Novel Functional Technologies for Age-friendly E-commerce Xiaohai Tian 1,2 , Lei Meng 1 , Siyuan Liu 1 , Zhiqi Shen 1 , Eng-Siong Chng 2 , Cyril Leung 1 , Frank Guan 1 , Chunyan Miao 1,2 1 Joint NTU-UBC Research Centre of Excellence in Active Living for the Elderly (LILY), Nanyang Technological University, Singapore 2 School of Computer Science and Engineering, Nanyang Technological University, Singapore Abstract. In this paper, we present an age-friendly E-commerce sys- tem with novel assistive functional technologies, aiming at providing a comfortable online shopping environment for the elderly. Besides incor- porating human factors for the elderly into the design of user interface, we build an age-friendly system by improving the functional usability. First, to improve the searching experience, we design a multimodal prod- uct search function, which accepts image, speech, text and the combi- nation of them as inputs to help the elderly find products easily and accurately. Second, we develop a product reputation function to provide an objective evaluation of products’ quality, which helps the elderly filter out low-quality products while saves their energy in product compari- son. Additionally, to reduce the elderly’s visual burden when browsing the Web, a personalized speech feedback function is designed to pro- vide speech assistant for the elderly. Our system has been testified using real-world E-commerce data, and the result demonstrates its feasibility. Keywords: Age-friendly E-commerce, elderly, usability, multimodal search, personalized speech feedback, product reputation 1 Introduction E-commerce (electronic commerce), a transaction of buying or selling online, has grown over years. These business transactions occur in four business models: business-to-business, business-to-consumer, consumer- to-consumer or consumer-to-business 1 . Online shopping, also named as electronic retail, is a form of E-commerce which allows consumers to di- rectly buy goods or services from a seller over the Internet using a web browser. Because of its convenience, it has been reshaping the attitude and behavior of customers for purchasing products. 1 http://searchcio.techtarget.com/definition/e-commerce