting solutions.

Upcoming

Date:
24 July 2014
Time: 
11.15am–12.00pm
Where:
NICTA ATP Seminar Room
Presenter:
Alistair Reid
Title:
TBC
Abstract:
TBC

Past 

Past seminars details are stored by year: 20142013, 2012, 2011, 2010, 2009, 2008