C rooms, recommendation sites, and customer review sections allow consumers to overcome geographic boundaries and to communicate based on mutual interests. However, marketers also have incentives to supply promotional chat or reviews in order to influence the consumers’ evaluation of their products. Moreover, firms can disguise their promotion as consumer recommendations due to the anonymity af...

Observations of carbon-rich circumstellar envelopes were made using the Phoenix spectrograph on the Gemini South telescope to determine the abundance of small carbon chain molecules. Vibration–rotation lines of the ν3 antisymmetric stretch of C3 near 2040 cm−1 (4.902 μm) have been used to determine the column density for four carbon-rich circumstellar envelopes: CRL 865, CRL 1922, CRL 2023 and ...

We present an anomaly-based algorithm for detecting IRC-based botnet meshes. The algorithm combines an IRC mesh detection component with a TCP scan detection heuristic called the TCP work weight. The IRC component produces two tuples, one for determining the IRC mesh based on IP channel names, and a sub-tuple which collects statistics (including the TCP work weight) on individual IRC hosts in c...

As flourishing, productive open source software (OSS) communities mature, they have to introduce a variety of governance mechanisms to manage the participation of their members and to coordinate the launch of new releases. In contrast to other modes of governance of OSS communities, the Debian community introduced new mechanisms of informal administrative control based on a constitution, electe...

D. Cosco, S. Bulotta, D. Paolino and M. Fresta 1 Department of Health Sciences, University “Magna Græcia”of Catanzaro, Campus Universitario “S. Venuta” Building of BioSciences, Viale S. Venuta, I-88100 Germaneto Catanzaro, Italy 2 IRC FSHInterregional Research Center for Food Safety & Health, University “Magna Græcia”of Catanzaro, Campus Universitario “S. Venuta” Building of BioSciences, Viale ...

Much attention has been devoted recently to the underground economy, and in particular to the IRC markets for stolen identities, phishing kits, botnets, and cybercrime related services. It is suggested that sophisticated underground markets show great specialization and maturity. There are complex divisions of labor and service offerings for every need. Stolen credentials are traded in bulk for...

This article describes an improvement to integral resonance damping control (IRC) for reference tracking applications, such as scanning probe microscopy and nanofabrication. It is demonstrated that IRC control introduces a low-frequency pole into the tracking loop that is detrimental for performance. In this work, the location of this pole is found analytically using Cardano’s method then compe...

We report the first VLBI map of the 7 mm v=0 J=1–0 maser line of the 29 SiO isotopic substitution in the long period variable star IRC +10011. We have found that this maser emission is composed of multiple features distributed in an incomplete ring, suggesting that this maser is also amplified tangentially as already proposed in other SiO circumstellar masers. We present also the results for so...

We present an online service with real-time monitoring of Wikipedia pages for companies and detects sentiment with respect to the edits, the companies and editors. It monitors the IRC stream, detects company-related articles using a small hand-built list and performs sentiment analysis using a sentiment-annotated word list. The system generates a report that can be emailed to users.

The shares in a (k, n) Shamir threshold scheme consist of n points on some polynomial of degree at most k − 1. If one or more of the shares are faulty, then the secret may not be reconstructed correctly. Supposing that at most t of the n shares are faulty, we show how a suitably chosen covering design can be used to compute the correct secret. We review known results on coverings of the desired...