@article{35992, abstract = {{In this paper new semiparametric generalized autoregressive conditional heteroscedasticity (GARCH) models with long memory are introduced. A multiplicative decomposition of the volatility into a conditional component and an unconditional component is assumed. The estimation of the latter is carried out by means of a data-driven local polynomial smoother. According to the revised recommendations by the Basel Committee on Banking Supervision to measure market risk in the banks’ trading books, these new semiparametric GARCH models are applied to obtain rolling one-step ahead forecasts for the value-at-risk and expected shortfall (ES) for market risk assets. Standard regulatory traffic-light tests and a newly introduced traffic-light test for the ES are carried out for all models. In addition, model performance is assessed via a recently introduced model selection criterion. The practical relevance of our proposal is demonstrated by a comparative study. Our results indicate that semiparametric long-memory GARCH models are a meaningful substitute for their conventional, parametric counterparts. }}, author = {{Letmathe, Sebastian and Feng, Yuanhua and Uhde, André}}, journal = {{Journal of Risk}}, keywords = {{long memory, generalized autoregressive conditional heteroscedasticity (GARCH) models, value-at-risk (VaR), expected shortfall (ES), traffic-light test, backtesting}}, number = {{2}}, title = {{{Semiparametric GARCH models with long memory applied to Value at Risk and Expected Shortfall}}}, volume = {{25}}, year = {{2022}}, } @article{29317, abstract = {{In this paper new semiparametric GARCH models with long memory are in- troduced. The estimation of the nonparametric scale function is carried out by an adapted version of the SEMIFAR algorithm (Beran et al., 2002). Recurring on the revised recommendations by the Basel Committee to measure market risk in the banks' trading books (Basel Committee on Banking Supervision, 2013), the semi- parametric GARCH models are applied to obtain rolling one-step ahead forecasts for the Value at Risk (VaR) and Expected Shortfall (ES) for market risk assets. In addition, standard regulatory traffic light tests (Basel Committee on Banking Supervision, 1996) and a newly introduced traffic light test for the ES are carried out for all models. The practical relevance of our proposal is demonstrated by a comparative study. Our results indicate that semiparametric long memory GARCH models are an attractive alternative to their conventional, parametric counterparts.}}, author = {{Letmathe, Sebastian and Feng, Yuanhua and Uhde, André}}, journal = {{Journal of Risk}}, keywords = {{Semiparametric, long memory, GARCH models, forecasting, Value at Risk, Expected Shortfall, traffic light test, Basel Committee on Banking Supervision}}, title = {{{Semiparametric GARCH models with long memory applied to Value at Risk and Expected Shortfall}}}, doi = {{10.21314/JOR.2022.044}}, year = {{2022}}, } @inproceedings{10676, author = {{Ho, Nam and Kaufmann, Paul and Platzner, Marco}}, booktitle = {{2017 International Conference on Field Programmable Technology (ICFPT)}}, keywords = {{Linux, cache storage, microprocessor chips, multiprocessing systems, LEON3-Linux based multicore processor, MiBench suite, block sizes, cache adaptation, evolvable caches, memory-to-cache-index mapping function, processor caches, reconfigurable cache mapping optimization, reconfigurable hardware technology, replacement strategies, standard Linux OS, time a complete hardware implementation, Hardware, Indexes, Linux, Measurement, Multicore processing, Optimization, Training}}, pages = {{215--218}}, title = {{{Evolvable caches: Optimization of reconfigurable cache mappings for a LEON3/Linux-based multi-core processor}}}, doi = {{10.1109/FPT.2017.8280144}}, year = {{2017}}, } @article{17181, abstract = {{The classic mapping metaphor posits that children learn a word by mapping it onto a concept of an object or event. However, we believe that a mapping metaphor cannot account for word learning, because even though children focus attention on objects, they do not necessarily remember the connection between the word and the referent unless it is framed pragmatically, that is, within a task. Our theoretical paper proposes an alternative mechanism for word learning. Our main premise is that word learning occurs as children accomplish a goal in cooperation with a partner. We follow Bruner's (1983) idea and further specify pragmatic frames as the learning units that drive language acquisition and cognitive development. These units consist of a sequence of actions and verbal behaviors that are co-constructed with a partner to achieve a joint goal. We elaborate on this alternative, offer some initial parametrizations of the concept, and embed it in current language learning approaches.}}, author = {{Rohlfing, Katharina and Wrede, Britta and Vollmer, Anna-Lisa and Oudeyer, Pierre-Yves}}, issn = {{1664-1078}}, journal = {{FRONTIERS IN PSYCHOLOGY}}, keywords = {{language acquisition, pragmatics, infants' social learning, frames, learning and memory, developmental robotics}}, publisher = {{Frontiers Media Sa}}, title = {{{An Alternative to Mapping a Word onto a Concept in Language Acquisition: Pragmatic Frames}}}, doi = {{10.3389/fpsyg.2016.00470}}, volume = {{7}}, year = {{2016}}, } @inproceedings{10673, author = {{Ho, Nam and Ahmed, Abdullah Fathi and Kaufmann, Paul and Platzner, Marco}}, booktitle = {{Proc. NASA/ESA Conf. Adaptive Hardware and Systems (AHS)}}, keywords = {{cache storage, field programmable gate arrays, multiprocessing systems, parallel architectures, reconfigurable architectures, FPGA, dynamic reconfiguration, evolvable cache mapping, many-core architecture, memory-to-cache address mapping function, microarchitectural optimization, multicore architecture, nature-inspired optimization, parallelization degrees, processor, reconfigurable cache mapping, reconfigurable computing, Field programmable gate arrays, Software, Tuning}}, pages = {{1--7}}, title = {{{Microarchitectural optimization by means of reconfigurable and evolvable cache mappings}}}, doi = {{10.1109/AHS.2015.7231178}}, year = {{2015}}, } @article{58013, abstract = {{This study examines whether lexical repetition, syntactic skills, and working memory (WM) affect children’s syntactic-priming behavior, i.e. their tendency to adopt previously encountered syntactic structures. Children with Specific Language Impairment (SLI) and typically developing (TD) children were primed with prenominal (e.g., the yellow cup) or relative clause (RC; e.g., the cup that is yellow) structures with or without lexical overlap and performed additional tests of productive syntactic skills and WM capacity. Results revealed a reliable syntactic-priming effect without lexical boost in both groups: SLI and TD children produced more RCs following RC primes than following prenominal primes. Grammaticality requirements influenced RC productions in that SLI children produced fewer grammatical RCs than TD children. Of the additional measures, WM positively affected how frequently children produced dispreferred RC structures, but productive syntactic skills had no effect. The results support an implicit-learning account of syntactic priming and emphasize the importance of WM in syntactic priming tasks.}}, author = {{Foltz, Anouschka and Thiele, Kristina and Kahsnitz, Dunja and Stenneken, Prisca}}, journal = {{Journal of child language}}, keywords = {{Child, Female, Germany, Humans, Linguistics, Male, Memory, Short-Term, Vocabulary}}, number = {{4}}, pages = {{932–945}}, title = {{{Children’s syntactic-priming magnitude: lexical factors and participant characteristics}}}, doi = {{10.1017/S0305000914000488}}, volume = {{42}}, year = {{2015}}, } @article{4696, author = {{vom Brocke, Jan and Debortoli, Stefan and Reuter, Nadine and Müller, Oliver}}, issn = {{15293181}}, journal = {{Communications of the Association for Information Systems}}, keywords = {{Advanced business analytics, Big Data, Business intelligence, IT business value, In-memory technology, OLAP, OLTP, Realtime analytics, Sentiment analysis}}, pages = {{151----167}}, title = {{{How In-Memory Technology Can Create Business Value: Lessons Learned from Hilti}}}, doi = {{10.17705/1CAIS.03407}}, year = {{2014}}, } @inproceedings{10677, author = {{Ho, Nam and Kaufmann, Paul and Platzner, Marco}}, booktitle = {{2014 {IEEE} Intl. Conf. on Evolvable Systems (ICES)}}, keywords = {{Linux, cache storage, embedded systems, granular computing, multiprocessing systems, reconfigurable architectures, Leon3 SPARe processor, custom logic events, evolvable-self-adaptable processor cache, fine granular profiling, integer unit events, measurement infrastructure, microarchitectural events, multicore embedded system, perf_event standard Linux performance measurement interface, processor properties, run-time reconfigurable memory-to-cache address mapping engine, run-time reconfigurable multicore infrastructure, split-level caching, Field programmable gate arrays, Frequency locked loops, Irrigation, Phasor measurement units, Registers, Weaving}}, pages = {{31--37}}, title = {{{Towards self-adaptive caches: A run-time reconfigurable multi-core infrastructure}}}, doi = {{10.1109/ICES.2014.7008719}}, year = {{2014}}, } @article{11862, abstract = {{In this contribution we extend a previously proposed Bayesian approach for the enhancement of reverberant logarithmic mel power spectral coefficients for robust automatic speech recognition to the additional compensation of background noise. A recently proposed observation model is employed whose time-variant observation error statistics are obtained as a side product of the inference of the a posteriori probability density function of the clean speech feature vectors. Further a reduction of the computational effort and the memory requirements are achieved by using a recursive formulation of the observation model. The performance of the proposed algorithms is first experimentally studied on a connected digits recognition task with artificially created noisy reverberant data. It is shown that the use of the time-variant observation error model leads to a significant error rate reduction at low signal-to-noise ratios compared to a time-invariant model. Further experiments were conducted on a 5000 word task recorded in a reverberant and noisy environment. A significant word error rate reduction was obtained demonstrating the effectiveness of the approach on real-world data.}}, author = {{Leutnant, Volker and Krueger, Alexander and Haeb-Umbach, Reinhold}}, journal = {{IEEE Transactions on Audio, Speech, and Language Processing}}, keywords = {{Bayes methods, compensation, error statistics, reverberation, speech recognition, Bayesian feature enhancement, background noise, clean speech feature vectors, compensation, connected digits recognition task, error statistics, memory requirements, noisy reverberant data, posteriori probability density function, recursive formulation, reverberant logarithmic mel power spectral coefficients, robust automatic speech recognition, signal-to-noise ratios, time-variant observation, word error rate reduction, Robust automatic speech recognition, model-based Bayesian feature enhancement, observation model for reverberant and noisy speech, recursive observation model}}, number = {{8}}, pages = {{1640--1652}}, title = {{{Bayesian Feature Enhancement for Reverberation and Noise Robust Speech Recognition}}}, doi = {{10.1109/TASL.2013.2258013}}, volume = {{21}}, year = {{2013}}, } @article{6082, abstract = {{When two targets are presented in rapid succession, the first target (T1) is usually identified, but the second target (T2) is often missed. A remarkable exception to this 'attentional blink' occurs when T2 immediately follows the first T1, at lag 1. It is then often spared but reported in the wrong order—that is, before T1. These order reversals have led to the hypothesis that 'lag 1 sparing' occurs because the two targets merge into a single episodic representation. Here, we report evidence consistent with an alternative theory: T2 receives more attention than T1, leading to prior entry into working memory. Two experiments showed that the more T2 performance exceeded that for T1, the more order reversals were made. Furthermore, precuing T1 led to a shift in performance benefits from T2 to T1 and to an equivalent reduction in order reversals. We conclude that it is not necessary to assume episodic integration to explain lag 1 sparing or the accompanying order reversals. (PsycINFO Dat}}, author = {{Olivers, Christian N. L. and Hilkenmeier, Frederic and Scharlau, Ingrid}}, issn = {{1943-3921}}, journal = {{Attention, Perception, & Psychophysics}}, keywords = {{attentional blink, order reversals, prior entry, working memory, visual attention, attentional performance, Adolescent, Adult, Attention, Attentional Blink, Color Perception, Cues, Discrimination (Psychology), Female, Humans, Male, Memory, Short-Term, Pattern Recognition, Visual, Psychophysics, Reaction Time, Reversal Learning, Sensory Gating, Serial Learning, Young Adult, Eyeblink Reflex, Stimulus Change, Stimulus Parameters, Visual Attention, Attentional Blink, Short Term Memory}}, number = {{1}}, pages = {{53 -- 67}}, title = {{{Prior entry explains order reversals in the attentional blink.}}}, volume = {{73}}, year = {{2011}}, } @article{6067, abstract = {{Implicit change detection demonstrates how the visual system can benefit from stored information that is not immediately available to conscious awareness. We investigated the role of motor action in this context. In the first two experiments, using a one-shot implicit change detection paradigm, participants responded to unperceived changes either with an action (jabbing the screen at the guessed location of a change) or with words (verbal report), and sat either 60 cm or 300 cm (with a laser pointer) away from the display. Our observers guessed the locations of changes at a reachable distance better with an action than with a verbal judgment. At 300 cm, beyond reach, the motor advantage disappeared. In experiment 3, this advantage was also unavailable when participants sat at a reachable distance but responded with hand-held laser pointers near their bodies. We conclude that a motor system specialized for real-time visually guided behavior has access to additional visual information. }}, author = {{Tseng, Philip and Tuennermann, Jan and Roker-Knight, Nancy and Winter, Dorina and Scharlau, Ingrid and Bridgeman, Bruce}}, issn = {{0301-0066}}, journal = {{Perception}}, keywords = {{implicit change detection, action perception, visual system, perceptual judgment, verbal fluency, Analysis of Variance, Awareness, Female, Humans, Male, Psychomotor Performance, Random Allocation, Reaction Time, Visual Perception, Visual Memory, Visual Stimulation, Implicit Memory, Judgment, Perceptual Discrimination}}, number = {{10}}, pages = {{1311 -- 1321}}, title = {{{Enhancing implicit change detection through action.}}}, volume = {{39}}, year = {{2010}}, } @inproceedings{9570, abstract = {{EN: Although the use of new actuator technologies is quite enthusiastic, the realization of innovative systems based on these principles fails because of doubts in dependability. Until now, new working principles for actuators have not been systematically investigated in the means of dependability. Therefore we developed a proceeding for a dependability-oriented evaluation of technologies. This is shown in the case of shape memory alloy actuators. DE: Die Realisierung von Systemen mittels innovativer Aktortechnologien scheitert oftmals an der Skepsis gegenüber der Verlässlichkeit (Vertrauen in die zuverlässige und sichere Funktionalität der Technologie). Diese liegt darin begründet, dass neue Aktortechnologien bzw. die Integration von innovativen physikalischen Wirkprinzipen innerhalb neuer Aktorkonzepte bisher noch nicht systematisch im Kontext der Verlässlichkeit untersucht werden. Daher haben wir ein Vorgehen zur verlässlichkeitsorientierten Technologiebewertung entwickelt. Neben der detaillierten Darstellung des Vorgehensmodells wird es exemplarisch anhand von Formgedächtnislegierungen zur Entwicklung innovativer Antriebslösungen angewendet.}}, author = {{Müller, Thomas and Schiedeck, Florian and Hemsel, Tobias}}, booktitle = {{2. Tagung des DVM -- Arbeitskreis Zuverlässigkeit mechatronischer und adaptronischer Systeme: Absicherung der Systemzuverlässigkeit, Koblenz}}, keywords = {{EN: Dependability, Reliability, Evaluation of Technology, Actuators, Shape Memory Alloys DE: Verl{\}}, title = {{{Verlässlichkeitorientierte Technologiebewertung innovativer Aktortechnologien am Beispiel von Formgedächtnislegierungen}}}, year = {{2008}}, } @article{6068, abstract = {{Attending to a location shortens the perceptual latency of stimuli appearing at this location (perceptual latency priming). According to attentional explanations, perceptual latency priming relies on the speeded transfer of attended visual information into an internal model. However, doubts about the attentional origin have repeatedly been raised because efforts to minimize response bias have been insufficient in most studies. Five experiments investigated the contribution of a response bias to perceptual latency priming (judgment bias due to the two-alternative forced-choice method and due to the existence of the prime, criterion effects or second-order bias, sensorimotor priming). If any, only small response biases were found. The results thus support the attentional explanation. (PsycINFO Database Record (c) 2016 APA, all rights reserved)}}, author = {{Scharlau, Ingrid}}, issn = {{0340-0727}}, journal = {{Psychological Research}}, keywords = {{response bias, temporal order tasks, attention manipulation, masked primes, perceptual latency priming, Adult, Attention, Discrimination Learning, Female, Humans, Male, Memory, Short-Term, Orientation, Pattern Recognition, Visual, Perceptual Masking, Psychomotor Performance, Psychophysics, Reaction Time, Serial Learning, Attention, Latent Learning, Priming, Response Bias, Visual Perception, Response Latency, Temporal Order (Judgment)}}, number = {{4}}, pages = {{224 -- 236}}, title = {{{Evidence against response bias in temporal order tasks with attention manipulation by masked primes.}}}, volume = {{68}}, year = {{2004}}, } @inproceedings{2418, abstract = {{ This paper presents TKDM, a PC-based high-performance reconfigurable computing environment. The TKDM hardware consists of an FPGA module that uses the DIMM (dual inline memory module) bus for high-bandwidth and low-latency communication with the host CPU. The system's firmware is integrated with the Linux host operating system and offers functions for data communication and FPGA reconfiguration. The intended use of TKDM is that of a dynamically reconfigurable co-processor for data streaming applications. The system's firmware can be customized for specific application domains to facilitate simple and easy-to-use programming interfaces. }}, author = {{Plessl, Christian and Platzner, Marco}}, booktitle = {{Proc. Int. Conf. on Field Programmable Technology (ICFPT)}}, keywords = {{coprocessor, DIMM, memory bus, FPGA, high performance computing}}, pages = {{252--259}}, publisher = {{IEEE Computer Society}}, title = {{{TKDM – A Reconfigurable Co-processor in a PC's Memory Slot}}}, doi = {{10.1109/FPT.2003.1275755}}, year = {{2003}}, }