background preloader

תואר שני

Facebook Twitter

Network Science Book. The power of network science, the beauty of network visualization.

Network Science Book

Egypt’s Government Services Portal - Open Data Initiative. Metadata » Global Roads Open Access Data Set (gROADS), v1: Global Roads. Prof. Avi Parush, Big Data to Big Picture: Consider some fundamentals of human visual perception - iew News Letter. Some of you may say: I see circles.

Prof. Avi Parush, Big Data to Big Picture: Consider some fundamentals of human visual perception - iew News Letter

Some may say: I see circles of different sizes, or I see the colors red, blue, purple, and yellow. And those who take an extra second will say: I see circles of different colors. Nathan Zeldes - Thinker, Speaker, Problem Solver. Text Mining and Analytics - University of Illinois at Urbana-Champaign. About the Course This course will cover the major techniques for mining and analyzing text data to discover interesting patterns, extract useful knowledge, and support decision making, with an emphasis on statistical approaches that can be generally applied to arbitrary text data in any natural language with no or minimum human effort.

Text Mining and Analytics - University of Illinois at Urbana-Champaign

Detailed analysis of text data requires understanding of natural language text, which is known to be a difficult task for computers. However, a number of statistical approaches have been shown to work well for the "shallow" but robust analysis of text data for pattern finding and knowledge discovery. You will learn the basic concepts, principles, and major algorithms in text mining and their potential applications. HTML Tutorials for the Complete Idiot. Small Change. At four-thirty in the afternoon on Monday, February 1, 1960, four college students sat down at the lunch counter at the Woolworth’s in downtown Greensboro, North Carolina.

Small Change

They were freshmen at North Carolina A. & T., a black college a mile or so away. “I’d like a cup of coffee, please,” one of the four, Ezell Blair, said to the waitress. “We don’t serve Negroes here,” she replied. The Woolworth’s lunch counter was a long L-shaped bar that could seat sixty-six people, with a standup snack bar at one end. The seats were for whites. By next morning, the protest had grown to twenty-seven men and four women, most from the same dormitory as the original four. What Facebook's 'It's Not Our Fault' Study Really Means. Yesterday in the journal Science, members of the Facebook data science team released a provocative study about adult Facebook users in the US “who volunteer their ideological affiliation in their profile.”

What Facebook's 'It's Not Our Fault' Study Really Means

The study “quantified the extent to which individuals encounter comparatively more or less diverse” hard news “while interacting via Facebook’s algorithmically ranked News Feed. Learn Python - Free Interactive Python Tutorial. ‫מדריך לפייתון - חלק 1 הקדמה + משתנים Python Tutorial Hebrew‬‎ Python tutorial. Learn Python Through Public Data Hacking. Biographies. Dr. Ron Bekkerman: You've got a lot of data! Now what?!, Haifa University. Sheets - create and edit spreadsheets online, for free. LIBR 250 - Stripling/Pitts. Python. Plagiarism & the New Digital Frontier from Jen Carey on Edudemic. This post, written by Jen Carey, originally appeared on Edudemic.

Plagiarism & the New Digital Frontier from Jen Carey on Edudemic

Plagiarism, defined as the “wrongful appropriation” of another’s words or ideas, is a pervasive problem in schools. Many teachers and administrators believe that the internet has caused an explosion of academic dishonesty (a recent PEW survey of College Presidents would agree). While, most teachers and administrators are familiar with tools like turnitin that can catch plagiarism after the fact, there are some ways that educators can combat plagiarism before it starts! In the new digital frontier, we need to hold digital literacy at the forefront when teaching students how to use and incorporate material into their work. Journal of Information Literacy. Beall’s List of Predatory Publishers 2013. By Jeffrey Beall Released December 4, 2012 The gold open-access model has given rise to a great many new online publishers.

Beall’s List of Predatory Publishers 2013

Many of these publishers are corrupt and exist only to make money off the author processing charges that are billed to authors upon acceptance of their scientific manuscripts. Predatory Open Access Publishers. Background.

Predatory Open Access Publishers

‫עופר גביש בערוץ 10 טיול מזמר אל קברי צדיקים 1‬‎ Kuhlthau. Carol Kuhlthau. In the first stage, initiation, a person becomes aware of a gap in knowledge or a lack of understanding, where feelings of uncertainty and apprehension are common.

Carol Kuhlthau

At this point,the task is merely to recognize a need for information. Thoughts center on contemplating the problem, comprehending the task, and relating the problem to prior experience and personal knowledge. Actions frequently involve discussing possible avenues of approach or topics to pursue. In the second stage, selection, the task is to identify and select the general topic to be investigated and the approach to be pursued. Feelings of uncertainty often give way to optimism after the selection as been made and there is a readiness to begin the search. POST data. As We May Think.

As Director of the Office of Scientific Research and Development, Dr.

As We May Think

Vannevar Bush has coordinated the activities of some six thousand leading American scientists in the application of science to warfare. In this significant article he holds up an incentive for scientists when the fighting has ceased. He urges that men of science should then turn to the massive task of making more accessible our bewildering store of knowledge.