Personal Poetry and Personal Criticism

Fowler, Alan

doi:10.1093/eic/ix.3.315

Cited by 2 publications

(2 citation statements)

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“…(Increased clock speeds would require a corresponding increase in classical performance.) In unpublished work [50], it has been estimated that a CPU core and FPGA could realistically perform error correction for around 100 physical qubits, which would be 1-2 orders of magnitude faster than a CPU alone; so this is comparable to what we here call a GPU.…”

Section: Cost Of Classical Computationmentioning

confidence: 93%

Applying quantum algorithms to constraint satisfaction problems

Montanaro

Campbell

Khurana

2019

Quantum

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Quantum algorithms can deliver asymptotic speedups over their classical counterparts. However, there are few cases where a substantial quantum speedup has been worked out in detail for reasonably-sized problems, when compared with the best classical algorithms and taking into account realistic hardware parameters and overheads for fault-tolerance.All known examples of such speedups correspond to problems related to simulation of quantum systems and cryptography. Here we apply general-purpose quantum algorithms for solving constraint satisfaction problems to two families of prototypical NP-complete problems: boolean satisfiability and graph colouring. We consider two quantum approaches: Grover's algorithm and a quantum algorithm for accelerating backtracking algorithms. We compare the performance of optimised versions of these algorithms, when applied to random problem instances, against leading classical algorithms. Even when considering only problem instances that can be solved within one day, we find that there are potentially large quantum speedups available. In the most optimistic parameter regime we consider, this could be a factor of over 10 5 relative to a classical desktop computer; in the least optimistic regime, the speedup is reduced to a factor of over 10 3 . However, the number of physical qubits used is extremely large, and improved fault-tolerance methods will likely be needed to make these results practical. In particular, the quantum advantage disappears if one includes the cost of the classical processing power required to perform decoding of the surface code using current techniques. Many quantum algorithms are known, for tasks as diverse as integer factorisation [92] and computing Jones polynomials [4]. Indeed, at the time of writing, the Quantum Algorithm Zoo website [62] cites 392 papers on quantum algorithms. However, there Ashley

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Section: Cost Of Classical Computationmentioning

confidence: 93%

Applying quantum algorithms to constraint satisfaction problems

Montanaro

Campbell

Khurana

2019

Quantum

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“…Fowler (2008) described an experience with an MMPI adaptation on his first visit to China in 1980 at a small psychiatric clinic in Chengdu, Sichuan province. Shortly after he arrived, the only psychologist at the clinic handed him an MMPI profile on one of their patients.…”

Section: International Applications Of the Mmpi And Mmpi‐2mentioning

confidence: 99%

Personality Assessment with the MMPI‐2: Historical Roots, International Adaptations, and Current Challenges

Butcher

Williams

2009

Applied Psych Health & Well

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The Minnesota Multiphasic Personality Inventory‐2 (MMPI‐2) is the most widely used personality test in psychological practice. Although originally developed during the middle of the last century in the United States, its use today extends around the world. The MMPI‐2 is a robust measure given its strong empirical tradition and many innovations. Recent years have seen controversial changes to this standard of psychological assessment. New scales were added in 2003 (i.e. the Restructured Clinical or RC Scales) and the Fake Bad Scale (FBS) was included in the MMPI‐2 in 2007. A new instrument called the MMPI‐2 Restructured Form (MMPI‐2‐RF) was released in 2008 with the RC Scales replacing the well‐validated MMPI‐2 Clinical Scales; 40 per cent of its items eliminated; a shortened FBS included; and most of its 50 scales introduced for the first time. This article traces the history of the evolving MMPI‐2 with special attention to its international applications, and offers a perspective on the radical departure from past MMPI‐2 research represented by the RC Scales, FBS, the MMPI‐2‐RF, and other recent changes to this standard in the field.

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Personal Poetry and Personal Criticism

Cited by 2 publications

References 0 publications

Applying quantum algorithms to constraint satisfaction problems

Applying quantum algorithms to constraint satisfaction problems

Personality Assessment with the MMPI‐2: Historical Roots, International Adaptations, and Current Challenges

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