LEARNING MACHINE APPLIED TO THE ANALYSIS OF CITY LOGISTICS TWITTER CONTENT

In our Machine Learning research projects, we are interested in using the tools of Natural Language Processing (NLP). In the example shown here, we analyze the content of twitter related to City Logistics in order to create a map of concepts.

The use of unsupervised learning algorithms such as dimensional reduction (Truncated singular value decomposition), clustering (k-means) and manifold learning (t-distributed Stochastic Neighbor Embedding) allowed us to autmatically analyze more than 110000 tweets and therefore generate the following “map of concepts“:

Click here for a full screen visualisation.

This work was submitted to the 11th  International Conference on City Logistics. For more information, you can contact  Simon Tamayo.

Abstract

City Logistics is characterized by multiple stakeholders that often have different objectives and constraints and therefore, different views of this complex system. Nowadays social media is one of the biggest channels of public expression and it is often used to communicate opinions and content related to City Logistics. The main idea of this research is that analyzing content from mainstream social media, such as Twitter, could help in the understanding of how people see urban logistics. This paper proposes a methodology for collecting content related to City Logistics from Twitter and implementing Machine Learning techniques, and more specifically unsupervised learning and Natural Language Processing (NLP), to perform content and sentiment analysis. The proposed methodology is applied to a set of 110 000 tweets containing City Logistics key-terms, that were posted from 2007 to 2018. Results allowed building an interest map of concepts related to City Logistics and a sentiment assessment to determine if City Logistics posts are positive, negative orneutral.

Keywords: City Logistics, Machine Learning, natural language processing, Twitter.

PARTICIPATION IN THE CONFERENCE ICUTCL 2018 LONDON (20TH INTERNATIONAL CONFERENCE ON URBAN TRANSPORTATION AND CITY LOGISTICS)

On May 14th and 15th, the Urban Logistics Chair will participate in the international conference ICUTCL 2018 “20th International Conference on Urban Transportation and City Logistics” in London.

The Chair will present the research work titled “Statistic Regression and Open Data Approach for Identifying Economic Indicators That Influence e-Commerce“.

In addition, Simon Tamayo was appointed Chairman for Session IX of the conference.


Summary of the presented work

This paper presents a statistical approach to identify explanatory variables linearly related to e-commerce sales. The proposed methodology allows specifying a regression model in order to quantify the relevance between openly available data (economic and demographic) and national e-commerce sales. The proposed methodology consists in collecting data, preselecting input variables, performing regressions for choosing variables and models, testing and validating. The usefulness of the proposed approach is twofold: on the one hand, it allows identifying the variables that influence e- commerce sales with an accessible approach. And on the other hand, it can be used to model future sales from the input variables. Results show that e-commerce is linearly dependent on 11 economic and demographic indicators.

SYMPOSIUM MAY 17th “FUTURE TRENDS AND TECHNOLOGIES FOR URBAN MOBILITY AND CITY LOGISTICS”

The Urban Logistics Chair at MINES ParisTech organises a symposium entitled “Future Trends and Technologies for Urban Mobility and City Logistics”.

This symposium will take place on May 17th from 3:00 pm to 6:00 pm in the room L109, at MINES ParisTech (60 boulevard Saint-Michel, 75006, Paris). This event is free but registration is mandatory.

To participate in this event, please register in the following form: https://goo.gl/forms/uLGnuNXbpLCVlHdW2

The symposium will be hosted by professor Jacek Zak, from the Poznan University of Technology, who will give two presentations (in English):

  • The Logistics Concept of the New Silk Route (Chinese – European Cooperation)
  • New Ideas and Solutions for Urban Mobility and City Logistics (incl. Autonomous Vehicles) – Design and Evaluation

Pr. Jacek Żak is an Associate Professor at Poznań University of Technology, Faculty of Engineering Management (Poland). For many years he has been a senior consultant at the Institute of Logistics and Warehousing in Poznan, and at the F5 (former W. Frackowiak and Partners) Consulting Company. He is the co-founder of the Private Undergraduate School of Logistics in Poznań and City Nav. Co. Ltd. – owner and operator of the www.jakdojade.pl portal (recently sold to ONET Holding).

HEATMAP OF FRENCH RESTAURANTS

A part of the works of the Urban Logistics Chaire consists in modelling urban logistics flows using information available in Open Data portals and open source Geographic Information Systems (GIS).

The example shown here explores automatic query tools for OpenStreetMap and interactive mapping (Folium / Leafet).

The map below proposes a heatmap of restaurants in France

Click here for a full screen view.

ATHENS WEEK 2018 «UNDERSTANDING, MODELING AND SIMULATING URBAN FREIGHT»

As part of the Athens Week, the Urban Logistics Chair organized the course MP09 “Urban Logistics: Understanding, modeling and simulating urban freight” at Mines ParisTech, from Monday 19th to Friday23rd March 2017.

35 students took part in this course, coming from the following schools:

  • Germany: Technische Universität München (TU Munich)
  • Belgium: Katholieke Universiteit Leuven (KUL)
  • Spain: Universidad Politécnica of Madrid
  • France: Arts et Métiers ParisTech
  • France: ParisTech Mines
  • France: Institut d’Optique ParisTech
  • Italy: Politecnico di Milano (PM)
  • Norway: Norges teknisk-naturvitenskapelige universitet (NTNU)
  • Netherlands: Delft University of Technology (TU Delft)
  • Poland: Warsaw University of Technology (WUT)
  • Portugal: Instituto Superior Técnico (IST)
  • Czech Republic: Czech technical university in Prague (CVUT)
  • Turkey: Istanbul Technical University (ITU)

PARTICIPATION IN THE 2017 I-NUF METRANS CONFERENCE IN LONG BEACH (USA)

The Chair participated in the 7th International Urban Freight Conference “Metrans I-NUF”, held in Long Beach (California) from October 17th to Octobre 20th, 2017.

The Chair presented the following three papers:

  • “Quantifying flows of urban goods using image processing and machine learning”, Simon TAMAYO, Xavier SATTLER & Arthur GAUDRON.
  • “Simulating environmental impacts of urban deliveries”, Sarra JLASSI, Simon TAMAYO, Arnaud de LA FORTELLE & Arthur GAUDRON.
  • “Truck-bike multimodal distribution scheme for urban deliveries simulation for operational planning”, Arthur GAUDRON, Simon TAMAYO & Arnaud de LA FORTELLE.

NEW PUBLICATION: “SIMULATING IMPACTS OF REGULATORY POLICIES ON URBAN FREIGHT: APPLICATION TO THE CATERING SETTING”

Sarra JLASSI, Simon TAMAYO, Arthur GAUDRON and Arnaud de LA FORTELLE presented this publication in the 6th IEEE International Conference on Advanced Logistics and Transport(the international conference “IEEE ICALT 2017“.

This paper proposes a “multi-agent and discrete event” simulation model to measure the impact of regulatory measures (vehicle size and access time) on the distribution of products in the catering sector.

For different regulation scenarios, the model allows to consider the total distances traveled, the number of vehicles used, the load rates and the emissions. The model was used to simulate the distribution of Parisian restaurants from the Rungis Market.

Abstract— Regulatory policies aim at reducing the negative effects of urban freight transportation, especially those related to traffic, emissions and noise. Nonetheless, the stakeholders in city logistics often have divergent objectives, which lead to difficulties upon defining the best possible choices regarding regulation, for it yields important economic impacts. This paper presents a multi-agent and discrete-event based simulation of urban deliveries that aims at evaluating the impacts of regulatory policies. Restrictions regarding vehicle weights and time windows are considered in order to measure the impacts on deliveries based on total distances, number of vehicles, loading rates and emissions. The simulation framework is applied to the delivery services for restaurants, in which 4 scenarios of regulation are evaluated in the city of Paris. One originality of the proposed approach is to use real data for the instantiation of agents and the GIS in the simulation.

FRANCE LOGISTIQUE 2025

Convinced of the stakes and aware of the need to prepare society and the economic actors for the revolutions in progress, the Government has conducted a national analysis in the context of the National Conference on Logistics.

Thus, at the end of the Council of Ministers on 24 March 2016, the Government agreed to undertake the challenges listed in the plan of action  “France Logistique 2025”.

Read here the report the framework document “France Logistique 2025” following the national conference on logistics (in french).

ATHENS WEEK 2017 «UNDERSTANDING, MODELING AND SIMULATING URBAN FREIGHT»

As part of the Athens Week, the Urban Logistics Chair organized the course MP09 “Urban Logistics: Understanding, modeling and simulating urban freight” at Mines ParisTech, from Monday 13th to Friday 17th March 2017.

For more details on speakers and presentations, download the program of the week here.

33 students took part in this course, coming from the following schools:

  • Germany: Technische Universität München (TU Munich)
  • Belgium: Katholieke Universiteit Leuven (KUL)
  • Spain: Universidad Politécnica of Madrid
  • France: Arts et Métiers ParisTech
  • France: ParisTech Mines
  • Italy: Politecnico di Milano (PM)
  • Norway: Norges teknisk-naturvitenskapelige universitet (NTNU)
  • Netherlands: Delft University of Technology (TU Delft)
  • Poland: Warsaw University of Technology (WUT)
  • Portugal: Instituto Superior Técnico (IST)
  • Czech Republic: Czech technical university in Prague (CVUT)
  • Turkey: Istanbul Technical University (ITU)

PRESENTATION AT THE INTERNATIONAL EXPERIMENTAL WORKSHOP FOR THE BIONUMERIC CITY

The Urban Logistics Chair presented the stakes of logistics in the city, as well as a synthesis of its work during a hackathon open to the public on the 2nd of February 2017 at the Cité des Sciences.

In this event, a group of about about twenty students and professionals, discussed the possible usage of digital technologies in the cities of tomorrow and in particular their relationships with agriculture and logistical flows.

For more information about the workshop visit www.biodigitalcity.org