default_settings = `
{
"proportion_of_matches": 0.4,
"comparison_columns": [
{
"col_name": "first_name",
"m_probabilities": [ 0.25, 0.75],
"u_probabilities": [ 0.9, 0.1 ],
"gamma_value": 1
},
{
"col_name": "surname",
"m_probabilities": [ 0.2, 0.8],
"u_probabilities": [ 0.8, 0.2],
"gamma_value": 0
}
]
}
`