A generalized concept is presented for all of the commonly used methods of forest sampling. The concept views the forest as a two-dimensional picture which is cut up into pieces like a jigsaw puzzle, with the pieces defined by the individual selection probabilities of the trees in the forest. This concept results in a finite number of independently selected sample units, in contrast to every ot...

We extend the jigsaw percolation model to analyze graphs where both underlying people and puzzle graphs are Erdös-Rényi random graphs. Let pppl and ppuz denote the probability that an edge exists in the respective people and puzzle graphs and define peff = ppplppuz, the effective probability. We show for constants c1 > 1 and c2 > π /6 and c3 < e −5 if min(pppl, ppuz) > c1 logn/n the critical ef...

The purpose of this paper is to do a general survey on the existing communication modes inside a smart grid, the existing security loopholes and their countermeasures. Then we suggest a detailed countermeasure, building upon the Jigsaw based secure data transfer [8] for enhanced security of the data flow inside the communication system of a smart grid. The paper has been written without the con...

Intelligent human robot cooperation still is a challenging field of research. At the Institute of Process Control and Robotics at the University of Karlsruhe we intend to use an anthropomorphic robot to learn how to solve a children’s jigsaw puzzle together with a human tutor. Instead of choosing a straight forward engineer’s approach, we have decided to combine a psychologist’s and a computer ...

Penelitian ini bertujuan untuk menguji penerapan model pembelajaran kooperatif tipe Jigsaw dalam menjelaskan hasil belajar standar kompetensi akhlak tercela mata pelajaran Pendidikan Agama Islam (PAI) pada siswa kelas XI IPS2 di SMA Negeri 1 Rasau Jaya. Model dipilih sebagai pendekatan yang efektif dan inovatif tercela. Dalam ini, bekerja kelompok kecil menguasai materi secara mendalam, kemudia...

The noise level distribution owing to only a non-stationary working objective machine has been stochastically expressed by reflecting the temporal change of distribution parameters under a generalized regression model especially with aid of the vibration level observation. The proposed method has been applied to a noise evaluation of non-stationarily operated jigsaw. key words: non-stationary n...

The Puzzle Project is an interactive software system that solves jigsaw puzzles. The voice interface includes speech synthesis and word recognition. The attributes of the puzzle pieces are determined using image processing techniques and wavelet decomposition. Two algorithms are used to solve the puzzles: an expert system and fuzzy logic. This paper describes the steps required to find the solu...

Virion assembly represents an elaborate molecular jigsaw, coordinating numerous individual components to construct an infectious agent. For enveloped viruses, such as HIV, influenza and Herpes Simplex Virus-1 (HSV1), a vital piece of this puzzle is the acquisition of a membrane. Unlike viral proteins, this is not produced de novo, but derived directly from existing host membranes. The host’s se...

Assembling the DNA sequence jigsaw puzzle is no easy undertaking, and many computational techniques have been applied to date. Recent uses of evolutionary algorithms for this task have been based on rather misleading and inappropriate ideas, and have thus thrown unpromising results. It is the aim of this paper to emphasize the importance of selectively neutral mutations in generating successful...

Two hundred thirty-six students in 12th-grade physics classes took part in a quasiexperimental study comparing homogeneous and heterogeneous grouping in a jigsaw classroom. Students were assigned to expert groups according to their prior topic knowledge. Students showed higher intrinsic motivation, activated deeper level processing strategies, and performed better on their expert topic when wor...