“…WSs-related research has mostly focused on developing methods for identifying and suggesting WSs based on user requirements for the last two decades. The majority of previous research on WSs searching and recommendation may be classified as keyword-based [19], [20], [21], [22], [23], [24], quality of services-based [25], [26], [27], [28], [29], semantics-based [30], [31], [32], [33], [34], [35], [36], [37], [38], [39], [40], and network-based [41], [42], [43], [44], [45], [46] studies according to the WSs requirement descriptive models and approaches used for assessing relationship between WSs and users' requirements. In spite of the various studies on WSs retrieval and suggestions, a number of studies [47], [48], [49], [50], [51], [52], [53], [54], [55], [56], [57], [58], [59], [60], [61], [62], [63],…”