視覺化分析拍類競技體育競賽之選手表現與策略風格

Abstract

在競技體育的比賽中，雙方選手較量的不只有自己的技術，還必須考量到心理的素質與策略的使用，就像是場戰爭一樣。這些比賽資料隨著每一場的比賽不斷地增加，我們可以透過這些資料歸納分析出一個選手在面對不同對手的戰術與特色。在高水平的比賽當中，教練與選手本身都必須要清楚地了解自己與對手的優劣勢，才能夠針對選手進行適當的訓練，讓選手在比賽中能有更好的表現。 隨著資訊科技的創新與進步，的確存在許多技術是用來分析這些比賽資料。不過，在視覺化分析的領域，去探討如何將選手的特色與比賽的過程呈現給使用者的議題卻相對地乏人問津。再加上現存的比賽系統只有記錄最後的比分而已，並沒有紀錄比賽過程是如何拉鋸、和選手在不同階段時的表現。因此，受到視覺化在其他領域應用的啟發，我們針對拍類競技體育的比賽提出了一套完整的視覺化系統，設計不同層次的呈現來詮釋選手在比賽中的表現。透過我們的系統，可以經由這些圖像去了解選手在比賽不同時期的策略與戰術調整的反應，來更加了解比賽的經過與選手的特色。並且，使用者也可以將多個選手的資料進行比較，利用不同特徵的圖像來差異化和風格化每位選手，來取代現有的文字與記錄。

A competitive sport match is like a war between the two contestants, not only for physical skills but also mental strategies. Since large datasets are generated players every time they compete, we can use a player’s historical performance to derive his or her tactics when facing different situation and opponent. In order to win competitions at worldwide level, coaches and athletes must acquire a clear understanding of an athlete’s strength and weaknesses in skills and tactics during competitions, and this will help the athlete continue to improve and excel at the sport by training through proper way. With the development of computer science and technology, there are some data mining techniques that help sport game analysis. However, as interesting as an athlete’s sport performance is, visualization techniques that helps people find patterns and characteristics on players’ performance is still relatively sparse. In addition, current sport statistics only record final score at game level, and the step by step performance of the player throughout the game remains hidden. Thus, inspired by information visualization techniques, we focused on racket competitive sports and proposed several representations that can help visualize an athlete’s performance in matches, like how the player earns a score. With our visualization system, we can observe all the games played by the athlete to interpret the athlete’s performance, improvement, and tactics adjusting across game-play timeline and be able to compare multiple players’ characteristics.