scholarly journals Leveraging cache coherence in active memory systems

2002 ◽  
Author(s):  
Daehyun Kim ◽  
Mainak Chaudhuri ◽  
Mark Heinrich
Keyword(s):  
Cache Coherence ◽  
Memory Systems ◽  
Active Memory

scholarly journals MESI Cache Coherence Simulator for Teaching Purposes

2009 ◽  
Vol 12 (1) ◽  
Author(s):  
Juan Gómez-Luna ◽  
Ezequiel Herruzo ◽  
José Ignacio Benavides
Keyword(s):  
Cache Coherence ◽  
Computer Systems ◽  
Memory Systems ◽  
Memory System ◽  
Experimental Results ◽  
Cache Memory ◽  
Memory Location ◽  
Memory Coherence ◽  
Computational Systems ◽  
Short Explanation

Nowadays, the computational systems (multi and uniprocessors) need to avoid the cachecoherence problem. There are some techniques to solve this problem. The MESI cachecoherence protocol is one of them. This paper presents a simulator of the MESI protocolwhich is used for teaching the cache memory coherence on the computer systems withhierarchical memory system and for explaining the process of the cache memory location inmultilevel cache memory systems. The paper shows a description of the course in which thesimulator is used, a short explanation about the MESI protocol and how the simulatorworks. Then, some experimental results in a real teaching environment are described.

scholarly journals Mismatch responses mediated by adaptation and deviance detection have complementary functional profiles that point to different auditory short-term memory systems

2019 ◽  
Author(s):  
Tobias Teichert ◽  
Hank Jedema ◽  
Zhijun Shen ◽  
Kate Gurnsey
Keyword(s):  
Mismatch Negativity ◽  
Short Term Memory ◽  
Frequency Tuning ◽  
Memory Systems ◽  
New Paradigm ◽  
Short Term ◽  
Term Memory ◽  
Active Memory ◽  
Deviance Detection ◽  
Functional Profiles

AbstractMismatch negativity (MMN) is a macroscopic EEG deflection in response to rare or unexpected sounds. It has provided important insights into auditory short-term memory, pre-attentive guidance of attention, and their alteration in conditions such as schizophrenia. It remains unclear if MMN is caused by passive adaptation, active memory-comparison processes (deviance detection; DD), or a mix of both. To answer this question, macaque monkeys listened to a new paradigm that quantified both components of MMN. Micro- and macroscopic mismatch responses in the rhesus were dominated by adaptation at short latencies but included a smaller contribution of deviance detection at longer latencies. Most importantly, we show that mismatch responses mediated by adaptation have a short temporal scope and narrow frequency tuning while mismatch responses mediated by deviance detection have a longer temporal scope but broader frequency tuning. The different functional profiles point to the involvement of two distinct auditory short-term memory systems and complementary roles in the pre-attentive guidance of attention.

Cache coherence in intelligent memory systems

2003 ◽  
Vol 52 (7) ◽  
pp. 960-966 ◽  
Author(s):  
D. Keen ◽  
M. Oskin ◽  
J. Hensley ◽  
F.T. Chong
Keyword(s):  
Cache Coherence ◽  
Memory Systems ◽  
Intelligent Memory

scholarly journals Architectural support for uniprocessor and multiprocessor active memory systems

2004 ◽  
Vol 53 (3) ◽  
pp. 288-307 ◽  
Author(s):  
Daehyun Kim ◽  
M. Chaudhuri ◽  
M. Heinrich ◽  
E. Speight
Keyword(s):  
Memory Systems ◽  
Architectural Support ◽  
Active Memory

Language processing is not a race against time

2016 ◽  
Vol 39 ◽  
Author(s):  
Giosuè Baggio ◽  
Carmelo M. Vicario
Keyword(s):  
Information Processing ◽  
Human Brain ◽  
Language Processing ◽  
Cognitive Functions ◽  
Memory Systems ◽  
Language System ◽  
Moderating Factors

AbstractWe agree with Christiansen & Chater (C&C) that language processing and acquisition are tightly constrained by the limits of sensory and memory systems. However, the human brain supports a range of cognitive functions that mitigate the effects of information processing bottlenecks. The language system is partly organised around these moderating factors, not just around restrictions on storage and computation.

Working, Declarative, and Procedural Memory in Children With Developmental Language Disorder

2020 ◽  
Vol 63 (12) ◽  
pp. 4162-4178
Author(s):  
Emily Jackson ◽  
Suze Leitão ◽  
Mary Claessen ◽  
Mark Boyes
Keyword(s):  
Working Memory ◽  
Short Term Memory ◽  
Language Disorder ◽  
Declarative Memory ◽  
Memory Systems ◽  
Procedural Memory ◽  
Typically Developing ◽  
Short Term ◽  
Term Memory ◽  
Visual Spatial

Purpose Previous research into the working, declarative, and procedural memory systems in children with developmental language disorder (DLD) has yielded inconsistent results. The purpose of this research was to profile these memory systems in children with DLD and their typically developing peers. Method One hundred four 5- to 8-year-old children participated in the study. Fifty had DLD, and 54 were typically developing. Aspects of the working memory system (verbal short-term memory, verbal working memory, and visual–spatial short-term memory) were assessed using a nonword repetition test and subtests from the Working Memory Test Battery for Children. Verbal and visual–spatial declarative memory were measured using the Children's Memory Scale, and an audiovisual serial reaction time task was used to evaluate procedural memory. Results The children with DLD demonstrated significant impairments in verbal short-term and working memory, visual–spatial short-term memory, verbal declarative memory, and procedural memory. However, verbal declarative memory and procedural memory were no longer impaired after controlling for working memory and nonverbal IQ. Declarative memory for visual–spatial information was unimpaired. Conclusions These findings indicate that children with DLD have deficits in the working memory system. While verbal declarative memory and procedural memory also appear to be impaired, these deficits could largely be accounted for by working memory skills. The results have implications for our understanding of the cognitive processes underlying language impairment in the DLD population; however, further investigation of the relationships between the memory systems is required using tasks that measure learning over long-term intervals. Supplemental Material https://doi.org/10.23641/asha.13250180

Human Memory Systems: A Framework for Understanding Dementia

ASHA Leader ◽  
2007 ◽  
Vol 12 (16) ◽  
pp. 8-11 ◽  
Author(s):  
Nidhi Mahendra ◽  
Allegra Apple
Keyword(s):  
Human Memory ◽  
Memory Systems

Perceptual Effects and Recollective Experience in Face Recognition

2005 ◽  
Vol 52 (3) ◽  
pp. 224-231 ◽  
Author(s):  
Chrisanthi Nega
Keyword(s):  
Face Recognition ◽  
Recognition Memory ◽  
Congruency Effect ◽  
Facial Recognition ◽  
Memory Systems ◽  
Study Time ◽  
Perceptual Fluency ◽  
Recollective Experience ◽  
Trace Strength ◽  
Size Congruency

Abstract. Four experiments were conducted investigating the effect of size congruency on facial recognition memory, measured by remember, know and guess responses. Different study times were employed, that is extremely short (300 and 700 ms), short (1,000 ms), and long times (5,000 ms). With the short study time (1,000 ms) size congruency occurred in knowing. With the long study time the effect of size congruency occurred in remembering. These results support the distinctiveness/fluency account of remembering and knowing as well as the memory systems account, since the size congruency effect that occurred in knowing under conditions that facilitated perceptual fluency also occurred independently in remembering under conditions that facilitated elaborative encoding. They do not support the idea that remember and know responses reflect differences in trace strength.

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