Problem statement Trichromatic Online Matching (TOM) Given A set of task requesters T Each tE T: location lt, arriving time bt, leaving time et and range radius A set of crowd workers w o Each w E W: location Lw, arriving time bw, leaving time e range radius rw. A set of crowd workplaces p Each p E P: location Lp, arriving time bp, leaving time ep Utility Function: U(t,p, w) The function could be application-relatedProblem Statement ⚫ Trichromatic Online Matching (TOM) ⚫ Given ⚫ A set of task requesters 𝑇 o Each 𝑡 ∈ 𝑇: location 𝒍𝑡 , arriving time 𝑏𝑡 , leaving time 𝑒𝑡 and range radius 𝑟𝑡 . ⚫ A set of crowd workers 𝑊 o Each 𝑤 ∈ 𝑊: location 𝒍𝑤, arriving time 𝑏𝑤, leaving time 𝑒𝑤, range radius 𝑟𝑤. ⚫ A set of crowd workplaces 𝑃 o Each 𝑝 ∈ 𝑃: location 𝒍𝑝, arriving time 𝑏𝑝, leaving time 𝑒𝑝 ⚫ Utility Function:𝑈 𝑡, 𝑝, 𝑤 . o The function could be application-related. 25