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67 posts tagged with algorithm.

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67 posts tagged with algorithm.

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## Academic papers that describe 3D bin-packing algorithms?

I'd like to find academic papers that describe 3D bin-packing algorithms clearly enough to be implemented. In particular, I'm looking for algorithms suitable for packing 3D cuboid objects that can be rotated into known, pre-set bins. [more inside]

## A Human Sorting Algorithm

My mom has inherited my dad's 2,000 record albums, most of which are movie soundtracks. She is trying to decide whether to sell them or donate them, and step one is sorting and cataloging. They're not in any order. Is there some good way of alphabetizing them where they live, in a small room without lots of floor space to make piles? [more inside]

## Generating factual statements from data

Let's say I have a large set of time series. There are a large number of factual statements that could be made about it, including some that are trivially algorithmically generated (e.g. "Soy beans are appreciating in cost faster than corn"). Is there a term for generating statements like this?

## looking for a model for randomly selecting products online for survey

Hi - I'm not terribly tech-saavy, and I need to create a simple survey that looks at a number of products on Walmart.com. For my purposes I need the product selection to be random, although it would be ideal if I could choose x number of products per department. [more inside]

## Hiring a programmer for a clinical project?

I'm working with a professor of medicine, and she has a clinical decision algorithm that needs to be turned into a website with a database backend. We need to find a person. [more inside]

## Which algorithms changed the world?

A recent post to the blue proposed a set of equations that changed the word. As a computer professional, I'm curious, which algorithms transformed the world? [more inside]

## Knuth mixing bits

Which page of The Art of Computer Programming is the problem mentioned here? Does that problem ("find all ways to mix 3 zeroes with 3 ones") have a name?

## How to find totally, utterly random musical selections

I'm looking for a method, or algorithm, to identify completely random musical selections, across all genres (from Norwegian black metal to Renaissance madrigals to Pygmy chants). How can I do it, given that there is no single catalog that lists all music? [more inside]

## Poisoning the well of Facebook's facial recognition

I don't like that Facebook knows my face, so I'm tagging myself (and asking that friends tag me) in a lot of random photos. Does this work? Any tips to do this more efficiently? Is the algorithm already smart enough to detect that something fishy is going on?

## I'd like to know more about my phone's shuffle algorithm!

When on shuffle mode, do phones try to play songs which sound better next to each other? [more inside]

## One large flat rooftop, ah ah ah...

How would you go about getting an accurate count of the number of flat 3,000+ square meter rooftops in a city? [more inside]

## History Filter

Is there a statistical measure that I can rely on in evaluating papers or articles in a historical subject? If you teach history, what measure would you rely on in evaluating student papers and take-home exam essays for plagiarism? [more inside]

## Tired of eating plates of beans as a salad course

Can you give me step-by-step instructions on how to pick out salad ingredients after arriving at a supermarket or farmer's market? [more inside]

## Recommend a programmer a book that teaches high school maths step by step

Can you recommend a programmer a book that teaches high school maths step by step? I did maths at high scool and I was OK at it. However, fifteen years later, after forgetting almost all the maths I learnt back then, I am diving deep into the theory of programming algorithms (sorting, tree structures, graph algorithms and so forth). I find the programming straight forward, but I am struggling with the theory and proof of algorithmic time and space complexities. I am looking for a book that will cover algebra, logs, limits, inductive proof, matrix manipulation and so forth. [more inside]

## On rituals and algorithms

What is the relationship between the ritual and the algorithm? Are all rituals algorithmic? [more inside]

## Help me track myself, or: 23.2% chance of the East Village

How can I write an algorithm that predicts my future location? [more inside]

## How do I get the old Google search results back?

So, it would appear that Google have changed their search algorithms. Using search queries that would have previously returned hundreds of results I am getting a handful of results which are mostly irrelevant / gibberish. Any ideas how I can go back to the "old" Google? Thanks!

## Rating site for baby name recommendations?

I'm looking for the Pandora or Netflix of baby names. I want a recommendation engine that will let me rate or rank potential names and then offer suggestions based on what I liked. [more inside]

## What's an effective, but easy-to-implement, ranking/ladder algorithm?

What's an effective, but easy-to-implement, ranking/ladder algorithm? [more inside]

## Help me get random numbers by mental arithmetic.

I would like a pseudo-random number generation algorithm that I can calculate in my head. [more inside]

## What software extracts sounds by humming them?

What's the software or academic paper that isolates sounds by humming them? I remember seeing a demonstration video of this where the narrator removed a phone ringing by imitating its trill. He also removed the guitar from the AC/DC song Back In Black. I think the title was "Isolating Sounds Via Frequency Matching" but my google-fu has failed.

## What looks good with #AFC398?

Programmers: know any good algorithms for picking colors, modifying colors or choosing colors that go well together? This is specifically for code.

**I'm NOT looking for apps that let you choose colors.**[more inside]## Faces

Newbie Graph Theory: How can I find all the faces of a planar undirected graph? Or, what I think is equivalent, all of the chordless cycles (cycles in which no two nodes are connected by any path other than a subset of the cycle) . [more inside]

## Mathfilter - Gaussian Curvature in Cylindrical Coordinates

Mathfilter - Need help with Gaussian curvature in cylindrical coordinates [more inside]

## How does StumbleUpon make money?

How does StumbleUpon really work (as a business and as web service)? [more inside]

## What do you call similarity calculation?

what do you call the science/math for calculating similarity between people based on survey results (like OK Cupid)? [more inside]

## How do I quanitify the number of people who did the work?

How do I accurately quantify the number of people who did the work? [more inside]

## Don't meet the same person twice (involves math ... somehow)

36 people total, meeting in groups of 6. After 5 minutes, the groups shuffle into completely new groups. How many "rounds" can we go without people meeting with someone they've already met? [more inside]

## I feel like phoning it in.

Looking for a downloadable poster generator that was on the net around six or seven years ago. You selected a style and provided text and it used an algorithm to create a poster in the style that was "hip" at the time. Background images featured urbanscapes and the like which would have looked right at home on a WILCO album cover. I may have actually seen it here first. Does it still exist? Is there a Mac version of it? If not, anything else like it today?

## West with the Night, or East or North or South

Posting for brand-new user mdonnahoo, who will answer any queries in the thread: I am writing a program to determine how much time in a flight from Point X to Point Y occurs at night for pilot logging purposes. Is there an elegant way to calculate this? [more inside]

## Writing a front-end

I'm looking to write a graphical front-end for a text-based data fitting and plotting program. Is it better to program an interface from scratch or write an extension for a plotting program such as Igor, Origin, Mathematica, etc.? [more inside]

## Hooooow Doooo Iiiii Eeeelooongaaaate Vooooowels?

How possible is it to elongate vowels in audio processing? [more inside]

## I am struggling with relatively simple algorithms. Am I doomed?

ProgrammingFilter: Just how lame is it that I can't come up with (create from scratch) a string matching algorithm? Can I still become a programmer? I need your honesty. [more inside]

## Magic Chord-O-Matic Machine!

I was playing around with a keyboard at a Guitar Center that had an auto-harmonize feature. Below a certain note pressing a key would play a chord instead of a single tone. What was interesting was that playing chromatically (white and black keys) it played chords that retained a firm sense of key (C major) - if you jumped around randomly or did chromatic runs it didn't sound like there were a bunch of modulations taking place. What formula do you think it used to do this?

## Calling all algorithm lovers!

I need help solving an interesting algorithm using 'C'! [more inside]

## How can I automatically split GPS tracklogs?

I have almost a year's worth of GPS track logs. I'd like to be able to automatically split them by trip type (walking, biking, car) and filter out some of the noise that gets generated when leaving the GPS on while stationary. [more inside]

## How to study/prep for Algorithms/Google Interviews?

Best ways to prep/study for CS Algorithm/Google style job interviews? [more inside]

## Math equation / algorithm for a database

I'm looking for some help with a math equation / algorithm I'm trying to create. I'm a programmer by trade and not very good at math so I'd like some help with this or perhaps a site where I could pay someone to come up with the equation I'm looking for. I considered rentacoder or elance however I'd be concerned if the companies there had the proper math knowledge. A lot of claims get made on those sites that turn out to be false. [more inside]

## Clustering techniques

What clustering technique to use? [more inside]

## Please help me sort this out

Sorting algorithm - how would you do this? [more inside]

## Fuzzy text completion algorithm?

I'm looking for a fuzzy text-matching algorithm for an autocomplete widget. [more inside]

## Learning Programming/Logic/Algorithms by Yourself (preferably practice programs to write)?

Im a Freshman Computer Engin. Major and I want to learn more programming/logic by myself. Any books/Resources/Sample Projects you might recommend? [more inside]

## How do you determine if a dfa is minimal

Is there an elegant algorithm to determine if a dfa is minimal? Obviously you can minimize a dfa and then check to see if the result is isomorphic to the original. Is there another way?

## What is this symbol that looks like an O with a small n or r in it?

## A brush-up on algorithms...

Imagine: You have an upcoming interview that will be heavily focused on algorithms (specifically computer language related but not a specific language). What resources would you turn to?

## Algorithm to display a schedule calendar with specific constraints

I've charged with adding a feature to a shift scheduler / coverage requestor that displays shift information for a given week. I've been able to display them so as to satisfy the constraints I've been given, but it's got me wondering wondering if there's a more rigorous/mathematical approach to the general problem of organizing the display of any such calendar information. [more inside]

## How to optimize desk assignments?

In the office we’ll be moving to soon, we’ll have about 50 desks, and almost that many workers to be assigned to them. How can we optimize who’s assigned to each desk so that as many workers as possible are as pleased as possible with their desk assignment? [more inside]

## Balls in boxes algorithm

Is there a standard ball picking algorithm? I have 10 balls that I want put in four boxes (A-D). Every box can hold zero to all balls. [more inside]

## AlgorithmFilter

How do you fairly score a pub quiz?
The quiz I run always has wildly varying team sizes - from one guy on his own to groups of eight or nine. It seems obvious to me that a sole participant who scores 95% has done better than a group of ten who score 100%, but I'd like an algorithm that will calculate a fair score for

**every**team. I've tried to create one using exemplar data but I just don't seem to be able to hit the right combination of terms. My basic data set consists of (number of team members) and (score out of 100). Any statisticians out there with a solution? Bonus points if the algorithm is easily understandable to the general public.## How can I find out if someone's already solved this (fairly specific) programming problem?

I have many short strings of varying lengths — between a dozen and a few hundred, most likely — and one long string. I need to write code that will find a way to assemble a copy of the long string using as few of the short strings as possible. If it's not possible to assemble a complete copy of the long string, it should assemble a copy with as few and as small gaps as possible. [more inside]

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