A graph based method for database concurrency control

A Partition Based Method for Spectrum-Preserving Mesh Simplification Yazgan, Misranur; Sahillioğlu, Yusuf; Department of Computer Engineering (2022-8-29) When the complexity of a mesh starts introducing high computational costs, mesh simplification methods come into the picture, to reduce the number of elements utilized to represent the mesh. Majority of the simplification methods focus on preserving the appearance of the mesh, ignoring the spectral properties of the differential operators derived from the mesh. The spectrum of the Laplace-Beltrami operator is essential for a large subset of applications in geometry processing. Coarsening a mesh without cons...
A PARALLEL BACKWARD-CHAINING INFERENCE ENGINE FOR PRODUCTION SYSTEMS ABUSUOD, SM; TOLUN, MR (1992-04-24) In this paper, a new model to parallelize the backward-chaining inference technique in production systems called ParBack is presented. In this model, the data dependencies between rules are analyzed and then converted to special notations that constitute the search space. Parallelism is exploited in three directions: some processors are dedicated to perform the inference process; other processors perform processes that guide the inference process to the useful paths in the search space; and a third group of...
A SUPPORT VECTOR MACHINE METHOD FOR BID/NO BID DECISION MAKING Sönmez, Rifat (2017-01-01) The bid/no bid decision is an important and complex process, and is impacted by numerous variables that are related to the contractor, project, client, competitors, tender and market conditions. Despite the complexity of bid decision making process, in the construction industry the majority of bid/no bid decisions is made informally based on experience, judgment, and perception. In this paper, a procedure based on support vector machines and backward elimination regression is presented for improving the exi...
A mixed integer programming method for multi-project resource leveling Altun, Murat; Sönmez, Rifat; Akçamete Güngör, Aslı (2020-06-01) In the implementation of construction projects, efficient resource planning plays a prominent role in developing cost-efficient solutions. Therefore, the decision makers should level the project resources with respect to the planned project schedule to reduce the project costs. In general, they usually focus on each project separately to optimize the project’s resource usage according to the intended resource objective function of the resource leveling problem. However, in real life, multiple projects w...
A transcoding robust data hiding method for image communication applications Candan, Çağatay (2005-09-14) We present a data embedding method for image communication applications. Our goal is to implement novel multimedia applications such as multi-language captions, interactive programming and title specific features over the existing image communication channel. To this aim, we present a data embedding method for JPEG images which has the desired degree of robustness to transcoding or bitrate adjustments that may take place in the communication channel. The described system is designed for JPEG images but can ...

Citation Formats

U. Halıcı, “A graph based method for database concurrency control,” 1991, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/56842.