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2017年7月26日，地球观测组织（Group on Earth Observations,以下简称GEO）中国秘书处在北京组织召开了中国参与GEO 2017-2019年工作计划的项目研讨会。国家遥感中心王琦安主任和张松梅总工程师、中国参与GEO部际协调小组副组长单位相关同志，以及近20个项目的负责人或代表参加会议。
For high dimensional supervised learning problems, often using problem specific assumptions can lead to greater accuracy. For problems with grouped covariates, which are believed to have sparse effect...
Learning interactions via hierarchical group-lasso regularization
hierarchical interaction computer intensive regression logistic
2015/8/21
We introduce a method for learning pairwise interactions in a linear regression or logistic regression model in a manner that satisfies strong hierarchy: whenever an interaction is estimated to be non...
A Blockwise Descent Algorithm for Group-penalized Multiresponse and Multinomial Regression
Blockwise Descent Algorithm Group-penalized Multiresponse Multinomial Regression
2015/8/21
In this paper we purpose a blockwise descent algorithm for grouppenalized multiresponse regression. Using a quasi-newton framework we extend this to group-penalized multinomial regression. We give a p...
Prominent Job Advertisements,Group Learning and Wage Dispersion
Wages Job Offer Job Search Advertising
2015/4/27
A model is presented in which people base their labor search strategy on the average wage and the average unemployment duration of people who belong to their peer group. It is shown that, if the distr...
On the Galois Group of generalized Laguerre polynomials
Newton polygon Galois group of big generalized laguerre polynomials
2014/12/25
Using the theory of Newton Polygons, we formulate a simple criterion for the Galois group of a polynomial to be “large.” For a fixed α∈ℚ-ℤ <0 , Filaseta and Lam have shown that the nth deg...
Modules over the small quantum group and semi-infinite flag manifold
Abnormal manifold bundle of semi-infinite flag subclass sheaf quantum
2014/12/25
We develop a theory of perverse sheaves on the semi-infinite flag manifold G((t))/N((t)) · T[[t]], and show that the subcategory of Iwahori-monodromy perverse sheaves is equivalent to the regular bloc...
WEYL GROUP MULTIPLE DIRICHLET SERIES OF TYPE A2
Dirichlet series rational function gaussian type
2014/12/25
A Weyl group multiple Dirichlet series is a Dirichlet series in several complex variables attached to a root system . The number of variables equals the rank r of the root system, and the series sati...
Weyl group multiple Dirichlet series constructed from quadratic characters
Dirichlet coefficient function equation of variable properties
2014/12/25
We construct multiple Dirichlet series in several complex variables whose coefficients involve quadratic residue symbols. The series are shown to have an analytic continuation and satisfy a certain gr...
On the p-parts of quadratic Weyl group multiple Dirichlet series
Reduce the root dirichlet level dirichlet series
2014/12/24
Let Φ be a reduced root system of rank r. A Weyl group multiple Dirichlet series for Φ is a Dirichlet series in r complex variables s1,…, sr , initially converging for (si) sufficiently large, which h...
LITTELMANN PATTERNS AND WEYL GROUP MULTIPLE DIRICHLET SERIES OF TYPE D
Vail group the root type pattern
2014/12/24
We formulate a conjecture for the local parts of Weyl group multiple Dirichlet series attached to root systems of type D. Our conjecture is analogous to the description of the local parts of type A se...
Group actions on 4-manifolds: some recent results and open questions
Dynamic 4 - manifolds smooth symplectic classification group action
2014/12/24
A survey of finite group actions on symplectic 4-manifolds is given with a special emphasis on results and questions concerning smooth or symplectic classification of group actions, group actions and ...
CONSTRUCTING WEYL GROUP MULTIPLE DIRICHLET SERIES
Lower level dirichlet series gathered themselves together transformation
2014/12/24
Let be a reduced root system of rank . A Weyl group multiple Dirichlet series for is a Dirichlet series in complex variables , initially converging for sufficiently large, that has meromorphic continu...
欧洲评估师协会联合会（The European Group of Valuers' Associations）
欧洲评估师协会联合会 The European Group of Valuers' Associations
2014/7/7
A pan-European association of professional bodies working for standards, ethics and quality in the real estate valuation market.
Group work 小班教学法在双语课程教学中的应用
groupwork小班教学法 组织协调能力 集体讨论
2015/7/26
以英语为主要教学语言的双语课教学中，传统灌输式课堂教学模式的弊端日益显现。传统教学模式所带来的学习积极性差，课堂气氛沉闷、学生参与性低等弊端越来越成为阻碍国际化经济管理类专业人才培养的绊脚石。Groupwork小班教学法是一种主动式的学习方法，能很大程度上调动学生的学习积极性和参与感。本文将重点探讨双语教学的现状，以及如何有效地开展groupwork。