0.5.0: L3 ver1 Updated.
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database/L3/L3_Features.sqlite
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database/L3/L3_Features.sqlite
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database/L3/README.md
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database/L3/README.md
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## basic、个人基础数据特征
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1. 平均Rating（每局）
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2. 平均KD值（每局）
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3. 平均KAST（每局）
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4. 平均RWS（每局）
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5. 每局爆头击杀数
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6. 爆头率（爆头击杀/总击杀）
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7. 每局首杀次数
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8. 每局首死次数
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9. 首杀率（首杀次数/首遇交火次数）
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10. 首死率（首死次数/首遇交火次数）
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11. 每局2+杀/3+杀/4+杀/5杀次数（多杀）
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12. 连续击杀累计次数（连杀）
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15. **(New) 助攻次数 (assisted_kill)**
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16. **(New) 无伤击杀 (perfect_kill)**
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17. **(New) 复仇击杀 (revenge_kill)**
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18. **(New) AWP击杀数 (awp_kill)**
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19. **(New) 总跳跃次数 (jump_count)**
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---
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## 挖掘能力维度：
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### 1、时间稳定序列特征 STA
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1. 近30局平均Rating（长期Rating）
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2. 胜局平均Rating
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3. 败局平均Rating
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4. Rating波动系数（近10局Rating计算）
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5. 同一天内比赛时长与Rating相关性（每2小时Rating变化率）
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6. 连续比赛局数与表现衰减率（如第5局后vs前4局的KD变化）
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### 2、局内对抗能力特征 BAT
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1. 对位最高Rating对手的KD差（自身击杀-被该对手击杀）
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2. 对位最低Rating对手的KD差（自身击杀-被该对手击杀）
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3. 对位所有对手的胜率（自身击杀>被击杀的对手占比）
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4. 平均对枪成功率（对所有对手的对枪成功率求平均）
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5. 与单个对手的交火次数（相遇频率）
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* ~~A. 对枪反应时间（遇敌到开火平均时长，需录像解析）~~ (Phase 5)
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* B. 近/中/远距对枪占比及各自胜率 (仅 Classic 可行)
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### 3、高压场景表现特征 HPS (High Pressure Scenario)
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1. 1v1/1v2/1v3+残局胜率
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2. 赛点（12-12、12-11等）残局胜率
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3. 人数劣势时的平均存活时间/击杀数（少打多能力）
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4. 队伍连续丢3+局后自身首杀率（压力下突破能力）
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5. 队伍连续赢3+局后自身2+杀率（顺境多杀能力）
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6. 受挫后状态下滑率（被刀/被虐泉后3回合内Rating下降值）
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7. 起势后状态提升率（关键残局/多杀后3回合内Rating上升值）
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8. 翻盘阶段KD提升值（同上场景下，自身KD与平均差值）
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9. 连续丢分抗压性（连续丢4+局时，自身KD与平均差值）
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### 4、手枪局专项特征 PTL (Pistol Round)
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1. 手枪局首杀次数
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2. 手枪局2+杀次数（多杀）
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3. 手枪局连杀次数
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4. 参与的手枪局胜率(round1 round13)
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5. 手枪类武器KD
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6. 手枪局道具使用效率（烟雾/闪光帮助队友击杀数/投掷次数）
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### 5、阵营倾向（T/CT）特征 T/CT
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1. CT方平均Rating
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2. T方平均Rating
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3. CT方首杀率
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4. T方首杀率
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5. CT方守点成功率（负责区域未被突破的回合占比）
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6. T方突破成功率（成功突破敌方首道防线的回合占比）
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7. CT/T方KD差值（CT KD - T KD）
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8. **(New) 下包次数 (planted_bomb)**
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9. **(New) 拆包次数 (defused_bomb)**
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### 6、道具特征 UTIL
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1. 手雷伤害 (`throw_harm`)
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2. 闪光致盲时间 (`flash_time`, `flash_enemy_time`, `flash_team_time`)
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3. 闪光致盲人数 (`flash_enemy`, `flash_team`)
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4. 每局平均道具数量与使用率（烟雾、闪光、燃烧弹、手雷）
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database/L3/schema.sql
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database/L3/schema.sql
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-- L3 Schema: Player Features Data Mart
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-- Based on FeatureRDD.md
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-- Granularity: One row per player (Aggregated Profile)
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-- Note: Some features requiring complex Demo parsing (Phase 5) are omitted or reserved.
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CREATE TABLE IF NOT EXISTS dm_player_features (
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steam_id_64 TEXT PRIMARY KEY,
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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total_matches INTEGER DEFAULT 0,
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-- ==========================================
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-- 0. Basic Features (Avg per match)
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-- ==========================================
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basic_avg_rating REAL,
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basic_avg_kd REAL,
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basic_avg_kast REAL,
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basic_avg_rws REAL,
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basic_avg_headshot_kills REAL,
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basic_headshot_rate REAL, -- Headshot kills / Total kills
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basic_avg_first_kill REAL,
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basic_avg_first_death REAL,
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basic_first_kill_rate REAL, -- FK / (FK + FD) or FK / Opening Duels
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basic_first_death_rate REAL,
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basic_avg_kill_2 REAL,
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basic_avg_kill_3 REAL,
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basic_avg_kill_4 REAL,
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basic_avg_kill_5 REAL,
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basic_avg_assisted_kill REAL,
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basic_avg_perfect_kill REAL,
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basic_avg_revenge_kill REAL,
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basic_avg_awp_kill REAL,
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basic_avg_jump_count REAL,
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-- ==========================================
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-- 1. STA: Stability & Time Series
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-- ==========================================
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sta_last_30_rating REAL,
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sta_win_rating REAL,
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sta_loss_rating REAL,
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sta_rating_volatility REAL, -- StdDev of last 10 ratings
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sta_time_rating_corr REAL, -- Correlation between match duration/time and rating
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sta_fatigue_decay REAL, -- Perf drop in later matches of same day
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-- ==========================================
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-- 2. BAT: Battle / Duel Capabilities
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-- ==========================================
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bat_kd_diff_high_elo REAL,
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bat_kd_diff_low_elo REAL,
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bat_win_rate_vs_all REAL,
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bat_avg_duel_win_rate REAL,
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bat_avg_duel_freq REAL,
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-- Distance based stats (Placeholder for Classic data)
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bat_win_rate_close REAL,
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bat_win_rate_mid REAL,
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bat_win_rate_far REAL,
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-- ==========================================
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-- 3. HPS: High Pressure Scenarios
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-- ==========================================
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hps_clutch_win_rate_1v1 REAL,
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hps_clutch_win_rate_1v2 REAL,
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hps_clutch_win_rate_1v3_plus REAL,
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hps_match_point_win_rate REAL,
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hps_undermanned_survival_time REAL,
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hps_pressure_entry_rate REAL, -- FK rate when team losing streak
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hps_momentum_multikill_rate REAL, -- Multi-kill rate when team winning streak
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hps_tilt_rating_drop REAL, -- Rating drop after getting knifed/BM'd
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hps_clutch_rating_rise REAL, -- Rating rise after clutch
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hps_comeback_kd_diff REAL,
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hps_losing_streak_kd_diff REAL,
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-- ==========================================
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-- 4. PTL: Pistol Round Specialist
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-- ==========================================
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ptl_pistol_kills REAL, -- Avg per pistol round? Or Total? Usually Avg per match or Rate
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ptl_pistol_multikills REAL,
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ptl_pistol_win_rate REAL, -- Personal win rate in pistol rounds
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ptl_pistol_kd REAL,
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ptl_pistol_util_efficiency REAL,
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-- ==========================================
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-- 5. T/CT: Side Preference
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-- ==========================================
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side_rating_ct REAL,
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side_rating_t REAL,
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side_first_kill_rate_ct REAL,
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side_first_kill_rate_t REAL,
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side_hold_success_rate_ct REAL,
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side_entry_success_rate_t REAL,
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side_kd_diff_ct_t REAL, -- CT KD - T KD
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side_planted_bomb_count INTEGER,
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side_defused_bomb_count INTEGER,
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-- ==========================================
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-- 6. UTIL: Utility Usage
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-- ==========================================
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util_avg_nade_dmg REAL,
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util_avg_flash_time REAL,
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util_avg_flash_enemy REAL,
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util_avg_flash_team REAL,
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util_usage_rate REAL
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);
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-- Optional: Detailed per-match feature table for time-series analysis
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CREATE TABLE IF NOT EXISTS fact_match_features (
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match_id TEXT,
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steam_id_64 TEXT,
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-- Snapshots of the 6 dimensions for this specific match
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basic_rating REAL,
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sta_trend_pre_match REAL, -- Rating trend entering this match
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bat_duel_win_rate REAL,
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hps_clutch_success INTEGER,
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ptl_performance_score REAL,
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PRIMARY KEY (match_id, steam_id_64)
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);
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