Online scheduling with machine cost and rejection

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Online scheduling with machine cost and rejection

In this paper we define and investigate a new scheduling model. In this new model the number of machines is not fixed; the algorithm has to purchase the used machines, moreover the jobs can be rejected. We show that the simple combinations of the algorithms used in the area of scheduling with rejections and the area of scheduling with machine cost are not constant competitive. We present a 2.61...

متن کامل

Scheduling with machine cost and rejection

In this paper we consider the scheduling problem with machine cost and rejection penalties. For this problem, we are given a sequence of independent jobs, each being characterized by its processing time (size) and its penalty. No machine is initially provided, and when a job is revealed the algorithm has the option to purchase new machines. Right when a new job arrives, we have the following ch...

متن کامل

Single Machine Scheduling with Rejection: Minimizing Total Weighted Completion Time and Rejection Cost

In this paper, the authors consider a single machine scheduling problem with rejection. In traditional research, it is assumed all jobs must be processed. However, in the real-world situation, certain jobs can be rejected. In this study, the jobs can be either accepted and scheduled or be rejected at the cost of a penalty. Two objective functions are considered simultaneously: (1) minimization ...

متن کامل

Optimal Semi-online Algorithms for Scheduling with Machine Activation Cost

We investigate the following two semi-on-line scheduling problems with machine activation cost. We are given two potential identical machines to non-preemptively process a sequence of independent jobs. Machines need to be activated before starting to process, and each machine activated incurs a fixed machine activation cost. No machines are initially activated, and when a job is revealed the al...

متن کامل

Online Parallel Machine Scheduling With Hard Deadlines

This paper considers the problem of online job scheduling on M identical machines with hard deadlines. The processing time and delay time of a job are known only on its arrival. Jobs are discarded if they do not meet delay time requirement. The objective of the present work is to minimize the number of tardy jobs. A lower bound of competitive ratio when the processing time and delay time are bo...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Discrete Applied Mathematics

سال: 2007

ISSN: 0166-218X

DOI: 10.1016/j.dam.2007.07.004