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CodeKata
(This is a long one, but it does have a point…) This all starts with the way RubLog does searching (but it isn’t an article about searching, or about bit twiddling. Trust me). Because I eventually want to use cosine-based comparisons to find similar articles, I build vectors mapping word occurrences to each document in the blog. I basically end up with a set of 1,200-1,500 bits for each document. To implement a basic ranked search, I needed to be able to perform a bitwise AND between each of these vectors and a vector containing the search terms, and then count the number of one-bits in the result.Project Euler
What is Project Euler? Project Euler is a series of challenging mathematical/computer programming problems that will require more than just mathematical insights to solve. Although mathematics will help you arrive at elegant and efficient methods, the use of a computer and programming skills will be required to solve most problems. The motivation for starting Project Euler, and its continuation, is to provide a platform for the inquiring mind to delve into unfamiliar areas and learn new concepts in a fun and recreational context. Who are the problems aimed at?
videotutor
Structure and Interpretation of Computer Programs, Video Lecture
Structure and Interpretation of Computer Programs has been MIT's introductory pre-professional computer science subject since 1981. It emphasizes the role of computer languages as vehicles for expressing knowledge and it presents basic principles of abstraction and modularity, together with essential techniques for designing and implementing computer languages. This course has had a worldwide impact on computer science curricula over the past two decades.