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Just In Time Indexing  [PDF]
Pinaki Mitra,Girish Sundaram,Sreedish PS
Computer Science , 2013,
Abstract: One of the major challenges being faced by Database managers today is to manage the performance of complex SQL queries which are dynamic in nature. Since it is not possible to tune each and every query because of its dynamic nature, there is a definite possibility that these queries may cause serious database performance issues if left alone. Conventional indexes are useful only for those queries which are frequently executed or those columns which are frequently joined in SQL queries. This proposal is regarding a method, a query optimizer for optimizing database queries in a database management system. Just In Time(JIT) indexes are On Demand, temporary indexes created on the fly based on current needs so that they would be able to satisfy any kind of queries. JIT indexes are created only when the configured threshold values for resource consumption are exceeded for a query. JIT indexes will be stored in a temporary basis and will get replaced by new JIT indexes in course of time. The proposal is substantiated with the help of experimental programs and with various test cases. The idea of parallel programming is also brought into picture as it can be effectively used in a multiprocessor system. Multiple threads are employed while one set of threads proceed in the conventional way and the other set of threads proceed with the proposed way. A live switch over is made when a suitable stage is reached and from then onwards the proposed method will only come into picture.
Just in Time to Flip Your Classroom  [PDF]
Nathaniel Lasry,Michael Dugdale,Elizabeth Charles
Physics , 2013, DOI: 10.1119/1.4849151
Abstract: With advocates like Sal Khan and Bill Gates, flipped classrooms are attracting an increasing amount of media and research attention. We had heard Khan's TED talk and were aware of the concept of inverted pedagogies in general. Yet, it really hit home when we accidentally flipped our classroom. Our objective was to better prepare our students for class. We set out to effectively move some of our course content outside of class and decided to tweak the Just-in-Time-Teaching approach (JiTT). To our surprise, this tweak - which we like to call the flip-JiTT - ended up completely flipping our classroom. What follows is narrative of our experience and a procedure that any teacher can use to extend JiTT to a flipped classroom.
Just-in-time, just-enough-time and horizon signalling protocols on optical burst switches  [PDF]
Pinar Kirci,A. Halim Zaim
Optica Applicata , 2006,
Abstract: Optical burst switch (OBS) is considered to be a promising switch technology for the future network. In this paper, just-in-time (JIT), just-enough-time (JET) and horizon signalling schemes for OBS are presented. These signalling schemes run over a core dynamic wavelength division multiplexing (DWDM) network. The network is proposed to support IP, ATM and burst traffic. We apply the Poisson and self-similar models to identify inter-arrival times in these protocols and the burst contention is handled by burst dropping. As a result, the variety of the simulation results show the pros and cons of the evaluated JIT, JET and horizon signalling schemas.
Difficulties of Just-In-Time Implementation  [PDF]
Sandeep Kumar,Gaurav Garg,Ankit Kamboj,Mandeep Singh
International Journal on Theoretical and Applied Research in Mechanical Engineering , 2013,
Abstract: Many companies experience difficulty in implementing Just-in-Time (JIT) in their manufacturing system. Based on observations, the article argues that the problem is partly due to confusion about JIT and its implications and partly due to a desire to implement JIT within an existing organisational structure. A four-level classification system is presented as a way of summarising the different degrees of JIT implementation and their difficulties.JIT philosophy has been of great interest to the manufacturers and researchers over the past few decades. JIT systems are designed to produce the goods & deliver services as and when required.JIT systems are capable to attain the far-reaching productivity and quality standards. Numerous benefits have been claimed by the firms implementing JIT across the World. Efforts are being made day-by-day to look into the benefits and their feasibility in the Manufacturing Industries. Despite the profound interest in it, the extent of implementation in India has not been satisfactory. Many firms which had benefitted from JIT systems appear to address only a few features, rather than looking into the whole philosophy of JIT. The paper attempts to address the necessary initiatives required to be taken by the Management of Indian Manufacturing Industry for the implementation of the various JIT subsets, through a survey based on previous literature. Further, it analyzes and concludes the modification of procedures and operations required for its successful implementation along with the challenges encountered during the JIT philosophy implementation.
Just in Time Strategy in Balancing of Two-Sided Assembly Line Structure  [cached]
W. Grzechca
International Journal of Materials, Mechanics and Manufacturing , 2013, DOI: 10.7763/ijmmm.2013.v1.14
Abstract: In this paper a problem of two-sided assembly line balancing problem and Just in Time strategy is considered. Problem of assigning tasks to assembly line is known more than 60 years. Different balances occur in different quality of final results. Smoothness index (SI), time of line (LT) and line efficiency (LE) help to estimate the ends solutions. Additionally detailed idle times are described. In production systems products are assembled in required quantity directly to the market. One of the critical elements in Just in Time strategy is smooth flow production process. Author tries to connect assembly line balancing problem with this strategy. A numerical example is calculated and conclusions are presented.
Apportionment Approach for Just-In-Time Sequencing Problem  [PDF]
Tanka Nath Dhamala,Gyan Bahadur Thapa
Journal of the Institute of Engineering , 2009, DOI: 10.3126/jie.v7i1.2065
Abstract: The Just-in-Time sequencing of different products is a well-known socio-industrial problem which is supposed to minimize the maximum and total deviations between actual and ideal productions; and the apportionment problem is a socio-political problem which aims to allocate representatives to a state as close as its exact quota. Significant amounts of research have been done in these two problems independently. The relation between them has been studied from last decade. In this article, both problems are addressed with some just-in-time sequencing algorithms and their characterizations via apportionment. Key words: apportionment, divisor methods, algorithms, Just-in-Time sequencing. Journal of the Institute of Engineering , Vol. 7, No. 1, July, 2009 pp.76-89 doi: 10.3126/jie.v7i1.2065
Educational Suport for Hypermedia Design  [cached]
Cristina Portugal,Rita Maria de Souza Couto
International Journal of Modern Education and Computer Science , 2012,
Abstract: This paper presents a project directed towards the production of a book in two versions, printed and digital, with the provisional title of “Design, Education and Technology: support for teaching Hypermedia Design, which constitutes a didactic material to support teaching and research activities for the Design area. The starting point was the work by Dr. Cristina Portugal, funded by National Council for Scientific and Technological Development – CNPq, as a scholarship researcher in a Post-PhD internship in the Graduate Studies in Design Program. Besides the theoretical content itself, the project for the aforementioned book includes studies on information architecture, layout, programming language and navigability, among other aspects. The book will gather issues about Design, Education and Hypermedia aimed at offering resources to enhance the use of multiple languages that converge in hypermedia environments, their applicability, techniques and methods in light of Design in Situations of Teaching-Learning. The content for producing didactic material, the object of this project, is partially concluded.
An Evaluation Instrument for Hypermedia Courseware  [cached]
Georgiadou Elissavet,Anastasios A. Economides
Educational Technology & Society , 2003,
Abstract: This paper presents an evaluation instrument for hypermedia courseware. Its design is based on an evaluation framework developed from the integration of a number of important issues emerged from research on instructional design and system evaluation the past fifteen years and is concerned with both social and practical acceptability of hypermedia courseware. The term social acceptability is related with the social basis of an educational system. Practical acceptability is examined through the evaluation of the following sectors: content, presentation and organization of the content, technical support and update processes and finally, the evaluation of learning. All sectors are equally important, as hypermedia courseware has to be simultaneously pedagogically and technically sound. The paper first discusses other evaluation efforts; next it introduces the evaluation framework and finally presents the evaluation instrument and suggests ways for the analysis of the results.
Just-In-Time compilation of OCaml byte-code  [PDF]
Benedikt Meurer
Computer Science , 2010,
Abstract: This paper presents various improvements that were applied to OCamlJIT2, a Just-In-Time compiler for the OCaml byte-code virtual machine. OCamlJIT2 currently runs on various Unix-like systems with x86 or x86-64 processors. The improvements, including the new x86 port, are described in detail, and performance measures are given, including a direct comparison of OCamlJIT2 to OCamlJIT.
Evaluation Of Just In Time (JIT) Elements In Banking Sector Using Anova Technique
International Journal of Innovative Research in Science, Engineering and Technology , 2013,
Abstract: Recently number of Indian banks has increased enormously. The effective management of banks is fast becoming of prime importance to the general welfare and prosperity of the society. Moreover with international competition some researchers attempt to improve the management techniques to increase productivity of service sector. JIT is a system designed to make an organization operate efficiently and with a minimum number of human and mechanical resources. JIT also improves quality, reduces inventory levels and provides maximum motivation to solve problems as soon as they occur. This study work finds various Just In Time (JIT) elements which are important to both the customer and the employers in Indian context. This paper presents the relative importance and difficulties in implementation of JIT elements in the banking sector and verification of data with the help of Analysis Of Variance (ANOVA) Technique and also identifies the JIT elements which are most important and easy to implement in the manufacturing Industries.
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