PSPP is a program for statistical analysis of sampled data. It is a Free replacement for the proprietary program SPSS, and appears very similar to it with a few exceptions. ·
"GeoGebra ist eine kostenlose dynamische Mathematiksoftware, die für SchülerInnen aller Altersklassen geeignet ist und auf allen Betriebssystemen läuft. GeoGebra verbindet Geometrie, Algebra, Tabellen, Zeichnungen, Statistik und Analysis in einem einfach zu bedienenden Softwarepaket, das bereits mehrere Bildungssoftware-Preise in Europa und den USA gewonnen hat." ·
Software developers are incessantly inundated with wave upon wave of offered solutions to their many pains (pains that are unfortunately and ultimately felt by their clients): third-generation languages, object-oriented programming, CASE tools, aspects, components, programming frameworks, extreme programming, and agile methods, to name just a few. Some of these solutions have indeed dramatically impacted how software is developed, while others have proved mere passing fads, never fulfilling the potential claimed for them. One of the more recent entries in this multitude is model-based software engineering (MBSE). From its emergence in the 1990s, this approach to software development along with its accompanying technologies have been promoted by advocates as game changers, promising quantum leaps in productivity and product quality. Following the initial excitement and hype generated around MBSE, its position in the limelight is now slowly fading, displaced by more recent cure-alls. While MBSE is being used in some enterprises, it is far from being the dominant software development paradigm that its proponents had hoped for. For many software professionals, its relevance and impact are unclear at best.
In this talk, Bran will first examine the essential precepts of MBSE and the value proposition claimed for it. Next, in order to understand the reality behind it – as opposed to the hype -- we will review the current industry experience with MBSE, based on thorough survey of published data. We conclude with a critical assessment of the real impact that MBSE has had to date, and what the future might hold for it. ·
Grace is a WYSIWYG 2D plotting tool for the X Window System and M*tif. Grace runs on practically any version of Unix-like OS. As well, it has been successfully ported to VMS, OS/2, and Win9*/NT/2000/XP (some minor functionality may be missing, though). ·
The CLEVER search engine incorporates several algorithms that make use of the Web's hyperlink structure for discovering high-quality information. It can be exceedingly difficult to locate resources on the World Wide Web that are both high-quality and relevant to a user's informational needs. Traditional automated search methods for locating information on the Web are easily overwhelmed by low-quality and unrelated content. Second generation search engines have to have effective methods for focusing on the most authoritative documents. The rich structure implicit in hyperlinks among Web documents offers a simple, and effective, means to deal with many of these problems. Additional Information: Publications: ·
Music21 is a set of tools for helping scholars and other active listeners answer questions about music quickly and simply. If you’ve ever asked yourself a question like, “I wonder how often Bach does that” or “I wish I knew which band was the first to use these chords in this order,” or “I’ll bet we’d know more about Renaissance counterpoint (or Indian ragas or post-tonal pitch structures or the form of minuets) if I could write a program to automatically write more of them,” then music21 can help you with your work. ·
Although computers have transformed how we listen to, obtain, compose, and notate music, they have not fundamentally changed how we research and analyze music. Though many computer databases have been created for musicology, they are not well adapted for sophisticated music queries. For instance, melodies can be found if exact matches exist. But melodic variations such as the repetition of a phrase or a change in embellishment are extremely common, yet cause searches to fail. More complex investigations, such as finding all melodies that imply a particular underlying harmony, can barely begin to be created with existing software packages. The lack of relevant software for analyzing music hampers scientific attempts to understand what we listen for and how we process what we hear; these activities are little understood despite music’s nearly universal presence in our daily lives.
The music21 project at M.I.T. will give to the music community the set of tools it needs to conduct sophisticated musical and statistical analysis using modern programming techniques. The software framework, written in Python, manipulates music as a collection of symbolic data, such as pitch names and note durations, that can then be classified as higher level musical structures according to the style, region, or period being studied.
Music21 focuses specifically on the manipulation of symbolic music data: it leaves to the many preexisting open-source and proprietary software packages the notation and audio playback of scores (the two areas where computer-aided music research is most developed). By focusing on the points of greatest need to musicology, the framework will give rapid results within a short timeframe. ·