
<HTML> 
<HEAD> 
<TITLE>Homepage of Rongrong Ji</TITLE> 
<META http-equiv=Content-Type content="text/html; charset=ISO-8859-1"> 
<link rel="shortcut icon" href="index.files/cuseas.ico"> 
<STYLE> 
body 
{margin: 0;
 border: 0;
 padding: 0px;
 border-top: #2d2a62 18px solid;   	
}
 
p,td {font-size: 9.5pt;color: #000;font-family: Arial; }
 
a:link {color: #2B2EAC; text-decoration:none; }
a:visited {color: #2B2EAC; text-decoration:none; }
a:hover {background: #2B2EAC; color: #ffffff; text-decoration:none; }
 
img {border-width: 1px; border-color: #000000; border-style: solid; }
 
#menu {text-align:right;width: 300px;margin-top:0px;border-bottom:1px dotted #000; }
#menu a {color:#393939;font-weight:bold;}
.menulinks {line-height:1.7em; margin:0 0 0 0;}
.menulink {padding:6px 8px 5px 8px; font-weight:400; margin:0 0 0 2px;}
.menulink:hover {background-color:#e6e6e6; }
.active {background-color:#e6e6e6; }
.active:hover {background-color:#e6e6e6; }
 
.sectiontitle{font-size: 13pt; font-weight:bold; font-family: Arial; }
	
.talks{font-size: 7.5pt; font-weight: bold; color: #393939; font-family: Arial; }
 
#counter img {border-width:0px;}
</STYLE> 
</HEAD> 
 
 
<BODY> 
 
<TABLE cellSpacing=18 width=800 border=0 cellpadding="6" align="left" style="height: 100%;"> 
<TBODY><TR><TD valign="top"> 

<TABLE cellSpacing=7 width=700 border=0> 
  <TBODY> 
  <TR> 
  <TD align="left" width=300> 
  <img width=300 src="personal.jpg">     
  </TD> 
  <TD align="left" width=400>	
  <P><font style="font-size: 19pt" face="Tahoma">Rongrong Ji</font><BR>
      	<br><br> 
				<font face=arial color=#666 size=-1>
				Hi, this is my new homepage at Columbia University.
				I have been a postdoc researcher in DVMM laboratory since Octomber 2010,  working with Professor Shih-Fu Chang.</font><br> 
				<br> 		
  </TD> 
  </TR> 
  </TBODY>
</TABLE> 

<br> <p class=sectiontitle>Contact Information</p> 
<TABLE cellSpacing=7 width=500 bgcolor=#e6e6e6 border=0> 
<TBODY> 
<TR><TD align=justify> 
<P>
PostDoc Researcher at DVMM Lab<BR>
Department of Electrical Engineering, Columbia University<BR>
Address: Room 712, Schapiro Research Building (CEPSR).<BR>
Mail: 1312 S. W. Mudd, 500 West 120th Street, New York, NY 10027<BR>
Phone: (212) 854-3105, Fax: (212) 932-9421, Mobile: 917-655-3190<BR>
<b>Email: jirongrong at gmail.com or rrji at ee.columbia.edu</b><BR>
-----------------------------------------------------------------------------<BR>
For the reference of my previous contact information:<BR>
PH.D. @ Multimedia Retrieval Group, Visual Intelligence Laboratory,<BR>
Department of Computer Science, Harbin Institute of Technology<BR>
Room 614, Zonghelou Building, No.92, <BR>
West Dazhi Street, Harbin, 150001<BR>
Phone: 86-451-86416485, Tel: 15124525618<BR>
 </TD></TR> 
 </TBODY> 
 </TABLE> 
 
<br> <p class=sectiontitle>Research Interest</p> 
<TABLE cellSpacing=7 width=830 bgcolor=#e6e6e6 border=0> 
<TBODY> 
<TR><TD align=justify> 
<P>
My research interests fall in the areas of computer vision and multimedia.
My recent works mainly focus on mobile visual search, single image depth estimation, and social media understanding.<BR>
 </TD></TR> 
 </TBODY> 
 </TABLE>
 
 <br> <p class=sectiontitle>Education and Research Experiences</p> 
<TABLE cellSpacing=7 width=950 bgcolor=#e6e6e6 border=0> 
<TBODY> 
<TR><TD align=justify> 
<P>
<LI>PostDoc Researcher, Digital Video and Multimedia Lab, working with Professor Shih-Fu Chang, Normber, 2010 - now<BR>
<LI>Visiting Student: Institute of Digital Media, Peking University, worked with Professor Wen Gao, June, 2010 – Normber 2010<BR>
<LI>Visiting Student: Texas University at San Antonio, worked with Professor Qi Tian, April, 2010 – June, 2010<BR>
<LI>Research Intern: Microsoft Research Asia, worked with Dr. Xing Xie, August, 2007 - September, 2008<BR>
<LI>Research Assistant: Visual Intelligence Laboratory, worked with Professor Hongxun Yao, September, 2005 – December 2010<BR>
<LI>PH.D.: Department of Computer Science and Technology, Harbin Institute of Technology, Sep 2007 – Octomber 2010<BR>
<LI>M.D.: Department of Computer Science and Technology, Harbin Institute of Technology, Sep 2005 – July 2007<BR>
<LI>Bachelor: Department of Computer Science and Technology, Harbin Engineering University, Sep 2001 - July 2005<BR>
 </TD></TR> 
 </TBODY> 
 </TABLE> 
 
 <br> <p class=sectiontitle>Selected Journal Publications</p> 
<TABLE cellSpacing=7 width=700 bgcolor=#e6e6e6 border=0> 
<TBODY> 
<TR><TD align=justify> 

<div class="pub" id="ijcv11:compactdescriptor"> 
<UL> 
	<LI>Rongrong Ji, Ling-Yu Duan, Jie Chen, Hongxun Yao, Junsong Yuan, Yong Rui, and Wen Gao.<BR> 
	<b>Location Discriminative Vocabulary Coding for Mobile Landmark Search</b><BR>   	
	International Journal of Computer Vision (IJCV), 2012.
</UL> 
</div> 

<div class="pub" id="tip11:codebookcompression"> 
<UL> 
	<LI>Rongrong Ji, Hongxun Yao, Wei Liu, Xiaoshuai Sun, and Qi Tian.<BR> 
	<b>Task Dependent Visual Codebook Compression</b> <BR>
  	IEEE Transactions on Image Processing (TIP), 2012.
</UL> 
</div>

<div class="pub" id="tip:3d"> 
<UL> 
	<LI>Yue Gao, Meng Wang, Rongrong Ji, Dacheng Tao, Qionghai Dai, and Naiyao Zhang.<BR> 
	<b>3D Object Retrieval and Recognition with Constructive Hypergraph Analysis</b> <BR>
	IEEE Transactions on Image Processing (TIP), 2012.
</UL> 
</div>

<div class="pub" id="tmm"> 
<UL> 
	<LI>Rongrong Ji, Ling-Yu Duan, Hongxun Yao, Lexing Xie, Yong Rui and Wen Gao.<BR> 
	<b>Learning to Distribute Vocabulary Indexing for Scalable Visual Search</b> <BR>
	IEEE Transactions on Multimedia (TMM), 2012.
</UL> 
</div>

<div class="pub" id="tomccap12:aqs"> 
<UL> 
  <LI>Rongrong Ji, Felix X. Yu, and Shih-Fu Chang.<BR> 
  <b>Active Query Sensing for Mobile Location Search</b> <BR>
  ACM Transactions on Multimedia Computing, <BR>
  Communications and Applications (TOMCCAP), 2012.
</UL> 
</div>

<div class="pub" id="tomccap12:hashing"> 
<UL> 
  <LI>Dong Liu, Shuicheng Yan, Rongrong Ji, Xian-Sheng Hua, and Hong-Jiang Zhang.<BR> 
  <b>Image Retrieval with Query-Adaptive Hashing</b> <BR>
  ACM Transactions on Multimedia Computing, <BR>
  Communications and Applications (TOMCCAP), 2012.
</UL> 
</div>

<div class="pub" id="tomccap11:mining"> 
<UL> 
  <LI>Rongrong Ji, Bineng Zhong, Hongxun Yao, and Qi Tian.<BR> 
  <b>Mining City Landmarks by Modeling Reconstruction Sparsity</b> <BR>
  ACM Transactions on Multimedia Computing, <BR>
  Communications and Applications (TOMCCAP), 2011.
</UL> 
</div>

<div class="pub" id="tist11:context"> 
<UL> 
	<LI>Rongrong Ji, Hongxun Yao, Xiaoshuai Sun, Pengfei Xu, Xianming Liu, and Qi Tian.<BR> 
	<b>Context-aware Semi-Local Feature Detector</b> <BR> 
	ACM Transactions on Intelligent System and Technology (TIST), 2012.
</UL> 
</div>

<div class="pub" id="pr11:action"> 
<UL CLASS="PUB"> 
	<LI>Rongrong Ji, Hongxun Yao, and Xiaoshuai Sun.<BR> 
	<b>Actor-Independent Action Search Using Spatiotemporal Vocabulary with Appearance Hashing</b> <BR>
	Pattern Recognition (PR), 2011.
</UL> 
</div>

<div class="pub" id="ieeemm:vocbaulary"> 
<UL CLASS="PUB"> 
	<LI>Rongrong Ji, Hongxun Yao, Xing Xie, and Qi Tian.<BR> 
	<b>Vocabulary Hierarchy Optimization and Transfer for Scalable Image Search</b> <BR>
	IEEE Multimedia Magazine (IEEE MM), <BR>
	Special Issue on Visual Content Identification and Search, Accept, 2011.
</UL> 
</div>

</TD></TR> 
 </TBODY> 
 </TABLE> 

<br> <p class=sectiontitle>Selected Conference Publications</p> 
<TABLE cellSpacing=7 width=750 bgcolor=#e6e6e6 border=0> 
<TBODY> 
<TR><TD align=justify> 

<div class="pub" id="cvpr12a"> 
<UL> 
	<LI>Wei Liu, Jun Wang, Rongrong Ji, Yu-Gang Jiang, and Shih-Fu Chang..<BR> 
	<b>Supervised Hashing with Kernels</b> <BR>
	IEEE International Conference on Computer Vision and Pattern Recognition (CVPR), Oral, 2012. 
</UL> 
</div>

<div class="pub" id="cvpr12b"> 
<UL> 
	<LI>Xiaoshuai Sun, Hongxun Yao, and Rongrong Ji.<BR> 
	<b>What Are We Looking For: Towards Statistical Modeling of Saccadic Eye Movements and Visual Saliency</b> <BR>
	IEEE International Conference on Computer Vision and Pattern Recognition (CVPR), Oral, 2012.
</UL> 
</div>

<div class="pub" id="cvpr12c"> 
<UL> 
	<LI>Rongrong Ji}, Ling-Yu Duan, Jie Chen, and Wen Gao.<BR> 
	<b>Towards Compact Topical Descriptor</b> <BR>
	IEEE International Conference on Computer Vision and Pattern Recognition (CVPR), 2012.
</UL> 
</div>

<div class="pub" id="cvpr12d"> 
<UL> 
	<LI>Liujuan Cao*, Rongrong Ji*, Yue Gao, and Qi Tian.<BR> 
	<b>Weakly Supervised Coding with Geometric Consistency Pooling</b> <BR>
	IEEE International Conference on Computer Vision and Pattern Recognition (CVPR), *Equal Contribution, 2012.
</UL> 
</div>

<div class="pub" id="cvpr12e"> 
<UL> 
	<LI>Felix X. Yu, Rongrong Ji, Ming-Hen Tsai, Guangnan Ye, and Shih-Fu Chang.<BR> 
	<b>Weak attributes for large-scale image retrieval</b> <BR>
	IEEE International Conference on Computer Vision and Pattern Recognition (CVPR), 2012.
</UL> 
</div>

<div class="pub" id="ijcai11:compactdescriptor"> 
<UL> 
	<LI>Rongrong Ji, Ling-Yu Duan, Jie Chen, Hongxun Yao, and Wen Gao.<BR> 
	<b>Learning Compact Visual Descriptor for Low Bit Rate Mobile Landmark Search</b> <BR>
	International Joint Conference of Artificial Intelligence (IJCAI), pp. 2456-2463, 2011. 
</UL> 
</div>

<div class="pub" id="aaai11:matrix">
<UL>
	<LI>Yi Yang, Heng Tao Shen, Feiping Nie, Rongrong Ji, and Xiaofang Zhou.<BR> 
	<b>Nonnegative Spectral Clustering with Discriminative Regularization</b> <BR>
	Twenty-Fifth Conference on Artificial Intelligence (AAAI), Accept, 2011. 
</UL> 
</div>

<div class="pub" id="mm11:multichannel"> 
<UL> 
	<LI>Rongrong Ji, Ling-Yu Duan, Jie Chen, Hongxun Yao, Yong Rui, Shih-Fu Chang, and Wen Gao.<BR> 
	<b>Towards Low Bit Rate Mobile Visual Search with Multiple Channel Coding</b> <BR>
	ACM Multimedia (MM), Full Paper, Oral, 2011.
</UL> 
</div> 

<div class="pub" id="mm11:aqs"> 
<UL> 
	<LI>Felix X. Yu, Rongrong Ji, and Shih-Fu Chang.<BR> 
	<b>Active Query Sensing</b> <BR>
	ACM Multimedia (MM), Full Paper, Oral, 2011 (Best Paper Award).
</UL> 
</div> 

<div class="pub" id="mm11:transfer"> 
<UL> 
	<LI>Xianming Liu, Hongxun Yao, Rongrong Ji, and Qi Tian.<BR> 
	<b>Learning Heterogeneous Data for Hierarchical Web Video Classification</b> <BR>
	ACM Multimedia (MM), Full Paper, Oral, 2011.
</UL> 
</div> 

<div class="pub" id="cvpr10:semanticembedding"> 
<UL> 
  <LI>Rongrong Ji, Hongxun Yao, Xiaoshuai Sun, Bineng Zhong, and Wen Gao.<BR> 
  <B>Towards Semantic Embedding in Visual Vocabulary</B><BR>
  IEEE International Conference of Computer Vision and Pattern Recognition (CVPR), Oral, 2010.
</UL> 
</div> 

<div class="pub" id="cvpr10:weakly"> 
<UL> 
  <LI>Bineng Zhong, Hongxun Yao, Rongrong Ji, Xiaotong Yuan, Shaohui Liu, and Wen Gao.<BR> 
  <B>Visual Tracking via Weakly Supervised Learning from Multiple Imperfect Oracles</B> <BR>
  IEEE International Conference of Computer Vision and Pattern Recognition (CVPR), 2010.
</UL> 
</div> 

<div class="pub" id="cvpr11:tracking"> 
<UL>
  <LI>Dawei Liang, Qingming Huang, Hongxun Yao, Shuqiang Jiang, Rongrong Ji,  and Wen Gao.<BR> 
  <B>Novel Observation Model for Probabilistic Object Tracking</B> <BR>
  IEEE International Conference of Computer Vision and Pattern Recognition (CVPR), 2010.
</UL>
</div>

<div class="pub" id="cvpr09:hierarchy"> 
<UL> 
  <LI>Rongrong Ji, Xing Xie, Hongxun Yao, and Wei-Ying Ma.<BR> 
  <b>Hierarchical Optimization of Visual Vocabulary for Effective and Transferable Retrieval</b> <BR>
  IEEE International Conference on Computer Vision and Pattern Recognition (CVPR), 2009. 
</UL> 
</div>  

 <div class="pub" id="mm09:landmark"> 
<UL> 
  <LI>Rongrong Ji, Xing Xie, Hongxun Yao, Wei-Ying Ma.<BR> 
  <b>Mining City Landmarks from Blogs by Graph Modeling</b> <BR>
  ACM Multimedia (MM), Oral, 2009.
</UL> 
</div>

 </TD></TR> 
 </TBODY> 
 </TABLE> 
 
<br> <p class=sectiontitle>Academic Sevices</p> 
<TABLE cellSpacing=7 width=600 bgcolor=#e6e6e6 border=0> 
<TBODY> 
<TR><TD align=justify> 

<LI><b>Associate Editor</b><BR>
International Journal on Computer Application<BR>

<BR>
<LI><b>Guest Editor</b><BR>
International Journal on Computer Application Special Issue on  Image Processing and Analysis<BR>

<BR>
<LI><b>Section and Special Section Chair</b><BR>
Multimedia Modeling, 2012<BR>
Pacific & Rim Conference on Multimedia, 2012<BR>
International Conference on Pervasive Computing, Signal Processing and Applications, 2011<BR>
ACM International Conference on Internet Multimedia Computing and Service, 2010<BR>
IEEE International Conference on Multimedia and Expo, 2008<BR>

<BR>
<LI><b>Invited Speaker</b><BR>
International Workshop on Computer Vision @ SIAT<BR>
Doctoral Consortium, CVPR 2010<BR>

<BR>
<LI><b>Program Committee Member</b><BR>
ACM Multimedia, 2012<BR>
ACM Multimedia, 2011<BR>
Eighth IEEE Workshop on Embedded Vision, 2012<BR>
Seventh IEEE Workshop on Embedded Computer Vision, 2011<BR>
IEEE Conference on Science and Social-science Research, 2010<BR>
International Symposium on Humanities, Science & Engineering Research 2010<BR>

<BR>
<LI><b>Journal Reviewer</b><BR>
IEEE Signal Processing Magazine<BR>
ACM Transactions on Multimedia Computing, Communication and Application<BR>
IEEE Transactions on Multimedia<BR>
International Journal of Multimedia<BR>
IEEE Transactions on Knowledge and Data Engineering<BR>
Pattern Recognition <BR>
IEEE Transactions on Circuits and Systems for Video Technology<BR>
IEEE Transactions on System man and Cybernetics Part B<BR>
Pattern Recognition<BR>
International Journal on Visual Comm. and Image Rep<BR>
Computer Vision and Image Understanding<BR>
ACM Multimedia Systems<BR>
Information Science<BR>
Neurocomputing<BR>

<BR>
<LI><b>Conference Reviewer</b><BR>
ACM Multimedia (MM) 2011<BR>
ACM Multimedia (MM) 2010<BR>
World Wide Web Conference (WWW) 2010 <BR>
ACM Conference on Mobile and Ubiquitous Multimedia (MUM) 2010<BR>
ACM Conference on Geographical Information Systems (GIS) 2010<BR>
ACM International Conference on Multimodal Interface (ICMI) 2010<BR>
Pacific-Rim Symposium on Image and Video Technology (PSIVT) 2010<BR>
International Conference on Internet Multimedia Computing and Service (ICIMCS) 2010<BR>
International Conference on Multimodal Interface (ICMI) 2010<BR>
Embedded Computer Vision Workshop (ICCV Workshop) 2009<BR>
ACM Multimedia (MM) 2008<BR>
ACM Conference on Mobile Data Management (MDM) 2008<BR>
IEEE Conference on Human Computer Interaction (HCI) 2008<BR>
ACM Conference on Mobile and Ubiquitous Multimedia (MUM) 2008<BR>

 </TD></TR> 
 </TBODY> 
 </TABLE> 

 <br> <p class=sectiontitle>Awards</p> 
<TABLE cellSpacing=7 width=600 bgcolor=#e6e6e6 border=0> 
<TBODY> 
<TR><TD align=justify> 

2011 ACM Multimedia Best Paper Award<BR>
2010 CVPR Doctoral Consortium Award<BR>
2009 Ongoing Excellent PH.D. Thesis Award of HIT<BR>
2009, Advanced Individual, Joint Research & Development Laboratory<BR>
2008 Tencent Ph.D Fellowship<BR>
2007 Microsoft Fellowship<BR>
2007 Best Graduate of Technology and Industry for National Defense<BR>
2007 Best Graduate of Harbin Institute of Technology<BR>
2006 Heqin Scholarship of HIT<BR>
2005 10 Best Student Candidate of HIT (The only candidate from CS)<BR>
2005 Best Graduate of Technology and Industry for National Defense<BR>
2005 Best Graduate of Heilongjiang Province<BR>


 </TD></TR> 
 </TBODY> 
 </TABLE> 
 
 
 <p><span lang=EN-US><a
href="http://www3.clustrmaps.com/counter/maps.php?url=http://vilab.hit.edu.cn/~rrji/"><span
style='mso-no-proof:yes;text-decoration:none;text-underline:none'><img
border=0 width=160 height=106 id="_x0000_i1025"
src="http://www3.clustrmaps.com/counter/index2.php?url=http://vilab.hit.edu.cn/~rrji/"
alt="Locations of visitors to this page"></span></a></span></p> 
 
<HR color="#000" size="5"> 
<font style="font-size: 7pt" face="Arial"> 
&copy; Rongrong Ji - Last modified on June 25, 2012 
</font> 

</TD></TR></TBODY></TABLE> 
</BODY></HTML>