scholarly journals Varianish: Jamming with Pattern Repetition

2014 ◽  
Vol 1 (1) ◽  
pp. e3
Author(s):  
Jort Band ◽  
Mathias Funk ◽  
Peter Peters ◽  
Bart Hengeveld
Keyword(s):  
Pattern Repetition

Review of Kernelization

2021 ◽  
Vol 51 (4) ◽  
pp. 11-14
Author(s):  
Tim Jackman ◽  
Steve Homer
Keyword(s):  
Computer Science ◽  
Computational Effort ◽  
Simple Idea ◽  
Pattern Repetition

On the surface, the concept of preprocessing may not seem particularly novel nor insightful. Indeed, the simple idea that putting in computational effort upfront may pay off in dividends of time saved later is not only advice that we have received countless times but it is also advice that we ourselves have given to countless others. It may well seem a clich´e, but it turns out to be more powerful than it first appears to be, and in fact plays a rich role in numerous areas of algorithmic research and is a powerful tool for myriad applications. This turns out to be particularly true in Computer Science where pattern repetition within and between algorithms is ubiquitous. The idea of storing results once to avoid repeating them innumerable times can pay huge dividends in computational problems of many kinds. So, while possibly overdone, the advice is still sound and often revelatory.

The Intersection of Two Unlikely Worlds: Ratios and Drums

2001 ◽  
Vol 7 (6) ◽  
pp. 376-383
Author(s):  
Anthony C. Stevens ◽  
Janet M. Sharp ◽  
Becky Nelson
Keyword(s):  
African American ◽  
The Other ◽  
Fifth Grade ◽  
Personal Experiences ◽  
Pattern Repetition ◽  
Grade Classroom

When mathematics lessons are linked with personal experiences, typically, the result is that the student gains a stronger understanding of the content than if the lessons are isolated and unconnected. This premise was recently supported in a local fifth-grade classroom. The students learned to play three mathematically disparate rhythms on conga drums as an introduction to an exploration of ratio. Ratios connect naturally with African and Afro-Cuban drumming because the drummer's combination of many rhythms, each with a pattern repetition of different length results in a polyrhythmic song. The pattern repetitions are comprised of a given quantity of one type of beat mixed with a specified quantity of another type of beat, or a ratio of one beat to the other one. Although we completed this lesson with a group of children of whom half were African American, we believe this lesson can be powerful and meaningful for children of all ethnic backgrounds.

Dithering method for reproducing smoothly changing tones and fine details of natural images on woven fabric

2017 ◽  
Vol 88 (24) ◽  
pp. 2782-2799 ◽  
Author(s):  
Tetsuya Igarashi ◽  
Masahiro Toyoura ◽  
Xiaoyang Mao
Keyword(s):  
High Frequency ◽  
Digital Images ◽  
Low Frequency ◽  
Natural Images ◽  
Woven Fabric ◽  
New Methods ◽  
Aesthetic Appearance ◽  
Mask Size ◽  
The Aesthetic ◽  
Pattern Repetition

This paper introduces novel methods to improve the aesthetic appearance of rendered grayscale digital images on woven fabric by smoothly changing tones and improving the reproducibility of fine details. The methods are based on stepping dithering, a recently developed dithering method for automatically generating jacquard weave patterns for arbitrary given images. The existing stepping dithering method suffers from two problems. The first problem is the visually unappealing repetition of patterns for input images containing low frequency, smooth gradation regions. The second problem is the low reproducibility of small structures with high frequency relative to mask size. This paper proposes new methods for faithfully rendering arbitrary natural images on jacquard fabric by solving the pattern repetition and low reproducibility problems. The new methods combine two approaches. The first problem is addressed by optimizing the distribution of thresholds in dither masks, while the second problem is addressed by adopting a dynamic binarizing process for an appropriate area of the stepping dither mask. The experiments described herein show that the proposed method successfully improves the appearance of the resulting woven fabric.

scholarly journals Meter without rhythmic pattern repetitions increases pre-attentive processing

2021 ◽  
Author(s):  
Rui Pedro de Sousa Gomes
Keyword(s):  
Cognitive Load ◽  
Dual Task ◽  
Temporal Structure ◽  
Temporal Orientation ◽  
Behavioral Performance ◽  
Rhythmic Pattern ◽  
Task Context ◽  
Temporal Expectation ◽  
Per Se ◽  
Pattern Repetition

Processing musical meter – the organization of time into regular cycles of strong and weak beats – requires abstraction from the varying rhythmic surface. Several studies investigated whether meter processing requires attention, or if it can be both pre-attentive and attentive. While findings on temporal expectation (processing meter per se) indicated benefits of attention, studies on meter processing in a more complex, dual-task context (meter used for temporal orientation) consistently reported pre-attentive processing. Also, while surface-based approaches to meter (meter aided by pattern repetition) showed some benefits of attention, structural approaches (meter not aided by pattern repetition, increased complexity) found pre-attentive-only processing. Therefore, in the present study we hypothesized that pre-attentive processing increases with cognitive load, and we compared surface with structural meter processing. Supporting our hypothesis, we saw improved behavioral performance for surface meter, as well as EEG evidence that structural meter elicits pre-attentive processing (pre-attentive P1) while surface meter does not (attentive-only P1). Our findings highlight the need for increased awareness in approaches to meter processing and support the idea that increased cognitive demand may recruit pre-attentive processing of temporal structure.

scholarly journals VxG Pattern-Based Analysis and Battery Deterioration Diagnosis

Energies ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5422
Author(s):  
Jungho Lim ◽  
Sung-Eun Lee ◽  
Kwang-Yong Park ◽  
Hee-Soo Kim ◽  
Jin-Hyeok Choi
Keyword(s):  
Ac Impedance ◽  
Internal Resistance ◽  
Analysis Method ◽  
Stabilization Time ◽  
Accelerated Degradation ◽  
Nickel Cobalt ◽  
Smart Charging ◽  
Charging Control ◽  
Nominal Capacity ◽  
Pattern Repetition

This paper presents the results of an analysis using the direct current internal resistance (DCIR) method on a nickel-cobalt-manganese oxide (NCM)-based battery with a nominal capacity of 55.6 Ah. The accelerated degradation test was performed on V0G, V1G, and V2G patterns, representing existing simple power supply, smart charging control, and bi-directional charge/discharge control, respectively. We assumed V0G, V1G, and V2G patterns and conducted charging and discharging experiments according to the set conditions. According to the pattern repetition, changes in the internal resistance of DCIR and AC-impedance were analyzed and battery deterioration was diagnosed. By comparing DCIR and AC-impedance, we confirmed that the changes in internal resistance has a similar trend. In particular, we propose a new DCIR analysis method in the “stop-operation” part rather than the traditional DCIR method. In the case of traditional DCIR method, time is required for the battery to stabilize. However, the newly proposed DCIR analysis method has the advantage of diagnosing the deterioration of the battery during system operation by analyzing the internal resistance without the stabilization time of the battery.

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