Real-time analysis of data from many sensors with neural networks

Much research has been conducted that uses sensor-based modules with dedicated software to automatically distinguish the user's situation or context. The best results were obtained when powerful sensors (such as cameras or GPS systems) and/or sensor-specific algorithms (like sound analysis) were applied A somewhat new approach is to replace the one smart sensor by many simple sensors. We argue that neural networks are ideal algorithms to analyze the data coming from these sensors and describe how we came to one specific algorithm that gives good results, by giving an overview of several requirements. Finally, wearable implementations are given to show the feasibility and benefits of this approach and its implications.

[1]  Teuvo Kohonen,et al.  Self-Organizing Maps , 2010 .

[2]  Gerd Kortuem,et al.  Context-aware, adaptive wearable computers as remote interfaces to 'intelligent' environments , 1998, Digest of Papers. Second International Symposium on Wearable Computers (Cat. No.98EX215).

[3]  Paul R. Cohen,et al.  Continuous Categories For a Mobile Robot , 1999, AAAI/IAAI.

[4]  Alex Pentland,et al.  Extracting context from environmental audio , 1998, Digest of Papers. Second International Symposium on Wearable Computers (Cat. No.98EX215).

[5]  Kristof Van Laerhoven,et al.  What shall we teach our pants? , 2000, Digest of Papers. Fourth International Symposium on Wearable Computers.

[6]  Arthur Flexer,et al.  Limitations of Self-organizing Maps for Vector Quantization and Multidimensional Scaling , 1996, NIPS.

[7]  James Church,et al.  Wearable sensor badge and sensor jacket for context awareness , 1999, Digest of Papers. Third International Symposium on Wearable Computers.

[8]  Toshio Odanaka,et al.  ADAPTIVE CONTROL PROCESSES , 1990 .

[9]  R. Bellman,et al.  V. Adaptive Control Processes , 1964 .

[10]  Teuvo Kohonen,et al.  Self-Organizing Maps, Second Edition , 1997, Springer Series in Information Sciences.

[11]  Karl Ernst Osthaus Van de Velde , 1920 .

[12]  Albrecht Schmidt,et al.  Advanced Interaction in Context , 1999, HUC.

[13]  Gregory D. Abowd,et al.  Towards a Better Understanding of Context and Context-Awareness , 1999, HUC.

[14]  Kristof Van Laerhoven Combining the Self-Organizing Map and K-Means Clustering for On-Line Classification of Sensor Data , 2001, ICANN.

[15]  Neal Lesh,et al.  Indoor navigation using a diverse set of cheap, wearable sensors , 1999, Digest of Papers. Third International Symposium on Wearable Computers.

[16]  Pieter D. Biemond,et al.  Wearable Sensor Badge & Sensor Jacket for Context Awareness , 1999 .

[17]  Alex Pentland,et al.  Visual contextual awareness in wearable computing , 1998, Digest of Papers. Second International Symposium on Wearable Computers (Cat. No.98EX215).

[18]  P. Langley Selection of Relevant Features in Machine Learning , 1994 .

[19]  Thad Starner,et al.  Finding location using omnidirectional video on a wearable computing platform , 2000, Digest of Papers. Fourth International Symposium on Wearable Computers.