mikos - Developer IT

Lucene - querying with long strings

- by Mikos

I have an index, with a field "Affiliation", some example values are: "Stanford University School of Medicine, Palo Alto, CA USA", "Institute of Neurobiology, School of Medicine, Stanford University, Palo Alto, CA", "School of Medicine, Harvard University, Boston MA", "Brigham & Women's, Harvard University School of Medicine, Boston, MA" "Harvard University, Cambridge MA" and so on... (the bottom-line being the affiliations are written in multiple ways with no apparent consistency) I query the index on the affiliation field using say "School of Medicine, Stanford University, Palo Alto, CA" (with QueryParser) to find all Stanford related documents, I get a lot of false +ves, presumably because of the presence of School of Medicine etc. etc. (note: I cannot use Phrase query because of variability in the way affiliation is constructed) I have tried the following: Use a SpanNearQuery by splitting the search phrase with a whitespace (here I get no results!) Tried boosting (using ^) by splitting with the comma and boosting the last parts such as "Palo Alto CA" with a much higher boost than the initial phrases. Here I still get lots of false +ves. Any suggestions on how to approach this? If SpanNearQuery the way to go, Any ideas on why I get 0 results?

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Solrnet /ASP.NET sample without MVC

- by Mikos

I am trying to get a handle on Solrnet and interacting an ASP.NET site with a Solr server. However, the sample app (on the code repository) is MVC based ,does anyone know of a version in plain vanilla ASP.NET? Thanks

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Using base64 encoding as a mechanism to detect changes

- by Mikos

Is it possible to detect changes in the base64 encoding of an object to detect the degree of changes in the object. Suppose I send a document attachment to several users and each makes changes to it and emails back to me, can I use the string distance between original base64 and the received base64s to detect which version has the most changes. Would that be a valid metric? If not, would there be any other metrics to quantify the deltas?

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Scribd style document rendering on ASP.NET

- by Mikos

Hi, I have large documents (HTML or Text) (think legal documents/regulatory documents etc.) that need to made readable i.e. paged, with some rich-text markup, allowing user highlighting and annotation etc. I was thinking of using a Scribd style rendering or as on Secwatch.com (see here). Any thoughts how I can go about it? We are on ASP.NET.

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Programmatically Submit form and loop through paging (C#.NET)

- by Mikos

I need to write a custom web-scraper to mine some data. ?I know how to submit a form using HttpWebRequest class Post method. My challenge is to loop through the resulting pages and retrieve the records from each page. Does anyone have a code sample or article to point to? Thanks

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Clustering F/OSS Library for .NET

- by Mikos

Anyone aware of F/OSS library for clustering algorithms? Specifically interested in Hierarchical Clustering. Surely there are some libs available, not requiring writing up from scratch.

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Sort a 2D Points List (first by X and then Y)

- by Mikos

I am trying to sort a List of 2D Points first by x co-ordinate and then by y co-ordinate. I implemented the IComparer interface as follows: class PointComparer : IComparer<Point> { public int Compare(Point x, Point y) { if (x.Y != y.Y) { return x.Y - y.Y; } else { return x.X - y.X; } } } And then call my sorting as follows: pointsList.Sort(new PointComparer()); For some reason the list doesn't sort. Surely is something very simple and silly, but stuck on this for quite a while....TIA

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