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Comment:terminate le slide dell'esercitazione finale
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User & Date: EnricoGiampieri 2017-03-17 09:17:07
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2017-03-17
09:20
corretta la visualizzazione delle slide dell'esercitazione finale Leaf check-in: 41e97fa514 user: EnricoGiampieri tags: trunk
09:17
terminate le slide dell'esercitazione finale check-in: 57209fe163 user: EnricoGiampieri tags: trunk
2017-03-16
15:47
aggiunti gli script di soluzione delle vecchie lezioni e di dimostrazione usati check-in: 5cabac5e1f user: EnricoGiampieri tags: trunk
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<div class="text_cell_render border-box-sizing rendered_html">
<p>Per i più audaci: esiste la rete di citazioni dei paper teorici</p>
<h2 id="http://snap.stanford.edu/data/cit-HepTh.html"><a href="http://snap.stanford.edu/data/cit-HepTh.html">http://snap.stanford.edu/data/cit-HepTh.html</a><a class="anchor-link" href="#http://snap.stanford.edu/data/cit-HepTh.html">&#182;</a></h2><p>che contiene anche i metadati sugli articoli, inclusi i nomi degli autori.</p>
<p>Provate a fare il parsing del file degli autori ed estrarre il numero di autori per paper, correlandolo con il successo del paper in questione!</p>

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<div class=" highlight hl-ipython3"><pre><span></span><span class="o">%</span><span class="k">mkdir</span> esercitazione
<span class="o">%</span><span class="k">cd</span> esercitazione
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<div class=" highlight hl-ipython3"><pre><span></span><span class="o">!</span>wget http://snap.stanford.edu/data/cit-HepPh.txt.gz
<span class="o">!</span>gunzip -k cit-HepPh.txt.gz
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<pre>--2017-03-16 15:45:34--  http://snap.stanford.edu/data/cit-HepPh.txt.gz


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Length: 1664504 (1.6M) [application/x-gzip]

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<div class=" highlight hl-ipython3"><pre><span></span><span class="o">!</span>wget http://snap.stanford.edu/data/cit-HepPh-dates.txt.gz
<span class="o">!</span>gunzip -k cit-HepPh-dates.txt.gz
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<pre>--2017-03-16 15:45:48--  http://snap.stanford.edu/data/cit-HepPh-dates.txt.gz
Resolving snap.stanford.edu (snap.stanford.edu)... 171.64.75.80
Connecting to snap.stanford.edu (snap.stanford.edu)|171.64.75.80|:80... connected.
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<div class=" highlight hl-ipython3"><pre><span></span><span class="o">!</span>wget http://snap.stanford.edu/data/cit-HepTh-dates.txt.gz
<span class="o">!</span>gunzip -k cit-HepTh-dates.txt.gz
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<pre>--2017-03-16 15:45:50--  http://snap.stanford.edu/data/cit-HepTh-dates.txt.gz
Resolving snap.stanford.edu (snap.stanford.edu)... 171.64.75.80
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HTTP request sent, awaiting response... 200 OK
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<div class=" highlight hl-ipython3"><pre><span></span><span class="o">!</span>wget http://snap.stanford.edu/data/cit-HepTh.txt.gz
<span class="o">!</span>gunzip -k cit-HepTh.txt.gz
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<pre>--2017-03-16 15:45:53--  http://snap.stanford.edu/data/cit-HepTh.txt.gz
Resolving snap.stanford.edu (snap.stanford.edu)... 171.64.75.80
Connecting to snap.stanford.edu (snap.stanford.edu)|171.64.75.80|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 1317497 (1.3M) [application/x-gzip]
Saving to: ‘cit-HepTh.txt.gz’

cit-HepTh.txt.gz    100%[=====================&gt;]   1.26M   709KB/s   in 1.8s   

2017-03-16 15:45:55 (709 KB/s) - ‘cit-HepTh.txt.gz’ saved [1317497/1317497]

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<div class=" highlight hl-ipython3"><pre><span></span><span class="o">!</span>wget http://snap.stanford.edu/data/cit-HepTh-abstracts.tar.gz








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<div class="text_cell_render border-box-sizing rendered_html">
<p>Per i più audaci: esiste la rete di citazioni dei paper teorici</p>
<h2 id="http://snap.stanford.edu/data/cit-HepTh.html"><a href="http://snap.stanford.edu/data/cit-HepTh.html">http://snap.stanford.edu/data/cit-HepTh.html</a><a class="anchor-link" href="#http://snap.stanford.edu/data/cit-HepTh.html">&#182;</a></h2><p>che contiene anche i metadati sugli articoli, inclusi i nomi degli autori.</p>
<p>Provate a fare il parsing del file degli autori ed estrarre il numero di autori per paper, correlandolo con il successo del paper in questione!</p>

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<h2 id="file-di-riferimento">file di riferimento<a class="anchor-link" href="#file-di-riferimento">&#182;</a></h2><h3 id="fisica-delle-alte-energie,-sperimentale">fisica delle alte energie, sperimentale<a class="anchor-link" href="#fisica-delle-alte-energie,-sperimentale">&#182;</a></h3><h4 id="collegamenti-fra-gli-ID-degli-articoli">collegamenti fra gli ID degli articoli<a class="anchor-link" href="#collegamenti-fra-gli-ID-degli-articoli">&#182;</a></h4><p><a href="http://snap.stanford.edu/data/cit-HepPh.txt.gz">http://snap.stanford.edu/data/cit-HepPh.txt.gz</a></p>
<h4 id="data-di-pubblicazione-degli-articoli">data di pubblicazione degli articoli<a class="anchor-link" href="#data-di-pubblicazione-degli-articoli">&#182;</a></h4><p><a href="http://snap.stanford.edu/data/cit-HepPh-dates.txt.gz">http://snap.stanford.edu/data/cit-HepPh-dates.txt.gz</a></p>
<h3 id="fisica-delle-alte-energie,-teorica">fisica delle alte energie, teorica<a class="anchor-link" href="#fisica-delle-alte-energie,-teorica">&#182;</a></h3><h4 id="collegamenti-fra-gli-ID-degli-articoli">collegamenti fra gli ID degli articoli<a class="anchor-link" href="#collegamenti-fra-gli-ID-degli-articoli">&#182;</a></h4><p><a href="http://snap.stanford.edu/data/cit-HepTh.txt.gz">http://snap.stanford.edu/data/cit-HepTh.txt.gz</a></p>
<h4 id="data-di-pubblicazione-degli-articoli">data di pubblicazione degli articoli<a class="anchor-link" href="#data-di-pubblicazione-degli-articoli">&#182;</a></h4><p><a href="http://snap.stanford.edu/data/cit-HepTh-dates.txt.gz">http://snap.stanford.edu/data/cit-HepTh-dates.txt.gz</a></p>
<h4 id="abstract-degli-articoli-con-gli-autori">abstract degli articoli con gli autori<a class="anchor-link" href="#abstract-degli-articoli-con-gli-autori">&#182;</a></h4><p><a href="http://snap.stanford.edu/data/cit-HepTh-abstracts.tar.gz">http://snap.stanford.edu/data/cit-HepTh-abstracts.tar.gz</a></p>

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<div class=" highlight hl-ipython3"><pre><span></span><span class="o">%</span><span class="k">cd</span> esercitazione

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<div class=" highlight hl-ipython3"><pre><span></span><span class="kn">import</span> <span class="nn">os</span>
<span class="n">os</span><span class="o">.</span><span class="n">getcwd</span><span class="p">()</span>
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<pre>&#39;/home/enrico/lavoro/DataProgrammingCourse/esercitazione&#39;</pre>
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<p>vediamo scaricare ed estrarre i file con python3, usando solo le librerie di base</p>

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<div class=" highlight hl-ipython3"><pre><span></span><span class="kn">from</span> <span class="nn">urllib.request</span> <span class="k">import</span> <span class="n">urlretrieve</span>
<span class="n">url</span> <span class="o">=</span> <span class="s2">&quot;http://snap.stanford.edu/data/&quot;</span>
<span class="n">filename</span> <span class="o">=</span> <span class="s2">&quot;cit-HepPh.txt.gz&quot;</span>
<span class="n">local_filename</span><span class="p">,</span> <span class="n">headers</span> <span class="o">=</span> <span class="n">urlretrieve</span><span class="p">(</span><span class="n">url</span><span class="o">+</span><span class="n">filename</span><span class="p">,</span> <span class="n">filename</span><span class="p">)</span>
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<div class=" highlight hl-ipython3"><pre><span></span><span class="kn">import</span> <span class="nn">gzip</span>
<span class="k">with</span> <span class="n">gzip</span><span class="o">.</span><span class="n">open</span><span class="p">(</span><span class="s1">&#39;cit-HepPh.txt.gz&#39;</span><span class="p">,</span> <span class="s1">&#39;rb&#39;</span><span class="p">)</span> <span class="k">as</span> <span class="n">source</span><span class="p">:</span>
    <span class="k">with</span> <span class="nb">open</span><span class="p">(</span><span class="s1">&#39;cit-HepPh_python.txt&#39;</span><span class="p">,</span> <span class="s1">&#39;wb&#39;</span><span class="p">)</span> <span class="k">as</span> <span class="n">destination</span><span class="p">:</span>
        <span class="n">destination</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">source</span><span class="o">.</span><span class="n">read</span><span class="p">())</span>
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<p>in generale posso estrarre gli archivi in modo più facile, ma per qualche motivo a me oscuro il formato ".gz" puro non sembra essere supportato direttamente.</p>

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<div class=" highlight hl-ipython3"><pre><span></span><span class="kn">from</span> <span class="nn">shutil</span> <span class="k">import</span> <span class="n">unpack_archive</span>
<span class="n">unpack_archive</span><span class="p">(</span><span class="n">filename</span><span class="p">)</span>
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<p>dalla linea di comando posso usare i comandi wget ed gunzip</p>

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<div class=" highlight hl-ipython3"><pre><span></span><span class="o">!</span>wget http://snap.stanford.edu/data/cit-HepPh.txt.gz

</pre></div>

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<pre>--2017-03-17 09:48:12--  http://snap.stanford.edu/data/cit-HepPh.txt.gz
Resolving snap.stanford.edu (snap.stanford.edu)... 171.64.75.80
Connecting to snap.stanford.edu (snap.stanford.edu)|171.64.75.80|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 1664504 (1.6M) [application/x-gzip]
Saving to: ‘cit-HepPh.txt.gz’

cit-HepPh.txt.gz    100%[=====================&gt;]   1.59M   555KB/s   in 2.9s   

2017-03-17 09:48:25 (555 KB/s) - ‘cit-HepPh.txt.gz’ saved [1664504/1664504]

</pre>
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<div class="inner_cell">
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<div class=" highlight hl-ipython3"><pre><span></span><span class="o">!</span>gunzip -k cit-HepPh.txt.gz
</pre></div>

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<div class="input">
<div class="prompt input_prompt">In&nbsp;[10]:</div>
<div class="inner_cell">
    <div class="input_area">
<div class=" highlight hl-ipython3"><pre><span></span><span class="o">!</span>md5sum cit-HepPh.txt
<span class="o">!</span>md5sum cit-HepPh_python.txt
</pre></div>

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<pre>e79f6ef17a4b0a2e94959af6fa88de72  cit-HepPh.txt
e79f6ef17a4b0a2e94959af6fa88de72  cit-HepPh_python.txt









</pre>
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<div class="prompt input_prompt">






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<div class="inner_cell">
<div class="text_cell_render border-box-sizing rendered_html">
<p>Per chi volesse scaricare il file degli abstract, non essendo in formato gz, è necessario usare il comando <code>tar</code> invece di <code>gunzip</code>.</p>


















</div>
</div>




</div>
<div class="cell border-box-sizing code_cell rendered">
<div class="input">
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<div class=" highlight hl-ipython3"><pre><span></span><span class="o">!</span>wget http://snap.stanford.edu/data/cit-HepTh-abstracts.tar.gz

Changes to Esercitazione finale.ipynb. 

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{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {


    "slideshow": {
     "slide_type": "slide"
    }
   },
   "source": [
    "# Rete di citazioni di ArXiv per la fisica delle particelle\n",
    "\n",
................................................................................
    "* la coppia di paper citante-citato\n",
    "* la data di pubblicazione di ciascun paper"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {


    "slideshow": {
     "slide_type": "slide"
    }
   },
   "source": [
    "Passi dell'esercitazione:\n",
    "\n",
................................................................................
    "* evoluzione nel tempo delle citazioni\n",
    "    - qual è il numero di citazioni nel tempo di ciascun paper?"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {


    "slideshow": {
     "slide_type": "slide"
    }
   },
   "source": [
    "Per i più audaci: esiste la rete di citazioni dei paper teorici\n",
    "\n",
................................................................................
    "\n",
    "che contiene anche i metadati sugli articoli, inclusi i nomi degli autori.\n",
    "\n",
    "Provate a fare il parsing del file degli autori ed estrarre il numero di autori per paper, correlandolo con il successo del paper in questione!"
   ]
  },
  {



































   "cell_type": "code",
   "execution_count": 41,
   "metadata": {
    "collapsed": false,


    "slideshow": {
     "slide_type": "slide"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "/home/enrico/lavoro/DataProgrammingCourse/esercitazione\n"
     ]
    }
   ],
   "source": [
    "%mkdir esercitazione\n",
    "%cd esercitazione"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 42,
   "metadata": {
    "collapsed": false,
    "slideshow": {
     "slide_type": "slide"
    }
   },
   "outputs": [
    {
     "name": "stdout",






     "output_type": "stream",


     "text": [
      "--2017-03-16 15:45:34--  http://snap.stanford.edu/data/cit-HepPh.txt.gz\n",
      "Resolving snap.stanford.edu (snap.stanford.edu)... 171.64.75.80\n",
      "Connecting to snap.stanford.edu (snap.stanford.edu)|171.64.75.80|:80... connected.\n",
      "HTTP request sent, awaiting response... 200 OK\n",
      "Length: 1664504 (1.6M) [application/x-gzip]\n",
      "Saving to: ‘cit-HepPh.txt.gz.1’\n",
      "\n",
      "cit-HepPh.txt.gz.1  100%[=====================>]   1.59M   805KB/s   in 2.0s   \n",
      "\n",
      "2017-03-16 15:45:47 (805 KB/s) - ‘cit-HepPh.txt.gz.1’ saved [1664504/1664504]\n",
      "\n"
     ]
    }
   ],







   "source": [















    "!wget http://snap.stanford.edu/data/cit-HepPh.txt.gz\n",
    "!gunzip -k cit-HepPh.txt.gz"

   ]
  },
  {
   "cell_type": "code",
   "execution_count": 43,



















































   "metadata": {
    "collapsed": false,
    "slideshow": {
     "slide_type": "slide"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "--2017-03-16 15:45:48--  http://snap.stanford.edu/data/cit-HepPh-dates.txt.gz\n",
      "Resolving snap.stanford.edu (snap.stanford.edu)... 171.64.75.80\n",
      "Connecting to snap.stanford.edu (snap.stanford.edu)|171.64.75.80|:80... connected.\n",
      "HTTP request sent, awaiting response... 200 OK\n",
      "Length: 96569 (94K) [application/x-gzip]\n",
      "Saving to: ‘cit-HepPh-dates.txt.gz.1’\n",
      "\n",
      "cit-HepPh-dates.txt 100%[=====================>]  94.31K   174KB/s   in 0.5s   \n",
      "\n",
      "2017-03-16 15:45:49 (174 KB/s) - ‘cit-HepPh-dates.txt.gz.1’ saved [96569/96569]\n",
      "\n"
     ]
    }
   ],
   "source": [
    "!wget http://snap.stanford.edu/data/cit-HepPh-dates.txt.gz\n",















    "!gunzip -k cit-HepPh-dates.txt.gz"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 44,
   "metadata": {
    "collapsed": false,
    "slideshow": {
     "slide_type": "slide"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "--2017-03-16 15:45:50--  http://snap.stanford.edu/data/cit-HepTh-dates.txt.gz\n",
      "Resolving snap.stanford.edu (snap.stanford.edu)... 171.64.75.80\n",
      "Connecting to snap.stanford.edu (snap.stanford.edu)|171.64.75.80|:80... connected.\n",
      "HTTP request sent, awaiting response... 200 OK\n",
      "Length: 96569 (94K) [application/x-gzip]\n",
      "Saving to: ‘cit-HepTh-dates.txt.gz’\n",
      "\n",
      "cit-HepTh-dates.txt 100%[=====================>]  94.31K   175KB/s   in 0.5s   \n",
      "\n",
      "2017-03-16 15:45:51 (175 KB/s) - ‘cit-HepTh-dates.txt.gz’ saved [96569/96569]\n",
      "\n"
     ]
    }
   ],
   "source": [
    "!wget http://snap.stanford.edu/data/cit-HepTh-dates.txt.gz\n",
    "!gunzip -k cit-HepTh-dates.txt.gz"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 45,
   "metadata": {
    "collapsed": false,
    "slideshow": {
     "slide_type": "slide"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "--2017-03-16 15:45:53--  http://snap.stanford.edu/data/cit-HepTh.txt.gz\n",
      "Resolving snap.stanford.edu (snap.stanford.edu)... 171.64.75.80\n",
      "Connecting to snap.stanford.edu (snap.stanford.edu)|171.64.75.80|:80... connected.\n",
      "HTTP request sent, awaiting response... 200 OK\n",
      "Length: 1317497 (1.3M) [application/x-gzip]\n",
      "Saving to: ‘cit-HepTh.txt.gz’\n",
      "\n",
      "cit-HepTh.txt.gz    100%[=====================>]   1.26M   709KB/s   in 1.8s   \n",
      "\n",
      "2017-03-16 15:45:55 (709 KB/s) - ‘cit-HepTh.txt.gz’ saved [1317497/1317497]\n",
      "\n"
     ]
    }
   ],
   "source": [
    "!wget http://snap.stanford.edu/data/cit-HepTh.txt.gz\n",
    "!gunzip -k cit-HepTh.txt.gz"

   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true,


    "slideshow": {
     "slide_type": "slide"
    }
   },
   "outputs": [],
   "source": [
    "!wget http://snap.stanford.edu/data/cit-HepTh-abstracts.tar.gz\n",
    "# questo comando creerà diverse cartelle con dentro i singoli file degli abstract\n",
    "!tar -xzf cit-HepTh-abstracts.tar.gz"






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{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {
    "deletable": true,
    "editable": true,
    "slideshow": {
     "slide_type": "slide"
    }
   },
   "source": [
    "# Rete di citazioni di ArXiv per la fisica delle particelle\n",
    "\n",
................................................................................
    "* la coppia di paper citante-citato\n",
    "* la data di pubblicazione di ciascun paper"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
    "deletable": true,
    "editable": true,
    "slideshow": {
     "slide_type": "slide"
    }
   },
   "source": [
    "Passi dell'esercitazione:\n",
    "\n",
................................................................................
    "* evoluzione nel tempo delle citazioni\n",
    "    - qual è il numero di citazioni nel tempo di ciascun paper?"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
    "deletable": true,
    "editable": true,
    "slideshow": {
     "slide_type": "slide"
    }
   },
   "source": [
    "Per i più audaci: esiste la rete di citazioni dei paper teorici\n",
    "\n",
................................................................................
    "\n",
    "che contiene anche i metadati sugli articoli, inclusi i nomi degli autori.\n",
    "\n",
    "Provate a fare il parsing del file degli autori ed estrarre il numero di autori per paper, correlandolo con il successo del paper in questione!"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
    "slideshow": {
     "slide_type": "slide"
    }
   },
   "source": [
    "## file di riferimento\n",
    "\n",
    "### fisica delle alte energie, sperimentale\n",
    "\n",
    "#### collegamenti fra gli ID degli articoli\n",
    "\n",
    "http://snap.stanford.edu/data/cit-HepPh.txt.gz\n",
    "\n",
    "#### data di pubblicazione degli articoli\n",
    "\n",
    "http://snap.stanford.edu/data/cit-HepPh-dates.txt.gz\n",
    "\n",
    "### fisica delle alte energie, teorica\n",
    "\n",
    "#### collegamenti fra gli ID degli articoli\n",
    "\n",
    "http://snap.stanford.edu/data/cit-HepTh.txt.gz\n",
    "\n",
    "#### data di pubblicazione degli articoli\n",
    "\n",
    "http://snap.stanford.edu/data/cit-HepTh-dates.txt.gz\n",
    "\n",
    "#### abstract degli articoli con gli autori\n",
    "\n",
    "http://snap.stanford.edu/data/cit-HepTh-abstracts.tar.gz"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {
    "collapsed": false,
    "deletable": true,
    "editable": true,
    "slideshow": {
     "slide_type": "skip"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "/home/enrico/lavoro/DataProgrammingCourse/esercitazione\n"
     ]
    }
   ],
   "source": [

    "%cd esercitazione"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {
    "collapsed": false,
    "slideshow": {
     "slide_type": "skip"
    }
   },
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'/home/enrico/lavoro/DataProgrammingCourse/esercitazione'"
      ]
     },
     "execution_count": 2,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [






    "import os\n",


    "os.getcwd()"

   ]
  },

  {
   "cell_type": "markdown",
   "metadata": {
    "slideshow": {
     "slide_type": "slide"
    }
   },
   "source": [
    "vediamo scaricare ed estrarre i file con python3, usando solo le librerie di base"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {
    "collapsed": true,
    "slideshow": {
     "slide_type": "fragment"
    }
   },
   "outputs": [],
   "source": [
    "from urllib.request import urlretrieve\n",
    "url = \"http://snap.stanford.edu/data/\"\n",
    "filename = \"cit-HepPh.txt.gz\"\n",
    "local_filename, headers = urlretrieve(url+filename, filename)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {
    "collapsed": false,
    "slideshow": {
     "slide_type": "fragment"
    }
   },
   "outputs": [],
   "source": [
    "import gzip\n",
    "with gzip.open('cit-HepPh.txt.gz', 'rb') as source:\n",
    "    with open('cit-HepPh_python.txt', 'wb') as destination:\n",
    "        destination.write(source.read())"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
    "slideshow": {
     "slide_type": "fragment"
    }
   },
   "source": [
    "in generale posso estrarre gli archivi in modo più facile, ma per qualche motivo a me oscuro il formato \".gz\" puro non sembra essere supportato direttamente."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": false
   },
   "outputs": [],
   "source": [
    "from shutil import unpack_archive\n",
    "unpack_archive(filename)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {
    "slideshow": {
     "slide_type": "slide"
    }
   },
   "source": [
    "dalla linea di comando posso usare i comandi wget ed gunzip"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {
    "collapsed": false,
    "slideshow": {
     "slide_type": "fragment"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "--2017-03-17 09:48:12--  http://snap.stanford.edu/data/cit-HepPh.txt.gz\n",
      "Resolving snap.stanford.edu (snap.stanford.edu)... 171.64.75.80\n",
      "Connecting to snap.stanford.edu (snap.stanford.edu)|171.64.75.80|:80... connected.\n",
      "HTTP request sent, awaiting response... 200 OK\n",
      "Length: 1664504 (1.6M) [application/x-gzip]\n",
      "Saving to: ‘cit-HepPh.txt.gz’\n",
      "\n",
      "cit-HepPh.txt.gz    100%[=====================>]   1.59M   555KB/s   in 2.9s   \n",
      "\n",
      "2017-03-17 09:48:25 (555 KB/s) - ‘cit-HepPh.txt.gz’ saved [1664504/1664504]\n",
      "\n"
     ]
    }
   ],
   "source": [
    "!wget http://snap.stanford.edu/data/cit-HepPh.txt.gz"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {
    "collapsed": false,
    "deletable": true,
    "editable": true,
    "slideshow": {
     "slide_type": "fragment"
    }
   },
   "outputs": [],
   "source": [
    "!gunzip -k cit-HepPh.txt.gz"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "metadata": {
    "collapsed": false,
    "slideshow": {
     "slide_type": "fragment"
    }
   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "e79f6ef17a4b0a2e94959af6fa88de72  cit-HepPh.txt\n",
      "e79f6ef17a4b0a2e94959af6fa88de72  cit-HepPh_python.txt\n"









     ]
    }
   ],
   "source": [
    "!md5sum cit-HepPh.txt\n",
    "!md5sum cit-HepPh_python.txt"
   ]
  },
  {
   "cell_type": "markdown",

   "metadata": {

    "slideshow": {
     "slide_type": "slide"
    }
   },



















   "source": [


    "Per chi volesse scaricare il file degli abstract, non essendo in formato gz, è necessario usare il comando `tar` invece di `gunzip`."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true,
    "deletable": true,
    "editable": true,
    "slideshow": {
     "slide_type": "-"
    }
   },
   "outputs": [],
   "source": [
    "!wget http://snap.stanford.edu/data/cit-HepTh-abstracts.tar.gz\n",
    "# questo comando creerà diverse cartelle con dentro i singoli file degli abstract\n",
    "!tar -xzf cit-HepTh-abstracts.tar.gz"

Changes to Esercitazione finale.slides.html. 

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<p>Per i più audaci: esiste la rete di citazioni dei paper teorici</p>
<h2 id="http://snap.stanford.edu/data/cit-HepTh.html"><a href="http://snap.stanford.edu/data/cit-HepTh.html">http://snap.stanford.edu/data/cit-HepTh.html</a><a class="anchor-link" href="#http://snap.stanford.edu/data/cit-HepTh.html">&#182;</a></h2><p>che contiene anche i metadati sugli articoli, inclusi i nomi degli autori.</p>
<p>Provate a fare il parsing del file degli autori ed estrarre il numero di autori per paper, correlandolo con il successo del paper in questione!</p>

</div>
</div>
</div></section></section><section><section>
























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<div class=" highlight hl-ipython3"><pre><span></span><span class="o">%</span><span class="k">mkdir</span> esercitazione
<span class="o">%</span><span class="k">cd</span> esercitazione



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<pre>/home/enrico/lavoro/DataProgrammingCourse/esercitazione
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<div class=" highlight hl-ipython3"><pre><span></span><span class="o">!</span>wget http://snap.stanford.edu/data/cit-HepPh.txt.gz
<span class="o">!</span>gunzip -k cit-HepPh.txt.gz

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<pre>--2017-03-16 15:45:34--  http://snap.stanford.edu/data/cit-HepPh.txt.gz
Resolving snap.stanford.edu (snap.stanford.edu)... 171.64.75.80
Connecting to snap.stanford.edu (snap.stanford.edu)|171.64.75.80|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 1664504 (1.6M) [application/x-gzip]
Saving to: ‘cit-HepPh.txt.gz.1’

cit-HepPh.txt.gz.1  100%[=====================&gt;]   1.59M   805KB/s   in 2.0s   

2017-03-16 15:45:47 (805 KB/s) - ‘cit-HepPh.txt.gz.1’ saved [1664504/1664504]

</pre>
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<div class=" highlight hl-ipython3"><pre><span></span><span class="o">!</span>wget http://snap.stanford.edu/data/cit-HepPh-dates.txt.gz
<span class="o">!</span>gunzip -k cit-HepPh-dates.txt.gz
</pre></div>

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<pre>--2017-03-16 15:45:48--  http://snap.stanford.edu/data/cit-HepPh-dates.txt.gz
Resolving snap.stanford.edu (snap.stanford.edu)... 171.64.75.80
Connecting to snap.stanford.edu (snap.stanford.edu)|171.64.75.80|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 96569 (94K) [application/x-gzip]
Saving to: ‘cit-HepPh-dates.txt.gz.1’

cit-HepPh-dates.txt 100%[=====================&gt;]  94.31K   174KB/s   in 0.5s   

2017-03-16 15:45:49 (174 KB/s) - ‘cit-HepPh-dates.txt.gz.1’ saved [96569/96569]

</pre>
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<div class=" highlight hl-ipython3"><pre><span></span><span class="o">!</span>wget http://snap.stanford.edu/data/cit-HepTh-dates.txt.gz
<span class="o">!</span>gunzip -k cit-HepTh-dates.txt.gz
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<pre>--2017-03-16 15:45:50--  http://snap.stanford.edu/data/cit-HepTh-dates.txt.gz
Resolving snap.stanford.edu (snap.stanford.edu)... 171.64.75.80
Connecting to snap.stanford.edu (snap.stanford.edu)|171.64.75.80|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 96569 (94K) [application/x-gzip]
Saving to: ‘cit-HepTh-dates.txt.gz’

cit-HepTh-dates.txt 100%[=====================&gt;]  94.31K   175KB/s   in 0.5s   

2017-03-16 15:45:51 (175 KB/s) - ‘cit-HepTh-dates.txt.gz’ saved [96569/96569]

</pre>
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<div class="cell border-box-sizing code_cell rendered">
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<div class="prompt input_prompt">In&nbsp;[45]:</div>
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    <div class="input_area">
<div class=" highlight hl-ipython3"><pre><span></span><span class="o">!</span>wget http://snap.stanford.edu/data/cit-HepTh.txt.gz
<span class="o">!</span>gunzip -k cit-HepTh.txt.gz
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<pre>--2017-03-16 15:45:53--  http://snap.stanford.edu/data/cit-HepTh.txt.gz
Resolving snap.stanford.edu (snap.stanford.edu)... 171.64.75.80
Connecting to snap.stanford.edu (snap.stanford.edu)|171.64.75.80|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 1317497 (1.3M) [application/x-gzip]
Saving to: ‘cit-HepTh.txt.gz’

cit-HepTh.txt.gz    100%[=====================&gt;]   1.26M   709KB/s   in 1.8s   

2017-03-16 15:45:55 (709 KB/s) - ‘cit-HepTh.txt.gz’ saved [1317497/1317497]

</pre>
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<div class=" highlight hl-ipython3"><pre><span></span><span class="o">!</span>wget http://snap.stanford.edu/data/cit-HepTh-abstracts.tar.gz
<span class="c1"># questo comando creerà diverse cartelle con dentro i singoli file degli abstract</span>








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<p>Per i più audaci: esiste la rete di citazioni dei paper teorici</p>
<h2 id="http://snap.stanford.edu/data/cit-HepTh.html"><a href="http://snap.stanford.edu/data/cit-HepTh.html">http://snap.stanford.edu/data/cit-HepTh.html</a><a class="anchor-link" href="#http://snap.stanford.edu/data/cit-HepTh.html">&#182;</a></h2><p>che contiene anche i metadati sugli articoli, inclusi i nomi degli autori.</p>
<p>Provate a fare il parsing del file degli autori ed estrarre il numero di autori per paper, correlandolo con il successo del paper in questione!</p>

</div>
</div>
</div></section></section><section><section>
<div class="cell border-box-sizing text_cell rendered">
<div class="prompt input_prompt">
</div>
<div class="inner_cell">
<div class="text_cell_render border-box-sizing rendered_html">
<h2 id="file-di-riferimento">file di riferimento<a class="anchor-link" href="#file-di-riferimento">&#182;</a></h2><h3 id="fisica-delle-alte-energie,-sperimentale">fisica delle alte energie, sperimentale<a class="anchor-link" href="#fisica-delle-alte-energie,-sperimentale">&#182;</a></h3><h4 id="collegamenti-fra-gli-ID-degli-articoli">collegamenti fra gli ID degli articoli<a class="anchor-link" href="#collegamenti-fra-gli-ID-degli-articoli">&#182;</a></h4><p><a href="http://snap.stanford.edu/data/cit-HepPh.txt.gz">http://snap.stanford.edu/data/cit-HepPh.txt.gz</a></p>
<h4 id="data-di-pubblicazione-degli-articoli">data di pubblicazione degli articoli<a class="anchor-link" href="#data-di-pubblicazione-degli-articoli">&#182;</a></h4><p><a href="http://snap.stanford.edu/data/cit-HepPh-dates.txt.gz">http://snap.stanford.edu/data/cit-HepPh-dates.txt.gz</a></p>
<h3 id="fisica-delle-alte-energie,-teorica">fisica delle alte energie, teorica<a class="anchor-link" href="#fisica-delle-alte-energie,-teorica">&#182;</a></h3><h4 id="collegamenti-fra-gli-ID-degli-articoli">collegamenti fra gli ID degli articoli<a class="anchor-link" href="#collegamenti-fra-gli-ID-degli-articoli">&#182;</a></h4><p><a href="http://snap.stanford.edu/data/cit-HepTh.txt.gz">http://snap.stanford.edu/data/cit-HepTh.txt.gz</a></p>
<h4 id="data-di-pubblicazione-degli-articoli">data di pubblicazione degli articoli<a class="anchor-link" href="#data-di-pubblicazione-degli-articoli">&#182;</a></h4><p><a href="http://snap.stanford.edu/data/cit-HepTh-dates.txt.gz">http://snap.stanford.edu/data/cit-HepTh-dates.txt.gz</a></p>
<h4 id="abstract-degli-articoli-con-gli-autori">abstract degli articoli con gli autori<a class="anchor-link" href="#abstract-degli-articoli-con-gli-autori">&#182;</a></h4><p><a href="http://snap.stanford.edu/data/cit-HepTh-abstracts.tar.gz">http://snap.stanford.edu/data/cit-HepTh-abstracts.tar.gz</a></p>

</div>
</div>
</div></section></section><section><section>
<div class="cell border-box-sizing text_cell rendered">
<div class="prompt input_prompt">
</div>
<div class="inner_cell">
<div class="text_cell_render border-box-sizing rendered_html">
<p>vediamo scaricare ed estrarre i file con python3, usando solo le librerie di base</p>

</div>
</div>
</div><div class="fragment">
<div class="cell border-box-sizing code_cell rendered">
<div class="input">
<div class="prompt input_prompt">In&nbsp;[3]:</div>
<div class="inner_cell">
    <div class="input_area">
<div class=" highlight hl-ipython3"><pre><span></span><span class="kn">from</span> <span class="nn">urllib.request</span> <span class="k">import</span> <span class="n">urlretrieve</span>
<span class="n">url</span> <span class="o">=</span> <span class="s2">&quot;http://snap.stanford.edu/data/&quot;</span>
<span class="n">filename</span> <span class="o">=</span> <span class="s2">&quot;cit-HepPh.txt.gz&quot;</span>
<span class="n">local_filename</span><span class="p">,</span> <span class="n">headers</span> <span class="o">=</span> <span class="n">urlretrieve</span><span class="p">(</span><span class="n">url</span><span class="o">+</span><span class="n">filename</span><span class="p">,</span> <span class="n">filename</span><span class="p">)</span>
</pre></div>

</div>
</div>
</div>

</div></div><div class="fragment">
<div class="cell border-box-sizing code_cell rendered">
<div class="input">
<div class="prompt input_prompt">In&nbsp;[9]:</div>
<div class="inner_cell">
    <div class="input_area">
<div class=" highlight hl-ipython3"><pre><span></span><span class="kn">import</span> <span class="nn">gzip</span>

<span class="k">with</span> <span class="n">gzip</span><span class="o">.</span><span class="n">open</span><span class="p">(</span><span class="s1">&#39;cit-HepPh.txt.gz&#39;</span><span class="p">,</span> <span class="s1">&#39;rb&#39;</span><span class="p">)</span> <span class="k">as</span> <span class="n">source</span><span class="p">:</span>
    <span class="k">with</span> <span class="nb">open</span><span class="p">(</span><span class="s1">&#39;cit-HepPh_python.txt&#39;</span><span class="p">,</span> <span class="s1">&#39;wb&#39;</span><span class="p">)</span> <span class="k">as</span> <span class="n">destination</span><span class="p">:</span>
        <span class="n">destination</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="n">source</span><span class="o">.</span><span class="n">read</span><span class="p">())</span>
</pre></div>

</div>
</div>
</div>

</div></div><div class="fragment">
<div class="cell border-box-sizing text_cell rendered">



<div class="prompt input_prompt">




</div>

<div class="inner_cell">
<div class="text_cell_render border-box-sizing rendered_html">
<p>in generale posso estrarre gli archivi in modo più facile, ma per qualche motivo a me oscuro il formato ".gz" puro non sembra essere supportato direttamente.</p>

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</div>


</div>
<div class="cell border-box-sizing code_cell rendered">
<div class="input">
<div class="prompt input_prompt">In&nbsp;[&nbsp;]:</div>
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    <div class="input_area">
<div class=" highlight hl-ipython3"><pre><span></span><span class="kn">from</span> <span class="nn">shutil</span> <span class="k">import</span> <span class="n">unpack_archive</span>

<span class="n">unpack_archive</span><span class="p">(</span><span class="n">filename</span><span class="p">)</span>
</pre></div>

</div>
</div>
</div>

</div></div></section></section><section><section>
<div class="cell border-box-sizing text_cell rendered">



<div class="prompt input_prompt">














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<p>dalla linea di comando posso usare i comandi wget ed gunzip</p>

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<div class=" highlight hl-ipython3"><pre><span></span><span class="o">!</span>wget http://snap.stanford.edu/data/cit-HepPh.txt.gz

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<pre>--2017-03-17 09:48:12--  http://snap.stanford.edu/data/cit-HepPh.txt.gz
Resolving snap.stanford.edu (snap.stanford.edu)... 171.64.75.80
Connecting to snap.stanford.edu (snap.stanford.edu)|171.64.75.80|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 1664504 (1.6M) [application/x-gzip]
Saving to: ‘cit-HepPh.txt.gz’

cit-HepPh.txt.gz    100%[=====================&gt;]   1.59M   555KB/s   in 2.9s   

2017-03-17 09:48:25 (555 KB/s) - ‘cit-HepPh.txt.gz’ saved [1664504/1664504]

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<div class=" highlight hl-ipython3"><pre><span></span><span class="o">!</span>gunzip -k cit-HepPh.txt.gz
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<div class=" highlight hl-ipython3"><pre><span></span><span class="o">!</span>md5sum cit-HepPh.txt
<span class="o">!</span>md5sum cit-HepPh_python.txt
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<pre>e79f6ef17a4b0a2e94959af6fa88de72  cit-HepPh.txt
e79f6ef17a4b0a2e94959af6fa88de72  cit-HepPh_python.txt









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<p>Per chi volesse scaricare il file degli abstract, non essendo in formato gz, è necessario usare il comando <code>tar</code> invece di <code>gunzip</code>.</p>


















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<div class=" highlight hl-ipython3"><pre><span></span><span class="o">!</span>wget http://snap.stanford.edu/data/cit-HepTh-abstracts.tar.gz
<span class="c1"># questo comando creerà diverse cartelle con dentro i singoli file degli abstract</span>

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