Machine Learning | Computer Vision | Natural Language Processing
Monday, August 28, 2017
Question Part Relevance and Editing for Cooperative and Context-Aware VQA (C2VQA)
I attended the CBMI 2017 (Content-Based Multimedia Indexing) conference in Florence, Italy this past June and presented our paper on a new method for understanding the relevance and editing of questions in VQA. The paper is entitled Question Part Relevance and Editing for Cooperative and Context-Aware VQA (C2VQA) and we received a number of insightful questions and some excellent feedback.
The paper can be found here:
https://doi.org/10.1145/3095713.3095718
Saturday, February 25, 2017
Biometrics and forensics integration using deep multi-modal semantic alignment and joint embedding
My advisor (Dr. Harry Wechsler) and I just published a paper entitled "Biometrics and forensics integration using deep multi-modal semantic alignment and joint embedding" in Pattern Recognition Letters. In the paper, we show some results about multi-modal (text / image) models and their application as a source of biometric information that is useful for forensic investigations.
The paper can be found here:
http://www.sciencedirect.com/science/article/pii/S0167865517300430
The paper can be found here:
http://www.sciencedirect.com/science/article/pii/S0167865517300430
Friday, February 17, 2017
A multi-scale approach to data-driven mass migration analysis
Here is a link to the proceedings for the Workshop on Data Science for Social Good (SoGood 2016), containing a paper for which I was one of the authors: https://www.dropbox.com/s/rey5462zl2m67by/proceedings_SoGood16.pdf?dl=0
The paper was entitled "A multi-scale approach to data-driven mass migration analysis".
Abstract:
A system for scenario analysis and forecasting of mass migration is presented. The system consists of a family of multi-scale models to address the need of responding agencies for better situational awareness, short and medium-term forecasts of migration patterns, and assess impact of changes on the ground. Such insights allow for better planning and resource allocations to address migrant needs. The analytical frame-work consists of three separate models (a) a global push-pull model to estimate macro-patterns, (b) a time-series prediction model for estimating future boundary conditions of crisis regions, and (c) a detailed network
ow model that models population diffusion within the crisis region and allows for scenario modeling. The paper presents the framework using the European refugee crisis as a case study. In addition, overall system design, practical considerations, end-user applications, and limitations of the modeling approach are discussed.
The paper was entitled "A multi-scale approach to data-driven mass migration analysis".
Abstract:
A system for scenario analysis and forecasting of mass migration is presented. The system consists of a family of multi-scale models to address the need of responding agencies for better situational awareness, short and medium-term forecasts of migration patterns, and assess impact of changes on the ground. Such insights allow for better planning and resource allocations to address migrant needs. The analytical frame-work consists of three separate models (a) a global push-pull model to estimate macro-patterns, (b) a time-series prediction model for estimating future boundary conditions of crisis regions, and (c) a detailed network
ow model that models population diffusion within the crisis region and allows for scenario modeling. The paper presents the framework using the European refugee crisis as a case study. In addition, overall system design, practical considerations, end-user applications, and limitations of the modeling approach are discussed.
Sunday, August 21, 2016
Error using PHP exec in MAMP in OSX (El Capitan)
Problem:
- I ran into an error trying to execute a system command in PHP 5.4.4 using exec, shell_exec, or system in MAMP.
- Example error: “image not found for libcaffe”.
- This command executed fine from Terminal, but would not work within MAMP.
-
<?php $cmd = "some command here"; shell_exec($cmd); ?>
Diagnosis:
- The $PATH did not seem to be correct (compared to what I have in ~/.bash_profile.), so MAMP must not be setting it up correctly
<?php shell_exec("echo $PATH"); ?>
Solution:
- Stop MAMP
- Copy unused environment variables file
cp /Applications/MAMP/Library/bin/envvars_ /Applications/MAMP/Library/bin/envvars
- Edit environment variables file
vi /Applications/MAMP/Library/bin/envvars
- Add the following line:
~/.bash_profile
- Start MAMP
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