Inductive vs transductive inference, global vs local models: SVM, TSVM, and SVMT for gene expression classification problems

This paper compares inductive-, versus transductive modeling, and also global-, versus local models with the use of SVM for gene expression classification problems. SVM are used in their three variants - inductive SVM, transductive SVM (TSVM), and SVM tree (SVMT) -the last two techniques being recently introduced by the authors. The problem of gene expression classification is used for illustration and four benchmark data sets are used to compare the different SVM methods. The TSVM outperforms the inductive SVM models applied on a small to medium variable (gene) set and a small to medium sample set, while SVMT is superior when the problem is defined with a large data set, or - a large set of variables (e.g. 7,000 genes, with little or no variable pre-selection)

Incremental Linear Discriminant analysis for classification of Data Streams

This paper presents a constructive method for deriving an updated discriminant eigenspace for classification when bursts of data that contains new classes is being added to an initial discriminant eigenspace in the form of random chunks. Basically, we propose an incremental linear discriminant analysis (ILDA) in its two forms: a sequential ILDA and a Chunk ILDA. In experiments, we have tested ILDA using datasets with a small number of classes and small-dimensional features, as well as datasets with a large number of classes and large-dimensional features. We have compared the proposed ILDA against the traditional batch LDA in terms of discriminability, execution time and memory usage with the increasing volume of data addition. The results show that the proposed ILDA can effectively evolve a discriminant eigenspace over a fast and large data stream, and extract features with superior discriminability in classification, when compared with other methods. © 2005 IEEE

WarnFi: Non-invasive wifi-based abnormal activity sensing using non-parametric model

© 2017 IEEE. Abnormal activity sensing has attracted increasing research attention in military surveillance, patient monitoring, and health care of children and elderly, etc. Researchers have exploited the characteristics of wireless signals to sense 'keystrokes' and 'human talks', relieving the privacy invasion concern caused by mounting the surveillance cameras or wearing the smart devices. However, existing technologies usually require some specialized hardware, and can only sense a fixed set of pre-defined activities through a supervised learning from those wireless signals patterns. In this paper, we propose WarnFi, a non-invasive abnormal activity sensing system with only two commodity off-the-shelf (COTS) WiFi devices. The intuition of WarnFi is that whenever the human body occludes the wireless signal transmitting from the access point to the receiver, the time-series of Channel State Information (CSI) will experience a unique variation. By using a non-parametric model, WarnFi can dynamically cluster the human body activities for abnormal sensing. Extensive experiments in various scenarios demonstrate the satisfactory performance of WarnFi

AdS and Lifshitz Black Holes in Conformal and Einstein-Weyl Gravities

We study black hole solutions in extended gravities with higher-order curvature terms, including conformal and Einstein-Weyl gravities. In addition to the usual AdS vacuum, the theories admit Lifshitz and Schr\"odinger vacua. The AdS black hole in conformal gravity contains an additional parameter over and above the mass, which may be interpreted as a massive spin-2 hair. By considering the first law of thermodynamics, we find that it is necessary to introduce an associated additional intensive/extensive pair of thermodynamic quantities. We also obtain new Liftshitz black holes in conformal gravity and study their thermodynamics. We use a numerical approach to demonstrate that AdS black holes beyond the Schwarzschild-AdS solution exist in Einstein-Weyl gravity. We also demonstrate the existence of asymptotically Lifshitz black holes in Einstein-Weyl gravity. The Lifshitz black holes arise at the boundary of the parameter ranges for the AdS black holes. Outside the range, the solutions develop naked singularities. The asymptotically AdS and Lifshitz black holes provide an interesting phase transition, in the corresponding boundary field theory, from a relativistic Lorentzian system to a non-relativistic Lifshitz system.Comment: typos corrected, references adde

Conformal Gravity and Extensions of Critical Gravity

Higher-order curvature corrections involving the conformally-invariant Weyl-squared action have played a role in two recent investigations of four-dimensional gravity; in critical gravity, where it is added to the standard cosmological Einstein-Hilbert action with a coefficient tuned to make the massive ghostlike spin-2 excitations massless, and in a pure Weyl-squared action considered by Maldacena, where the massive spin-2 modes are removed by the imposition of boundary conditions. We exhibit the connections between the two approaches, and we also generalise critical gravity to a wider class of Weyl-squared modifications to cosmological Einstein gravity where one can eliminate the massive ghostlike spin-2 modes by means of boundary conditions. The cosmological constant plays a crucial role in the discussion, since there is then a "window" of negative mass-squared spin-2 modes around AdS_4 that are not tachyonic. We also construct analogous conformal and non-conformal gravities in six dimensions.Comment: Latex, 20 pages, typos in (4.21) and (A.7) were correcte

Are spectroscopic factors from transfer reactions consistent with asymptotic normalisation coefficients?

It is extremely important to devise a reliable method to extract spectroscopic factors from transfer cross sections. We analyse the standard DWBA procedure and combine it with the asymptotic normalisation coefficient, extracted from an independent data set. We find that the single particle parameters used in the past generate inconsistent asymptotic normalization coefficients. In order to obtain a consistent spectroscopic factor, non-standard parameters for the single particle overlap functions can be used but, as a consequence, often reduced spectroscopic strengths emerge. Different choices of optical potentials and higher order effects in the reaction model are also studied. Our test cases consist of: $^{14}$C(d,p)$^{15}$C(g.s.) at $E_d^{lab}=14$ MeV, $^{16}$O(d,p)$^{17}$O(g.s.) at $E_d^{lab}=15$ MeV and $^{40}$Ca(d,p)$^{41}$Ca(g.s.) at $E_d^{lab}=11$ MeV. We underline the importance of performing experiments specifically designed to extract ANCs for these systems.Comment: 15 pages, 12 figures, Phys. Rev. C (in press

The Determinant Factors of Creative Economy Craftsmen Sustainability in South Sulawesi Province

Creative economy craftsmen have big contribution to regional income and able to sustain in crisis. It can be seen on the average of Gross Domestic Product has employed 5.4 million in average for 2002-2009 with participation level of 5.8%. Therefore, a strategic sustainability is needed especially for the determinant factors of sustainability related to creative economy craftsmen. This research aims to observe the determinant factors of sustainability of creative economy craftsmen in Wajo and Bulukumba Regencies in South Sulawesi Province. Sample for the research was 215 creative economy craftsmen. Data collection is conducted on January to April 2012 consists of primary and secondary data. Research method was using prospective analysis to determine important factors to the sustainability of creative economy craftsmen that predict future alternatives. Result from Rap-UEK simulation for the composite of five dimensions showed a less sustainable status of 48.97%. Research results showed that there are six dominant or main factors in determining business sustainability of creative economy craftsmen, one place sale, coordination with the government and private sectors, capital source, increase in the product of creative economy business, business field and product development Doi: 10.12777/ijse.5.2.18-24 [How to cite this article: Ibrahim, H., Amanah, S., Asngari, P.S., and Purnaningsih, N. (2013). The Determinant Factors of Creative Economy Craftsmen Sustainability in South Sulawesi Province. International Journal of Science and Engineering, 5(2),18-24. Doi: 10.12777/ijse.5.2.18-24

Persepsi Perempuan terhadap Pemanfaatan Pekarangan Mendukung Diversifikasi Pangan di Sulawesi Utara

Penelitian bertujuan menganalisis persepsi perempuan tentang fungsi dan manfaat pekarangan, diversifikasi pangan dan makanan sehat. Penelitian dilakukan di Kabupaten Minahasa dan Kota Bitung Provinsi Sulawesi Utara. Penelitian dilakukan mulai Maret hingga Desember 2015, melibatkan 267 responden terdiri dari 140 responden di Minahasa dan 127 responden di Bitung, dipilih dari 803 perempuan peserta program pemanfaatan pekarangan Data dianalisis menggunakan statistik deskriptif, analisisis korelasi Rank Spearman dan uji Mann Whitney. Hasil analisis statistik deskriptif menyatakan, tingkat persepsi responden terhadap fungsi dan manfaat pekarangan, diversifikasi pangan dan makanan sehat berada pada kategori tinggi. Terdapat perbedaan persepsi terhadap diversifikasi pangan antara Minahasa dan Bitung. Persepsi tentang fungsi dan manfaat pekarangan berhubungan dengan: ketersediaan dan kesesuaian informasi, ketersediaan sarana produksi, dukungan keluarga, peran kelompok dan penyuluhan. Persepsi tentang diversifikasi pangan berhubungan nyata dengan jumlah anggota keluarga, kesesuaian informasi, kredibilitas pemberi informasi, dan ketersediaan sarana produksi. Persepsi tentang makanan sehat berhubungan negatif dengan curahan waktu dan berhubungan positif dengan kesesuaian informasi, ketersediaan sarana produksi, peran kelompok, dan penyuluhan. Untuk membangun persepsi positif terhadap pemanfaatan pekarangan diperlukan informasi berupa materi penyuluhan sesuai kebutuhan perempuan, penguatan kelompok, dan dukungan sarana produksi

Deconstructing graviphoton from mass-deformed ABJM

Mass-deformed ABJM theory has a maximally supersymmetric fuzzy two-sphere vacuum solution where the scalar fields are proportional to the TGRVV matrices. We construct these matrices using Schwinger oscillators. This shows that the ABJM gauge group that corresponds to the fuzzy two-sphere geometry is $U(N)\times U(N-1)$. We deconstruct the graviphoton term in the D4 brane theory. The normalization of this term is fixed by topological reasons. This gives us the correct normalization of the deconstructed U(1) gauge field and fixes the Yang -Mills coupling constant to the value which corresponds to M5 brane compactified on \mb{R}^ {1,2} \times S^3/{\mb{Z}_k}. The graviphoton term also enable us to show that the zero mode contributions to the partition functions for the D4 and the M5 brane agree.Comment: 26 page

Strategi Pengembangan Peran Penyuluh Pertanian Lapang di Provinsi Banten

This research aim was to formulate priority of strategy development the role of agriculture extension agent in Banten. To determine the priority of strategy development the role of agriculture extension agent used SWOT and AHP. Result of research indicated that the priority of development Strategy of role the agriculture extension agent in Banten were: (1) Improving the quality of human resouces of extension agent by diklat from other institution to get the ability, knowledge, and skill; (2) Improving of quality of counselling and cooperation with the relevant institution by the existence of fundamental duty clarity and function; (3) Product marketing competitive agriculture by maximizing role of group of farmer; (4) Optimalization of agriculture development with the guarantee of invitation regulation; and (5) Exploiting technology to support the agriculture extinsion program