Transaction frauds impose serious threats onto e-commerce. We present CLUE, a novel deep-learning-based transaction fraud detection system we design and deploy at JD.com, one of the largest ecommerce platforms in China with over 220 million active users. CLUE captures detailed information on users’ click actions using neural-network based embedding, and models sequences of such clicks using the...

We analyze recycling decisions for bioplastics using a natural field experiment. Bioplastics have environmental benefits – such as reduced energy use in production and enhanced biodegredation compared to conventional plastics. Recycling that are not consistent with government guidelines, however, may cause rebound effect. For instance when biobased plastics contaminate organic waste streams, or...

”Semantic gap” is an open challenging problem in content-based image retrieval. It reflects the discrepancy between low-level imagery features used by the retrieval algorithm and high-level concepts required by system users. This paper introduces a novel image retrieval scheme, CLUster-based rEtrieval of images by unsupervised learning (CLUE), to tackle the semantic gap problem. CLUE is built o...

The aim of this paper is the reconsideration Gadamer?s hermeneutical-ontological aesthetics, through analysis concepts play, truth and identity. After a brief introduction situating aesthetics in relation to subjective positivist tradition, it will be respectively discussed understanding play as clue ontological explanation art Truth method, self-relevatory addition that reaffirmation concept m...

The task of Word Sense Disambiguation (WSD) incorporates in its definition the role of ‘context’. We present our work on the development of a tool which allows for automatic acquisition and ranking of ‘context clues’ for WSD. These clue words are extracted from the contexts of words appearing in a large monolingual corpus. These mined collection of contextual clues form a discrimination net in ...

The renin-angiotensin system (RAS) has been demonstrated to play a critical role in the initiation and progression of atherosclerosis, thereby contributing to development of cardiovascular diseases. Angiotensin II (Ang II), a major substrate in RAS, stimulates atherosclerosis through various deleterious effects such as endothelial dysfunction, cellular proliferation and inflammation. Recently, ...