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Finding errors in .net with feedback-directed random testing
2008
Proceedings of the 2008 international symposium on Software testing and analysis - ISSTA '08
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We present a case study in which a team of test engineers at Microsoft applied a feedback-directed random testing tool to a critical component of the .NET architecture. ...
Finally, we identify challenges that random testing faces for continued effectiveness, including an observed decrease in the technique's error detection rate over time. • Feedback-directed random test ...
For example, in previous work we described an experiment in which feedback-directed random testing [PLEB07] , a variant of random testing, finds errors in many software libraries while model checking ...
doi:10.1145/1390630.1390643
dblp:conf/issta/PachecoLB08
fatcat:pazuqbxwwfbqlbu4gpzu7ljx2q
Feedback-Directed Random Test Generation
2007
Proceedings / International Conference of Software Engineering
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Our experimental results indicate that feedback-directed random test generation can outperform systematic and undirected random test generation, in terms of coverage and error detection. ...
On 14 large, widely-used libraries (comprising 780KLOC), feedback-directed random test generation finds many previously-unknown errors, not found by either model checking or undirected random generation ...
In terms of error detection, feedback-directed random testing revealed many errors across 14 widely-deployed, well-tested Java and .NET libraries totaling 780KLOC. ...
doi:10.1109/icse.2007.37
dblp:conf/icse/PachecoLEB07
fatcat:lsb6bq2xabe63kias75sdbaaku
Randoop
2007
Companion to the 22nd ACM SIGPLAN conference on Object oriented programming systems and applications companion - OOPSLA '07
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RANDOOP FOR JAVA generates unit tests for Java code using feedback-directed random test generation. Below we describe RANDOOP's input, output, and test generation algorithm. ...
In [5] we showed that feedback-directed random test generation can outperform both systematic and undirected random test generation, in terms of coverage and error detection. ...
How it works Randoop generates unit tests using feedback-directed random testing, a technique inspired by random testing that uses execution feedback gathered from executing test inputs as they are created ...
doi:10.1145/1297846.1297902
dblp:conf/oopsla/PachecoE07
fatcat:tnhgkay7tzbsxiaii4bknb57hq
Proximity Based Stress Testing and Scenario Construction
2015
Social Science Research Network
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In this a paper a non-linear macro-stress testing methodology with focus on early warning is developed. The methodology builds on a variant of Random Forests and its proximity measures. ...
It develops a framework in which naturally defined contagion and feedback effects transfer the impact of stressing a relatively small part of the observations on the whole dataset and thus allow to estimate ...
similar: the average of the average-errors of the estimated dataset is in both cases roughly 30% (31% without feedback, 30% with feedback). ...
doi:10.2139/ssrn.2660498
fatcat:5cxgz3iakbgkbjg464tzdwvoci
Investigating Scopesthesia: Attentional Transitions, Controls and Error Rates in Repeated Tests
2010
Journal of Scientific Exploration
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bias—error rates—feedback ...
There were only 3 recording errors in 2,800 trials (0.1%), and two of these cancelled out, leaving a net error rate of 0.04% Keywords: scopesthesia—sense of being stared at—attentional transitions— response ...
A second surprise was that the number of errors in recording the data was so low. The net error rate of 0.04% was negligible. ...
doaj:6fb21850919c4af991ed085442cbd7ee
fatcat:5r3hg6wsuzc67l3lcrahdbhqny
Techniques for the study of group structure and behavior: II. Empirical studies of the effects of structure in small groups
1961
Psychological bulletin
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structure, with subjects trained in one network and tested in another. ...
In general, he finds that more stable response patterns develop as the amount of information concerning the direction of errors increases. ...
doi:10.1037/h0041302
fatcat:za2wmqoegra3rijwzgf6n3knsy
From robotic toil to symbolic theft: Grounding transfer from entry-level to higher-level categories1
2000
Connection science
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'symmetric' versus 'asymmetric') can be learned in two very different ways: either (1) directly from the input, just as with the entry-level categories (i.e. by toil); or (2) indirectly, from Boolean combinations ...
Our nets are trained to categorize and name 50 X 50 pixel images (e.g. circles, ellipses, squares and rectangles) projected on to the receptive field of a 7 X 7 retina. ...
without having to do any trial and error training with instances and feedback in order to get it; see Cangelosi and Harnad in press.) ...
doi:10.1080/09540090050129763
fatcat:5inzbeasgngjjkgvctnpak22fu
Biologically-plausible learning algorithms can scale to large datasets
[article]
2018
arXiv
pre-print
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One of the main reasons is that BP requires symmetric weight matrices in the feedforward and feedback pathways. ...
However, a recent study by Bartunov et al. (2018) evaluate variants of target-propagation (TP) and feedback alignment (FA) on MINIST, CIFAR, and ImageNet datasets, and find that although many of the proposed ...
In feedback alignment, the authors propose that the feedforward weights learn to align with the random feedback weights, thereby allowing feedback to provide approximate yet useful learning signals (Lillicrap ...
arXiv:1811.03567v3
fatcat:ipxl7q7etbc4npcvggnsab7rzu
Motor Learning Enhances Use-Dependent Plasticity
2017
Journal of Neuroscience
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We found that providing subjects with a binary reward without visual feedback of the cursor led to increased UDP effects. ...
Subjects in the group that received comparable reward not associated with their actions maintained the previously induced UDP. ...
Note that subjects in the Skill group were significantly more accurate during the training (i.e., low error rate) compared with the Random group. b, Mean movement time for the different groups. ...
doi:10.1523/jneurosci.3303-16.2017
pmid:28143961
pmcid:PMC5354321
fatcat:rmi6nxlltbdv3p2essh3x4bede
Dynamic Dominance Persists During Unsupported Reaching
2012
Journal of Motor Behavior
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The nondominant arm showed increased initial direction errors, and path curvature associated with a timing deficit between elbow and shoulder peak torques. ...
error-correction mechanisms. ...
In keeping with these findings, the present results in the dominant limb show strong suppression of curvature and direction errors in all movement directions. ...
doi:10.1080/00222895.2011.636398
pmid:22188333
pmcid:PMC3710691
fatcat:i2fsv76csjfdbf3ipfxvrtfeym
Did the Asian Financial Crisis Scare Foreign Investors Out of Japan?
1999
Social Science Research Network
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Foreigners became net sellers of Japanese equities during the Asian financial crisis in 1997. ...
In this study, I examine whether this shift in aggregate foreign portfolio investment activity in Japan exacerbated the effect of the crisis on markets, or whether it simply reflected positive feedback ...
Complex cross-equation feedback makes direct inferences from coefficient estimates in (1) difficult. ...
doi:10.2139/ssrn.168190
fatcat:fcz3wgiqqfblpeoapbrba7jz3i
Did the Asian financial crisis scare foreign investors out of Japan?
2002
Pacific-Basin Finance Journal
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Foreigners became net sellers of Japanese equities during the Asian financial crisis in 1997. ...
In this study, I examine whether this shift in aggregate foreign portfolio investment activity in Japan exacerbated the effect of the crisis on markets, or whether it simply reflected positive feedback ...
Complex cross-equation feedback makes direct inferences from coefficient estimates in (1) difficult. ...
doi:10.1016/s0927-538x(02)00067-7
fatcat:ypsc7yzbprh6hm7vpeom2wcjou
Neurocognitive enhancement therapy with work therapy: Productivity outcomes at 6- and 12-month follow-ups
2005
Journal of rehabilitation research and development
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center were randomized to 6 months of paid work therapy (WT) or to NET+WT. ...
Mixed random effects analyses revealed significant increase in hours worked and money earned over time for both conditions (p < 0.0001). ...
In an ongoing study based at a community mental health center, we are testing whether NET+SE enhances work outcomes when compared with SE alone. ...
doi:10.1682/jrrd.2005.03.0061
fatcat:a5ed25h7endfnm6sls2cheedfq
ImWalkMF: Joint matrix factorization and implicit walk integrative learning for recommendation
2017
2017 IEEE International Conference on Big Data (Big Data)
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rating feedbacks and multiple direct/indirect implicit correlations among users and items from a random walk perspective. ...
Data sparsity and cold-start problems are prevalent in recommender systems. ...
The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the official policies, either expressed or implied, of the Army Research Laboratory ...
doi:10.1109/bigdata.2017.8258001
dblp:conf/bigdataconf/ZhangYZC17
fatcat:cb72k5dybzclpkzk4r3t7pijty
Task Errors Do Not Induce Implicit Sensorimotor Learning
[article]
2020
bioRxiv
pre-print
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greater net learning. ...
Humans implicitly adjust their movements when challenged with perturbations that induce sensory prediction errors. ...
For instance, cursor feedback could be veridical with the hand, "clamped" in 179 certain directions independent of hand movement direction, or eliminated altogether. ...
doi:10.1101/2020.11.13.381285
fatcat:owzwbeockjg73hp6ox6vhoarp4
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