Two experiments examine the process by which free gift promotions serve as a source of information about the underlying value of the product offered as a free gift. The value-discounting hypothesis argues that by virtue of being offered as a free gift, products will be valued less as evinced by lower purchase intentions and a lower price that consumers are willing to pay for them. Conditions th...

Recently, Herranz presented an identity-based ring signature scheme featuring signer verifiability where a signer can prove that he or she is the real signer by releasing an authorship proof. In this paper we show that this scheme is vulnerable to a key recovery attack in which a user’s secret signing key can be efficiently recovered through the use of two known ring signatures and their corres...

Are simple strokes unique to the artist or designer who renders them? If so, can this idea be used to identify authorship or to classify artistic drawings? Also, could training methods be devised to develop particular styles? To answer these questions, we propose the Stroke Authorship Recognition (SAR) approach, a novel method that distinguishes the authorship of 2D digitized drawings. SAR conv...

In an abstract sense, authorship entails the constrained selection or generation of media and the organization and layout of that media in a larger structure. But authorship is more than just selection and organization; it is a complex construct incorporating concepts of originality, authority, intertextuality, and attribution. In this paper we explore these concepts as they relate to authorshi...

Authorship verification is the task of, given a document and a candidate author, determining whether or not the document was written by the candidate author. Traditional approaches to authorship verification have revolved around a “candidate author vs. everything else” approach. Thus, perhaps the most important aspect of performing authorship verification on a document is the development of an ...