learning.ipynb

     "execution_count": 56,
     "metadata": {},
     "output_type": "execute_result"
    },
    {
     "data": {
      "image/png": "iVBORw0KGgoAAAANSUhEUgAAAP8AAAD8CAYAAAC4nHJkAAAABHNCSVQICAgIfAhkiAAAAAlwSFlz\nAAALEgAACxIB0t1+/AAADQNJREFUeJzt3W+MVfWdx/HPZylNjPQBWLHEgnQb3bgaAzoaE3AzamxY\nbYKN1NQHGzbZMH2AZps0ZA1PypMmjemfrU9IpikpJtSWhFbRGBeDGylRGwejBYpQICzMgkAzJgUT\n0yDfPphDO8W5v3u5/84dv+9XQube8z1/vrnhM+ecOefcnyNCAPL5h7obAFAPwg8kRfiBpAg/kBTh\nB5Ii/EBShB9IivADSRF+IKnP9HNjtrmdEOixiHAr83W057e9wvZB24dtP9nJugD0l9u9t9/2LEmH\nJD0gaVzSW5Iei4jfF5Zhzw/0WD/2/HdJOhwRRyPiz5J+IWllB+sD0EedhP96SSemvB+vpv0d2yO2\nx2yPdbAtAF3WyR/8pju0+MRhfUSMShqVOOwHBkkne/5xSQunvP+ipJOdtQOgXzoJ/1uSbrT9Jduf\nlfQNSdu70xaAXmv7sD8iLth+XNL/SJolaVNE7O9aZwB6qu1LfW1tjHN+oOf6cpMPgJmL8ANJEX4g\nKcIPJEX4gaQIP5AU4QeSIvxAUoQfSIrwA0kRfiApwg8kRfiBpAg/kBThB5Ii/EBShB9IivADSRF+\nICnCDyRF+IGkCD+QFOEHkiL8QFKEH0iK8ANJEX4gKcIPJEX4gaTaHqJbkmwfk3RO0seSLkTEUDea\nAtB7HYW/cm9E/LEL6wHQRxz2A0l1Gv6QtMP2Htsj3WgIQH90eti/LCJO2p4v6RXb70XErqkzVL8U\n+MUADBhHRHdWZG+QdD4ivl+YpzsbA9BQRLiV+do+7Ld9te3PXXot6SuS9rW7PgD91clh/3WSfm37\n0np+HhEvd6UrAD3XtcP+ljbGYT/Qcz0/7AcwsxF+ICnCDyRF+IGkCD+QFOEHkurGU30prFq1qmFt\nzZo1xWVPnjxZrH/00UfF+pYtW4r1999/v2Ht8OHDxWWRF3t+ICnCDyRF+IGkCD+QFOEHkiL8QFKE\nH0iKR3pbdPTo0Ya1xYsX96+RaZw7d65hbf/+/X3sZLCMj483rD311FPFZcfGxrrdTt/wSC+AIsIP\nJEX4gaQIP5AU4QeSIvxAUoQfSIrn+VtUemb/tttuKy574MCBYv3mm28u1m+//fZifXh4uGHt7rvv\nLi574sSJYn3hwoXFeicuXLhQrJ89e7ZYX7BgQdvbPn78eLE+k6/zt4o9P5AU4QeSIvxAUoQfSIrw\nA0kRfiApwg8k1fR5ftubJH1V0pmIuLWaNk/SLyUtlnRM0qMR8UHTjc3g5/kH2dy5cxvWlixZUlx2\nz549xfqdd97ZVk+taDZewaFDh4r1ZvdPzJs3r2Ft7dq1xWU3btxYrA+ybj7P/zNJKy6b9qSknRFx\no6Sd1XsAM0jT8EfELkkTl01eKWlz9XqzpIe73BeAHmv3nP+6iDglSdXP+d1rCUA/9PzeftsjkkZ6\nvR0AV6bdPf9p2wskqfp5ptGMETEaEUMRMdTmtgD0QLvh3y5pdfV6taTnu9MOgH5pGn7bz0p6Q9I/\n2R63/R+SvifpAdt/kPRA9R7ADML39mNgPfLII8X61q1bi/V9+/Y1rN17773FZScmLr/ANXPwvf0A\nigg/kBThB5Ii/EBShB9IivADSXGpD7WZP7/8SMjevXs7Wn7VqlUNa9u2bSsuO5NxqQ9AEeEHkiL8\nQFKEH0iK8ANJEX4gKcIPJMUQ3ahNs6/Pvvbaa4v1Dz4of1v8wYMHr7inTNjzA0kRfiApwg8kRfiB\npAg/kBThB5Ii/EBSPM+Pnlq2bFnD2quvvlpcdvbs2cX68PBwsb5r165i/dOK5/kBFBF+ICnCDyRF\n+IGkCD+QFOEHkiL8QFJNn+e3vUnSVyWdiYhbq2kbJK2RdLaabX1EvNSrJjFzPfjggw1rza7j79y5\ns1h/44032uoJk1rZ8/9M0opppv8oIpZU/wg+MMM0DX9E7JI00YdeAPRRJ+f8j9v+ne1Ntud2rSMA\nfdFu+DdK+rKkJZJOSfpBoxltj9gesz3W5rYA9EBb4Y+I0xHxcURclPQTSXcV5h2NiKGIGGq3SQDd\n11b4bS+Y8vZrkvZ1px0A/dLKpb5nJQ1L+rztcUnfkTRse4mkkHRM0jd72COAHuB5fnTkqquuKtZ3\n797dsHbLLbcUl73vvvuK9ddff71Yz4rn+QEUEX4gKcIPJEX4gaQIP5AU4QeSYohudGTdunXF+tKl\nSxvWXn755eKyXMrrLfb8QFKEH0iK8ANJEX4gKcIPJEX4gaQIP5AUj/Si6KGHHirWn3vuuWL9ww8/\nbFhbsWK6L4X+mzfffLNYx/R4pBdAEeEHkiL8QFKEH0iK8ANJEX4gKcIPJMXz/Mldc801xfrTTz9d\nrM+aNatYf+mlxgM4cx2/Xuz5gaQIP5AU4QeSIvxAUoQfSIrwA0kRfiCpps/z214o6RlJX5B0UdJo\nRPzY9jxJv5S0WNIxSY9GxAdN1sXz/H3W7Dp8s2vtd9xxR7F+5MiRYr30zH6zZdGebj7Pf0HStyPi\nZkl3S1pr+58lPSlpZ0TcKGln9R7ADNE0/BFxKiLerl6fk3RA0vWSVkraXM22WdLDvWoSQPdd0Tm/\n7cWSlkr6raTrIuKUNPkLQtL8bjcHoHdavrff9hxJ2yR9KyL+ZLd0WiHbI5JG2msPQK+0tOe3PVuT\nwd8SEb+qJp+2vaCqL5B0ZrplI2I0IoYiYqgbDQPojqbh9+Qu/qeSDkTED6eUtktaXb1eLen57rcH\noFdaudS3XNJvJO3V5KU+SVqvyfP+rZIWSTou6esRMdFkXVzq67ObbrqpWH/vvfc6Wv/KlSuL9Rde\neKGj9ePKtXqpr+k5f0TsltRoZfdfSVMABgd3+AFJEX4gKcIPJEX4gaQIP5AU4QeS4qu7PwVuuOGG\nhrUdO3Z0tO5169YV6y+++GJH60d92PMDSRF+ICnCDyRF+IGkCD+QFOEHkiL8QFJc5/8UGBlp/C1p\nixYt6mjdr732WrHe7PsgMLjY8wNJEX4gKcIPJEX4gaQIP5AU4QeSIvxAUlznnwGWL19erD/xxBN9\n6gSfJuz5gaQIP5AU4QeSIvxAUoQfSIrwA0kRfiCpptf5bS+U9IykL0i6KGk0In5se4OkNZLOVrOu\nj4iXetVoZvfcc0+xPmfOnLbXfeTIkWL9/Pnzba8bg62Vm3wuSPp2RLxt+3OS9th+par9KCK+37v2\nAPRK0/BHxClJp6rX52wfkHR9rxsD0FtXdM5ve7GkpZJ+W0163PbvbG+yPbfBMiO2x2yPddQpgK5q\nOfy250jaJulbEfEnSRslfVnSEk0eGfxguuUiYjQihiJiqAv9AuiSlsJve7Ymg78lIn4lSRFxOiI+\njoiLkn4i6a7etQmg25qG37Yl/VTSgYj44ZTpC6bM9jVJ+7rfHoBeaeWv/csk/Zukvbbfqaatl/SY\n7SWSQtIxSd/sSYfoyLvvvlus33///cX6xMREN9vBAGnlr/27JXmaEtf0gRmMO/yApAg/kBThB5Ii\n/EBShB9IivADSbmfQyzbZjxnoMciYrpL85/Anh9IivADSRF+ICnCDyRF+IGkCD+QFOEHkur3EN1/\nlPR/U95/vpo2iAa1t0HtS6K3dnWztxtanbGvN/l8YuP22KB+t9+g9jaofUn01q66euOwH0iK8ANJ\n1R3+0Zq3XzKovQ1qXxK9tauW3mo95wdQn7r3/ABqUkv4ba+wfdD2YdtP1tFDI7aP2d5r+526hxir\nhkE7Y3vflGnzbL9i+w/Vz2mHSauptw22/7/67N6x/WBNvS20/b+2D9jeb/s/q+m1fnaFvmr53Pp+\n2G97lqRDkh6QNC7pLUmPRcTv+9pIA7aPSRqKiNqvCdv+F0nnJT0TEbdW056SNBER36t+cc6NiP8a\nkN42SDpf98jN1YAyC6aOLC3pYUn/rho/u0Jfj6qGz62OPf9dkg5HxNGI+LOkX0haWUMfAy8idkm6\nfNSMlZI2V683a/I/T9816G0gRMSpiHi7en1O0qWRpWv97Ap91aKO8F8v6cSU9+MarCG/Q9IO23ts\nj9TdzDSuq4ZNvzR8+vya+7lc05Gb++mykaUH5rNrZ8Trbqsj/NN9xdAgXXJYFhG3S/pXSWurw1u0\npqWRm/tlmpGlB0K7I153Wx3hH5e0cMr7L0o6WUMf04qIk9XPM5J+rcEbffj0pUFSq59nau7nrwZp\n5ObpRpbWAHx2gzTidR3hf0vSjba/ZPuzkr4haXsNfXyC7aurP8TI9tWSvqLBG314u6TV1evVkp6v\nsZe/MygjNzcaWVo1f3aDNuJ1LTf5VJcy/lvSLEmbIuK7fW9iGrb/UZN7e2nyicef19mb7WclDWvy\nqa/Tkr4j6TlJWyUtknRc0tcjou9/eGvQ27AmD13/OnLzpXPsPve2XNJvJO2VdLGavF6T59e1fXaF\nvh5TDZ8bd/gBSXGHH5AU4QeSIvxAUoQfSIrwA0kRfiApwg8kRfiBpP4CIJjqosJxHysAAAAASUVO\nRK5CYII=\n",
      "text/plain": [
       "<matplotlib.figure.Figure at 0x7f72c5683dd8>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "%matplotlib inline\n",
    "\n",
    "print(\"Actual class of test image:\", test_lbl[0])\n",
    "plt.imshow(test_img[0].reshape((28,28)))"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "### k-Nearest Neighbors\n",
    "\n",
    "We will now try to classify a random image from the dataset using the kNN classifier."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 57,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "5\n"
     ]
    }
   ],
   "source": [
    "# takes ~20 Secs. to execute this\n",
    "kNN = NearestNeighborLearner(MNIST_DataSet, k=3)\n",
    "print(kNN(test_img[211]))"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "To make sure that the output we got is correct, let's plot that image along with its label."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 58,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Actual class of test image: 5\n"
     ]
    },
    {
     "data": {
      "text/plain": [
       "<matplotlib.image.AxesImage at 0x7f72c8665cf8>"
      ]
     },
     "execution_count": 58,
     "metadata": {},
     "output_type": "execute_result"
    },
    {
     "data": {
      "image/png": "iVBORw0KGgoAAAANSUhEUgAAAP8AAAD8CAYAAAC4nHJkAAAABHNCSVQICAgIfAhkiAAAAAlwSFlz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\nCD8QFOEHgiL8QFCEHwiK8ANBEX4gqP8B1flLsMvfVy4AAAAASUVORK5CYII=\n",
      "text/plain": [
       "<matplotlib.figure.Figure at 0x7f72c55f74e0>"
      ]
     },
     "metadata": {},
     "output_type": "display_data"
    }
   ],
   "source": [
    "%matplotlib inline\n",
    "\n",
    "print(\"Actual class of test image:\", test_lbl[211])\n",
    "plt.imshow(test_img[211].reshape((28,28)))"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Hurray! We've got it correct. Don't worry if our algorithm predicted a wrong class. With this techinique we have only ~97% accuracy on this dataset."
   ]
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
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