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Differentiable Causal Computations via Delayed Trace [article]

David Sprunger, Shin-ya Katsumata
2019 arXiv   pre-print
We model these in category theory via a construction taking a Cartesian category C to another category St(C) with a novel trace-like operation called "delayed trace", which misses yanking and dinaturality  ...  We investigate causal computations taking sequences of inputs to sequences of outputs where the nth output depends on the first n inputs only.  ...  We model these in category theory via a construction taking a Cartesian category C to another category St(C) with a novel trace-like operation called "delayed trace", which misses yanking and dinaturality  ... 
arXiv:1903.01093v1 fatcat:si6vhlhhjfbvlff4oq6tj66srq

Interhemispheric transfer of working memories [article]

Scott L Brincat, Jacob A. Donoghue, Meredith K. Mahnke, Simon Kornblith, Mikael Lundqvist, Earl K Miller
2020 biorxiv/medrxiv   pre-print
Transferred traces initially used different neural ensembles from feedforward-induced ones but they converged at the end of the delay.  ...  An instructed saccade during the WM delay shifted the remembered location from one hemifield to the other.  ...  For this analysis only, LFP spectra were computed around the putative trace transfer period (-1 to -0.5 s relative to delay end) via the multitaper method (4 Hz frequency bandwidth, 3 dpss tapers).  ... 
doi:10.1101/2020.08.12.248203 fatcat:z34hfne4ojbzhe3wgl6vydqkbe

Non-linear motor control by local learning in spiking neural networks [article]

Aditya Gilra, Wulfram Gerstner
2017 arXiv   pre-print
We choose a network architecture, termed differential feedforward, that gives the lowest test error from different feedforward and recurrent architectures.  ...  Connection weights are adjusted via a local plasticity rule that involves pre-synaptic firing and post-synaptic feedback of the error in the inferred command.  ...  For different values of differential delay ∆ and causal torque delay ∆u, we learned the inverse model using the differential feedforward network, having 200 neurons in each of the undelayed and delayed  ... 
arXiv:1712.10158v1 fatcat:3xukyjzlanfgxabxj7qym3qvke

A tissue-aware machine learning framework enhances the mechanistic understanding and genetic diagnosis of Mendelian and rare diseases [article]

Eyal Simonovsky, Moran Sharon, Maya Ziv, Omry Mauer, Idan Hekselman, Juman Jubran, Ekaterina Vinogradov, Chanan M. Argov, Omer Basha, Lior Kerber, Yuval Yogev, Ayellet V. Segrè (+5 others)
2021 bioRxiv   pre-print
A webserver supporting gene prioritization is available at https://netbio.bgu.ac.il/trace/.  ...  To mimic the input to TRACE per tissue, pBRIT was applied to the same distinct subsets that were used in TRACE. pBRIT was run via its web interface, by using the data fusion method of 'TFIDF'.  ...  Next, we created another feature per tissue where each gene was assigned with the median ratio computed across samples of that tissue. Differential process activity features.  ... 
doi:10.1101/2021.02.16.430825 fatcat:lllxhii55fdhzemxmyfbyikk6q

E2EProf: Automated End-to-End Performance Management for Enterprise Systems

Sandip Agarwala, Fernando Alegre, Karsten Schwan, Jegannathan Mehalingham
2007 37th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN'07)  
across distributed and heterogeneous computing infrastructures.  ...  Distributed systems are becoming increasingly complex, caused by the prevalent use of web services, multi-tier architectures, and grid computing, where dynamic sets of components interact with each other  ...  Despite inaccurate delay computation, the service paths computed above are still useful in detecting causal dependencies across different components.  ... 
doi:10.1109/dsn.2007.38 dblp:conf/dsn/AgarwalaASM07 fatcat:btgcautobvhtlkulowbkofygp4

Cerebellar Purkinje cells can differentially modulate coherence between sensory and motor cortex depending on region and behavior

Sander Lindeman, Sungho Hong, Lieke Kros, Jorge F. Mejias, Vincenzo Romano, Robert Oostenveld, Mario Negrello, Laurens W. J. Bosman, Chris I. De Zeeuw
2020 Proceedings of the National Academy of Sciences of the United States of America  
Granger causality analyses and computational modeling of the involved networks suggest that Purkinje cells control S1–M1 phase consistency predominantly via ventrolateral thalamus and M1.  ...  These effects are absent when Purkinje cell activation is delayed by 20 ms.  ...  Granger causality analyses and computational modeling of the involved networks suggest that Purkinje cells control S1-M1 phase consistency predominantly via ventrolateral thalamus and M1.  ... 
doi:10.1073/pnas.2015292118 pmid:33443203 fatcat:xc2edml2lvfvzimwtkhvkyzv4q

Cerebellar Purkinje cells can differentially modulate coherence between sensory and motor cortex depending on region and behavior [article]

Sander Lindeman, Lieke Kros, Sungho Hong, Jorge F. Mejias, Vincenzo Romano, Mario Negrello, Laurens W. Bosman, Chris I. De Zeeuw
2020 biorxiv/medrxiv   pre-print
Granger causality analyses and computational modeling of the involved networks suggest that Purkinje cells control S1-M1 coherence most prominently via the ventrolateral thalamus and M1.  ...  This impact only occurred when Purkinje cell stimulation was given simultaneously with sensory stimulation; a 20 ms delay was sufficient to alleviate its impact, suggesting the existence of a fast, cerebellar  ...  Granger causality analyses and computational modeling of the involved networks suggest that Purkinje cells control S1-M1 phase consistency predominantly via ventrolateral thalamus and M1.  ... 
doi:10.1101/2020.03.11.986943 fatcat:6wktmm7xobhaflywi232pthzca

Performance debugging for distributed systems of black boxes

Marcos K. Aguilera, Jeffrey C. Mogul, Janet L. Wiener, Patrick Reynolds, Athicha Muthitacharoen
2003 ACM SIGOPS Operating Systems Review  
One uses timing information from RPC messages to infer inter-call causality; the other uses signal-processing techniques. Our algorithms can ascribe delay to specific nodes on specific causal paths.  ...  We have developed two very different algorithms for inferring the dominant causal paths through a distributed system from these traces.  ...  ACKNOWLEDGEMENTS We wish to thank Steve Langdon for inspiring this research; Hank Jakiela, Whit Turner, and Richard LaPerle for their assistance in trace collection; Emre Kiciman for providing and helping  ... 
doi:10.1145/1165389.945454 fatcat:3olyp542pbgsplpf5xggutloru

Performance debugging for distributed systems of black boxes

Marcos K. Aguilera, Jeffrey C. Mogul, Janet L. Wiener, Patrick Reynolds, Athicha Muthitacharoen
2003 Proceedings of the nineteenth ACM symposium on Operating systems principles - SOSP '03  
One uses timing information from RPC messages to infer inter-call causality; the other uses signal-processing techniques. Our algorithms can ascribe delay to specific nodes on specific causal paths.  ...  We have developed two very different algorithms for inferring the dominant causal paths through a distributed system from these traces.  ...  ACKNOWLEDGEMENTS We wish to thank Steve Langdon for inspiring this research; Hank Jakiela, Whit Turner, and Richard LaPerle for their assistance in trace collection; Emre Kiciman for providing and helping  ... 
doi:10.1145/945453.945454 fatcat:nj3tdphykbdvzhi7jjsal7645i

Performance debugging for distributed systems of black boxes

Marcos K. Aguilera, Jeffrey C. Mogul, Janet L. Wiener, Patrick Reynolds, Athicha Muthitacharoen
2003 Proceedings of the nineteenth ACM symposium on Operating systems principles - SOSP '03  
One uses timing information from RPC messages to infer inter-call causality; the other uses signal-processing techniques. Our algorithms can ascribe delay to specific nodes on specific causal paths.  ...  We have developed two very different algorithms for inferring the dominant causal paths through a distributed system from these traces.  ...  ACKNOWLEDGEMENTS We wish to thank Steve Langdon for inspiring this research; Hank Jakiela, Whit Turner, and Richard LaPerle for their assistance in trace collection; Emre Kiciman for providing and helping  ... 
doi:10.1145/945445.945454 dblp:conf/sosp/AguileraMWRM03 fatcat:bebbtgra6bgj7iamnqysdiawy4

Overview of Signal Integrity and EMC Design Technologies on PCB: Fundamentals and Latest Progress

Tzong-Lin Wu, Frits Buesink, Flavio Canavero
2013 IEEE transactions on electromagnetic compatibility (Print)  
Another interesting research direction is on the design of the differential serpentine delay line, which is a common layout technique to equalize the timing delay among different pairs of differential  ...  Recently, a physics-based via model was proposed with reasonable accuracy and computing efficiency [108] - [112] .  ... 
doi:10.1109/temc.2013.2257796 fatcat:zgv4k5njczes3i5lze7dejus2i

Conditioning, awareness, and the hippocampus

Kevin S. LaBar, John F. Disterhoft
1998 Hippocampus  
It is clear that trace eyeblink conditioning is a hippocampaldependent task, but whether awareness is a necessary component of trace conditioning is not definitively proven.  ...  A recent proposal that the hippocampus mediates awareness during trace conditioning (Clark, Squire, Science 1998;280:77-81) has extended the awareness-conditioning debate to the neuroscience arena.  ...  may interact with differential conditioning, even in a delay paradigm.  ... 
doi:10.1002/(sici)1098-1063(1998)8:6<620::aid-hipo4>3.3.co;2-y pmid:9882019 fatcat:t7vhdyzgj5dp7psyfbgnyyfn34

Conditioning, awareness, and the hippocampus

Kevin S. LaBar, John F. Disterhoft
1998 Hippocampus  
It is clear that trace eyeblink conditioning is a hippocampaldependent task, but whether awareness is a necessary component of trace conditioning is not definitively proven.  ...  A recent proposal that the hippocampus mediates awareness during trace conditioning (Clark, Squire, Science 1998;280:77-81) has extended the awareness-conditioning debate to the neuroscience arena.  ...  may interact with differential conditioning, even in a delay paradigm.  ... 
doi:10.1002/(sici)1098-1063(1998)8:6<620::aid-hipo4>3.0.co;2-6 pmid:9882019 fatcat:toeujqj5gran3fipq3xru7impi

Inferring Excitatory and Inhibitory Connections in Neuronal Networks

Silvia Ghirga, Letizia Chiodo, Riccardo Marrocchio, Javier G. Orlandi, Alessandro Loppini
2021 Entropy  
The method is tested on in silico small neuronal networks, built to simulate the calcium activity as measured via calcium imaging in two-dimensional neuronal cultures.  ...  To efficiently disentangle the excitatory and inhibitory neural activities, in the article we present a revised version of TE, split in two contributions and characterized by a suited delay time.  ...  Calcium traces are computed by a convolution of the computed spike train with a calcium response kernel. (C) Calcium traces (black and gray) after down-sampling at 10 ms bin size and noise addition.  ... 
doi:10.3390/e23091185 pmid:34573810 fatcat:nimnhdkzmjcjfasagi65sviyjm

LEADSTO: A Language and Environment for Analysis of Dynamics by SimulaTiOn [chapter]

Tibor Bosse, Catholijn M. Jonker, Lourens van der Meij, Jan Treur
2005 Lecture Notes in Computer Science  
of traces.  ...  Based on the LEADSTO language, a software environment was developed that performs simulations of LEADSTO specifications, generates simulation traces for further analysis, and constructs visual representations  ...  Restrictions on delays The parameters g and h are time intervals, they must be >= 0. The algorithm allows only causal rules, e,f >= 0.  ... 
doi:10.1007/11504894_51 fatcat:p2ukmfox6nbwjia3t2otgs3fou
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