{
  "fetched_at": "2026-10-20T09:58:19Z",
  "source_url": "https://www.kaggle.com/competitions/boston-housing-hitotsubashi/data",
  "pages": [
    {
      "name": "data-description",
      "content": "<h2>Target</h2>\n<ul>\nThe medv variable is the target variable.\n</ul>\n<h2>Data fields</h2>\n<ul>\n<p>The Boston data frame has 506 rows and 14 columns.</p>\n\nThis data frame contains the following columns:<br>\n<br>\ncrim: per capita crime rate by town. <br>\nzn: proportion of residential land zoned for lots over 25,000 sq.ft. <br>\nindus: proportion of non-retail business acres per town. <br>\nchas: Charles River dummy variable (= 1 if tract bounds river; 0 otherwise). <br>\nnox: nitrogen oxides concentration (parts per 10 million). <br>\nrm: average number of rooms per dwelling. age: proportion of owner-occupied units built prior to 1940. <br>\ndis: weighted mean of distances to five Boston employment centres. <br>\nrad: index of accessibility to radial highways. tax: full-value property-tax rate per \\$10,000. <br>\nptratio: pupil-teacher ratio by town. <br>\nblack: 1000(Bk - 0.63)^2 where Bk is the proportion of blacks by town. <br>\nlstat: lower status of the population (percent). <br>\nmedv: median value of owner-occupied homes in \\$1000s.<br>\n\n<p>\nAnd submission.csv is a sample for the format acceptable in this competition. </p>\n<p>Source Harrison, D. and Rubinfeld, D.L. (1978) Hedonic prices and the demand for clean air. J. Environ. Economics and Management 5, 81–102.</p>\n<p>\nBelsley D.A., Kuh, E. and Welsch, R.E. (1980) Regression Diagnostics. Identifying Influential Data and Sources of Collinearity. New York: Wiley.</p>\n</ul>",
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    {
      "name": "Description",
      "content": "とりあえずやってみましょう。 いろいろ工夫してみてください。 誤差が小さい人が高順位になります。Leaderboardには、誤差(RMSE)と順位が表示されます。",
      "isPublished": false,
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    },
    {
      "name": "Evaluation",
      "content": "<hr>\n<p>The evaluation metric for this competition is RMSE Score. </p>\n<br>\n<p>The file should contain a header and have the following format:</p>\n<pre>ID,MEDV<br>64,390<br></pre>",
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    {
      "name": "rules",
      "content": "とりあえず、サブミットしてみましょう。\n順位や予測の成績は、気楽に考えましょう。",
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      "hasIsPublished": false,
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}