Modeling Across-Context Attention For Long-Tail Query Classification in E-commerce

2021 ◽  
Author(s):  
Junhao Zhang ◽  
Weidi Xu ◽  
Jianhui Ji ◽  
Xi Chen ◽  
Hongbo Deng ◽  
...  
Keyword(s):  
Long Tail ◽  
Query Classification

Voids in Quenched Nickel

1968 ◽  
Vol 26 ◽  
pp. 266-267
Author(s):  
J. J. Laidler
Keyword(s):  
Electron Beam ◽  
Ambient Temperature ◽  
Cooling Rate ◽  
Three Dimensional ◽  
Cooling Curve ◽  
Polycrystalline Nickel ◽  
Quenching Temperature ◽  
Long Tail ◽  
Diffusion Pump

The presence of three-dimensional voids in quenched metals has long been suspected, and voids have indeed been observed directly in a number of metals. These include aluminum, platinum, and copper, silver and gold. Attempts at the production of observable quenched-in defects in nickel have been generally unsuccessful, so the present work was initiated in order to establish the conditions under which such defects may be formed.Electron beam zone-melted polycrystalline nickel foils, 99.997% pure, were quenched from 1420°C in an evacuated chamber into a bath containing a silicone diffusion pump fluid . The pressure in the chamber at the quenching temperature was less than 10-5 Torr . With an oil quench such as this, the cooling rate is approximately 5,000°C/second above 400°C; below 400°C, the cooling curve has a long tail. Therefore, the quenched specimens are aged in place for several seconds at a temperature which continuously approaches the ambient temperature of the system.

„Long-Tail-Ballon“-FETO Studie zur Behandlung der schweren kongenitalen Zwerchfellhernie (ClinicalTrials.gov: NCT 03431792)

2018 ◽  
Author(s):  
L van Uden ◽  
G Seliger ◽  
M Bergner ◽  
M Entezami ◽  
M Tchirikov
Keyword(s):  
Long Tail

Towards Small-Sized Long Tail Business with the Dual-Directed Recommendation System

2010 ◽  
Vol 130 (2) ◽  
pp. 317-323
Author(s):  
Masakazu Takahashi ◽  
Takashi Yamada ◽  
Kazuhiko Tsuda ◽  
Takao Terano
Keyword(s):  
Recommendation System ◽  
Long Tail

Marketing in the Era of Long-Tail Media

2008 ◽  
Vol 48 (3) ◽  
pp. 301-302 ◽  
Author(s):  
Joel Rubinson
Keyword(s):  
Long Tail

Long Tail Query Recommendation Based on Query Intent

2014 ◽  
Vol 36 (3) ◽  
pp. 636-642 ◽  
Author(s):  
Lu BAI ◽  
Jia-Feng GUO ◽  
Lei CAO ◽  
Xue-Qi CHENG
Keyword(s):  
Long Tail ◽  
Query Recommendation ◽  
Query Intent

Growth, Popularity, and the Long Tail: Evidence from Digital Markets

2019 ◽  
Author(s):  
Gil Appel ◽  
Barak Libai ◽  
Eitan Muller
Keyword(s):  
Long Tail

scholarly journals Cascading Crises: Society in the Age of COVID-19

2021 ◽  
pp. 000276422110031
Author(s):  
Laura Robinson ◽  
Jeremy Schulz ◽  
Christopher Ball ◽  
Cara Chiaraluce ◽  
Matías Dodel ◽  
...  
Keyword(s):  
Labor Market ◽  
Organizational Response ◽  
Economic Opportunity ◽  
Adaptive Potential ◽  
Third Order ◽  
Long Tail ◽  
Death Risk ◽  
Life And Death ◽  
Communication Practices ◽  
Fear And Anxiety

The tsunami of change triggered by the COVID-19 pandemic has transformed society in a series of cascading crises. Unlike disasters that are more temporarily and spatially bounded, the pandemic has continued to expand across time and space for over a year, leaving an unusually broad range of second-order and third-order harms in its wake. Globally, the unusual conditions of the pandemic—unlike other crises—have impacted almost every facet of our lives. The pandemic has deepened existing inequalities and created new vulnerabilities related to social isolation, incarceration, involuntary exclusion from the labor market, diminished economic opportunity, life-and-death risk in the workplace, and a host of emergent digital, emotional, and economic divides. In tandem, many less advantaged individuals and groups have suffered disproportionate hardship related to the pandemic in the form of fear and anxiety, exposure to misinformation, and the effects of the politicization of the crisis. Many of these phenomena will have a long tail that we are only beginning to understand. Nonetheless, the research also offers evidence of resilience on several fronts including nimble organizational response, emergent communication practices, spontaneous solidarity, and the power of hope. While we do not know what the post COVID-19 world will look like, the scholarship here tells us that the virus has not exhausted society’s adaptive potential.

scholarly journals T4-like Bacteriophages Isolated from Pig Stools Infect Yersinia pseudotuberculosis and Yersinia pestis Using LPS and OmpF as Receptors

Viruses ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 296
Author(s):  
Mabruka Salem ◽  
Maria I. Pajunen ◽  
Jin Woo Jun ◽  
Mikael Skurnik
Keyword(s):  
Yersinia Pseudotuberculosis ◽  
Host Recognition ◽  
Tail Fiber ◽  
Long Tail ◽  
Phage T4 ◽  
One Step ◽  
In Trans ◽  
Step Growth ◽  
Resistant Strains ◽  
Salmonella Phage

The Yersinia bacteriophages fPS-2, fPS-65, and fPS-90, isolated from pig stools, have long contractile tails and elongated heads, and they belong to genus Tequatroviruses in the order Caudovirales. The phages exhibited relatively wide host ranges among Yersinia pseudotuberculosis and related species. One-step growth curve experiments revealed that the phages have latent periods of 50–80 min with burst sizes of 44–65 virions per infected cell. The phage genomes consist of circularly permuted dsDNA of 169,060, 167,058, and 167,132 bp in size, respectively, with a G + C content 35.3%. The number of predicted genes range from 267 to 271. The phage genomes are 84–92% identical to each other and ca 85% identical to phage T4. The phage receptors were identified by whole genome sequencing of spontaneous phage-resistant mutants. The phage-resistant strains had mutations in the ompF, galU, hldD, or hldE genes. OmpF is a porin, and the other genes encode lipopolysaccharide (LPS) biosynthetic enzymes. The ompF, galU, and hldE mutants were successfully complemented in trans with respective wild-type genes. The host recognition was assigned to long tail fiber tip protein Gp38, analogous to that of T-even phages such as Salmonella phage S16, specifically to the distal β-helices connecting loops.

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