Objective Classes for Micro-Facial Expression Recognition

Micro-expressions are brief spontaneous facial expressions that appear on a face when a person conceals an emotion, making them different to normal facial expressions in subtlety and duration. Currently, emotion classes within the CASME II dataset are based on Action Units and self-reports, creating conflicts during machine learning training. We will show that classifying expressions using Action Units, instead of predicted emotion, removes the potential bias of human reporting. The proposed classes are tested using LBP-TOP, HOOF and HOG 3D feature descriptors. The experiments are evaluated on two benchmark FACS coded datasets: CASME II and SAMM. The best result achieves 86.35\% accuracy when classifying the proposed 5 classes on CASME II using HOG 3D, outperforming the result of the state-of-the-art 5-class emotional-based classification in CASME II. Results indicate that classification based on Action Units provides an objective method to improve micro-expression recognition.Comment: 11 pages, 4 figures and 5 tables. This paper will be submitted for journal revie

Hermitian K-theory of the Gaussian 2-integers

In this thesis we the calculate the 2-completed homotopy type of the hermitian K-theory of the ring of Gaussian 2-integers. Motivation and background from number theory, algebra and algebraic geometry are also provided. We give introductions to classical K-theory and hermitian K-theory as well as the Quillen plus-construction. The hermitian K-groups of the Gaussian 2-integers are computed in degrees 0, 1 and 2 using these tools. For the homotopy type we use an étale version of hermitian K-theory, in the spirit of Dwyer-Friedlander, and construct a decomposition of the hermitian K-theory space of the Gaussian 2-integers into a product of spaces whose homotopy types are known. By work of Berrick, Karoubi and Østvær the étale hermitian K-theory of the Gaussian 2-integers is 2-adically equivalent to its ordinary hermitian K-theory

Barnevernets prestisje : En tekstanalytisk studie av «barn i risiko/skadelige omsorgssituasjoner»

Jeg ønsker med denne oppgaven å rette fokus på utvalgte tekster i den barnevernfaglige boken «Barn i risiko/Skadelige omsorgssituasjoner». Jeg vil se på hva tekstene gjør, det vil si at jeg vil se etter hva slags forståelser av barnevernsarbeidet og dets involverte som boken kan være et uttrykk for. Jeg vil derfor se etter hvilke diskurser boken forstås å trekke på, og hvilke den fremmer. Oppgaven er en kvalitativ tekstanalyse. Som teoretisk rammeverk baserer jeg meg på sosialkonstruktivisme med hovedvekt på Peter L. Berger og Thomas Luckmanns redegjørelse. Som metodologisk tilgang til analysen tar jeg i bruk diskurspsykologi. Mitt analysemateriale består av bokens forord/leseveiledning og tre innledende tekster til tre ulike kapitler. Jeg har dessuten valgt ut syv av bokens i alt 22 eksempler/kasusfortellinger. Jeg stilte flere analytiske spørsmål til tekstene som innebar å se etter hva forfatteren forventer av sine lesere, og hvordan forfatteren posisjonerer seg. Jeg lurte også på hvordan barnevernsarbeideren konstrueres i lys av andre aktørgrupper. Jeg var i tillegg interessert i å finne ut hvordan teori ble skrevet frem, og til sist hva som forstås som godt barnevernsarbeid. Analysen viser at godt barnevernsarbeid handler om å se etter mønstre hos brukerne. Jeg fant at brukerne ofte tildeles stereotypiske identiteter, og at dette gir grunnlag for barnevernsarbeidet som handler om å se etter mønstre. Godt barnevernsarbeid er også et handlende barnevern, og handlingene er ofte rettet mot omsorgsovertakelse av barnet. Analysen viser en hierarkisk rangering av barnevernsarbeideren og andre yrkesgrupper, hvor barnevernsarbeideren løftes opp i hierarkiet gjennom å være den eneste med barnets perspektiv. Analysen viser at boken tilbyr konkrete verktøy til barnevernsarbeidet, og på denne måten kan boken forstås å heve prestisjen i barnevernsarbeidet. Dermed trenger ikke barnevernsarbeideren å sette jobben ut til andre, eksterne yrkesgrupper.In this thesis I will concentrate on a book that is used in the education and practice field of child welfare. It’s a Norwegian book and the translated title will be «Children in risk/Harmful caring situations». I will look for how working with child welfare is understood in the book, and what understandings it might produce. This thesis is a qualitative textual analysis. As theoretical foundation, I will use the theory of social construction based on Peter L. Berger and Thomas Luckmann. I will also use theory of discourse psychology as a methodological tool in my analysis. My textmaterial for this analysis is the books preface and three short introductions for three different chapters. I have also chosen 7 of the books 22 case narrative. The analytic questions I had in the beginning, was to try to find what the writer expects of his readers, and how he creates his position. I also wanted to see how the “child welfare worker” was constructed in light of other welfare workers. I also wanted to look in which way the book presents theory. I wanted to understand what is presented as good work when it comes to child welfare. My analysis shows that good work related to child welfare, is to look for patterns in the people that are involved. The ones who are involved (children and parents), are often described with stereotypic identities. The stereotypic identities creates the ground for patterns. The good working of child welfare also seemed to focus on moving the children from the parents. The analysis shows a hierarchy rang of the “child welfare worker” and other social welfare workers. The “child welfare worker” seemed to be the only one that can take the perspective of the child, which contribute to lift the “child welfare worker” above the others. The analysis shows that the book gives the” child welfare worker” a concrete tool in their job, which higher the prestige in that way that they don’t need to put over their job to other welfare workers.Master i sosialt arbei

Transmission and Pattern of Spread of Chilli Veinal Mottle Virus by Aphis Gossypii Glover (Homoptera: Aphididae)

Chilli veinal mottle virus (CVMV) is a serious problem and has become a major limiting factor in growing and production of chilli in Malaysia. This virus is transmitted non-persistently by aphid, Aphis gossypii. CVMV control efforts have been unsuccessful due to lack of knowledge on the epidemiology of the virus. S tudies on transmission and spread of CVMV to chilli using nymphs and adults of A. gossypii were conducted in the laboratory and glasshouse. Aphids and test plants (Capsicum annuumcv. Me 4) were A single A . gossypii was abl e to transmit and r e tain CVMV regardless whether it was fed or starved. A. gossypii lost CVMV infectivity more rapidly in serial transfer (when feeding) than in post- acquisition starvation (when starving). Transmission level decreased as the period of serial transfer (0-60 min) and post-acquisition starvation time (1-120 min) increased, however, the level of transmission increased with aphid density. cultured and maintained in insect proof glasshouse. Fifteen seconds and thirty seconds acquisition feeding time were found to be the optimum time for A. gossypii to transmit CVMV. All aphid forms were equally efficient in CVMV transmission.Colony establishment of A. gossypii was faster when aphids were initially released on healthy plants than on CVMV infected plants. Apterous vectors spread CVMV more efficiently than alate vectors. However, CVMV s pread faster when A. gossypii was placed on the inoculum source. Apterous adults released near the inoculum source achieved the highest level of transmission compared with the alates. In the beginning, CVMV spread occurred mostly near the inoculum source and moved outward thereafter

Role of FcγRIIA in antibody dependent enhancement of dengue virus infection

Thesis (Ph. D. in Medical Sciences)--University of Tsukuba, (A), no. 5498, 2010.3.25"2009."Includes supplementary treatises (3rd group of paging)Includes bibliographical references (leaves 64-73