Scanning Single Shot Detector for Math in Document Images

We introduce the Scanning Single Shot Detector (ScanSSD) for detecting both embedded and displayed math expressions in document images using a single-stage network that does not require page layout, font, or, character information. ScanSSD uses sliding windows to generate sub-images of large document page images rendered at 600 dpi and applies Single Shot Detector (SSD) on each sub-image. Detection results from sub-images are pooled to generate page-level results. For pooling sub-image level detections, we introduce new methods based on the confidence scores and density of detections. ScanSSD is a modular architecture that can be easily applied to detecting other objects in document images. For the math expression detection task, we have created a new dataset called TFD-ICDAR 2019 from the existing GTDB datasets. Our dataset has 569 pages for training with 26,396 math expressions and 236 pages for testing with 11,885 math expressions. ScanSSD achieves an 80.19% F-score at IOU50 and a 72.96% F-score at IOU75 on TFD-ICDAR 2019 test dataset. An earlier version of ScanSSD placed 2nd in the ICDAR 2019 competition on the Typeset Formula Detection (TFD). Our data and code are publicly available at https://github.com/MaliParag/TFD-ICDAR2019 and https://github.com/MaliParag/ScanSSD, respectively

Modeling and analysis of hospital facility layout problem

The optimal solution to any facility layout problem is an important aspect and a major concem as it involves significant material handling and transportation cost. The objective is to arrange the departments within the predefined facility boundaries in the way that the interaction between the functions is efficient and the overall movement cost is minimized. While facility layout problems have traditionally focused on manufacturing facilities, there has been little work on analyzing layouts for hospitals. The thesis focuses on hospital facility layout problems (HLP) to (i) minimize the movements of patients and (ii) minimize the movements of accompanying resources such as doctors, nurses, equipment and paramedical staff. The thesis consists of two sections. In the first section, a model for the multi-floor layout problem is presented based on the minimization of movement cost. The model has travel frequency or number of trips, trip difficulty rating, baseline travel cost and distance as parameters for determining the movement cost. In the second section, some additional parameters and constraints are imposed on the model and it is simulated using Microsoft Excel. Simulations are also run to study the effect of different proposed strategies on movement cost. These proposed strategies show a reduction in movement cost from the sample layout strategy in section one. A representative example is used to illustrate the applicability of the proposed formulation

Simultaneous diophantine approximation with quadratic and linear forms

Let Q be a nondegenerate indefinite quadratic form on Rn, n≥3, which is not a scalar multiple of a rational quadratic form, and let CQ={v∈Rn|Q(v)=0}. We show that given v1∈CQ, for almost all v∈CQ\Rv1 the following holds: for any a∈R, any affine plane P parallel to the plane of v1 and v, and ∈>0 there exist primitive integral n-tuples x within ∈ distance of P for which |Q(x)-a|<∈. An analogous result is also proved for almost all lines on CQ

Thermal Dissolution of Lignite Under Hydrogen Pressure

The hydrogenation-solution reaction of North Dakota lignite was studied with various organic solvents in a batch microautoclave at reaction conditions of 740 degrees F. and 1500 psig. initial hydrogen pressure. The solvents included aliphatic, aromatic, cycloparaffinic, heterocyclic, phenolic and amino compounds. The extent of dissolution was measured from the amount of residue retained on an asbestos filter-mat after it was washed and dried. It was found that the hydroaromatic compounds were very effective, giving more than 70 percent solubilization of lignite in solution reaction. Four lignites from different mines in the Northern Great Plains Provinces were dissolved in tetralin at the same operating conditions to study the effect of composition of lignite on the solution reaction. Lignites studied ranged from 71 percent to 82 percent solubilization. There was no evident correlation between the extent of solubilization and the proximate analysis. Also, the percent solubilization and the heating value of lignite did not show any correlation in the samples studied

Distinct dimensions of anxiety and depression: anxiety and rumination differentially predict depressed mood and low positive affect

Rumination is an important transdiagnostic construct associated with both anxiety and depression. However, relationships among the three constructs have mainly been investigated using non-domain-specific self-report inventories, which index overlapping symptoms and do not distinguish well between fundamentally distinct dimensions of anxiety (anxious apprehension and anxious arousal) and depression (depressed mood and low positive affect). The present study investigated relationships among distinct anxiety dimensions, rumination, and depression dimensions using domain-specific inventories. Results indicated that anxiety dimensions of anxious apprehension and anxious arousal have differential relationships with depression dimensions of depressed mood and low positive affect. Furthermore, anxious apprehension and rumination have independent associations with both depressed mood and low positive affect, signifying that the former two are distinct and separable constructs. These results were further validated by confirmatory analyses, which indicated that the distinguishable associations among the constructs are not a result of item overlap among the scales. These findings implicate the importance of respecting the domain specificity of these constructs in examining mechanisms and pathways in the development of psychopathology

Co-Tier Interference Reduction with Intelligent Scheduling in between LTE Femtocells

In wireless networks, there is an ever-increasing demand for higher system throughput along with growing expectation for all users to be available to multimedia and Internet services. This is especially difficult to maintain at the cell-edge. To deal with the increasing demand of high speed data streaming and good quality voice traffic from mobile users at home, Femtocell Networks are deployed in homes that enables an indoor mobile user to achieve high speed downloading from the internet and make good quality voice calls. Femtocell networks suffer from the problem of interference. In this paper, a contribution to the existing research on the avoidance of interference in Femtocell networks is presented. The proposed methodology designs a resource allocation and reuse mechanism combined with allocating different resource blocks and interference-aware reuse. The presented results show that the proposed methodology can efficiently mitigate the Co-tier as well as Cross-tier interference in LTE based cellular networks and outperform the other mechanism. DOI: 10.17762/ijritcc2321-8169.150516

Applying total interpretive structural modeling to study factors affecting construction labour productivity

Construction sector has always been dependent on manpower. Most of the activities carried out on any construction site are labour intensive. Since productivity of any project depends directly on productivity of labour, it is a prime responsibility of the employer to enhance labour productivity. Measures to improve the same depend on analysis of positive and negative factors affecting productivity. Major attention should be given to factors that decrease the productivity of labour. Factor analysis thus is an integral part of any study aiming to improve productivity.  Interpretive structural modeling is a methodology for identifying and summarizing relationships among factors which define an issue or problem. It provides a means to arrange the factors in an order as per their complexity. This study attempts to use the latest version of interpretive structural modeling i.e. total interpretive structural modeling to analyze factors negatively affecting construction labour productivity. It establishes interpretive relationship among these factors facilitating improvement in the overall productivity of construction site

Ordered reduced set successive detector for low complexity, quasi-ML MIMO detection

An Ordered Reduced Set Successive Detector (RSSD) for the V-BLAST spatial multiplexing scheme that uses a general two-dimensional non-uniform set partitioning for different symbols. The detector provides improved diversity and SNR gains at reduced complexity compared to a uniform set partitioning based detector. The detector can be used to reduce the complexity, with a small tradeoff in performance. Further, it is possible to obtain a quasi-ML performance using the disclosed detector at a reduced, yet fixed, complexity

Assessing the Relationship of Kinematics with Dribbling Performance of Basketball at Different Phases

Purpose: The purpose of the study was to assess the relationship of kinematics with dribbling performance of basketball at different phases. Material and Methods: Twenty randomly selected male students aged 18-28 years and who participated in North Zone Inter University Basketball Championship 2010-11 held at CSJMU Kanpur. The data was collected by the help of A Casio Exilim F-1 High Speed Camera and Siliconcoach pro 7 motion analysis system. The Pearson’s product moment correlation coefficient was used to measure the relationship between selected kinematics variables with the performance of high dribble. The level of significance was set at 0.05. Results: The results have shown the values of coefficients of correlation of selected angular kinematics variables at moment preparation phase in High dribble were: right ankle joint (0.187), right knee joint (-0.010), right hip joint (-0.144), right shoulder joint (0.433), right elbow joint (-0.165), right wrist joint (-0.015) and Height of C.G.  (0.137). In case of moment execution phase were: right ankle joint (0.197), right knee joint (-0.126), right hip joint (-0.144), right shoulder joint (0.188), right elbow joint (-0.346), right wrist joint (-0.060) and Height of C.G. (0.137). Conclusion: The statistical findings indicate that there exists an insignificant relationship between High dribble performance and Ankle (Right), Knee (Right), Hip (Right), shoulder (Right), Elbow (Right) & Wrist (Right) joints and Height of center of gravity at moment preparation and execution. Keywords: High dribble, kinematics, Siliconcoach pro 7 motion analysi