Evidence map›Paper›PMID 28054642›Full record

ArticleScientific reports2017

An efficient analog Hamming distance comparator realized with a unipolar memristor array: a showcase of physical computing.

Ning Ge, Jung Ho Yoon, Miao Hu, E J Merced-Grafals, Noraica Davila, John Paul Strachan, Zhiyong Li, Helen Holder, Qiangfei Xia, R Stanley Williams and 2 more

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors.

Ning GeHP Labs, HP Inc., Palo Alto, California 94304, USA.
Jung Ho YoonDepartment of Electrical and Computer Engineering, University of Massachusetts, Amherst, MA 01003, USA.
Miao HuHewlett Packard Labs, Palo Alto, California 94304, USA.
E J Merced-GrafalsHewlett Packard Labs, Palo Alto, California 94304, USA.
Noraica DavilaHewlett Packard Labs, Palo Alto, California 94304, USA.
John Paul StrachanHewlett Packard Labs, Palo Alto, California 94304, USA.
Zhiyong LiHewlett Packard Labs, Palo Alto, California 94304, USA.
Helen HolderHP Labs, HP Inc., Palo Alto, California 94304, USA.
Qiangfei XiaDepartment of Electrical and Computer Engineering, University of Massachusetts, Amherst, MA 01003, USA.
R Stanley WilliamsHewlett Packard Labs, Palo Alto, California 94304, USA.
Xing ZhouSchool of Electrical &Electronic Engineering, Nanyang Technological University, Nanyang Avenue, 639798, Singapore.
J Joshua YangDepartment of Electrical and Computer Engineering, University of Massachusetts, Amherst, MA 01003, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We propose and demonstrate a novel physical computing paradigm based on an engineered unipolar memristor that exhibits symmetric SET switching with respect to voltage polarity. A one-dimensional array of these devices was sufficient to demonstrate an efficient Hamming distance comparator for two strings of analog states represented by voltages from the physical world. The comparator first simultaneously applies the two sets of voltages to the array of memristors, each of which is initially in its high resistance state and switches to its low resistance state only if the two voltages applied on that memristor differ by more than the switching threshold. An accurate analog representation of the Hamming distance is then obtained by applying a reading voltage to the memristors and summing all the resultant currents. The comparator with a small footprint can directly process analog signals and store computation results without power, representing a promising application for analog computing based on memristor crossbar arrays.

Identifiers

PMID28054642
PMCPMC5213382

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.