@article{4306,
  abstract     = {{The coherent exciton-light coupling in pulse propagation experiments on the A-exciton resonance in bulk
CdSe is investigated over a broad intensity range. At low light intensities, polariton propagation beats due to
interference between excited states on both polariton branches are observed. In an intermediate intensity
regime, the temporal polariton beating is suppressed in consequence of exciton-exciton interaction. At the
highest light intensities, self-induced transmission and multiple pulse breakup are identified as a signature for
carrier density Rabi flopping. Exciton-phonon scattering is shown to gradually eliminate coherent nonlinear
propagation effects due to enhanced dephasing of the excitonic polarization. Calculations using the semiconductor
Maxwell-Bloch equations are in qualitative agreement with the experimental data.}},
  author       = {{Nielsen, N. C. and Linden, S. and Kuhl, J. and Förstner, Jens and Knorr, A. and Koch, S. W. and Giessen, H.}},
  issn         = {{0163-1829}},
  journal      = {{Physical Review B}},
  keywords     = {{tet_topic_polariton}},
  number       = {{24}},
  pages        = {{245202--245202--10}},
  publisher    = {{American Physical Society (APS)}},
  title        = {{{Coherent nonlinear pulse propagation on a free-exciton resonance in a semiconductor}}},
  doi          = {{10.1103/physrevb.64.245202}},
  volume       = {{64}},
  year         = {{2002}},
}

@inproceedings{5620,
  abstract     = {{Bei der Online-Marktforschung lässt sich mit Hilfe virtueller 3D-Welten das Konsumentenverhalten beobachten. Da die Struktur der dabei anfallenden Daten multidimensional ist und die marktforschungsrelevanten Anfragen eine hohe OLAP-Affinität aufweisen, wurde hierzu im Rahmen des Forschungsprojekts Benevit ein Data Warehouse konzipiert und realisiert. Im Rahmen einer Standardisierung der Protokollierung von Konsumentenaktivitäten und deren prototypischen Realisierung erwies sich der Data Warehouse/OLAP-Ansatz zur Speicherung, Analyse und Präsentation der Marktforschungsdaten als adäquates Instrumentenbündel.}},
  author       = {{Schryen, Guido and Schoenen, Markus}},
  booktitle    = {{Data Warehousing 2002}},
  pages        = {{103--119}},
  title        = {{{Data Warehouse in der Marktforschung - Analyse von Benutzeraktivitäten in virtuellen Welten}}},
  year         = {{2002}},
}

@article{5623,
  abstract     = {{Mit dem elektronischen Papier wird in der Displayforschung ein neuer materialtechnologischer Ansatz verfolgt: Elektronisches Papier besteht aus einer dünnen, flexiblen Folie, in der farbige Pigmente mittels elektrischer Felder ausgerichtet werden. Die Vorteile gegenüber traditionellen Technologien wie beispielsweise LCD-Displays bestehen zum einen in niedrigeren Herstellungskosten (niedrigere Produktionskosten und geringere Materialkosten) und einem geringeren Gewicht. Zum anderen entsteht eine bessere Lesbarkeit, da sich Reflexion, Kontrast und mögliche Betrachtungswinkel verbessern bzw. vergrößern. Diese Potenziale können bei Anzeigetafeln, Computerdisplays und mobilen Endgeräten ausgeschöpft werden. Mit der Eigenschaft, fast beliebige Materialien als Trägermedium zu verwenden, öffnet sich auch die Anwendungsmöglichkeit des biegsamen, elektronischen Mediums für Zeitungen und Zeitschriften. Die US-Unternehmen E Ink und Gyricon Media bieten eine zunehmend größere Produktpalette mit elektronischem Papier an.}},
  author       = {{Schryen, Guido and Karla, Jürgen}},
  journal      = {{Wirtschaftsinformatik}},
  keywords     = {{Elektronisches Papier, Elektronische Tinte, E Ink, Gyricon Media, Displays, Mobile Endger{\}},
  number       = {{6}},
  pages        = {{567--574}},
  publisher    = {{Springer}},
  title        = {{{Elektronisches Papier - Display-Technologie mit weitem Anwendungsspektrum}}},
  volume       = {{44}},
  year         = {{2002}},
}

@article{5669,
  author       = {{Schryen, Guido}},
  journal      = {{i-com. Zeitschrift für interaktive und kooperative Medien}},
  number       = {{3}},
  pages        = {{36--37}},
  publisher    = {{Oldenbourg; de Gruyter}},
  title        = {{{Elektronische Zeitung - das Erbe Gutenbergs?}}},
  year         = {{2002}},
}

@article{11727,
  abstract     = {{Automatic speech recognition of real-live broadcast news (BN) data (Hub-4) has become a challenging research topic in recent years. This paper summarizes our key efforts to build a large vocabulary continuous speech recognition system for the heterogenous BN task without inducing undesired complexity and computational resources. These key efforts included: - automatic segmentation of the audio signal into speech utterances; - efficient one-pass trigram decoding using look-ahead techniques; - optimal log-linear interpolation of a variety of acoustic and language models using discriminative model combination (DMC); - handling short-range and weak longer-range correlations in natural speech and language by the use of phrases and of distance-language models; - improving the acoustic modeling by a robust feature extraction, channel normalization, adaptation techniques as well as automatic script selection and verification. The starting point of the system development was the Philips 64k-NAB word-internal triphone trigram system. On the speaker-independent but microphone-dependent NAB-task (transcription of read newspaper texts) we obtained a word error rate of about 10\%. Now, at the conclusion of the system development, we have arrived at Philips at an DMC-interpolated phrase-based crossword-pentaphone 4-gram system. This system transcribes BN data with an overall word error rate of about 17\%.}},
  author       = {{Beyerlein, P. and Aubert, X. and Haeb-Umbach, Reinhold and Harris, M. and Klakow, D. and Wendemuth, A. and Molau, S. and Ney, N. and Pitz, Michael and Sixtus, A.}},
  journal      = {{Speech Communication}},
  number       = {{37}},
  pages        = {{109--131}},
  title        = {{{Large Vocabulary Continuous Speech Recognition of Broadcast News - The Philips/RWTH Approach}}},
  year         = {{2002}},
}

@inproceedings{11731,
  abstract     = {{Currently the future satellite navigation system Galileo and the third generation mobile communications system UMTS are on their way to the market in Europe. cdma2000 is under development in the USA and, furthermore, a new civil GPS signal in L2 band and the new frequency band L5 are added. In a hybrid receiver for satellite navigation and mobile radio communications, the possibility of an additional usage of the mobile radio signals for navigation purposes could also be a remedy to one problem of satellite navigation systems, which is the reduced location accuracy inside of buildings and urban canyons. A hybrid receiver with two fully separated receiver branches would lead to an increased bill of material and to increased power consumption in the receiver. This paper, therefore, introduces a hybrid receiver capable of evaluating Galileo/GPS as well as UMTS/cdma2000 signals with reduced computational efforts. Furthermore, the proposed structure performs a constructive superposition of the incoming paths to improve location accuracy.}},
  author       = {{Bischoff, Renke and Haeb-Umbach, Reinhold and Heinrichs, Guenther}},
  booktitle    = {{ION-GPS 2002}},
  title        = {{{A Joint Time Multiplex Receiver for UMTS and Galileo}}},
  year         = {{2002}},
}

@inproceedings{11733,
  abstract     = {{Current navigation systems like GPS (Global Positioning System) and its Russian counterpart GLONASS (Global Navigation Satellite System) only evaluate the direct signal path. The receivers treat the reflected paths also reaching the receiver antenna as disturbance which has to be suppressed. Multipath affects the tracking accuracy by resulting in a degeneration of the S-curve of the DLL (delay locked loop). Nowadays the future European systems GALILEO and GPSIIF/III with two new signals are on the way to the market and it is time to think about new receiver structures. Therefore we investigated if it is possible to use multipath for navigation constructively.}},
  author       = {{Bischoff, Renke and Haeb-Umbach, Reinhold and Schulz, Wolfgang and Heinrichs, Guenther}},
  booktitle    = {{IEEE 55th Vehicular Technology Conference (VTC 2002 Spring)}},
  keywords     = {{combined GALILEO/UMTS receiver, delay locked loop, delay lock loops, DLL, Global Positioning System, GLONASS, GPS, GPSIIF/III, mobile satellite communication, multipath channels, multipath receiver structure, radio receivers, RAKE receiver, S-curve}},
  pages        = {{1844--1848 vol.4}},
  title        = {{{Employment of a multipath receiver structure in a combined GALILEO/UMTS receiver}}},
  doi          = {{10.1109/VTC.2002.1002940}},
  volume       = {{4}},
  year         = {{2002}},
}

@inproceedings{11808,
  abstract     = {{Current location methods for cellular communication systems TOA and E-OTD exploit time delays and time differences of various base station signals measured in a mobile phone to determine its location. These methods assume line-of-sight (LOS) connections to all utilized base stations. Since mobile radio channels are mainly characterized by scattered propagation paths and non-line-of-sight (NLOS) propagation, bias errors occur when measured time delays and time differences are utilized in position calculation algorithms. In this paper, the distribution of the time error due to NLOS propagation is estimated based on the channel model proposed in [1]. In combination with actual channel measurements in [2] the NLOS time error and its probability distribution function is estimated. With this information being determined for each received signal, position calculation algorithms can utilize the reliability information to enhance positioning accuracy. [1] L. J. Greenstein, V. Erceg, Y. S. Yeh, M. V. Clark, {grqq}A new path-gain/delay-spread propagation model for digital cellular channels'', IEEE Transactions on Vehicular Technology, Vol. 46, No. 2, May 1997 [2] H. Asplund, {grqq}Wideband Channel Measurements in Central Stockholm'', T1P1.5/98-242r1}},
  author       = {{Hesse, Thomas and Bischoff, Renke and Schulz, Wolfgang and Haeb-Umbach, Reinhold}},
  booktitle    = {{International Symposium on Location Based Services for Cellular Users (LOCELLUS 2002)}},
  title        = {{{Estimation of Bias Location Error due to Absence of the LOS-Signal in a UMTS-System}}},
  year         = {{2002}},
}

@article{6074,
  abstract     = {{Presenting a masked prime leading a target influences the perceived onset of the masking target. This priming effect is explained by the asynchronous updating model: The prime initiates attentional allocation toward its location, which renders a trailing target at the same place consciously available earlier. In 3 experiments, this perceptual latency priming by leading primes was examined jointly with the effects of trailing primes in order to compare the explanation of the asynchronous updating model with the onset-averaging and the P-center hypotheses. Exp 1 (n=15, mean age 27.1 yrs) showed that an attended, as well as an unattended, prime leads to perceptual latency priming. In addition, a large effect of trailing primes on the onset of a target was found. As Exp 2 (n=13, mean age 26.5 yrs) demonstrated, this effect is quite robust, although smaller than that of a leading prime. In Exp 3 (n=13, mean age 24.8 yrs), masked primes were used. Under these conditions, no influence of tra}},
  author       = {{Scharlau, Ingrid}},
  issn         = {{0031-5117}},
  journal      = {{Perception & Psychophysics}},
  keywords     = {{attention, leading primes, trailing primes, temporal order perception, perceptual latency priming, Adult, Attention, Female, Fixation, Ocular, Humans, Male, Perceptual Masking, Random Allocation, Time Perception, Visual Perception, Attention, Masking, Priming, Stimulus Frequency, Temporal Frequency, Temporal Order (Judgment)}},
  number       = {{8}},
  pages        = {{1346 -- 1360}},
  title        = {{{Leading, but not trailing, primes influence temporal order perception: Further evidence for an attentional account of perceptual latency priming.}}},
  volume       = {{64}},
  year         = {{2002}},
}

@misc{47698,
  author       = {{Fricke, Birgitta}},
  keywords     = {{Diplomarbeit}},
  title        = {{{Construction of Pseudorandom Functions}}},
  year         = {{2002}},
}

@misc{47633,
  author       = {{Hoppe, Ulrich}},
  title        = {{{Implementierung und Evaluation eines MDS-Blockcodes mit unabhängigen Paritätssymbolen}}},
  year         = {{2002}},
}

@inbook{31247,
  author       = {{Elit, Stefan}},
  booktitle    = {{Das 'Ich' in der Frühen Neuzeit. Autobiographien – Selbstzeugnisse – Ego-Dokumente in geschichts- und literaturwissenschaftlicher Perspektive (Zeitenblicke 1 [2002], H. 2 [20.12.2002])}},
  editor       = {{Kraft, Stephan and Rutz, Andreas}},
  title        = {{{'Ich' war einmal. Zu literaturwiss. Problemhorizonten bei Subjektivität in Texten}}},
  year         = {{2002}},
}

@misc{18400,
  author       = {{Peckhaus, Volker}},
  booktitle    = {{zbMATH Open, Zbl. 0976.03001}},
  title        = {{{Born, Rainer, “Frege”, In: Stuart G. Shanker (Hg.), Routledge History of Philosophy, Bd. IX: Philosophy of Science, Logic and Mathematics in the Twentieth Century, Routledge: London 1996, 124–156}}},
  year         = {{2002}},
}

@misc{18398,
  author       = {{Peckhaus, Volker}},
  booktitle    = {{zbMATH Open, Zbl. 0976.01010}},
  title        = {{{Rusnock, Paul, “Philosophy of Mathematics: Bolzano’s Response to Kant and Lagrange”, Rev. Hist. Sci. 52 (1999), No.3–4, 399–427}}},
  year         = {{2002}},
}

@misc{18399,
  author       = {{Peckhaus, Volker}},
  booktitle    = {{zbMATH Open, Zbl. 0976.01017}},
  title        = {{{Kreiser, Lothar, Gottlob Frege. Leben – Werk – Zeit" Felix Meiner Verlag: Hamburg 2001}}},
  year         = {{2002}},
}

@misc{18406,
  author       = {{Peckhaus, Volker}},
  booktitle    = {{zbMATH Open, Zbl. 0983.00010}},
  title        = {{{Pechenkin, A. A., “Operationalism as the Philosophy of Soviet Physics: The Philosophical Background of L.I. Mandelstam and his School”, Synthese 124 (2000), 407–432}}},
  year         = {{2002}},
}

@misc{18401,
  author       = {{Peckhaus, Volker}},
  booktitle    = {{zbMATH Open, Zbl. 0981.01011}},
  title        = {{{Rodríguez-Consuegra, Francisco, “Nominal Definitions and Logical Consequence in the Peano School”, Theoria. Segunda Epoca 12, no. 28 (1997), 125–137}}},
  year         = {{2002}},
}

@misc{18408,
  author       = {{Peckhaus, Volker}},
  booktitle    = {{zbMATH Open, Zbl. 0987.00002}},
  title        = {{{Waldegg, Guillermina, “Ontological Convictions and Epistemological Obstacles in Bolzano’s Geometry”, Science and Education 10 (2001), 409–418}}},
  year         = {{2002}},
}

@misc{18409,
  author       = {{Peckhaus, Volker}},
  booktitle    = {{zbMATH Open,Zbl. 0990.03001}},
  title        = {{{Tait, W. W., “Gödel’s Unpublished Papers on Foundations of Mathematics”, Philosophia Mathematica (3) 9 (2001), 87–126}}},
  year         = {{2002}},
}

@misc{18407,
  author       = {{Peckhaus, Volker}},
  booktitle    = {{zbMATH Open, Zbl. 0984.03006}},
  title        = {{{Sandu, Gabriel/Hyttinen, Tapani, “IF Logic and the Foundations of Mathematics”, Synthese 126 (2001), 37–47}}},
  year         = {{2002}},
}