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  • Will Online Learning Save Higher Education (and does it need saving)?

    - by user739873
    A lot (an awful lot) of education industry rag real estate has been devoted to the topics of online learning, MOOC’s, Udacity, edX, etc., etc. and to the uninitiated you’d think that the education equivalent of the cure for cancer had been discovered. There are certainly skeptics (whose voice is usually swiftly trampled upon by the masses) who feel we could over steer and damage or destroy something vital to teaching and learning (i.e. the classroom experience and direct interaction with human beings known as instructors), but for the most part prevailing opinion seems to be that online learning will take over the world and that higher education will never be the same. Now I’m sure that since you all know I work for a technology company you think I’m going to come down hard on the side of online learning proselytizers. Yes, I do believe that this revolution can and will provide access to massive numbers of individuals that either couldn’t afford (from a fiscal or time perspective) a traditional education, and that in some cases the online modality will actually be an improvement over certain traditional forms (such as courses taught by an adjunct or teaching assistant that has no business being a teacher). But I think several things need immediate attention or we’re likely to get so caught up in the delivery that we miss some of the real issues (and opportunities) around online learning. First and foremost, we’ve got to give some thought to how traditional information systems are going to accommodate thousands (possibly hundreds of thousands) of individual students each taking courses from many, many different “deliverers” with an expectation that successful completion of these courses will result in credit at many or most institutions. There’s also a huge opportunity to refine the delivery platform (no, LMS is not a commodity when you are talking about online delivery being your sole mode of operation) as well as the course itself by mining all kinds of data from the interactions that the students have with the material each time they take it. Social data analytics tools will be key in achieving this goal. What about accreditation (badging or competencies vs. traditional degrees)? And again, will the information systems in place today adapt to changes in this area fast enough? The type of scale that this shift in learning could drive has the potential to abruptly overwhelm just about every system in place today in higher education. I would like to (with a not so gentle reminder) refer you back to a blog entry I wrote when I first stepped into my current role at Oracle in which I talked about how higher ed needs an “Oracle” more than at any other time in it’s evolution (despite the somewhat mercantilist reputation it has in some circles). There just aren’t that many organizations that can deliver the kinds of solutions “at scale” that this brave new world of online education will demand. The future may be closer than we think. Cole

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  • What is the runtime of this program

    - by grebwerd
    I was wondering what the run time of this small program would be? #include <stdio.h> int main(int argc, char* argv[]) { int i; int j; int inputSize; int sum = 0; if(argc == 1) inputSize = 16; else inputSize = atoi(argv[i]); for(i = 1; i <= inputSize; i++){ for(j = i; j < inputSize; j *=2 ){ printf("The value of sum is %d\n",++sum); } } } n S floor(log n - log (n-i)) = ? i =1 and that each summation would be the floor value between log(n) - log(n-i). Would the run time be n log n?

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  • How do I set my environment up for TopCoder?

    - by Nils
    I tried out TopCoder today. While I liked the problem, the Java editor didn't work for me. The remote compiling time and the lack of unit tests also made it difficult to complete the task. I ended up coding the solution in Eclipse and the pasting it into the TopCoder window. I tried out EclipseCoder, but it didn't suit my needs either. What tools do you use and how do you hook up your development environment with TopCoder? How does TopCoder handle submissions, and is there any way to speed up the time it takes to process them?

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  • removing an ssrs instance from a scale-out deployment

    - by Alex Bransky
    If you're like me you had at one time connected one of your Reporting Services instances to a report server database that was already in use by another instance.  This allows the instance to show up in the Scale-out Deployment section of the Reporting Services Configuration Manager.  My problem was that the server that got joined to the original server was no longer available as it had been repurposed, and when I clicked Remove Server to remove it from my scale-out it would fail because it couldn't contact the server.  After searching for a solution for quite some time I decided to look around in the report server database tables, and voila!  All I had to do was remove the old server from the Keys table.  I can't guarantee there won't be any side effects to this method, but it worked like a charm for me.

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  • how to replace windows 7 completely and repair grub

    - by sud
    I am trying to install ubuntu on HP probook 4530s x64 system. there is windows 7 already installed and i want to remove it. so i format C:\ drive and make to partation \ (sha2) and swap (sha4) from it. there is also a partation sha1 (300mb) for MBR (don't know what is it) i just leave it. after some time i get fatal error unable to install grub. and so i choose partation sha1 when it ask. no at boot time there is option to choose windows 7. and not for ubuntu and windows is also removed. i also try to install grub form other answers but no success. how to replace windows completely and where to install grub and what to do with 300mb (MBR).

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  • Roanoke Code Camp 2014

    - by Brian Lanham
    Originally posted on: http://geekswithblogs.net/codesailor/archive/2014/05/18/156407.aspxI had a great time yesterday at Roanoke Code Camp!  Many thanks to American National University for the venue, the code camp staff and volunteers, the other speakers, and of course the attendees who made my sessions interactive.  I learned a lot yesterday and it was a good time all around. I attended sessions on Apache Cassandra by Dr. Dave King (@tildedave), Angular JS by Kevin Israel (@kevadev), and JavaScript for Object-Oriented Programmers by Joel Cochran (@joelcochran).  I regret I was unable to attend all the sessions. I also had the opportunity to present.  I spoke on Redis and got some people excited about graph databases by talking about Neo4j.  You can find my slides and other materials at the following links: My Presentation Materials Folder Redis Materials – Slides     - Snippets Neo4j Materials – Slides     - Snippets If you have any trouble getting any of the materials just respond to this post or tweet me @codesailor and I will make sure you get the information you need.

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  • Google Games Chat #6

    Google Games Chat #6 Google Games Chat is back once again. What kinds of crazy topics will be talking about this time around? Will Todd ever finish Skyrim? What Google employee and/or homeless person is sleeping behind the couch this week? Tune in and find out! Ask us questions in the moderator link! We might even get around to answering them! From: GoogleDevelopers Views: 0 0 ratings Time: 00:00 More in Science & Technology

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  • Which online/hosted bug tracking tool do you use for your own work and projects?

    - by blueberryfields
    I've accumulated a lot of side projects over the years, which I slowly improve on over time. Whenever I return to one, I take some time reading over text files that include design, recent bugs, next features, etc... that I should be working on - it's not pretty. I'm looking to switch to something more formal. Ideally, this would be a full featured, online, bug tracking system, which allows for free or nearly free bug tracking for my own projects. Also, ideally this would be doable in a private manner - I don't really want everyone to see my side projects and what a mess I've made of some of them.

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  • .NET Reflector Open Source Alternative

    - by bconlon
    When I found out yesterday that one of my top 5 development tools .NET Reflector will no longer be free at the end of February, I thought I'd see if work had started on a good open source alternative...and guess what...work on ILSpy is already well underway!! There seems to be a difference of opinion on what Red Gate said when they purchased .NET Reflector from Lutz Roeder in 2008. They say that they would try to keep it free, where as others think they promised to keep it free. Either way at the time I thought it was a smart purchase by Red Gate as it would raise their profile overnight within the .Net community. But not only are they going to charge $35 for v7 (which is up to them), they have also time-bombed v6 to force users to pay. This I think will lower their profile overnight within the .Net community!! Maybe they are been slightly naive in thinking the community wouldn't just write an alternative?  #

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  • GDD-BR 2010 [1C] Google Web Tookit: What it is, How it Works and Deeper Dives

    GDD-BR 2010 [1C] Google Web Tookit: What it is, How it Works and Deeper Dives Speaker: Chris Ramsdale Track: Cloud Computing Time slot: C [12:05 - 12:50] Room: 1 Level: 151 If you're like the rest of us, at some point in your web app development you've wondered if there was an easier solution. One that includes built-in debuggers, code refactoring, reliable syntax highlighting, etc. After all, why should the server-side and desktop programmers get all of the good tools? The good news is that with Google Web Toolkit (GWT) you do have access to these tools. And in this session, Chris Ramsdale will get you up and running with GWT, including what it is, how it works, and deeper dives into generators, native Javascript interop, and compiler optimizations. From: GoogleDevelopers Views: 1 0 ratings Time: 35:02 More in Science & Technology

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  • Is there a size limit when using UICollectionView as tiled map for iOS game?

    - by Alexander Winn
    I'm working on a turn-based strategy game for iOS, (picture Civilization 2 as an example), and I'm considering using a UICollectionView as my game map. Each cell would be a tile, and I could use the "didSelectCell" method to handle player interaction with each tile. Here's my question: I know that UICollectionViewCells are dequeued and reused by the OS, so does that mean that the map could support an effectively infinitely-large map, so long as only a few cells are onscreen at a time? However many cells were onscreen would be held in memory, and obviously the data source would take up some memory, but would my offscreen map be limited to a certain size or could it be enormous so long as the number of cells visible at any one time wasn't too much for the device to handle? Basically, is there any memory weight to offscreen cells, or do only visible cells have any impact?

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  • How to had operation with character/items on binary with concrete operations on C++?

    - by Piperoman
    I have the next problem. A item can had a lot of states: NORMAL = 0000000 DRY = 0000001 HOT = 0000010 BURNING = 0000100 WET = 0001000 COLD = 0010000 FROZEN = 0100000 POISONED= 1000000 A item can had some states at same time but not all of them Is impossible to be dry and wet at same time. If you COLD a WET item, it turns into FROZEN. If you HOT a WET item, it turns into NORMAL A item can be BURNING and POISON Etc. I have try to set binary flags to states, and use AND to set operation to combine different states, checking before if is possible or not to do it, or change to another status. Exist a concrete patron to solve this problem efficiently without had a interminable switch that check every states with everynew states? It is relative easy to check 2 different states, but if exist a third state it is not trivial to do.

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  • How to prevent certain applications from accessing the internet?

    - by Arun Haridas
    I want to prevent certain applications from accessing the internet. When I was using windows XP I had an application (i think it was Zone alarm) which always notified me when an application tried to access the internet. I wonder if there is an application in Ubuntu which would do the same task. If it is possible, please suggest a gui application. the problem is, my internet provider allows me to connect to a single host at a time, that means no two applications can use internet at the same time. When i checked system monitor it showing me that internet is working fine still my browser cant browse.So i want to kill the other application using the internet to browse.

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  • easy visualization of usage statistics (web app)

    - by sova
    I have some usage queries for my web app's database, the results of which I want to display graphically. Is there an easy-to-use api that exists for this purpose? I want to show things like average query-time per user (a small user-base), average query time per day, and things like that. I think it would be cool to show these on a two-axis graph. I am displaying this data on my site, so a jQuery/javascript/html solution for rendering information into graphs would be ideal. Thank you :) P.S. I wasn't sure if I should ask this on SO, but I am looking more for which product to use, not how to program with it.

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  • Ubuntu 12.04 lts cannot build a wireless connection

    - by Jupiterr
    Hi i just got a new notebook and it came with ubuntu 12.04 lts operation system. But it can't make a wireless connection. I plugged in my Ethernet cable and i can reach the Internet with it but I need wireless connection so much. This is the first time I'm using ubuntu so i'm really confused. I can see wireless networks (including mine) but i cannot use them. It seems like it's establishing a connection but soon it gives up. Please help, I don't have much time for this and I do not have any idea about operation systems.

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  • [EF + Oracle] Intro

    - by JTorrecilla
    Prologue I have a busy personal and working time, and at this moment that I start to get more free time, I decided to start a Serie about Entity Framework with Oracle. A few time ago, I got my first experience with EF and Oracle with Oracle 10 g express and Oracle 10 g with the same results, Doesn’t work. Now I download Oracle 11 g to Test again. Tools To start using EF with Oracle we need the following: 1. Visual Studio 2010. No Express Edition 2. Oracle 11g 3 Oracle Driver for EF (ODAC) Intro People, who are starting with EF developments, I recommend to take a look into Unai Zorrilla’s Blog, the post were written in Spanish but they are great! To this Serie, we are going to define the DB from the Oracle administrator. For that we need to follow the next steps: 1. Create a User with a PassWord. In my example the user will be Jtorrecilla 2. Create a TableSpace 3. Define some example tables   (Image1) When we have created the DB, we are going to start a new project in VS 2010. I will start a C# Project. To start with EF, we need to add a new objet to our Project “ADO .NET Entity Data Model". (Image2) The next step will be to indicate that our model will be based on an existing DB, and indicate the connection string (Images 3 and 4): (Imagen3) (Imagen4) Once we selected the connection string, we will need to indicate that in the connection will be saved “Sensitive” data (Image 5), and in the next step we are going to select the DB objets to use in the project(Image 6).   (Image 5) (Image 6) A the end of the selection, we will press Finish button, and it will generate a EDMX file to add to our solution, and in the IDE will appear the DB Schema with the selected Tables and Relations. (Imagen7) One Entity is composed by a set of properties (each matches with a column from the Table in the DB) and Navigation Properties that represents any relation with other Entities.   Finally With this chapter we have installed the environment, defined a DB and configured the solution to start using EF with Oracle. In the next chapter we are going to see What is a Entity and how it works. I hope you enjoy this Serie!

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  • How to render a retro-like pixel graphics from 3d models?

    - by momijigari
    I was wondering if there's a possibility to render a retro-pixel-like graphics from 3d model in real time? I'm talking about the Starfarer-like graphics. I know it's hand drawn, and it's 2d. But if I need a 3d objects with the same aesthetics? I'm currently working with Flash. But I don't need any ready-solutions, I just want to understand the principle from any other platform if there is one. So if anybody met anything like this I would appreciate your help. (If it's not possible to do in real time, I could at least pre-render a sequence of sprites. It would be much better than creating hundreds of hand-drawn ones)

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  • Help with Strategy-game AI

    - by f20k
    Hi, I am developing a strategy-game AI (think: Final Fantasy Tactics), and I am having trouble coming up for the design of the AI. My main problem is determining which is the optimal thing for it to do. First let me describe the priority of what action I would like the AI to take: Kill nearest player unit Fulfill primary directive (kill all player units, kill target unit, survive for x turns) Heal ally unit / cast buffer Now the AI can do the following in its turn: Move - {Attack / Ability / Item} (either attack or ability or item) {Attack / Ability / Item} - Move Move closer (if targets not in range) {Attack / Ability / Item} (if move not available) Notes Abilities have various ranges / effects / costs / effects. Each ai unit has maybe 5-10 abilities to choose from. The AI will prioritize killing over safety unless its directive is to survive for x turns. It also doesn't care about ability cost much. While a player may want to save a big spell for later, the AI will most likely use it asap. Movement is on a (hex) grid num of player units: 3-6 num of ai units: 3-7 or more. Probably max 10. AI and player take turns controlling ONE unit, instead of all at the same time. Platform is Android (if program doesnt respond after some time, there will be a popup saying to Force Quit or Wait - which looks really bad!). Now comes the questions: The best ability to use would obviously be the one that hits the most targets for the most damage. But since each ability has different ranges, I won't know if they are in range without exploring each possible place I can move to. One solution would be to go through each possible places to move to, determine the optimal attack at that location - which gives me a list of optimal moves for each location. Then choose the optimal out of the list and execute it. But this will take a lot of CPU time. Is there a better solution? My current idea is to move as close as possible towards the closest, largest group of people, and determine the optimal attack/ability from there. I think this would be a lot less work for the CPU and still allow for wide-range attacks. Its sub-optimal but the AI will still seem 'smart'. Other notes/questions: Am I over-thinking/over-complicating it? Better solution? I am open to all sorts of suggestions I have taken a look at the spell-casting question, but it doesn't take into account the movement - so perhaps use that algo for each possible move location? The top answer mentioned it wasn't great for area-of-effect and group fights - so maybe requires more tweaking? Please, if you mention a graph/tree, let me know basically how to use it. E.g. Node means ability, level corresponds to damage, then search for the deepest node.

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  • Making retro games: Any good known game architectures?

    - by A.Quiroga
    I'm trying to do a remake of Snowbros . I'm doing it using libgdx but at each time i must try to thought how things got done . For example the physics of the jump and collisions . It seams to be time perfect , but i use the deltaTime to try to aproximate the value in game . I think in this case maybe its using some calcs with processor Hz , but i don't know. Then the simple question , is there any resources of how did they programm this games? Or any idea of the simple ideas repeated each game to game in the old style retro games.

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  • Do you count a Masters in CS as a negative? [closed]

    - by Pete Hodgson
    In my experience interviewing developers I feel like candidates who've achieved a Masters in Comp Sci tend to be worse programmers on average that those who don't have a Masters. Is that just me, or have others noticed this phenomenon? If so, why would that be the case? UPDATE I appreciate the thoughtful comments. I think I should have been clearer in the comparison I'm making. Given two candidates who graduated from college around the same time, someone who went on to gain a Masters seems on average to be a worse programmer than someone who spent all their time in industry.

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  • Cursor freezes for 5 secs every now and then

    - by user20560
    I've installed Ubuntu 11.04 (64bit) on my new Thinkpad Edge 11 laptop from Lenovo with the following specs: Processor type AMD Athlon II Neo Processor Speed 1.8 GHz Memory Type DDR3 SDRAM RAM 2048 MB Hard Drive Type HDD Harddisk 250 GB Grafic processor ATI Mobility Radeon HD 6310 Ubuntu has found all my hardware and it works perfectly. I have one irritating problem though: From time to time (sometimes every minute, other times every hour)the cursor freezes for about 5 sec. This happens independently from the number of processes running on the laptop. It's only the cursor that freezes - I can still tab between windows and use the keyboard. I've installed GPointingDeviceSettings, activating the trackpoint, which btw works perfectly. Also I have installed the ATI Catalyst proprietary display driver. Anyone has an idea of whats wrong? Thank you in advance Best regards, Jens

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  • How to have operations with character/items on binary with concrete operations on C++?

    - by Piperoman
    I have the next problem. A item can have a lot of states: NORMAL = 0000000 DRY = 0000001 HOT = 0000010 BURNING = 0000100 WET = 0001000 COLD = 0010000 FROZEN = 0100000 POISONED= 1000000 A item can have some states at same time but not all of them Is impossible to be dry and wet at same time. If you COLD a WET item, it turns into FROZEN. If you HOT a WET item, it turns into NORMAL A item can be BURNING and POISON Etc. I have tried to set binary flags to states, and use AND to combine different states, checking before if it is possible or not to do it, or change to another status. Does there exist a concrete approach to solve this problem efficiently without having an interminable switch that checks every state with every new state? It is relatively easy to check 2 different states, but if there exists a third state it is not trivial to do.

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  • I love video games and know I want to work in the sector but hate programming

    - by normyp
    I just hate how I'll put in 8-10 hours in and get little to nothing back. The return results for your efforts seem to be pathetically small the majority of the time and I don't find that rewarding enough for me to put in the time and effort to learn programming and make myself better. I've heard game design is fun and I think I'd love that but apparently you can only get into that really if you can program, is that true? I feel a bit lost because I'm doing a degree in Games Technology and am worried that I'm sending myself into a job I'll hate.

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  • Tips or techniques to use when you don't know how to code something?

    - by janoChen
    I have a background as UI designer. And I realized that it is a bit hard for me to write a pieces of logic. Sometimes I get it right, but most of the time, I end up with something hacky (and it usually takes a lot of time). And is not that I don't like programming, in fact, I'm starting to like it as much as design. It's just that sometimes I think that I'm better at dealing with colors an shapes, rather than numbers and logic (but I want to change that). What I usually do is to search the solution on the Internet, copy the example, and insert it into my app (I know this is not a very good practice). I've heard that one tip was to write the logic in common English as comment before writing the actual code. What other tips and techniques I can use?

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