In short

I am a Senior Applied Scientist at Uber ATG in the Machine Learning group. Prior to Uber I worked as a Research Scientist at Yahoo Labs, in the Targeting Science group. I received PhD in Computer Science from the Department of Computer & Information Sciences, Temple University, under mentorship of prof. Slobodan Vucetic. Previously, I received B.Sc. and M.Sc. in Electrical Engineering in 2007 and 2009, respectively, from University of Novi Sad, Serbia. For more info see my CV.

News

March 2018: I am co-organizing 2018 Edition of AdKDD and TargetAd, a workshop held in conjuction with KDD 2018.
Past workshops I co-organized:

June 2014: Our World Cup predictor based on the analysis of millions of Tumblr posts was featured on Yahoo! Labs, Yahoo! Sports, MarketWatch, and other websites throughout the world.

August 2013: Our work "Semi-Supervised Learning for Integration of Aerosol Predictions from Multiple Satellite Instruments" received an Outstanding Paper Award at IJCAI 2013, AI and Computational Sustainability Track.

May 2013: BudgetedSVM, a C++ toolbox for large-scale non-linear classification, is available for download.


Research

I am interested in several areas of Machine Learning and Data Mining. I have worked on problems related to self-driving vehicles, computational advertising, learning on low resources, spatio-temporal problems in remote sensing, data visualization, object matching. Complete list of my publications, along with source code and PDF of a paper if possible, is given below.
NOTE: In order to use papers published by IEEE, one must adhere to the terms of the following IEEE copyright notice.

Journal papers

  1. Large-Scale Discovery of Disease-Disease and Disease-Gene Associations
    Gligorijevic, Dj., Stojanovic, J., Djuric, N., Radosavljevic, V., Grbovic, M., Kulathinal, R. J., Obradovic, Z.
    Nature Scientific Reports, vol. 6, article no. 32404, 2016.
    [pdf] [bibtex]
  2. Modeling Healthcare Quality via Compact Representations of Electronic Health Records
    Stojanovic, J., Gligorijevic, Dj., Radosavljevic, V., Djuric, N., Grbovic, M., Obradovic, Z.
    IEEE/ACM Transactions on Computational Biology and Bioinformatics (TCBB), vol. PP, no. 99, pp. 1-1, 2016.
    [pdf] [IEEE Xplore] [bibtex]
  3. Semi-Supervised Combination of Experts for Aerosol Optical Depth Estimation
    Djuric, N., Kansakar, L., Vucetic, S.
    Artificial Intelligence, vol. 230, pp. 1-13, 2016.
    [ScienceDirect] [bibtex]
  4. Gaussian Conditional Random Fields for Aggregation of Operational Aerosol Retrievals
    Djuric, N., Radosavljevic, V., Obradovic, Z., Vucetic, S.
    IEEE Geoscience and Remote Sensing Letters, vol. 12, no. 4, pp. 761-765, 2014.
    [pdf] [appendix] [IEEE Xplore] [bibtex]
  5. BudgetedSVM: A Toolbox for Scalable SVM Approximations
    Djuric, N., Lan, L., Vucetic, S., Wang, Z.
    Journal of Machine Learning Research (JMLR), 14(Dec):3813−3817, 2014.
    [pdf] [code] [webpage] [bibtex]
  6. Supervised Clustering of Label Ranking Data using Label Preference Information
    Grbovic, M., Djuric, N., Guo, S., Vucetic, S.
    Machine Learning Journal (MLJ), pp. 1-35, 2013.
    [pdf] [bibtex]
  7. A Large-scale Evaluation of Computational Protein Function Prediction
    Radivojac, P., Clark, W. T., ..., Toppo, S., Lan, L., Djuric, N., Guo, Y., Vucetic, S., Bairoch, A., Linial, M., Babbitt, P. C., et al.
    Nature Methods, vol. 10, no. 3, pp. 221-229, 2013.
    [pdf] [bibtex]
  8. MS-kNN: Protein Function Prediction by Integrating Multiple Data Sources
    Lan, L., Djuric, N., Guo, Y., Vucetic, S.
    BMC Bioinformatics, vol. 14 (suppl. 3):S8, 2013.
    [pdf] [bibtex]
  9. Traffic State Estimation from Aggregated Measurements using Signal Reconstruction Techniques
    Coric, V., Djuric, N., Vucetic, S.
    Transportation Research Record: Journal of the Transportation Research Board, Traffic Flow Theory and Characteristics, no. 2315, pp. 121-130, 2012.
    [pdf] [bibtex]
  10. Travel Speed Forecasting by Means of Continuous Conditional Random Fields
    Djuric, N., Radosavljevic, V., Coric, V., Vucetic, S.
    Transportation Research Record: Journal of the Transportation Research Board, Network Modeling, no. 2263, pp. 131-139, 2011.
    [pdf] [slides] [poster] [bibtex]

Conference papers

  1. Analyzing Uber's Ride-Sharing Economy
    Kooti, F., Grbovic, M., Aiello, L. M., Djuric, N., Radosavljevic, V., Lerman, K.
    International World Wide Web Conference (WWW), Perth, Australia, 2017.
    [pdf] [slides] [bibtex]
  2. Network–Efficient Distributed Word2vec Training System for Large Vocabularies
    Ordentlich, E., Feng, A., Grbovic, M., Yang, L., Cnudde, P., Djuric, N., Radosavljevic, V., Owens, G.
    International ACM Conference on Information and Knowledge Management (CIKM), Indianapolis, USA, 2016.
    [pdf] [bibtex]
  3. Travel the World: Analyzing and Predicting Booking Behavior using E-mail Travel Receipts
    Djuric, N., Grbovic, M., Radosavljevic, V., Savla, J., Bhagwan, V., Sharp, D.
    International World Wide Web Conference (WWW), Montreal, Canada, 2016.
    [pdf] [bibtex]
  4. Smartphone App Categorization for Interest Targeting in Advertising Marketplace
    Radosavljevic, V., Grbovic, M., Djuric, N., Bhamidipati, N., Zhang, D., Wang, J., Dang, J., Huang, H., Nagarajan, A., Chen, P.
    International World Wide Web Conference (WWW), Montreal, Canada, 2016.
    [pdf] [bibtex]
  5. Scalable Semantic Matching of Search Queries to Ads in Sponsored Search Advertising
    Grbovic, M., Djuric, N., Radosavljevic, V., Silvestri, F., Baeza-Yates, R., Feng, A., Ordentlich, E., Yang, L., Owens, L.
    International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR), Pisa, Italy, 2016.
    [pdf] [slides] [bibtex] [blog]
  6. ParkAssistant: An Algorithm for Guiding a Car to a Parking Spot
    Djuric, N., Grbovic, M., Vucetic, S.
    Transportation Research Board 95th Annual Meeting (TRB), Washington, D.C., USA, 2016.
    [pdf] [poster] [bibtex]
  7. Portrait of an Online Shopper: Understanding and Predicting Consumer Behavior
    Kooti, F., Lerman, K., Aiello, L. M., Grbovic, M., Djuric, N., Radosavljevic, V.
    ACM International Conference on Web Search and Data Mining (WSDM), San Francisco, USA, 2016.
    [pdf] [slides] [bibtex] [blog]
  8. E-commerce in Your Inbox: Product Recommendations at Scale
    Grbovic, M., Radosavljevic, V., Djuric, N., Bhamidipati, N., Savla, J., Bhagwan, V., Sharp, D.
    ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD), Sydney, Australia, 2015.
    [pdf] [slides] [bibtex]
  9. Gender and Interest Targeting for Sponsored Post Advertising at Tumblr
    Grbovic, M., Radosavljevic, V., Djuric, N., Bhamidipati, N., Nagarajan, A.
    ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD), Sydney, Australia, 2015.
    [pdf] [slides] [bibtex]
  10. Context- and Content-aware Embeddings for Query Rewriting in Sponsored Search
    Grbovic, M., Djuric, N., Radosavljevic, V., Silvestri, F., Bhamidipati, N.
    International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR), Santiago, Chile, 2015.
    [pdf] [bibtex]
  11. Hierarchical Neural Language Models for Joint Representation of Streaming Documents and their Content
    Djuric, N.*, Wu, H.*, Radosavljevic, V., Grbovic, M., Bhamidipati, N., *authors contributed equally
    International World Wide Web Conference (WWW), Florence, Italy, 2015.
    [pdf] [slides] [bibtex]
  12. Search Retargeting using Directed Query Embeddings
    Grbovic, M., Djuric, N., Radosavljevic, V., Bhamidipati, N.
    International World Wide Web Conference (WWW), Florence, Italy, 2015.
    [pdf] [bibtex]
  13. Hate Speech Detection with Comment Embeddings
    Djuric, N., Zhou, J., Morris, R., Grbovic, M., Radosavljevic, V., Bhamidipati, N.
    International World Wide Web Conference (WWW), Florence, Italy, 2015.
    [pdf] [bibtex]
  14. queryCategorizr: A Large-Scale Semi-Supervised System for Categorization of Web Search Queries
    Grbovic, M., Djuric, N., Radosavljevic, V., Bhamidipati, N., Hawker, J., Johnson, C.
    International World Wide Web Conference (WWW), Florence, Italy, 2015.
    [pdf] [bibtex]
  15. Hidden Conditional Random Fields with Distributed User Embeddings for Ad Targeting
    Djuric, N., Radosavljevic, V., Grbovic, M., Bhamidipati, N.
    IEEE International Conference on Data Mining (ICDM), Shenzhen, China, 2014.
    [pdf] [slides] [IEEE Xplore] [bibtex]
  16. Non-linear Label Ranking for Large-scale Prediction of Long-Term User Interests
    Djuric, N., Grbovic, M., Radosavljevic, V., Bhamidipati, N., Vucetic, S.
    AAAI Conference on Artificial Intelligence (AAAI), Quebec City, Canada, 2014.
    [pdf] [slides] [poster] [bibtex]
  17. Frugal Traffic Monitoring with Autonomous Participatory Sensing
    Coric, V., Djuric, N., Vucetic, S.
    SIAM Conference on Data Mining (SDM), Philadelphia, PA, 2014.
    [pdf] [bibtex]
  18. Efficient Visualization of Large-scale Data Tables through Reordering and Entropy Minimization
    Djuric, N., Vucetic, S.
    IEEE International Conference on Data Mining (ICDM), Dallas, TX, 2013.
    [pdf] [slides] [poster] [IEEE Xplore] [bibtex]
  19. Distributed Confidence-Weighted Classification on MapReduce
    Djuric, N., Grbovic, M., Vucetic, S.
    IEEE International Conference on Big Data (IEEE BigData), Santa Clara, CA, USA, 2013.
    [pdf] [slides] [code] [IEEE Xplore] [bibtex]
  20. Semi-Supervised Learning for Integration of Aerosol Predictions from Multiple Satellite Instruments
    Djuric, N., Kansakar, L., Vucetic, S.
    International Joint Conference on Artificial Intelligence (IJCAI), Beijing, China, 2013.
    Outstanding paper award from AI and Computational Sustainability Track
    [pdf] [slides] [code] [bibtex]
  21. Multi-prototype Label Ranking with Novel Pairwise-to-Total-Rank Aggregation
    Grbovic, M.*, Djuric, N.*, Vucetic, S., *authors contributed equally
    International Joint Conference on Artificial Intelligence (IJCAI), Beijing, China, 2013.
    [pdf] [bibtex]
  22. Convex Kernelized Sorting
    Djuric, N., Grbovic, M., Vucetic, S.
    AAAI Conference on Artificial Intelligence (AAAI), Toronto, Canada, 2012.
    [pdf] [slides] [code] [bibtex]
  23. Supervised Clustering of Label Ranking Data
    Grbovic, M., Djuric, N., Vucetic, S.
    SIAM Conference on Data Mining (SDM), Anaheim, CA, USA, 2012.
    Best of SDM (selected in the top 10 best papers)
    [pdf] [slides] [bibtex]
  24. Trading Representability for Scalability: Adaptive Multi-Hyperplane Machine for Nonlinear Classification
    Wang, Z., Djuric, N., Crammer, K., Vucetic, S.
    ACM SIGKDD Conference on Knowledge Discovery and Data Mining (KDD), San Diego, CA, USA, 2011.
    [pdf] [code] [bibtex]

Workshop papers

  1. Leveraging Blogging Activity on Tumblr to Infer Demographics and Interests of Users for Advertising Purposes
    Grbovic, M., Radosavljevic, V., Djuric, N., Bhamidipati, N., Nagarajan, A.
    Workshop on 'Making Sense of Microposts' at International World Wide Web Conference (#Microposts), Montreal, Canada, 2016.
    [pdf] [bibtex]
  2. Large-scale World Cup 2014 outcome prediction based on Tumblr posts
    Radosavljevic, V., Grbovic, M., Djuric, N., Bhamidipati, N.
    Workshop on Large-Scale Sports Analytics at ACM SIGKDD Conference on Knowledge Discovery and Data Mining (SportsKDD), New York City, USA, 2014.
    [pdf] [bibtex] [blog1 blog2]
  3. How much do age and gender affect news topic preferences?
    Djuric, N., Grbovic, M., Görür, D., Radosavljevic, V.
    Data Science for News Publishing Workshop at ACM SIGKDD Conference on Knowledge Discovery and Data Mining (NewsKDD), New York City, USA, 2014.
    [pdf] [bibtex]
  4. Learning from Pairwise Preference Data using Gaussian Mixture Model
    Grbovic, M., Djuric, N., Vucetic, S.
    Preference Learning Workshop, European Conference on Artificial Intelligence (PL-ECAI), Montpellier, France, 2012.
    [pdf] [bibtex]
  5. Protein Function Prediction by Integrating Different Data Sources
    Lan, L., Djuric, N., Guo, Y., Vucetic, S.
    Automated Function Prediction SIG 2011 featuring the CAFA Challenge: Critical Assessment of Function Annotations (AFP/CAFA), Vienna, Austria, 2011.
    Top performing team at AFP/CAFA 2011 Protein Function Prediction Assessment
    [pdf] [bibtex]
  6. Random Kernel Perceptron on ATTiny2313 Microcontroller
    Djuric, N., Vucetic, S.
    International Workshop on Knowledge Discovery from Sensor Data at ACM SIGKDD Conference on Knowledge Discovery and Data Mining (SensorKDD), Washington DC, USA, 2010.
    [pdf] [slides] [bibtex]

Book chapters

  1. Distributed Confidence-Weighted Classification on Big Data Platforms
    Djuric, N., Grbovic, M., Vucetic, S.
    In V. Govindaraju, V. Raghavan, C. R. Rao (Editors), "Handbook of Statistics: Big Data Analytics", vol. 33, Elsevier, 2015.
    [ScienceDirect] [bibtex]

Dissertation

Big Data Algorithms for Visualization and Supervised Learning
Djuric, N.
Temple University, 2013.
[pdf] [slides] [bibtex]


Teaching

I was a Teaching Assistant at Temple University in the following courses:
Spring 2012
Fall 2011