1,720,962 research outputs found
Polarization Imaging for Face Spoofing Detection: Identification of Black Ethnical Group
No full textOn Evaluation of Depth Accuracy in Consumer Depth Sensors
No full textThis paper presents an experimental study of different depth sensors. The aim is to answer the
question, whether these sensors give accurate data for general depth image analysis
LAFAMS: Account management system for Malaysian small legal firms
No full textOne of the vital components of a successful private legal practice is good account management. Legal firms have a unique business process and specific rules on how accounting records should be kept and recorded. At present, there are many software packages for legal account management systems such as the MyCase web-based legal practice management software and the QuickBooks legal accounting software. However, for small- and medium-size legal firms in Malaysia, the software designed for international use might not be suitable. The majority of local law firms are SMEs and most of the time, their account management is done by the lawyers themselves. With limited knowledge of accounting and business management, it is not a surprise that many legal practitioners face difficulties in managing their accounts. LAFAMS (Law Firm Account Management System) was developed to assist legal firms to manage their financial transactions, monitor their performance, record cash inflow and outflow and facilitate the auditing process. The system requires only the basic Windows operating system and is easy to operate. The report produced by LAFAMS should be sufficient for submission to the Bar Council as evidence of proper account-keeping by legal firms
Face anti-spoofing countermeasure: Efficient 2D materials classification using polarization imaging
No full textFace anti-spoofing countermeasure: Efficient 2D materials classification using polarization imaging
No full textSpoofing is an act to impersonate a valid user of
any biometric systems in order to gain access. In a face biometric
system, an imposter might use some fake masks that mimic the
real user face. Existing countermeasures against spoofing adopt
face texture analysis, motion detection and surface reflection
analysis. For the purpose of face anti-spoofing analysis, skin
structure is a key factor in achieving the target of our study. Skin
consists of multiple layers structure which produces multiple
reflections: surface and subsurface reflections. In this paper, we
proposed a measure to discriminate between a genuine face and a
printed paper photo based on physical properties of the materials
which contribute to its distinctive reflection values. In order to
differentiate the reflections, polarized light (light that vibrates in
a single direction) can be used. The Stokes parameters are
applied to generate the Stokes images which are then used to
produce the final image known as Stokes degree of linear
polarization (SDOLP) image. The intensity of the SDOLP image
is investigated statistically which has shown promising results in
the materials classification, between the skin and the paper mask.
Furthermore, comparison between the experimental results from
two skin color groups, black and others show that the SDOLP
data distribution of black skin is similar to the printed paper
photo of the same skin group
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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