Text compression via alphabet re-representation. - Philip M. Long; Apostol Natsev; Jeffrey Scott Vitter (Neural Networks, 1999)

CAMEL: concept annotated image libraries. - Apostol Natsev; Atul Chadha; Basuki Soetarman; Jeffrey Scott Vitter (Storage and Retrieval for Media Databases, 2001)

Constrained querying of multimedia databases: issues and approaches. - Apostol Natsev; John R. Smith; Yuan-Chi Chang; Chung-Sheng Li; Jeffrey Scott Vitter (Storage and Retrieval for Media Databases, 2001)

Supporting Incremental Join Queries on Ranked Inputs. - Apostol Natsev; Yuan-Chi Chang; John R. Smith; Chung-Sheng Li; Jeffrey Scott Vitter (VLDB, 2001)

Aggregate Predicate Support in DBMS. - Apostol Natsev; Gene Y. C. Fuh; Weidong Chen 008; Chi-Huang Chiu; Jeffrey Scott Vitter (Australasian Database Conference, 2002)

A study of image retrieval by anchoring. - Paul Natsev; John R. Smith (ICME (2), 2002)

Spatial and feature normalization for content-based retrieval. - John R. Smith; Paul Natsev (ICME (1), 2002)

IBM Research TREC 2002 Video Retrieval System. - Bill Adams; Giridharan Iyengar; Chalapathy Neti; Harriet J. Nock; Arnon Amir; Haim H. Permuter; Savitha Srinivasan; Chitra Dorai; Alejandro Jaimes; Christian A. Lang; Ching-Yung Lin; Apostol Natsev; et al. (TREC, 2002)

VideoAL: a novel end-to-end MPEG-7 video automatic labeling system. - Ching-Yung Lin; Belle L. Tseng; Milind R. Naphade; Apostol Natsev; John R. Smith (ICIP (3), 2003)

Exploring semantic dependencies for scalable concept detection. - Milind R. Naphade; Apostol Natsev; John R. Smith (ICIP (3), 2003)

Interactive search fusion methods for video database retrieval. - John R. Smith; Alejandro Jaimes; Ching-Yung Lin; Milind R. Naphade; Apostol Natsev; Belle L. Tseng (ICIP (1), 2003)

Normalized classifier fusion for semantic visual concept detection. - Belle L. Tseng; Ching-Yung Lin; Milind R. Naphade; Apostol Natsev; John R. Smith (ICIP (2), 2003)

A framework for moderate vocabulary semantic visual concept detection. - Milind R. Naphade; Ching-Yung Lin; Apostol Natsev; Belle L. Tseng; John R. Smith (ICME, 2003)

Active selection for multi-example querying by content. - Apostol Natsev; John R. Smith (ICME, 2003)

Multimedia semantic indexing using model vectors. - John R. Smith; Milind R. Naphade; Apostol Natsev (ICME, 2003)

MPEG-7 video automatic labeling system. - Ching-Yung Lin; Belle L. Tseng; Milind R. Naphade; Apostol Natsev; John R. Smith (ACM Multimedia, 2003)

User-trainable video annotation using multimodal cues. - Ching-Yung Lin; Milind R. Naphade; Apostol Natsev; Chalapathy Neti; John R. Smith; Belle L. Tseng; Harriet J. Nock; W. H. Adams (SIGIR, 2003)

New anchor selection methods for image retrieval. - Apostol Natsev; John R. Smith (Storage and Retrieval for Media Databases, 2003)

IBM Research TRECVID-2003 Video Retrieval System. - Arnon Amir; Marco Berg; Shih-Fu Chang; Winston H. Hsu; Giridharan Iyengar; Ching-Yung Lin; Milind R. Naphade; Apostol Natsev; Chalapathy Neti; Harriet J. Nock; John R. Smith; Belle L. Tseng; et al. (TRECVID, 2003)

Multimodal video search techniques: late fusion of speech-based retrieval and visual content-based retrieval. - Arnon Amir; Giridharan Iyengar; Ching-Yung Lin; Milind R. Naphade; Apostol Natsev; Chalapathy Neti; Harriet J. Nock; John R. Smith; Belle L. Tseng (ICASSP (3), 2004)

Over-complete representation and fusion for semantic concept detection. - Apostol Natsev; Milind R. Naphade; John R. Smith (ICIP, 2004)

Content transcoding middleware for pervasive geospatial intelligence access. - Ching-Yung Lin; Apostol Natsev; Belle L. Tseng; Matthew L. Hill; John R. Smith; Chung-Sheng Li (ICME, 2004)

Multi-granular detection of regional semantic concepts. - Milind R. Naphade; Apostol Natsev; Ching-Yung Lin; John R. Smith (ICME, 2004)

Semantic representation: search and mining of multimedia content. - Apostol Natsev; Milind R. Naphade; John R. Smith (KDD, 2004)

Validity-weighted model vector-based retrieval of video. - John R. Smith; Ching-Yung Lin; Milind R. Naphade; Apostol Natsev; Belle L. Tseng (Storage and Retrieval Methods and Applications for Multimedia, 2004)

IBM Research TRECVID 2004 Video Retrieval System. - Arnon Amir; Janne Argillander; Marco Berg; Shih-Fu Chang; Martin Franz; Winston H. Hsu; Giridharan Iyengar; John R. Kender; Lyndon S. Kennedy; Ching-Yung Lin; Milind R. Naphade; Apostol Natsev; et al. (TRECVID, 2004)

WALRUS: A Similarity Retrieval Algorithm for Image Databases. - Apostol Natsev; Rajeev Rastogi; Kyuseok Shim (IEEE Trans. Knowl. Data Eng., 2004)

Multimedia Research Challenges for Industry. - John R. Smith; Milind R. Naphade; Apostol Natsev; Jelena Tesic (CIVR, 2005)

Automatic discovery of query-class-dependent models for multimodal search. - Lyndon S. Kennedy; Apostol Natsev; Shih-Fu Chang (ACM Multimedia, 2005)

Learning the semantics of multimedia queries and concepts from a small number of examples. - Apostol Natsev; Milind R. Naphade; Jelena Tesic (ACM Multimedia, 2005)

A web-based system for collaborative annotation of large image and video collections: an evaluation and user study. - Timo Volkmer; John R. Smith; Apostol Natsev (ACM Multimedia, 2005)

IBM Research TRECVID-2005 Video Retrieval System. - Arnon Amir; Janne Argillander; Murray Campbell; Alexander Haubold; Giridharan Iyengar; Shahram Ebadollahi; Feng Kang; Milind R. Naphade; Apostol Natsev; John R. Smith; Jelena Tesic; Timo Volkmer (TRECVID, 2005)

Multimodal Search for Effective Video Retrieval. - Apostol Natsev (CIVR, 2006)

Assessing the Filtering and Browsing Utility of Automatic Semantic Concepts for Multimedia Retrieval. - Michael G. Christel; Milind R. Naphade; Apostol Natsev; Jelena Tesic (CVPR Workshops, 2006)

Semantic Multimedia Retrieval using Lexical Query Expansion and Model-Based Reranking. - Alexander Haubold; Apostol Natsev; Milind R. Naphade (ICME, 2006)

Exploring Automatic Query Refinement for Text-Based Video Retrieval. - Timo Volkmer; Apostol Natsev (ICME, 2006)

IBM Research TRECVID-2006 Video Retrieval System. - Murray Campbell; Alexander Haubold; Shahram Ebadollahi; Dhiraj Joshi; Milind R. Naphade; Apostol Natsev; Joachim Seidl; John R. Smith; Katya Scheinberg; Jelena Tesic; Lexing Xie (TRECVID, 2006)

Semantics reinforcement and fusion learning for multimedia streams. - Dhiraj Joshi; Milind R. Naphade; Apostol Natsev (CIVR, 2007)

IBM multimedia search and retrieval system. - Apostol Natsev; Jelena Tesic; Lexing Xie; Rong Yan; John R. Smith (CIVR, 2007)

Cluster-based data modeling for semantic video search. - Jelena Tesic; Apostol Natsev; John R. Smith (CIVR, 2007)

IBM multimodal interactive video threading. - Jelena Tesic; Apostol Natsev; Joachim Seidl; John R. Smith (CIVR, 2007)

A Greedy Performance Driven Algorithm for Decision Fusion Learning. - Dhiraj Joshi; Milind R. Naphade; Apostol Natsev (ICIP (6), 2007)

Digital Media Indexing on the Cell Processor. - Lurng-Kuo Liu; Qiang Liu; Apostol Natsev; Kenneth A. Ross; John R. Smith; Ana Lucia Varbanescu (ICME, 2007)

Data Modeling Strategies for Imbalanced Learning in Visual Search. - Jelena Tesic; Apostol Natsev; Lexing Xie; John R. Smith (ICME, 2007)

Dynamic Multimodal Fusion in Video Search. - Lexing Xie; Apostol Natsev; Jelena Tesic (ICME, 2007)

An Effective Strategy for Porting C++ Applications on Cell. - Ana Lucia Varbanescu; Henk J. Sips; Kenneth A. Ross; Qiang Liu; Lurng-Kuo Liu; Apostol Natsev; John R. Smith (ICPP, 2007)

Semantic concept-based query expansion and re-ranking for multimedia retrieval. - Apostol Natsev; Alexander Haubold; Jelena Tesic; Lexing Xie; Rong Yan (ACM Multimedia, 2007)

An efficient manual image annotation approach based on tagging and browsing. - Rong Yan; Apostol Natsev; Murray Campbell (MS, 2007)

IBM Research TRECVID-2007 Video Retrieval System. - Murray Campbell; Alexander Haubold; Ming Liu; Apostol Natsev; John R. Smith; Jelena Tesic; Lexing Xie; Rong Yan; Jun Yang 003 (TRECVID, 2007)

Web-based information content and its application to concept-based video retrieval. - Alexander Haubold; Apostol Natsev (CIVR, 2008)

IBM multimedia analysis and retrieval system. - Apostol Natsev; John R. Smith; Jelena Tesic; Lexing Xie; Rong Yan (CIVR, 2008)

Multi-query interactive image and video retrieval -: theory and practice. - Rong Yan; Apostol Natsev; Murray Campbell (CIVR, 2008)

A learning-based hybrid tagging and browsing approach for efficient manual image annotation. - Rong Yan; Apostol Natsev; Murray Campbell (CVPR, 2008)

IBM Research TRECVID-2008 Video Retrieval System. - Apostol Natsev; John R. Smith; Jelena Tesic; Lexing Xie; Rong Yan; Wei Jiang 001; Michele Merler (TRECVID, 2008)

Query-Adaptive Fusion for Multimodal Search. - Lyndon S. Kennedy; Shih-Fu Chang; Apostol Natsev (Proc. IEEE, 2008)

Formal Models and Hybrid Approaches for Efficient Manual Image Annotation and Retrieval. - Rong Yan; Apostol Natsev; Murray Campbell (Semantic Mining Technologies for Multimedia Databases, 2009)

Large-scale multimedia semantic concept modeling using robust subspace bagging and MapReduce. - Rong Yan; Marc-Olivier Fleury; Michele Merler; Apostol Natsev; John R. Smith (LS-MMRM@ACM Multimedia, 2009)

IBM Research TRECVID-2009 Video Retrieval System. - Apostol Natsev; Matthew L. Hill; John R. Smith; Lexing Xie; Rong Yan; Shenghua Bao; Dong Wang; Michele Merler; Yi Zhang (TRECVID, 2009)

Evaluating application mapping scenarios on the Cell/B.E. - Ana Lucia Varbanescu; Henk J. Sips; Kenneth A. Ross; Qiang Liu; Apostol Natsev; John R. Smith; Lurng-Kuo Liu (Concurr. Comput. Pract. Exp., 2009)

Hybrid Tagging and Browsing Approaches for Efficient Manual Image Annotation. - Rong Yan; Apostol Natsev; Murray Campbell (IEEE Multim., 2009)

The accuracy and value of machine-generated image tags: design and user evaluation of an end-to-end image tagging system. - Lexing Xie; Apostol Natsev; Matthew L. Hill; John R. Smith; Alex Phillips (CIVR, 2010)

Design and evaluation of an effective and efficient video copy detection system. - Apostol Natsev; Matthew L. Hill; John R. Smith (ICME, 2010)

Multimedia semantics: opportunities and challenges. - Apostol Natsev (Multimedia Information Retrieval, 2010)

Video genetics: a case study from YouTube. - John R. Kender; Matthew L. Hill; Apostol Natsev; John R. Smith; Lexing Xie (ACM Multimedia, 2010)

Probabilistic visual concept trees. - Lexing Xie; Rong Yan; Jelena Tesic; Apostol Natsev; John R. Smith (ACM Multimedia, 2010)

IBM Research TRECVID-2010 Video Copy Detection and Multimedia Event Detection System. - Matthew L. Hill; Gang Hua 001; Apostol Natsev; John R. Smith; Lexing Xie; Bert Huang; Michele Merler; Hua Ouyang; Mingyuan Zhou (TRECVID, 2010)

Towards large scale land-cover recognition of satellite images. - Noel C. F. Codella; Gang Hua 001; Apostol Natsev; John R. Smith (ICICS, 2011)

Social media use by government: from the routine to the critical. - Andrea L. Kavanaugh; Edward A. Fox; Steven D. Sheetz; Seungwon Yang; Lin Tzy Li; Travis Whalen; Donald J. Shoemaker; Paul Natsev; Lexing Xie (DG.O, 2011)

Tracking Visual Memes in Rich-Media Social Communities. - Lexing Xie; Apostol Natsev; John R. Kender; Matthew L. Hill; John R. Smith (ICWSM, 2011)

Image modality classification: a late fusion method based on confidence indicator and closeness matrix. - Xingzhi Sun 001; Leiguang Gong; Apostol Natsev; Xiaofei Teng; Li Tian; Tao Wang; Yue Pan (ICMR, 2011)

Visual memes in social media: tracking real-world news in YouTube videos. - Lexing Xie; Apostol Natsev; John R. Kender; Matthew L. Hill; John R. Smith (ACM Multimedia, 2011)

IBM Research and Columbia University TRECVID-2011 Multimedia Event Detection (MED) System. - Liangliang Cao; Shih-Fu Chang; Noel Codella; Courtenay V. Cotton; Dan Ellis; Leiguang Gong; Matthew L. Hill; Gang Hua 001; John R. Kender; Michele Merler; Yadong Mu; Apostol Natsev; et al. (TRECVID, 2011)

Scene Aligned Pooling for Complex Video Recognition. - Liangliang Cao; Yadong Mu; Apostol Natsev; Shih-Fu Chang; Gang Hua 001; John R. Smith (ECCV (2), 2012)

Video Event Detection Using Temporal Pyramids of Visual Semantics with Kernel Optimization and Model Subspace Boosting. - Noel C. F. Codella; Apostol Natsev; Gang Hua 001; Matthew L. Hill; Liangliang Cao; Leiguang Gong; John R. Smith (ICME, 2012)

Social media use by government: From the routine to the critical. - Andrea L. Kavanaugh; Edward A. Fox; Steven D. Sheetz; Seungwon Yang; Lin Tzy Li; Donald J. Shoemaker; Apostol Natsev; Lexing Xie (Gov. Inf. Q., 2012)

Multimedia Semantics: Interactions Between Content and Community. - Hari Sundaram; Lexing Xie; Munmun De Choudhury; Yu-Ru Lin; Apostol Natsev (Proc. IEEE, 2012)

Semantic Model Vectors for Complex Video Event Recognition. - Michele Merler; Bert Huang; Lexing Xie; Gang Hua 001; Apostol Natsev (IEEE Trans. Multim., 2012)

Tracking Large-Scale Video Remix in Real-World Events. - Lexing Xie; Apostol Natsev; Xuming He 001; John R. Kender; Matthew L. Hill; John R. Smith (IEEE Trans. Multim., 2013)

Efficient Large Scale Video Classification. - Balakrishnan Varadarajan; George Toderici; Sudheendra Vijayanarasimhan; Apostol Natsev (CoRR, 2015)

YouTube-8M: A Large-Scale Video Classification Benchmark. - Sami Abu-El-Haija; Nisarg Kothari; Joonseok Lee; Paul Natsev; George Toderici; Balakrishnan Varadarajan; Sudheendra Vijayanarasimhan (CoRR, 2016)

The Kinetics Human Action Video Dataset. - Will Kay; João Carreira 001; Karen Simonyan; Brian Zhang; Chloe Hillier; Sudheendra Vijayanarasimhan; Fabio Viola; Tim Green; Trevor Back; Paul Natsev; Mustafa Suleyman; Andrew Zisserman (CoRR, 2017)

The 2nd YouTube-8M Large-Scale Video Understanding Challenge. - Joonseok Lee; Apostol Natsev; Walter Reade; Rahul Sukthankar; George Toderici (ECCV Workshops (4), 2018)

Collaborative Deep Metric Learning for Video Understanding. - Joonseok Lee; Sami Abu-El-Haija; Balakrishnan Varadarajan; Apostol Natsev (KDD, 2018)

Large-Scale Training Framework for Video Annotation. - Seong Jae Hwang; Joonseok Lee; Balakrishnan Varadarajan; Ariel Gordon; Zheng Xu; Apostol Natsev (KDD, 2019)

EnsembleNet: End-to-End Optimization of Multi-headed Models. - Hanhan Li; Joe Yue-Hei Ng; Paul Natsev (CoRR, 2019)

Large Scale Video Representation Learning via Relational Graph Clustering. - Hyodong Lee; Joonseok Lee; Joe Yue-Hei Ng; Paul Natsev (CVPR, 2020)