TY - CHAP A1 - Schäfer, Patrick A1 - Dreßler, Sebastian T1 - Shooting Audio Recordings of Insects with SFA T2 - AmiBio Workshop, Bonn, Germany Y1 - 2013 ER - TY - GEN A1 - Birkenheuer, Georg A1 - Blunk, Dirk A1 - Breuers, Sebastian A1 - Brinkmann, André A1 - d. Santos Vieira, I. A1 - Fels, Gregor A1 - Gesing, Sandra A1 - Grunzke, Richard A1 - Herres-Pawlis, Sonja A1 - Kohlbacher, Oliver A1 - Kruber, Nico A1 - Krüger, Jens A1 - Lang, U. A1 - Packschies, Lars A1 - Müller-Pfefferkorn, Ralph A1 - Schäfer, Patrick A1 - Schmalz, Hans-Günther A1 - Steinke, Thomas A1 - Warzecha, Klaus Dieter A1 - Wewior, Martin T1 - MoSGrid – A Molecular Simulation Grid as a new tool in Computational Chemistry, Biology and Material Science T2 - 6. German Conference on Chemoinformatics Y1 - 2010 N1 - Free software session and poster ER - TY - CHAP A1 - Krüger, Jens A1 - Birkenheuer, Georg A1 - Blunk, Dirk A1 - Breuers, Sebastian A1 - Brinkmann, André A1 - Fels, Gregor A1 - Gesing, Sandra A1 - Grunzke, Richard A1 - Herres-Pawlis, Sonja A1 - Kohlbacher, Oliver A1 - Kruber, Nico A1 - Lang, U. A1 - Packschies, Lars A1 - Müller-Pfefferkorn, Ralph A1 - Schäfer, Patrick A1 - Schmalz, Hans-Günther A1 - Steinke, Thomas A1 - Warzecha, Klaus Dieter A1 - Wewior, Martin T1 - Molecular Simulation Grid T2 - 6. German Conference on Chemoinformatics Y1 - 2010 PB - Gesellschaft Deutscher Chemiker (GDCh) ER - TY - GEN A1 - Schäfer, Patrick T1 - Bag-Of-SFA-Symbols in Vector Space (BOSS VS) N2 - Time series classification mimics the human understanding of similarity. When it comes to larger datasets, state of the art classifiers reach their limits in terms of unreasonable training or testing times. One representative example is the 1-nearest-neighbor DTW classifier (1-NN DTW) that is commonly used as the benchmark to compare to and has several shortcomings: it has a quadratic time and it degenerates in the presence of noise. To reduce the computational complexity lower bounding techniques or recently a nearest centroid classifier have been introduced. Still, execution times to classify moderately sized datasets on a single core are in the order of hours. We present our Bag-Of-SFA-Symbols in Vector Space (BOSS VS) classifier that is robust and accurate due to invariance to noise, phase shifts, offsets, amplitudes and occlusions. We show that it is as accurate while being multiple orders of magnitude faster than state of the art classifiers. Using the BOSS VS allows for mining massive time series datasets and real-time analytics. T3 - ZIB-Report - 15-30 KW - Time Series KW - Classification KW - Data Mining Y1 - 2015 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:0297-zib-54984 SN - 1438-0064 ER - TY - JOUR A1 - Schäfer, Patrick T1 - The BOSS is concerned with time series classification in the presence of noise JF - Data Mining and Knowledge Discovery Y1 - 2014 U6 - https://doi.org/10.1007/s10618-014-0377-7 VL - 29 IS - 6 SP - 1505 EP - 1530 PB - Springer ER - TY - JOUR A1 - Schäfer, Patrick T1 - Experiencing the Shotgun Distance for Time Series Analysis JF - Transactions on Machine Learning and Data Mining Y1 - 2014 SN - 1864-9734 VL - 7 IS - 1 SP - 3 EP - 25 ER - TY - CHAP A1 - Schäfer, Patrick T1 - Towards Time Series Classification without Human Preprocessing T2 - MLDM 2014 Y1 - 2014 U6 - https://doi.org/10.1007/978-3-319-08979-9_18 VL - 8556 SP - 228 EP - 242 ER - TY - JOUR A1 - Potamitis, Ilyas A1 - Schäfer, Patrick T1 - On Classifying Insects from their Wing-Beat: New Results JF - Ecology and acoustics: emergent properties from community to landscape, Paris, France Y1 - 2014 ER - TY - JOUR A1 - Krüger, Jens A1 - Grunzke, Richard A1 - Gesing, Sandra A1 - Breuers, Sebastian A1 - Brinkmann, André A1 - de la Garza, Luis A1 - Kohlbacher, Oliver A1 - Kruse, Martin A1 - Nagel, Wolfgang A1 - Packschies, Lars A1 - Müller-Pfefferkorn, Ralph A1 - Schäfer, Patrick A1 - Schärfe, Charlotta A1 - Steinke, Thomas A1 - Schlemmer, Tobias A1 - Warzecha, Klaus Dieter A1 - Zink, Andreas A1 - Herres-Pawlis, Sonja T1 - The MoSGrid Science Gateway - A Complete Solution for Molecular Simulations JF - Journal of Chemical Theory and Computation Y1 - 2014 U6 - https://doi.org/10.1021/ct500159h VL - 10 IS - 6 SP - 2232 EP - 2245 ER - TY - JOUR A1 - Schäfer, Patrick T1 - Scalable time series classification JF - Data Mining and Knowledge Discovery N2 - Time series classification tries to mimic the human understanding of similarity. When it comes to long or larger time series datasets, state-of-the-art classifiers reach their limits because of unreasonably high training or testing times. One representative example is the 1-nearest-neighbor dynamic time warping classifier (1-NN DTW) that is commonly used as the benchmark to compare to. It has several shortcomings: it has a quadratic time complexity in the time series length and its accuracy degenerates in the presence of noise. To reduce the computational complexity, early abandoning techniques, cascading lower bounds, or recently, a nearest centroid classifier have been introduced. Still, classification times on datasets of a few thousand time series are in the order of hours. We present our Bag-Of-SFA-Symbols in Vector Space classifier that is accurate, fast and robust to noise. We show that it is significantly more accurate than 1-NN DTW while being multiple orders of magnitude faster. Its low computational complexity combined with its good classification accuracy makes it relevant for use cases like long or large amounts of time series or real-time analytics. Y1 - 2015 U6 - https://doi.org/10.1007/s10618-015-0441-y SP - 1 EP - 26 ER - TY - THES A1 - Schäfer, Patrick T1 - Scalable Time Series Similarity Search for Data Analytics Y1 - 2015 UR - http://edoc.hu-berlin.de/docviews/abstract.php?id=42117 ER - TY - JOUR A1 - Grunzke, Richard A1 - Breuers, Sebastian A1 - Gesing, Sandra A1 - Herres-Pawlis, Sonja A1 - Kruse, Martin A1 - Blunk, Dirk A1 - de la Garza, Luis A1 - Packschies, Lars A1 - Schäfer, Patrick A1 - Schärfe, Charlotta A1 - Schlemmer, Tobias A1 - Steinke, Thomas A1 - Schuller, Bernd A1 - Müller-Pfefferkorn, Ralph A1 - Jäkel, René A1 - Nagel, Wolfgang A1 - Atkinson, Malcolm A1 - Krüger, Jens T1 - Standards-based metadata management for molecular simulations JF - Concurrency and Computation: Practice and Experience Y1 - 2013 U6 - https://doi.org/10.1002/cpe.3116 ER -