Automatic speaker verification systems are increasingly used as the primary means to authenticate costumers. Recently, it has been proposed to train speaker verification systems using end-to-end deep neural models. In this paper, we show that such systems are vulnerable to adversarial example attacks. Adversarial examples are generated by adding a peculiar noise to original speaker examples, in...

The Multi-Compartment Vehicle Routing Problem (MC-VRP) consists of designing transportation routes to satisfy the demands of a set of costumers for several products that because of incompatibility constraints must be loaded on independent vehicle compartments. Despite its wide practical applicability the MC-VRP has not received much attention in the literature, and the few existing methods assu...

The purpose of this paper is to provide a method to identify customer (sustainability) demands, map these via price equivalents and use the equivalents for green logistics target costing. We use the methodology of Expert Survey and Choice Based Conjoint Analysis to study purchase decisions and determine customers’ price readiness for sustainable logistics services. The results are inter alia th...

We consider a pool type electricity market in which generators bid prices in a sealed bid form and are dispatched by an independent system operator (ISO). In our model, demand is inelastic and the ISO allocates production to minimize the system costs while considering the transmission constraints. In a departure from received literature, the model incorporates explicit description of the networ...

Despite the increasing popularity of online food delivery services, extant studies have not looked at factors that contribute to customers’ willingness repurchase and recommend products by local micro small businesses other app users. Meanwhile, topic is essential given from face direct competition with well-known large corporations on digital platforms. Therefore, this study aims examine role ...

The overall cost of companies dealing with the distribution tasks is considerably affected by the way that distributing vehicles are procured. In this paper, a more practical version of capacitated vehicle routing problem (CVRP) in which the decision of purchase or hire of vehicles is simultaneously considered is investigated. In CVRP model capacitated vehicles start from a single depot simulta...

Censorship circumvention is often characterized as an arms race between a nation-state censor and the developers of censorship resistance systems. Decoy routing systems offer a solution to censorship resistance that has the potential to tilt this arms race in the favour of the censorship resistor. Decoy routing uses real connections to unblocked, overt sites to deliver censored content to users...

Automatic dialogue systems used in call-centers, for instance, should be able to determine in a critical phase of the dialogue indicated by the costumers vocal expression of anger/irritation when it is better to pass over to a human operator. At a rst glance, this seems not to be a complicated task: It is reported in the literature that emotions can be told apart quite reliably on the basis of ...