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212 lines
7.4 KiB
212 lines
7.4 KiB
{
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"cells": [
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# Identifier les leaders d’opinion du domaine de l’IA sur Twitter\n",
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"\n",
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"Auteur : Jiayue LIU (MSc Data Management, Paris School of Business)\n",
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"\n",
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"Date : 18 Avril 2021 "
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"# Installer toutes les librairies nécessaires à l'exercice\n",
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"import tweepy\n",
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"import pandas as pd\n",
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"pd.options.mode.chained_assignment = None\n",
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"import igraph as ig\n",
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"import datetime\n",
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"\n",
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"# Authentification API\n",
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"auth = tweepy.OAuthHandler(\n",
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" 'g5ktEfyoenGVaxGFbbz5Xt6CH', \n",
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" 'D5RFlzzO5FMDvFFkUf5piWFF1mNKpgzEZpZEjC40uP7ZA4QhrY')\n",
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"auth.set_access_token(\n",
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" '1313171160973139973-eVa2VAFWUoha0lLgUzVwCQwQycWJ0c', \n",
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" 'c4DdmZV6DWV2NwjpBTy5cZlN9tdPvwACbUrwWQyj3RKfX')\n",
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"api = tweepy.API(auth,wait_on_rate_limit=True)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"# Extraire les tweets contenant les mots-clés définis\n",
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"hashtags = ['#IA', '#IntelligenceArtificielle']\n",
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"results = tweepy.Cursor(api.search, q=hashtags, lang='fr').items()\n",
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"\n",
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"# Convertir les résultats de recherche du json en dataframe\n",
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"json_data = [r._json for r in results]\n",
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"results_df = pd.json_normalize(json_data)\n",
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"\n",
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"results_df.to_csv(\"tweets_database.csv\", sep=\",\")"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"# Garder des informations qui nous intéresseraient en renommant les colonnes\n",
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"simple_results = results_df[['created_at',\n",
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" 'user.location',\n",
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" 'user.screen_name',\n",
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" 'user.followers_count',\n",
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" 'entities.user_mentions']]\n",
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"simple_results.columns = ['time',\n",
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" 'location',\n",
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" 'user_id',\n",
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" 'num_followers',\n",
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" 'mentions']\n",
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"\n",
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"# Afficher le résultat brute mais simplifié\n",
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"today = datetime.date.today()\n",
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"week_ago = today - datetime.timedelta(days=7)\n",
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"print(\"Pendant la semaine du\", week_ago.strftime(\"%d/%m/%Y\"),\n",
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" \"au\", today.strftime(\"%d/%m/%Y\"),\n",
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" \", les tweets en français et ayant pour hashtags #IA ou #IntelligenceArtificielle sont les suivants : \\n\",\n",
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" simple_results)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"# Convertir la colonne \"mentions\" en liste simple\n",
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"mentioned_users = []\n",
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"for mention in simple_results.mentions:\n",
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" mentioned_users.append(list(map(lambda d: d['screen_name'], mention)))\n",
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"simple_results['mentions'] = mentioned_users\n",
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"\n",
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"# Stocker tous les edges et nodes dans des dataframes\n",
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"edges_df = simple_results.loc[:, ['mentions', 'user_id', 'num_followers']]\n",
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"edges_df = edges_df.explode('mentions').reset_index().drop('index',1)\n",
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"\n",
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"mention_list = edges_df.mentions.to_list()\n",
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"user_list = edges_df.user_id.to_list()\n",
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"nodes_list = set(user_list + mention_list)\n",
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"\n",
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"edges = edges_df.dropna().reset_index().drop('index',1)\n",
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"nodes = pd.DataFrame(nodes_list)\n",
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"nodes.columns = (['user_id'])\n",
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"nodes = pd.merge(nodes, edges, on='user_id', how='left')\n",
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"nodes = nodes.drop(columns=['mentions']).groupby(by='user_id').mean().reset_index()\n",
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"\n",
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"print(\"La liste des mentions entre les utilisateurs : \\n\",\n",
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" edges)\n",
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"print(\"La liste des utilisateurs Twitter ayant publié du contenu relatif à l'IA durant la semaine passée : \\n\",\n",
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" nodes)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"# Générer le graphe représentant le réseau social avec le package iGraph\n",
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"\n",
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"kol_map = ig.Graph.DataFrame(edges,\n",
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" directed = True,\n",
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" vertices = nodes)\n",
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"kol_map.vs['name'] = nodes['user_id']\n",
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"kol_map.vs['num_followers'] = nodes['num_followers']*0.001"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"# Comparer le nombre d'abonnés des utilisateurs du réseau\n",
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"nodes['num_followers'] = nodes['num_followers'].astype(pd.Int64Dtype())\n",
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"rank_followers = nodes.sort_values(by='num_followers',\n",
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" ascending=False)\n",
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"rank_followers"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"# Calculer la centralité de degré en utilisant le package igraph\n",
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"out_degrees = pd.DataFrame({'node': nodes['user_id'],\n",
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" 'degree':kol_map.degree(mode=\"out\")})\n",
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"out_degrees = out_degrees.sort_values(by='degree',\n",
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" ascending=False)\n",
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"\n",
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"print(\"Les dix comptes Twitter ayant été le plus mentionnés durant la semaine passée sont : \\n\",\n",
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" out_degrees.head(10))"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"# Apppliquer la méthode \"Fruchterman-Reingold force-directed\" pour construire le réseau\n",
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"layout = kol_map.layout('fr')\n",
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"\n",
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"visual_style = {}\n",
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"visual_style[\"vertex_size\"] = kol_map.degree()\n",
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"visual_style[\"vertex_color\"] = \"#1DA1F2\"\n",
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"visual_style[\"vertex_label\"] = kol_map.vs[\"name\"]\n",
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"visual_style[\"vertex_label_size\"] = 5\n",
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"visual_style[\"edge_arrow_size\"] = 0.5\n",
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"visual_style[\"layout\"] = layout\n",
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"visual_style[\"bbox\"] = (500, 500)\n",
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"visual_style[\"margin\"] = 20\n",
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"\n",
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"kol_map0 = kol_map.copy()\n",
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"visual_style0 = visual_style.copy()\n",
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"visual_style0[\"vertex_size\"] = kol_map.vs['num_followers']\n",
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"\n",
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"# Afficher et sauvegarder les graphes générés\n",
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"print(\"Carte représentant le réseau d'influence des comptes Twitter du domaine de l'IA : \\n\",\n",
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" \"(la taille des noeuds est proportionnelle à leur degré sortant) \\n\")\n",
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"ig.plot(kol_map, \"twitter_network_mapping_degree.pdf\", **visual_style)\n",
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"\n",
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"print(\"Carte représentant le réseau d'influence des comptes Twitter du domaine de l'IA : \\n\"\n",
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" \"(la taille des noeuds est proportionnelle à leur nombre d'abonnés) \\n\")\n",
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"ig.plot(kol_map0, \"twitter_network_mapping_follower.pdf\", **visual_style0)"
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]
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.8.5"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 4
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}
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