1,471 research outputs found

    Analysis and Optimization of Deep Counterfactual Value Networks

    Full text link
    Recently a strong poker-playing algorithm called DeepStack was published, which is able to find an approximate Nash equilibrium during gameplay by using heuristic values of future states predicted by deep neural networks. This paper analyzes new ways of encoding the inputs and outputs of DeepStack's deep counterfactual value networks based on traditional abstraction techniques, as well as an unabstracted encoding, which was able to increase the network's accuracy.Comment: Long version of publication appearing at KI 2018: The 41st German Conference on Artificial Intelligence (http://dx.doi.org/10.1007/978-3-030-00111-7_26). Corrected typo in titl

    A new insight into the observation of spectroscopic strength reduction in atomic nuclei: implication for the physical meaning of spectroscopic factors

    Get PDF
    Experimental studies of one nucleon knockout from magic nuclei suggest that their nucleon orbits are not fully occupied. This conflicts a commonly accepted view of the shell closure associated with such nuclei. The conflict can be reconciled if the overlap between initial and final nuclear states in a knockout reaction are calculated by a non-standard method. The method employs an inhomogeneous equation based on correlation-dependent effective nucleon-nucleon (NN) interactions and allows the simplest wave functions, in which all nucleons occupy only the lowest nuclear orbits, to be used. The method also reproduces the recently established relation between reduction of spectroscopic strength, observed in knockout reactions on other nuclei, and nucleon binding energies. The implication of the inhomogeneous equation method for the physical meaning of spectroscopic factors is discussed.Comment: 4 pages, accepted by Phys. Rev. Let

    ETHNOBOTANY IN RELATION TO LIVELIHOOD SECURITY IN DISTRICT BASTAR OF CHHATTISGARH STATE WITH SPECIAL REFERENCE TO NON -TIMBER FOREST PRODUCES

    Get PDF
    In present study ethnobotany in relation to livelihood security in district Bastar of Chhattisgarh state with special reference to non timber forest produces were found to collect variety of plant produces from forests, for their livelihood security. Those collected plant produces were non timber forest produces (NTFPs).In this research total 44 plants producing NTFP were noted to be collected by tribals in 20 villages of Bastar district.Plant and plant produce collected  by the tribals from the plants were seeds of 11 plants, fruits of 11, roots of 03, Rhizomes of 04,flowers of 04, secretory products from 03 plants, while 04 whole plants.Lakh and cocoons were also collected by the tribals from the forest.Beside collection of NTFPs,69 potential market place in Bastar district, where marketing of NTFPs was found maximum were also identified for the selling of plant produces

    Modelling , of Polyurethanes Based on Hydroxyl- Terminated Polybutadiene

    Get PDF
    Forty formulations based on four different grades ofhydroxyl-terminated polybutadiene, HTPB(hydroxyl value 20- 40 mg KOHlg) at r = [NCO] / [OH] values in the range 0.7 -1.0 with varyingamounts of trimethylol propane and butane diol and containing 86 per cent solid loading wereconsidered to test the applicability of a.-model of Marsh, et al. for prediction of the mechanicalproperties of composite solid propellants. Two network parameters, crosslink density (Ve) andeffective chain length (LX), were calculated from the model. Tensile strength and modulus werecorrelated to Ve and elongation at break to LX. Using the correlations obtained from experimental dataat r< 0.8, mechanical properties of the various fonnulations were predicted. Good agreement betweenexperimental and predicted properties was obtained for fonnulations with modulus 10 KSC. Probablereasons for deviation observed at stoichiometric ratio r < 0.8 and low modulus values are discussed.Improved correlations between mechanical properties and network parameters, applicable over a widerange of fonnulations, were arrived at. The standard errors of prediction were found to be close to :+- 1 0-value of the measurement

    Medicinal plants used as antidotes in northern part of Bastar district of Chhattisgarh.

    Get PDF
    The present study has been done on the traditional knowledge of the plants, widely used as Antidotes amongst the local peoples of north Bastar region of Chhattisgarh. The survey was conducted in north Bastar region of the Chhattisgarh state and information was collected from people about the plants used as Antidote against the treatment of Snake/Scorpion bite. The study revealed total of 29 species of plants belonging to 20 families widely used as antidote in northern part of Bastar. The plants species were documented on the basis of their phytochemicals and use in Antidote. Maximum of (03) species were belong to the family Asclepiadaceae and (02) each to family Fabaceae , Acanthaceae and Liliaceae. 75.86 % of the observed plants were found to be propagated by their seeds while, 6.89 % by rhizome, 10.34% by stem cutting and 3.44 % each by other plant parts like tuber and bulb. Study also revealed that plants yielding antidotes are propagated and conserved by the local people of northern region of Bastar as they are vital in treatment of snake/scorpion bite.&nbsp

    Privacy Preserving Multi-Server k-means Computation over Horizontally Partitioned Data

    Full text link
    The k-means clustering is one of the most popular clustering algorithms in data mining. Recently a lot of research has been concentrated on the algorithm when the dataset is divided into multiple parties or when the dataset is too large to be handled by the data owner. In the latter case, usually some servers are hired to perform the task of clustering. The dataset is divided by the data owner among the servers who together perform the k-means and return the cluster labels to the owner. The major challenge in this method is to prevent the servers from gaining substantial information about the actual data of the owner. Several algorithms have been designed in the past that provide cryptographic solutions to perform privacy preserving k-means. We provide a new method to perform k-means over a large set using multiple servers. Our technique avoids heavy cryptographic computations and instead we use a simple randomization technique to preserve the privacy of the data. The k-means computed has exactly the same efficiency and accuracy as the k-means computed over the original dataset without any randomization. We argue that our algorithm is secure against honest but curious and passive adversary.Comment: 19 pages, 4 tables. International Conference on Information Systems Security. Springer, Cham, 201

    Probing Nonlocal Spatial Correlations in Quantum Gases with Ultra-long-range Rydberg Molecules

    Full text link
    We present photo-excitation of ultra-long-range Rydberg molecules as a probe of spatial correlations in quantum gases. Rydberg molecules can be created with well-defined internuclear spacing, set by the radius of the outer lobe of the Rydberg electron wavefunction RnR_n. By varying the principal quantum number nn of the target Rydberg state, the molecular excitation rate can be used to map the pair-correlation function of the trapped gas g(2)(Rn)g^{(2)}(R_n). We demonstrate this with ultracold Sr gases and probe pair-separation length scales ranging from Rn=14003200R_n = 1400 - 3200 a0a_0, which are on the order of the thermal de Broglie wavelength for temperatures around 1 μ\muK. We observe bunching for a single-component Bose gas of 84^{84}Sr and anti-bunching due to Pauli exclusion at short distances for a polarized Fermi gas of 87^{87}Sr, revealing the effects of quantum statistics.Comment: 6 pages, 5 figure

    Plants used by kamar, gond and halba tribe of Dhamtari district of Chhattisgarh for relief of sickle cell disease

    Get PDF
    In Chhattisgarh state sickle cell disease is reported in many tribal communities. Some of these tribes reside in Jawwara, Dugali, Nagari, Sihawa, which are the remote forest areas of Dhamtari. They totally dependent on forest and forest produce for their livelihood and ailments. Gond is the dominant tribe of C.G. as well as of India, Halba is an advance tribe and Kamar tribe is declared as one of the most primitive tribe of India in sixth five year plan. During Ethnobotanical survey it was observed that for cure ailments they used their traditional herbal medicines and use wild vegetables fruits and foods such as under ground rhizome of Curcuma angustifolia (Tikhur) fresh tuberous roots of Abelmoschus crinitus (Dotokand) flowers of Indigofera cassoides (Ghirgholi) and boiled seeds of Dolichos biflorus (Kulthi), unriped fruits of Carica papaya (Papita) and Musa paradisica (Kela) to improve their general health conditions. In traditional herbal medicines the whole plants as decoction of Andrographis paniculata. (Bhuineem) dried roots of Scoparia dulcies boiled, tubers of Dioscorea sps, dried powder of Chlorophytum tuberosum (Safed Musli) are used for general health problems. In the present study 20 sickle cell homozygous patients (identified during screening process of sickle cell project coordinated by Department of Biochemistry. Pt. Jawaharlal Nehru Memorial Medical College. Raipur, C.G.), are taken under consideration to check the level of fetal haemoglobin and haemoglobin after giving traditional herbal treatment by traditional medicine man for further six months because most of the health problems are managed by local traditional healers. After the stipulated time the fetal hemoglobin and hemoglobin status will be seen so as to see the role of traditional herbs taken by the tribal people.  Â

    Study of thyroid dysfunction and dyslipidemia in chronic kidney diseases

    Get PDF
    Background: Though there are many studies on thyroid dysfunction and dyslipidemia in Chronic Kidney Disease (CKD), no study is conclusive. Aim of this study was to correlate abnormalities in thyroid function and lipid profile with the severity of renal failure and also to observe the difference of these abnormalities between patients on conservative management verses hemodialysis.Methods: Hundred consecutive CKD cases admitted to Medicine Department were taken up for the study. They were divided into two groups as Group-A [on conservative management] and Group-B [on regular Hemodialysis (HD)]. Hundred healthy persons were taken as control in Group-C. After evaluation of thyroid function and lipid profile statistical analysis was done by students t-test, chi-square and regression analysis.Results: Hundred CKD cases with 74% male (n=74) and 26% female (n=26) in a M: F ratio of 2.9:1 were found to be in different stages CKD (0, 2, 20, 28 and 50 in stage-1 to stage-5 respectively). In 50 cases of stage-5 CKD, 30 were on HD and 20 on conservative management. Diabetes Mellitus (DM) (40%) was the commonest etiology of CKD followed by Hypertension (HTN), obstructive uropathy, chronic glomerulonephritis (CGN) and polycystic kidney disease (PKD). Thyromegaly was not found in a single case. In all CKD cases (Group-A+B) TT3 (TT3) was significantly low (P =0.0011) when compared with control (Group-C) and no difference was found between Group-A and Group-B. Fall in TT3 worsened with increasing severity of CKD. Lipid profile study revealed Decreased High-Density Lipoprotein Cholesterol (HDLc) and increased Triglyceride (TG), Total Cholesterol (TC), Low Density Lipoprotein Cholesterol (LDLc), TC/HDLc and LDLc/HDLc in Group-A than Group-B but only TG and TC increase was statistically significant. The levels of TG and TC and TC/HDLc increased as the stage of CKD progressed and was statistically significant (P= 0.035).Conclusions: There occurs a state of biochemical hypothyroidism without overt clinical hypothyroid state in CKD, the extent of which correlates with the severity of CKD. Increased cardiovascular complications occur due to accelerated atherosclerosis in CKD. This study confirmed that atherogenic lipid profile and thyroid dysfunction worsen with the progression of disease. Difference between patients on conservative management and HD was not found
    corecore