Differential decay rates of CP-even and CP-odd Higgs bosons to top and bottom quarks at NNLO QCD

We consider the decay of a neutral Higgs boson of arbitrary CP nature to a massive quark antiquark pair at next-to-next-to-leading order in perturbative QCD. Our analysis is made at the differential level using the antenna subtraction framework. We apply our general set-up to the decays of a CP-even and CP-odd heavy Higgs boson to a top-quark top-antiquark pair and to the decay of the 125 GeV Higgs boson to a massive bottom-quark bottom-antiquark pair. In the latter case we calculate, in particular, the two-jet, three-jet, and four-jet decay rates and, for two-jet events, the energy distribution of the leading jet.Comment: Latex, 23 pages, a reference adde

A Multi-task Learning Approach for Improving Product Title Compression with User Search Log Data

It is a challenging and practical research problem to obtain effective compression of lengthy product titles for E-commerce. This is particularly important as more and more users browse mobile E-commerce apps and more merchants make the original product titles redundant and lengthy for Search Engine Optimization. Traditional text summarization approaches often require a large amount of preprocessing costs and do not capture the important issue of conversion rate in E-commerce. This paper proposes a novel multi-task learning approach for improving product title compression with user search log data. In particular, a pointer network-based sequence-to-sequence approach is utilized for title compression with an attentive mechanism as an extractive method and an attentive encoder-decoder approach is utilized for generating user search queries. The encoding parameters (i.e., semantic embedding of original titles) are shared among the two tasks and the attention distributions are jointly optimized. An extensive set of experiments with both human annotated data and online deployment demonstrate the advantage of the proposed research for both compression qualities and online business values.Comment: 8 Pages, accepted at AAAI 201

K moduli of log del Pezzo pairs

We establish the full explicit wall-crossing for K-moduli space $\overline{P}^K_c$ of degree $8$ del Pezzo pairs $(X,cC)$ where generically X \cong \bbF_1 and $C \sim -2K_X$. We also show K-moduli spaces $\overline{P}^K_c$ coincide with Hassett-Keel-Looijenga(HKL) models \cF(s) of a $18$-dimensional locally symmetric spaces associated to the lattice $E_8\oplus U^2\oplus E_7\oplus A_1$.Comment: 42 pages, comments welcome

Research on the Outlook and Solutions in the Development of Marathon Series in China

Today, Marathon Series rise gradually and grow fast, and their development brings undeniable influences, even can drive the development of a city in every aspect, playing an incredible catalytic role in the regional development. The author deeply explored the status and laws of the development of Marathon Series in our country through literature material laws, field investigation and expert interview survey and believes: Marathon Series can even stimulate enthusiasm among common people in running a marathon, can enhance communication and connection between cities, can better promote balanced development between each territory and plays a proactive role in the establishment of Marathon brand; for the future development of Marathon Series in our country, we should vigorously implement “Internet plus” strategies adapt to the era, prepare cooperation programs for the race well, make a plan as sufficiently as possible, actively carry out innovation and realize sustainable development, with a view to contributing fresh strength to the profound and long-lasting development of marathon business and even sport industry in our country as well as the Healthy China 2030 initiative

THE INFLUENCE OF PRODUCT PRESENTATION MODE AND ACADEMIC MAJOR ON THE MOTIVATION OF HAPTIC

Purpose of the study: This study was aimed to investigate the effect of product presentation mode and education background of the subject on the willingness of touch, preferences and visual imagery. Methodology: A total of 60 students were recruited to participate. The independent variables included product presentation mode (physical products, backgrounds removed image, scenario photo) and academic major of the subject (design major or management major). Three different kind dependent variables were measured in the study. On physical product condition, one sample was placed in front of subjects at a time. Both backgrounds removed image and scenario photo conditions, the subjects view experimental photos through a 22-inch LCD screen. They watched the sample item for 10 seconds and then were asked to assess the subjective questionnaire. Main Findings: The study results showed that when watching a physical product, the motivation of touch was greatest. The scenario photo generated more positive feelings and resulted in higher preference rating. The willingness of touch, preference and sensory ratings of management major students were higher than design major students. Applications of this study: The findings of this study can serve as a reference for enterprises to properly present products on web pages in order to increase consumers’ motivation to touch and preference. Novelty/Originality of this study: This study reinforces construction of a model of motivation to touch, and find that product presentation mode significant affect motivation to touch, preference and novelty feeling