New Codes and Inner Bounds for Exact Repair in Distributed Storage Systems

We study the exact-repair tradeoff between storage and repair bandwidth in distributed storage systems (DSS). We give new inner bounds for the tradeoff region and provide code constructions that achieve these bounds.Comment: Submitted to the IEEE International Symposium on Information Theory (ISIT) 2014. This draft contains 8 pages and 4 figure

Cyclic LRC Codes and their Subfield Subcodes

We consider linear cyclic codes with the locality property, or locally recoverable codes (LRC codes). A family of LRC codes that generalizes the classical construction of Reed-Solomon codes was constructed in a recent paper by I. Tamo and A. Barg (IEEE Transactions on Information Theory, no. 8, 2014; arXiv:1311.3284). In this paper we focus on the optimal cyclic codes that arise from the general construction. We give a characterization of these codes in terms of their zeros, and observe that there are many equivalent ways of constructing optimal cyclic LRC codes over a given field. We also study subfield subcodes of cyclic LRC codes (BCH-like LRC codes) and establish several results about their locality and minimum distance.Comment: Submitted for publicatio

Cyclic LRC Codes, binary LRC codes, and upper bounds on the distance of cyclic codes

We consider linear cyclic codes with the locality property, or locally recoverable codes (LRC codes). A family of LRC codes that generalize the classical construction of Reed-Solomon codes was constructed in a recent paper by I. Tamo and A. Barg (IEEE Trans. Inform. Theory, no. 8, 2014). In this paper we focus on optimal cyclic codes that arise from this construction. We give a characterization of these codes in terms of their zeros, and observe that there are many equivalent ways of constructing optimal cyclic LRC codes over a given field. We also study subfield subcodes of cyclic LRC codes (BCH-like LRC codes) and establish several results about their locality and minimum distance. The locality parameter of a cyclic code is related to the dual distance of this code, and we phrase our results in terms of upper bounds on the dual distance.Comment: 12pp., submitted for publication. An extended abstract of this submission was posted earlier as arXiv:1502.01414 and was published in Proceedings of the 2015 IEEE International Symposium on Information Theory, Hong Kong, China, June 14-19, 2015, pp. 1262--126

DIFFERENT DIMENSIONS OF TEAMS

Popularity ofteams is growing in 21st Century. Organizations are getting theirwork done through different types of teams. Teams have proved that thecollective performance is more than the sum of the individual performances.Thus, the teams have got different dimensions such as quantitative dimensionsand qualitative dimensions. The Quantitative dimensions of teams such as teamperformance, team productivity, team innovation, team effectiveness, teamefficiency, team decision making and team conflicts and Qualitative dimensionsof teams such as team communication, team coordination, team cooperation, teamcohesion, team climate, team creativity, team leadership and team conflictshave been discussed in this article

Geospatial Technology in Urban Forest suitability: Analysis for Ranchi, Jharkhand, India

Changes in the landscape patterns have limited the range of greenery in the urban vicinity. Although urban forestry is  widely recognized and practiced in developed countries, it is less known in developing countries. It is an integral part that cannot  be overlooked because it enhances the quality of life and the environment for urban inhabitants and ensures the sustainable urban  development.  Geospatial technology has the potential to analyse and delineate suitable sites for urban forestry. For the present study we have selected  one of the Indian cities, Ranchi, where rapid urbanization has altered the climate of the city by increasing the summer heat,  air and noise pollution. In addition, the development of infrastructure has left very little space for the development of greenery. The  study utilized Landsat OLI satellite data (30 m resolution; 2015) and analysed it for suitable locations in open spaces after digital  processing. A radius of 30 km from the city centre, Firayalal chowk was analysed. Ancillary data, like an ASTER DEM (resolution  30 m) wetness map, slope, soil carbon, a drainage and urban buffer were incorporated in the GIS domain for Multi Criteria Analysis  (MCA). The land surface temperature was also computed using thermal bands of Landsat 8 OLI. A suitability map which identified  potential area (27% as highly suitable, 38% as moderately suitable and 35% as least suitable sites within the existing open spaces).  Highly potential sites are located along the Kanke reservoir, the Harmu River, near Khelgaon and the airport.  High temperatures (low vegetation and high settlement concentration) were noted within the 0-10 km buffer zone close to the city  centre. Whereas low temperatures (high vegetation and low settlement concentration) were noted within the 20-30 km buffer zone,  far from the city centre.  Therefore, integrating satellite remote sensing data in the GIS domain helps in analysing, identifying and locating suitable sites for  urban forest development and management. The high

The Key Functions and Best Practices of Software Product Management

This paper is basically an overview, practitioners approach and best practices of software product management. The basic functions of software product management, right from product concept, prototype development, requirements management, product planning, planning product lines, product development, product testing, product launch and deployment, product marketing, aligning product management with program management, the relationship of product management with individual project management and product withdrawal are discussed in this paper. This paper high lights some of the best practices of software product management and managing individual software projects. This paper gives a bird eye view of software product management with a block diagram, shows the relationship between product management and individual project management, product roadmap, different releases of software product and their relationships and flow of software product from one version to another version

Understanding the Meaning of “Project Success”

Fortune 500 organizations are executing their tasks using projects. Project management is the area of concentration across the world. Different stakeholders have a different perspective about project success. The meaning of project success had been explained in this article. In addition, the Project Critical Success Factors (CSFs) were mentioned. The research of Standish Group on project success and project success metrics was presented. Earlier research on the meaning of project success and project critical success factors was highlighted. The works of Jeffery K. Pinto and Dennis P. Slevin, David and Adam, DeLone and McLean, and The Standish Group Research were discussed in this article. The methodology included secondary research based on literature view of prominent empirical studies and the literature reviews by making note of findings and observations from those studies. The initial literature collected led to further search of articles based on their references. The research findings indicate that the top of the most success factors for many projects include project objective, top management commitment, competent project team, and user involvement

Analysis of Urban Sprawl Dynamics Using Geospatial Technology in Ranchi City, Jharkhand, India

The availability of remote sensing satellite data at various spatial, temporal and spectral resolutions provides enormous opportunity to map the urban sprawl. When coupled with Geographic Information System (GIS) it is possible to evaluate, analyse and integrate large data. We need to understand and quantify the urban sprawl on spatial and temporal scales which forms a basis for better planning and sustainable management of cities and towns. The city of Ranchi has witnessed unprecedented urban growth after assuming the status of a capital of Jharkhand state, India in 2000. The increasing population has put pressure on the natural resources of the city. The urban growth has been in a haphazard manner at the cost of agricultural lands, forest land and open green spaces such as park, garden and recreational forestry.The present study analysed the urban sprawl in Ranchi city, using Landsat data from 1976, 2002 and 2015. The study revealed that the annual urban growth rate was 1.76 ha/yr over the period from 1976 to 2002 whereas the annual growth rate was 2 ha/yr over the period from 2002 to 2015. The northern side of the city has witnessed more expansion in 2002 when compared with the growth in 1976. Increase in urban density was seen at the distances of 3, 4,5,6,7 and 8km between 1976 and 2015 and the rate was higher than 25%.The driving factors of the development were infrastructure, educational and business expansion. Thus, spatial analyses of urban sprawl are a prerequisite for curbing the unplanned urban growth and ensure sustainable living