|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
Wonsang Song
|
|
|
|
Wonsang Song v4.2.0
| Who am I? |
|
I am a Ph.D. student in the department of Computer Science at Columbia University. My advisor is Professor Henning Schulzrinne. I've been working at Internet Real Time Lab since Summer 2005 when I was a M.S. student. I got my M.S. degree from the department of Computer Science at Columbia University in February 2006.
Before coming to New York, I co-founded Neogenius, a software startup in Seoul, Korea, and worked as a software developer and a project manager for over four years. Although my dream of early retirement didn't come true, those days were the happiest moment in my life.
I got my B.S. degree from the department of Computer Engineering at Seoul National University, Seoul, Korea, in February 1997.
|
| |
| What am I doing? |
Currently I'm working on location privacy, especially how to preserve location privacy while using location-based services. Location is highly private: current location tells your where-about, past and current location can tell who you are, where you live and what you are doing, and future location can be inferred from the past and current location. There are many approaches to protect location privacy, and I'm focusing on location the obfuscation technique, which is intentionally degrading the accuracy of location information while satisfying a user's privacy preference.
My previous project was the Next Generation 9-1-1 Project (NG9-1-1) in which we have built a prototype system to handle emergency calls over VoIP networks. Determining a caller's location and routing the call to the proper Public Safety Answering Point (PSAP) were the most challenging parts. My contributions are designing and implementing psapd, which is an automatic call distributor at PSAP, and implementing LoST server from scratch, which resolves an appropriate PSAP based on caller's location and service type.
We also integrated IM and SMS networks into the NG9-1-1 architecture. To this end, we identified the technical challenges in the integration of IM and SMS networks with the NG9-1-1 system, and proposed solution for conveying location within messages, converting them to SIP, and dealing with multiple messages within a single session.
|
| |
| Where am I? |
|
You can track my location using Google Latitude. Click here to turn it on. I'm using laziness-based approach to protect my location privacy.
|
| |
| Contact |
| E-mail: |
|
| Phone: |
+1-646-775-6066 |
| Office: |
721 CEPSR |
| Mailing address: |
1214 Amsterdam Avenue
Computer Science Mailbox 136
Mailcode: 0401
New York, NY 10027
|
|
|
|
