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Dr Ioannis Andreopoulos

PhD, MIEEE

Senior Lecturer

Room 603, Roberts Building, UCL

Address:Department of Electronic & Electrical Engineering
University College London
Torrington Place
London
WC1E 7JE
Research Group:Communications and Information Systems
Personal Web Page:http://www.ee.ucl.ac.uk/~iandreop
E-mail: i.andreopoulos@ee.ucl.ac.uk
Telephone: +44 (0)20 7679 7303 / 37303 (internal)  
Fax:+44 (0)20 7388 9325

Yiannis Andreopoulos obtained the Electrical Engineering Diploma and an MSc degree from the University of Patras, Patras, Greece. He obtained the PhD in Applied Sciences from the University of Brussels (Belgium) in May 2005. During his post-doctoral work at the University of California Los Angeles (US) he performed research on cross-layer optimization of wireless media systems, video streaming, and theoretical aspects of rate-distortion-complexity modeling for multimedia systems. From Oct. 2006-Dec. 2007, he was Lecturer at the Electronic Engineering Department of Queen Mary University of London. Since Dec. 2007, he is Lecturer at the Electronic and Electrical Engineering Department of UCL.

During 2002-2003, Dr. Andreopoulos made several decisive contributions to the ISO/IEC JTC1/SC29/WG11 (Motion Picture Experts Group – MPEG) committee in the early exploration on scalable video coding. In 2007, he won the "Most-Cited Paper" award from the Elsevier EURASIP Journal Signal Processing: Image Communication.

Research areas of interest include:

  • Approximate signal processing, incremental refinement of computation for signal transforms and multimedia processing algorithms
  • Multimedia communications in unreliable packet-based networks (IEEE 802.11a/e WLANs, multi-hop wireless networks, the Internet)
  • Compressed sensing
  • Complexity-scalable coding systems, rate-distortion-complexity modelling of multimedia systems
  • Transform and filter-bank theory, adaptive spatio-temporal decompositions of signals
  • Transform realizations in custom hardware and programmable processors
  • Image and video coding

View Publications by Year - [Expand all / Hide all]

Jump to: 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | NULL
Number of items: 82.

2013

Andreopoulos, Y; (2013) Error tolerant multimedia stream processing: There's plenty of room at the top (of the system stack). IEEE Transactions on Multimedia , 15 (2) 291 - 303. 10.1109/TMM.2012.2232649.

Andreopoulos, Y; Chen, L-G; Evans, BL; Jiang, H; Kumar, R; (2013) Guest Editorial: Special Section on New Software/Hardware Paradigms for Error-Tolerant Multimedia Systems. IEEE Transactions on Multimedia , 15 , Article 2. 10.1109/TMM.2013.2238831.

2012

(2012) Advances in Multimedia Modeling - 18th International Conference, MMM 2012, Klagenfurt, Austria, January 4-6, 2012. Proceedings. In: Schoeffmann, K and Mérialdo, B and Hauptmann, AG and Ngo, C-W and Andreopoulos, Y and Breiteneder, C, (eds.) MMM. Springer

Anam, MA; Andreopoulos, Y; (2012) Throughput scaling of convolution for error-tolerant multimedia applications. IEEE Transactions on Multimedia , 14 (3 PART 2) 797 - 804. 10.1109/TMM.2012.2184742.

Anam, MA; Andreopoulos, Y; (2012) Throughput Scaling Of Convolution For Error-Tolerant Multimedia Applications. IEEE Transactions on Multimedia , 14 , Article 3-2. 10.1109/TMM.2012.2184742.

Anastasia, D; Andreopoulos, Y; (2012) Throughput-distortion computation of generic matrix multiplication: Toward a computation channel for digital signal processing systems. IEEE Transactions on Signal Processing , 60 (4) 2024 - 2037. 10.1109/TSP.2011.2176337.

Buranapanichkit, D; Andreopoulos, Y; (2012) Distributed time-frequency division multiple access protocol for wireless sensor networks. IEEE Wireless Communications Letters , 1 (5) 440 - 443. 10.1109/WCL.2012.062512.120245.

2011

Anastasia, D; Andreopoulos, Y; (2011) Throughput-Distortion Computation. CoRR , abs/1110.5765

Anastasia, D; Andreopoulos, Y; (2011) Throughput-precision computation for generic matrix multiplication: Toward a computation channel for high-performance digital signal processing. In: 17th DSP 2011 International Conference on Digital Signal Processing, Proceedings.

Verdicchio, F; Andreopoulos, Y; (2011) Distortion estimates for adaptive lifting transforms with noise. Image and Vision Computing , 29 (11) 744 - 758. 10.1016/j.imavis.2011.08.004.

Verdicchio, F; Andreopoulos, Y; (2011) Distortion estimates for adaptive temporal decompositions of video under displacement errors and quantization noise. In: Proceedings - International Conference on Image Processing, ICIP. (pp. 3701 - 3704).

2010

Anastasia, D; Andreopoulos, Y; (2010) Software designs of image processing tasks with incremental refinement of computation. IEEE Trans Image Process , 19 (8) 2099 - 2114. 10.1109/TIP.2010.2045702.

Anastasia, D; Andreopoulos, Y; (2010) Linear image processing operations with operational tight packing. IEEE Signal Processing Letters , 17 (4) 375 - 378. 10.1109/LSP.2010.2041583.

Anastasia, D; Andreopoulos, Y; (2010) Scheduling and energy-distortion tradeoffs with operational refinement of image processing. In: Proceedings -Design, Automation and Test in Europe, DATE. (pp. 1719 - 1724).

Andreopoulos, Y; Jiang, D; Demosthenous, A; (2010) Prediction-Based Incremental Refinement for Binomially-Factorized Discrete Wavelet Transforms. IEEE T SIGNAL PROCES , 58 (8) 4441 - 4447. 10.1109/TSP.2010.2048707.

2009

Anastasia, D; Andreopoulos, Y; (2009) Software designs of image processing tasks with incremental refinement of computation. In: IEEE Workshop on Signal Processing Systems, SiPS: Design and Implementation. (pp. 249 - 254).

Andreopoulos, Y; (2009) Comments on "phase-shifting for nonseparable 2-D haar wavelets". IEEE Transactions on Image Processing , 18 (8) 1897 - 1898. 10.1109/TIP.2009.2021085.

Kontorinis, N; Van Der Schaar, M; Andreopoulos, Y; (2009) Statistical framework for video decoding complexity modeling and prediction. IEEE Transactions on Circuits and Systems for Video Technology , 19 (7) 1000 - 1013. 10.1109/TCSVT.2009.2020256.

Schelkens, P; Andreopoulos, I; Barbarien, J; (2009) Conformance testing, reference software and implementations. In: Schelkens, P and Skodras, A and Ebrahimi, T, (eds.) The JPEG 2000 Suite. (? - ?). Wiley

2008

Andreopoulos, Y; Patras, I; (2008) Incremental refinement of image salient-point detection. IEEE Trans Image Process , 17 (9) 1685 - 1699. 10.1109/TIP.2008.2001051.

Andreopoulos, Y; van der Schaar, M; (2008) Incremental refinement of computation for the discrete wavelet transform. IEEE Transactions on Signal Processing , 56 (1) 140 - 157. 10.1109/TSP.2007.906727.

Angelopoulou, ME; Cheung, PYK; Masselos, K; Andreopoulos, Y; (2008) Implementation and comparison of the 5/3 lifting 2D discrete wavelet transform computation schedules on FPGAs. Journal of Signal Processing Systems , 51 (1) 3 - 21. 10.1007/s11265-007-0139-5.

Foo, B; van der Schaar, M; Andreopoulos, Y; (2008) Analytical rate-distortion-complexity modeling of wavelet-based video coders. IEEE Transactions on Signal Processing , 56 (2) 797 - 815. 10.1109/TSP.2007.906685.

Patras, I; Andreopoulos, Y; (2008) Incremental salient point detection. In: ICASSP. (pp. 1337 - 1340). IEEE

2007

Andreopoulos, I; Mastronarde, N; van der Schaar, M; (2007) Cross-layer Optimized Video Streaming over Wireless Multi-hop Mesh Networks. In: Bing, B, (ed.) Emerging Technologies in Wireless LANs. (? - ?). Cambridge University Press

Andreopoulos, Y; Van Der Schaar, M; (2007) Adaptive linear prediction for resource estimation of video decoding. IEEE Transactions on Circuits and Systems for Video Technology , 17 (6) 751 - 764. 10.1109/TCSVT.2007.896662.

Andreopoulos, Y; van der Schaar, M; (2007) Complexity-constrained video bitstream shaping. IEEE Transactions on Signal Processing , 55 (5 I) 1967 - 1974. 10.1109/TSP.2006.890867.

Andreopoulos, Y; van der Schaar, M; (2007) Generalized phase shifting for M-band discrete wavelet packet transforms. IEEE Transactions on Signal Processing , 55 (2) 742 - 747. 10.1109/TSP.2006.885743.

Andreopoulos, Y; van der Schaar, M; Li, Q; (2007) Streaming-viability analysis and packet scheduling for video over in-vehicle wireless networks. IEEE Transactions on Vehicular Technology , 56 (6 I) 3533 - 3549. 10.1109/TVT.2007.901927.

Andreopoulos, Y; Van Der Schaar, M; Tong, X; (2007) Distortion-driven video streaming over multihop wireless networks with path diversity. IEEE Transactions on Mobile Computing , 6 (12) 1343 - 1356. 10.1109/TMC.2007.1063.

Foo, B; Andreopoulos, Y; Van Der Schaar, M; (2007) Analytical complexity modeling of wavelet-based video coders. In: ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings.

2006

Andreopoulos, Y; Keralapura, R; Van Der Schaar, M; Chuah, C-N; (2006) Failure-aware, open-loop, adaptive video streaming with packet-level optimized redundancy. IEEE Transactions on Multimedia , 8 (6) 1274 - 1290. 10.1109/TMM.2006.884607.

Andreopoulos, Y; Mastronarde, N; Schaar, MVD; (2006) Cross-Layer Optimized Video Streaming Over Wireless Multihop Mesh Networks. IEEE Journal on Selected Areas in Communications , 24 , Article 11. 10.1109/JSAC.2006.881614.

Andreopoulos, Y; Van Der Schaar, M; (2006) Incremental refinement of computation for the discrete wavelet transform. In: Proceedings - International Conference on Image Processing, ICIP.

Andreopoulos, Y; Van Der Schaar, M; Hu, Z; Heo, S; Suh, S; (2006) Scalable resource management for video streaming over IEEE802.11A/E. In: ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings.

Angelopoulou, M; Masselos, K; Peter, C; Andreopoulos, Y; (2006) A comparison of 2-D discrete wavelet transform computation schedules on FPGAs. In: Proceedings - 2006 IEEE International Conference on Field Programmable Technology, FPT 2006. (pp. 181 - 188).

Masselos, K; Andreopoulos, Y; Stouraitis, T; (2006) Performance comparison of two-dimensional discrete wavelet transform computation schedules on a VLIW digital signal processor. IEE Proceedings: Vision, Image and Signal Processing , 153 (2) 173 - 180. 10.1049/ip-vis:20045218.

Masselos, K; Andreopoulos, Y; Stouraitis, T; (2006) Execution time comparison of lifting-based 2-D wavelet transform implementations on a VLIW DSP. In: Proceedings - IEEE International Symposium on Circuits and Systems. (pp. 923 - 926).

Mastronarde, N; Andreopoulos, Y; Van Der Schaar, M; Krishnaswamy, D; Vicente, J; (2006) Cross-layer video streaming over 802.11e-enabled wireless mesh networks. In: ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings.

Van Der Schaar, M; Andreopoulos, Y; Hu, Z; (2006) Optimized scalable video streaming over IEEE 802.11a/e HCCA Wireless networks under delay constraints. IEEE Transactions on Mobile Computing , 5 (6) 755 - 768. 10.1109/TMC.2006.81.

2005

Andreopoulos, Y; Munteanu, A; Van Der Auwera, G; Cornelis, J; Schelkens, P; (2005) Single-rate calculation of overcomplete discrete wavelet transforms for scalable coding applications. Signal Processing , 85 (6) 1103 - 1124. 10.1016/j.sigpro.2005.01.006.

Andreopoulos, Y; Munteanu, A; Van der Auwera, G; Cornelis, JPH; Schelkens, P; (2005) Complete-to-overcomplete discrete wavelet transforms: Theory and applications. IEEE Transactions on Signal Processing , 53 (4) 1398 - 1412. 10.1109/TSP.2005.843707.

Barbarien, J; Munteanu, A; Verdicchio, F; Andreopoulos, Y; Cornelis, J; Schelkens, P; (2005) Motion and texture rate-allocation for prediction-based scalable motion-vector coding. Sig. Proc.: Image Comm. , 20 , Article 4. 10.1016/j.image.2004.12.006.

Turaga, DS; Schaar, MVD; Andreopoulos, Y; Munteanu, A; Schelkens, P; (2005) Unconstrained motion compensated temporal filtering (UMCTF) for efficient and flexible interframe wavelet video coding. Sig. Proc.: Image Comm. , 20 , Article 1. 10.1016/j.image.2004.08.006.

Van Schaar, MD; Andreopoulos, Y; (2005) Rate-distortion-complexity modeling for network and receiver aware adaptation. IEEE Transactions on Multimedia , 7 (3) 471 - 479. 10.1109/TMM.2005.846790.

2004

Andreopoulos, Y; Munteanu, A; Barbarien, J; Cornelis, J; Schelkens, P; Van Der Schaar, M; (2004) In-band motion compensated temporal filtering. Signal Processing: Image Communication , 19 (7 SPEC. ISS.) 653 - 673. 10.1016/j.image.2004.05.007.

Andreopoulos, Y; Munteanu, A; van der Schaar, M; Cornelis, J; Schelkens, P; (2004) Comparison between "t+2D" and "2D+t" architectures with advanced motion compensated temporal filtering. UNSPECIFIED

Andreopoulos, Y; Verdicchio, F; Barbarien, J; Munteanu, A; van der Schaar, M; Schelkens, P; (2004) Response to call for proposals on scalable video coding technology. UNSPECIFIED

Barbarien, J; Munteanu, A; Andreopoulos, Y; Verdicchio, F; Cornelis, J; Schelkens, P; (2004) Prediction-based scalable motion vector coding. UNSPECIFIED

Barbarien, J; Munteanu, A; Verdicchio, F; Andreopoulos, Y; Cornelis, J; Schelkens, P; (2004) Scalable motion vector coding. Electronics Letters , 40 (15) 932 - 934. 10.1049/el:20040490.

Barbarien, J; Munteanu, A; Verdicchio, F; Andreopoulos, Y; Cornelis, J; Schelkens, P; (2004) Scalable motion vector coding. In: Proceedings - International Conference on Image Processing, ICIP. (pp. 1321 - 1324).

Barbarien, J; Munteanu, A; Verdicchio, F; Andreopoulos, Y; Cornelis, J; Schelkens, P; (2004) Scalable motion vector coding. In: Tescher, AG, (ed.) APPLICATIONS OF DIGITAL IMAGE PROCESSING XXVII, PTS 1AND 2. (pp. 395 - 409). SPIE-INT SOC OPTICAL ENGINEERING

Barbarien, J; Munteanu, A; Verdicchio, F; Andreopoulos, Y; Cornelis, J; Schelkens, P; (2004) Scalable motion vector coding. In: ICIP: 2004 INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOLS 1- 5. (pp. 1321 - 1324). IEEE

Clerckx, T; Verdicchio, F; Munteanu, A; Andreopoulos, Y; Devos, H; Eeckhaut, H; ... Peter, S; + view all (2004) Complexity scalable motion compensated temporal filtering. In: Tescher, AG, (ed.) APPLICATIONS OF DIGITAL IMAGE PROCESSING XXVII, PTS 1AND 2. (pp. 116 - 127). SPIE-INT SOC OPTICAL ENGINEERING

Schaar, MVD; Andreopoulos, Y; Li, Q; (2004) Real-time ubiquitous multimedia streaming using rate-distortion-complexity models. In: GLOBECOM. (pp. 639 - 643). IEEE

Verdicchio, F; Andreopoulos, Y; Clerckx, T; Barbarien, J; Munteanu, A; Cornelis, J; Schelkens, P; (2004) Scalable video coding based on motion-compensated temporal filtering: Complexity and functionality analysis. In: ICIP: 2004 INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOLS 1- 5. (pp. 2845 - 2848). IEEE

Verdicchio, F; Andreopoulos, Y; Clerckx, T; Barbarien, J; Munteanu, A; Cornells, J; Schelkens, P; (2004) Scalable video coding based on motion-compensated temporal filtering: Complexity and functionality analysis. In: Proceedings - International Conference on Image Processing, ICIP. (pp. 2845 - 2848).

2003

Andreopoulos, Y; Barbarien, J; Verdicchio, F; Munteanu, A; van der Schaar, M; Cornelis, J; Schelkens, P; (2003) Response to call for evidence on scalable video coding. UNSPECIFIED

Andreopoulos, Y; Munteanu, A; Barbarien, J; Schelkens, P; Cornelis, J; Van der Schaar, M; (2003) Complete-to-overcomplete discrete wavelet transforms for scalable video coding with MCTF. Proceedings of SPIE - The International Society for Optical Engineering , 5150 I 719 - 731. 10.1117/12.509887.

Andreopoulos, Y; Munteanu, A; Barbarien, J; Schelkens, P; Cornelis, J; Van Der Schaar, M; (2003) Fully-scalable wavelet video coding using in-band motion compensated temporal filtering. In: ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. (pp. 417 - 420).

Andreopoulos, Y; Munteanu, A; Schelkens, P; Cornelis, J; Van der Schaar, M; (2003) Spatio-temporal-SNR scalable wavelet coding with motion-compensated DCT base-layer architectures. In: IEEE International Conference on Image Processing. (pp. 795 - 798).

Andreopoulos, Y; Schelkens, P; Cornelis, J; Lafruit, G; Masselos, K; (2003) High-level cache modeling for 2-D discrete wavelet transform implementations. Journal of VLSI Signal Processing Systems for Signal, Image, and Video Technology , 34 (3) 209 - 226. 10.1023/A:1023244201750.

Barbarien, J; Andreopoulos, Y; Munteanu, A; Schelkens, P; Cornelis, J; (2003) Motion vector coding for in-band motion compensated temporal filtering. In: IEEE International Conference on Image Processing. (pp. 783 - 786).

Munteanu, A; Andreopoulos, Y; Schelkens, P; Cornelis, J; Van der Schaar, M; (2003) Control of the distortion variation in video coding systems based on motion compensated temporal filtering. In: IEEE International Conference on Image Processing. (pp. 61 - 64).

Schelkens, P; Andreopoulos, Y; Barbarien, J; Clerckx, T; Verdicchio, F; Munteanu, A; van der Schaar, M; (2003) A comparative study of scalable video coding schemes utilizing wavelet technology. In: Truchetet, F, (ed.) WAVELET APPLICATIONS IN INDUSTRIAL PROCESSING. (pp. 147 - 156). SPIE-INT SOC OPTICAL ENGINEERING

2002

Andreopoulos, Y; Masselos, K; Schelkens, P; Lafruit, G; Cornelis, J; (2002) Cache misses and energy-dissipation results for JPEG-2000 filtering. In: Skodras, AN and Constantinides, AG, (eds.) 2002 14th International Conference on Digital Signal Processing, Proceedings: DSP 2002: July 1-3, 2002, Conference Centre "P.M. Nomikos", Santorini, Hellas (Greece). (pp. 201 - 209). IEEE: Piscataway, US.

Andreopoulos, Y; Munteanu, A; Schelkens, P; van der Schaar, M; Cornelis, J; (2002) Control of the distortion variation in motion compensated temporal filtering. UNSPECIFIED

Andreopoulos, Y; Munteanu, A; Van der Auwera, G; Schelkens, P; Cornelis, J; (2002) A new method for complete-to-overcomplete discrete wavelet transforms. In: Skodras, AN and Constantinides, AG, (eds.) 2002 14th International Conference on Digital Signal Processing, Proceedings: DSP 2002: July 1-3, 2002, Conference Centre "P.M. Nomikos", Santorini, Hellas (Greece). (pp. 501 - 504). IEEE: Piscataway, US.

Andreopoulos, Y; Munteanu, A; Van Der Auwera, G; Schelkens, P; Cornelis, J; (2002) Scalable wavelet video-coding with in-band prediction - Implementation and experimental results. In: IEEE International Conference on Image Processing.

Andreopoulos, Y; Munteanu, A; Van der Auwera, G; Schelkens, P; Cornelis, J; (2002) Wavelet-based fine granularity scalable video coding with in-band prediction. UNSPECIFIED

Andreopoulos, Y; van der Schaar, M; Munteanu, A; Barbarien, J; Schelkens, P; Cornelis, J; (2002) Open-loop, in-band, motion-compensated temporal filtering for objective full-scalability in wavelet video coding. UNSPECIFIED

Lafruit, G; Andreopoulos, Y; Masschelein, B; (2002) Reduced memory requirements in modified JPEG2000 codec. In: 2002 14th International Conference on Digital Signal Processing, Proceedings, DSP 2002: July 1-3, 2002, Conference Centre "P.M. NOMIKOS", Santorini, Hellas (Greece). (pp. 219 - 226). IEEE: Piscataway, US.

van der Schaar, M; Ye, J; Andreopoulos, Y; Munteanu, A; (2002) Fully scalable 3-D overcomplete wavelet video coding using adaptive motion compensated temporal filtering. UNSPECIFIED

2001

Andreopoulos, Y; Schelkens, P; Cornelis, J; (2001) Analysis of wavelet transform implementations for image and texture coding applications in programmable platforms. In: IEEE Workshop on Signal Processing Systems, SiPS: Design and Implementation. (pp. 273 - 284).

Andreopoulos, Y; Schelkens, P; Zervas, ND; Stouraitis, T; Goutis, CE; Cornelis, J; (2001) A wavelet-tree image coding system with efficient memory utilization. In: 2001 IEEE International Conference on Acoustics, Speech, and Signal Processing: Proceedings: 7-11 May , 2001, Salt Palace Convention Center, Salt Lake City, Utah, USA. (pp. 1709 - 1712). IEEE: Piscataway, US.

Andreopoulos, Y; Zervas, ND; Lafruit, G; Schelkens, P; Stouraitis, T; Goutis, CE; Cornelis, J; (2001) A local wavelet transform implementation versus an optimal row-column algorithm for the 2D multilevel decomposition. In: ICIP (3). (pp. 330 - 333).

Spiliotopoulos, V; Zervas, ND; Andreopoulos, Y; Anagnostopoulos, G; Goutis, CE; (2001) Quantization effect on VLSI implementations for the 9/7 DWT filters. In: ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. (pp. 1197 - 1200).

Zervas, ND; Anagnostopoulos, GP; Spiliotopoulos, V; Goutis, CE; Andreopoulos, Y; (2001) Evaluation of design alternatives for the 2-D-discrete wavelet transform. IEEE Transactions on Circuits and Systems for Video Technology , 11 (12) 1246 - 1262. 10.1109/76.974679.

2000

Andreopoulos, I; Karayiannis, YA; Stouraitis, T; (2000) A hybrid image compression algorithm based on fractal coding and wavelet transform. In: ISCAS 2000: IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS - PROCEEDINGS, VOL III. (pp. 37 - 40). IEEE

Masselos, K; Karayiannis, Y; Andreopoulos, I; Stouraitis, T; (2000) Development of a power efficient image coding algorithm based on integer wavelet transform. In: ICECS 2000: 7TH IEEE INTERNATIONAL CONFERENCE ON ELECTRONICS, CIRCUITS & SYSTEMS, VOLS I AND II. (pp. 457 - 460). IEEE

NULL

Barbarien, J; Munteanu, A; Schelkens, P; Andreopoulos, I; Methods and apparatus for coding of motion vectors.

Van Der Auwera, G; Andreopoulos, I; Munteanu, A; Schelkens, P; Cornelis, J; Method and system for subband encoding and decoding of an overcomplete representation of the data structure. 7,876,820.

This list was generated on Mon Dec 9 15:05:28 2013 GMT.

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