Dipartimento di Statistica e Metodi Quantitativi

Friday June 19th 2015, 11.30h

Sala del Consiglio (edificio U7, 4° piano, 4064) Via Bicocca degli Arcimboldi, 8 – 20126 Milano

“Robust model-based clustering and mixture modeling by using trimming and restrictions”

Agustín Mayo-Iscar - Universidad de Valladolid and IMUVA

Abstract

The use of trimming procedures is common in many statistical settings to achieve

robustness against outlying observations. Notably, to obtain robustness in model-based

clustering and mixture modeling, the only adoption of trimming is not enough. Constraints

on the scatters, corresponding to the clusters or to the mixture components, are needed

too. The talk presents robust methodology based on the joint application of trimming and

feasible restrictions for different clusters and mixture models settings. As it is typical in all

proposals designed for this aim, some input parameter needs to chosen, to set the

trimming level and the scatter constraints. Data driven tools for helping the user in

choosing such values will be also presented.

for more info:

e-mail: [log in to unmask] http://www.dismeq.unimib.it

2015-06-15 15:21 GMT+02:00 James Phillips <[log in to unmask]>:

We provide business supplies and services to help our customers work better – whatever their workplace. We are a single source for everything customers need to be more productive, including the latest technology, core office supplies, print and document services, business services, facilities products, furniture, and school essentials.

Office Depot has combined pro forma annual sales of approximately $16 billion, employs about 56,000 people, and serves consumers and businesses in 56 countries with more than 1,800 retail stores, various eCommerce sites and a dedicated business-to-business sales organization – all delivered through a global network of wholly owned operations, joint ventures, franchisees, licensees and alliance partners.

Within Europe, Office Depot operates in thirteen countries through its two main brands Office Depot and Viking, with retail stores in France and Sweden.

The e-Commerce & Campaign Teams in Venlo and Milton Keynes are responsible for Merchandizing Technology, Personalization, Email Marketing, Campaign Execution and Web Analytics for the European market at Office Depot and Viking.

This is the role

As Sr. Web Analytics Specialist you are responsible for data and model preparation, analysis and insight generation, delivery and advice to internal and external customers, supporting the commercial process and attracting new and valuable data sources, in order to meet and preferably go beyond the customer data, information or insight need and contribute to the continuous enhancement of Office Depot’s insight delivery capabilities. The Sr. Web Analytics Specialist has a strong contribution to and/or leading role in Web Analytics and Site Optimization projects. As Sr. Web Analyst you take a leading role in providing insight into customer needs and behavior on the Office Depot and Viking websites. The primary focus of the Sr. Web Analytics Specialist is to help analyze and optimize the performance of the site; improve Campaign effectiveness, improve Personalization, Onsite Search and Online Merchandising. The Sr. Web Analytics Specialist will work on innovation, with the latest technology, together with a transformative, dynamic and enthusiastic team.
cannot accept applications via email.

... More information: http://bit.ly/1GH6Wsd

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Francesca Greselin

Department of Statistics and Quantitative Methods

University of Milano Bicocca

Tel +39 02 6448 3118

Fax +39 02 6448 3105

www.economia.unimib.it/GRESELIN

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Skype: francesca.greselin