{
    "id": "QNT-008",
    "category": "QNT",
    "title": "Walk Forward逐窗驗證",
    "question": "規則在不同年代是否保持效果？",
    "chart": "multi",
    "metric": "樣本外回報（%）",
    "secondary": "基準／成本後回報（%）",
    "x": "交易日／觀察期",
    "y": "樣本外回報（%）",
    "panels": [
        "Walk Forward逐窗驗證",
        "基準／成本後回報（%）",
        "事件明細與資料日期"
    ],
    "filters": [
        "標的／市場",
        "分析區間",
        "基準／參數"
    ],
    "apis": [
        "EOD",
        "USER"
    ],
    "calculation": "每窗只用過往訓練選參數並向前測試，按真正樣本外段串連淨值。",
    "caveat": "需自建回測引擎與執行假設；歷史結果不是未來保證，不以最佳樣本代替保留測試。 用戶設定／持倉或模擬交易不由EODHD提供。",
    "data_class": "用戶資料",
    "complexity": "高",
    "audience": "進階",
    "reach": 8,
    "frequency": 7,
    "decision": 9,
    "clarity": 7,
    "sample_labels": [
        "T−5",
        "T−4",
        "T−3",
        "T−2",
        "T−1",
        "T"
    ],
    "cadence": "每次回測／每週監控",
    "category_name": "量化策略與回測",
    "score": 78.5,
    "requires_user_input": true,
    "requires_extra_plan": false,
    "source_urls": [
        "https://eodhd.com/financial-apis/api-for-historical-data-and-volumes"
    ],
    "rank": 351,
    "stage": "P2",
    "svg_file": "mockups/0351-QNT-008.svg",
    "demo_fingerprint": "d56bc108155c53d2",
    "collection": "catalogue",
    "sample_annotation": {
        "sample": true,
        "as_of": "2026-10-16",
        "notice": "Charts and tables for this report are generated, deterministic synthetic sample observations for educational layout and unit demonstration only. No provider, market data or analysis engine is called, and nothing here is a statement about real securities.",
        "notice_zh": "此報告的圖表與數據為確定性生成的合成示例數據，僅供教育及版面展示；並無連接任何資料供應商或實際分析引擎，不代表任何真實證券的表現。",
        "default_filters": {
            "symbol": "0700.HK",
            "period": "1Y",
            "benchmark": "HSI"
        },
        "filters": {
            "symbol": [
                "0700.HK",
                "0005.HK",
                "AAPL.US",
                "MSFT.US",
                "SPY.US",
                "BTC-USD.CC"
            ],
            "period": [
                "1Y",
                "3Y",
                "5Y"
            ],
            "benchmark": [
                "HSI",
                "SPX",
                "BTC"
            ]
        },
        "library": {
            "version": "2026-10-19",
            "source": "https://chatgpt.com/share/6ad67223-c610-83e8-adb2-33aaf792e584",
            "sample": true
        }
    }
}