{
    "doc_type": "invoice",
    "label": "세금계산서",

    "preprocess": {
        "max_slope": 0.03,
        "y_tolerance": 5,
        "x_tolerance": 10,
        "remove_patterns": ["^\\s*$"]
    },

    "keywords": {
        "invoice_num": ["일련번호", "승인번호"],
        "issuer_corp_num": ["공급자", "등록번호"],
        "issuer_name": ["공급자", "상호"],
        "receiver_corp_num": ["공급받는자", "등록번호"],
        "receiver_name": ["공급받는자", "상호"],
        "write_date": ["작성일자", "작성 연월일"],
        "amount_total": ["공급가액", "합계금액"],
        "tax_total": ["세액"],
        "total_amount": ["합계금액", "총합계"]
    },

    "fields": {
        "invoice_num": {
            "output_key": "invoice_num",
            "mode": "regex_scan",
            "pattern": "([0-9]{8}-[0-9]{8})",
            "capture_group": 1
        },
        "write_date": {
            "output_key": "write_date",
            "criteria": [
                { "keyword": "작성일자", "direction": "RIGHT" },
                { "keyword": "작성 연월일", "direction": "RIGHT" }
            ],
            "refine": "date"
        },
        "amount_total": {
            "output_key": "amount_total",
            "criteria": [
                { "keyword": "공급가액", "direction": "RIGHT" },
                { "keyword": "공급가액", "direction": "DOWN" }
            ],
            "refine": "number"
        },
        "tax_total": {
            "output_key": "tax_total",
            "criteria": [
                { "keyword": "세액", "direction": "RIGHT" },
                { "keyword": "세액", "direction": "DOWN" }
            ],
            "refine": "number"
        },
        "total_amount": {
            "output_key": "total_amount",
            "criteria": [
                { "keyword": "합계금액", "direction": "RIGHT" },
                { "keyword": "합계금액", "direction": "DOWN" }
            ],
            "refine": "number"
        },
        "issuer_name": {
            "output_key": "issuer_name",
            "region": {
                "from": "공급자",
                "to": "공급받는자",
                "direction": "DOWN",
                "x_min_anchor": "상호"
            }
        },
        "receiver_name": {
            "output_key": "receiver_name",
            "region": {
                "from": "공급받는자",
                "to": "작성일자",
                "direction": "DOWN",
                "x_min_anchor": "상호"
            }
        }
    },

    "required_fields": ["total_amount"],

    "confidence_weight": {
        "invoice_num": 0.15,
        "write_date": 0.15,
        "amount_total": 0.25,
        "tax_total": 0.2,
        "total_amount": 0.25
    }
}