skysight-inc/HackerNews huggingface dataset:
Searching an accurate sentiment analysis tool
Hi everybody,

I am looking for a sentiment analysis tool with high accuracy especially focused on short text such as tweets (but it's not mandatory). I searched a bit and I found a Quora question: https://www.quora.com/What-are-the-most-powerful-open-source-sentiment-analysis-tools

From their answers, I presume that there is no open source highly accurate system.

However, I haven't tried couple of promising systems yet:

http://www.sentimentanalysisonline.com/
http://tationem.com:8080/TexSIE/#working
http://help.sentiment140.com/api

If you've used these tools above, I appreciate if you give some feedback.

I tried a bunch of tools (some of them are not open source software) such as: Semantria (https://semantria.com/api), Stanford CoreNLP toolbox, Alchemist (http://goo.gl/NpQ8jy) and RapidMiner.

I tested them on a twitter dataset that I manually labeled with 3 sentiment classes (neutral, positive, negative). These are the scores: http://goo.gl/YH1oJq (I haven't add RapidMiner yet, sorry).

AlchemyAPI seems arguably the best among them but the performance is not well especially when predicting neutral tweets.

For the next step, I would like to evaluate their score on SemEval Sentimental Analysis dataset (http://alt.qcri.org/semeval2015/task10/) but I expect that the trend will be same. I also examined the best system's paper of SemEval 2014 SA task: http://goo.gl/OYjqux. I haven't replicated it and evaluated its score on the same data yet, though.

I am a bit sceptical to use an off-the-shelf solution since I can't optimise them or I can't shape it for my needs. I would like to start with an open source tool and improve it pre-processing/post-processing or introduce some features and so on.

Sentiment analysis is very popular subject not only for research but also for market. So I'll be very happy to see some recommendations, ideas or directions.

Sorry for such a long post.

Thank you
Elon Musk Says “Maybe a Thousand” Seattleites Will Help Him Colonize Mars
No offense to you or your firm, but fuck coupon codes. When I go to Trader Joe's for groceries, I work out what I want to eat and note the prices. When I make one of the occasional trips to Safeway I spend half my time trying to match up what I went there to buy with the particular coupon that's running this week or that my wife added to loyalty card, and more time attempting to decrypt my receipt after I get home to see if I succeeded.

Coupons are just a way of creating psychological anxiety about missing a good deal, an archetypal 'dark pattern'. That sort of thing actively drives people like me away from your business. I know I'm not a mainstream consumer, but IMHO neither is the average domain registrant.
"Being a dick is not an option or a negotiation tactic"

I disagree. Leaving is not "being a dick", it's looking out for yourself. If you don't, nobody else will. It's apparent this is the case with the OP: He was pretty much built the entire company up and was there for the company when they needed him (I would imagine late hours, weekends, etc).

Now that they don't need him anymore, they pushed him off to the side. I've heard this story 1000 times and experienced it first-hand.

I don't work for startups for exactly this reason. If I'm spending my life building your company, I better be getting 50% in equity. It's really not worth the fooseball table in the lunch room and the Red Bull in the fridge. This is why you need to get the young and naive to fill these roles.
Thanks I appreciate it. I do design and code yet I work with my friend Eric on everything. I think working with someone is good for your product and sanity :) We also got extremely lucky that Apple featured the game.
The problem with that is that it makes entirely too much goddamn sense.
</cynicism>

Also something about cops being in such constant terror and fear for their lives that criminals are constantly carrying around AR-15 gas powered rifles, that it's easier to catch them by surprise at home than to risk doing your job more humanely and end up with a 5.56 round in the chest.

Or something like that.

</Snark>
19 Minutes with Ansible
Completely tangential: can you please invite me to lobste.rs?
> Well, I refuse to believe anyone, no matter how debased, would intentionally throw a flashbang into a baby's crib

I can. In the extended circle of acquintances, two of the cops are the worst abusers of their families, children & wives, the are the most racists and full of hatred. One would enjoy showing others how he would spin his son by his hand while simultaneously kicking him in the back with his foot (granted this is not a US policeman, not that a US policemen are somehow qualitatively more noble).

I think there is link between saddism (enjoyment of inflicticting pain) and choosing to be that kind of a profession (just like there might be a link between wanting to help people and choosing to do it).
Very interesting and pretty ... and it does remind me of Celtic art.
> I don't see the need of assaulting a home.

it's almost always for drugs, where they'd be afraid the person could flush them down the toilet.
I think my main concern was and is:

Given this article, the discussion cannot avoid politics.
If we're assuming that political discussions might be sensitive and largely depending on your upbringing/local environment etc. etc. this leads to potential conflicts.

Technical (or commercial) posts are usually easier to digest and discuss. Posts like this seem to offer no sane way to handle them, or at least I don't see a way to do that myself.
> “If she hadn’t been selling illegal items out of the home, no warrant would have been served,” he said. “What you call extreme, we call safe.”

Disgusting. The militarisation of police is a blight on our societies progress. And now where I live is succumbing to it too, albeit far more slowly than what those in the US have to deal with. The fact that SWAT teams are using flash bangs and automatic weaponry to raid a woman's house for selling beer without a license blows my mind.

> Department officers testified that their general SWAT training included work with flashbangs even though it wasn’t formally recorded in department training logs.

In other words, they're lying to cover their asses again. Like police have never done that before. Disgusting.
It is fascinating that people look past that, it's far worse than Name+Cheap. I imagine it's due to the very large brand recognition they now possess.

When Google first launched and I tried referring friends to use it, as a superior search service to AltaVista et al., friends would give me a look of "what the hell?" due to the name. Back then it wasn't uncommon to see media stories referencing Google's childish / baby sounding name, and how it was a ridiculous name for a service, and that the logo made it come across even worse.
Read the guidelines on https://news.ycombinator.com/show for better exposure. Avoid linkbait titles. The title should be what the product is about.

Sorry, you asked me to be snarky. Your post will be seen by more users using Show HN.

P.S. HN isn't just 'guys' and 'dudes'
What's most amazing is how smug and unapologetic the involved LEOs are when they've been interviewed on camera about this incident. One can only hope that the video is accepted as evidence in the civil case and will add a significant multiplier to the damages awarded.
Having just watched the linked video, it sounds like there is only a clinically (as opposed to statistically) significant difference between SSRI's and placebos for the extreme end of severe depression.

One of the interesting points the speak made was:
The difference in response recovery rate between studies where the patients know they will receive an anti-depressant (drug vs. drug) and studies where they know they may recieve a placebo (drug vs. placebo) is bigger than the difference in recovery rate between drug and placebo. He then points out that due to side effects, patients are fairly reliably able to determine whether they are on a placebo or on an anti-depressant.

When discussing the equivalent efficacy of SSRIs and SSREs he says:
"Were there any truth in the serotonin model of depression, and I don't know any responsible researcher in the area who still contends there is. (It's only in marketing where you still see that talked about) Where there any truth to that, SSRE's should not help people recover from depression, it ought to make them depressed"
Link to time: https://www.youtube.com/watch?v=ISptt3CRAqc#t=1865

If that is correct, I think it might be valid to claim that " that the serotonin model of depression has been disproven" although I think "beyond a shadow of a doubt" seems hyperbolic. It might be also be argue that "the serotonin model of treating depression" might be clearer.
I've always kind of wondered why billionaires today don't follow the examples of Genghis Khan or King Solomon and have a thousand wives and thousands of kids.
Right, the goal is to convince marketers that the digital shadow and the meat casting that shadow are one and the same.
Amazon's new c4 instances: is the power worth the price?
The rub is:

* the OP will need to pay a lot to buy their vested options when they leave each company

* the fair market value of common stock will have probably increased so they'll also need to pay immediate income tax on every gain

* they likely won't have a market for their shares until acquisition or IPO (five to ten to never years)

* the shares they do have will be diluted 10x or more through Series A/B through F, and they won't benefit from readjusted new 4-year-vesting grants

* they'll learn a lot and profit little from serial startup monogamy
Unleash Your Inner Coffee Nerd
> Yes, some unfortunate historical choices there.

Do you know anything about the motivation of those choices? Surely it won't have escaped anyone's notice, especially not the designers', that this is a wart on the language, and that there is an easy solution; so I can only imagine that the easy solution was rejected for its inelegance—which seems strange, given the devotion to theoretical purity of the rest of the language. (I contrast the situation here to that of the numeric tower, which is clearly flawed but for which, even now, the 'right' approach is not so clear.)
> wouldn't be easier to wait until this person leaves the house, grab him on the street and tell him: "Hi mate, we are the police and now you are under arrest".

But then they wouldn't get to use all the paramilitary gear and act like they are some special Commando unit or something. They would be boringly waiting outside for hours and they just say "Hands behind your back, you are under arrest". That is absilutely not fun compared to busting door with a ram, throwing flashbang grenades, running around like idiots crouching and shouting at the top of their lungs like in video game, wearing cool full body bullet proof with kevlar elbow pads and so on.
Does anyone know if they support dynamic DNS on subdomains and is it RFC2136 compliant? For example, I have mydomain.com pointing to a standard server, but home.mydomain.com updated from pfSense to point to my dyn IP on namecheap.

As usual with Google, technical details are scant.
I think profanity is essential to self-expression, even more so at work than in a social setting, where I actually do try to exercise some restraint. This idea that profanity is somehow unprofessional is a new, and frankly, bewildering idea to me
Jesus... that's completely indefensible. Now, I don't live in the US, and I only see the bad stuff that happens through the media, but I truly can't see why the police need to do things this way...
Every single person ever booked for speeding would love to use this excuse I'm sure.
I wish I could say I'd planned that. Instead, I am reduced to marveling at the range of innuendo enabled by the network attack buttplug.
I agree. I think one of the worst things to happen to indie devs on mobile was the concept of the App Store(s) itself. When I open the App Store, my brain just...drifts off. Its a bunch of icons with little context. It's like looking at the rack of magazines and trinkets while you checkout at the grocery store.

While Moore's Law marches on, I'm hoping the days of AAA titles for mobile are just around the corner. It's true - I suppose I'm not willing to pay even 0.99 for some generic platformer or cutesy puzzle game. I would be willing, however to pay 20+ dollars if someone could give me something close to say, Fallout 3 for my phone though.
Where do you think Perez is wrong? Have you fleshed out your refutation on your blog? Awesome blog, BTW. Great find for me this year.
There will NEVER be accountability as long as the conflict of interest remains where police actions are investigated by a prosecutor that relies on these same police for him to do a successful job.
Isn't that just a band-air for the real problem, which is the general culture of infalibility at many police departments and the shocking lack of training in light of the fact that they've been given military grade toys?
Not quite. Big-O creates an -upper bound-. It could be the upper bound of the best case, the average, or the worst case. (So, for example, one can say quicksort has worst case performance O(n^2) but an expected performance of O(n log n))
If that turns out to be a bit slow, there's always StackSort:

http://gkoberger.github.io/stacksort
Sharding via a Tweet Storm(TM).
I don't think they care. This has been in beta for a while. They probably figure people will get used to it.
Well, if it makes you feel any better, I heard he got fired ... eventually.
As I understand it, this is part of the war-on-drugs mindset. Since possession of even minor quantities of drugs can result in severe sentences, they assume offenders will be as violent as anyone receiving such sentences.
This tangent might sound mean but I often wished there was some glassdoor-like site or startup for shaming bad behavior, especially lying. Starting with rental agents.

If you stuck to reporting facts, how would that put you in danger?
A Quick Comparison of Nim vs. Rust
Oh significantly so, but more recently because of watching the BBS Documentary by Jason Scott (highly recommend). But I don't intend to finish this project as a game; it's just a creative outlet. I've always been fascinated by the magical simplicity of the 6502 and related machines, even if they were a few years before my time. A few years ago I even implemented a logic accurate 6502 in Verilog for an FPGA devboard. Working with the 6502 is peaceful in a way; it lies in stark contrast to the towering complexity we as engineers deal with in the present computing age.

I wonder what became of 0x10C after Notch dropped it. Has anyone picked it up and kept working on it? Alternatively, I know Space Engineers is similar in kind, and was quite a bit of fun to play. It just doesn't (or didn't?) have any computing component.
The painful thing I've found with this is that it leaves myname@gmail.com as a valid email address. So there I am signing up for other services with myname@mydomain.com and meanwhile some typo-ridden fool in the US keeps signing up myname@gmail.com instead of theirname@gmail.com and I end up receiving their hotel receipts, iTunes receipts, etc.

Very few of those services have a good way of dealing with "No, that wasn't their email address they signed up with, it was an alias of mine". And while for some of these, I could presumably click the "forgot password" link and go into their account, I'm not sure that would be legitimate and wouldn't know what their correct email was to change it.
MITM certainly can see everything, and employers do it: http://it.slashdot.org/story/14/03/05/1724237/ask-slashdot-d...
I'm guessing their lawyers have told them not to apologize (show apathy), as it may actually be worse for them in the civil suit.
How Do We Grow to Like the Foods We Once Hated?
Neat! I love how the demos are inline with the exposition and code, and it's striking how little code is necessary to make things go.

That said, this paragraph struck me as a great illustration of why I tend to prefer procedural layout systems to declarative ones, at least in production code:

Also note that there's slip! If you drag from the middle of the box, you'll see that the part of the image you grabbed slips out from under your finger. That's because the manipulator is just operating on the box's y coordinate. If we wanted to avoid slip then we'd have to create a new variable when the finger goes down, relate it to y (that is, fingery = box.y - 123 times scale, based on the current scale and finger start position) and then manipulate fingery instead of box.y. This isn't very hard, but the current manipulator code doesn't support it.

There will always be some situation the layout system's designer didn't predict. With procedural layout, you can write the procedure yourself. With declarative or constraint-based layout, you're stuck, since there's no way to express your special case in the limited language provided. Declarative systems are great for demos or rough prototypes, but when you want full control, there's no substitute for the power of procedural code, IMO.
Hey Dog, here's my first video. Will it go Viral? Let's see, woof woof
For the conscientious observer I think this is the best approach to take. I lived in VT for a while where it was very easy to support local, organic farms and where I am now I frequent the small organic food shop for my needs.

For those of us fortunate enough to be able to afford to spend a bit more on food, I think its a wonderful means of helping move the needle in the right direction.

For me personally, its just nowhere near enough. I've gone so far as offering to invest in farm land for friends who were interested in trying out sustainable farming practices (they ended up not finding land convenient enough and moved on to other endeavors) .
Sure some games have been released to the public.

There are a lot of the original creators of the games that have died already, a lot of publishers that went out of business and only exist on paper on some underwriter's desk.

I used to work on side-projects in the 1980's and 1990's, somehow they ended up on the Internet for free. Nobody is interested in me making modern day versions of them. I tried Kickstarter and Indiegogo but nothing.

Heck I an others even tried to document the classic BBS DOS based games on Wikipedia, who deleted them because the only source for them were Boardwatch Magazine that is rare and out of print.

I've seen Classic Remakes like Bard's Tale that was basically a pale imitation of the original game with better graphics but not very good game play. True it did include the original game in an emulator, but it failed. Another remake was called Devil's Whiskey to avoid copyright in names, but it had the classic Bard's Tale elements to it. For some reason Devil's Whiskey failed as well.

You do see people remaking classic games on iPhone and Android devices. Then using a different name.

In the Atari 2600 world Activision and iMagic made games based on other games but with different graphics and sounds and different names. Activision had Chopper Command that was like the William's Defender arcade game. Activision also had Chicken that was sort of a Frogger clone. iMagic had Demon Attack that was sort of a Galaga clone with a twist. I think Atlantis by iMagic was supposed to be a Missile Command sort of game as well.

You can see all of the 3D shooters based on Doom and Quake on Steam, in fact you can buy Doom and Quake on Steam and it runs them in DOSBOX.

Sure I spent a whole lot of money on DOS and Windows video games. I still have the original disks somewhere in boxes in my basement. I still have a Packard Bell 486 clone that can play them too.
I was responding to johansch's new trail of thought. He is implying more than reading.
Seems like a chicken and egg problem.

They barely deserve the salary they get now with all the incidents going on, but they won't get more intelligent people applying until the wages are increased.

Probably best to start with the teachers so theres a larger pool if educated people to hire from.
Some caveats about Kafka replication are discussed here: https://aphyr.com/posts/293-call-me-maybe-kafka.

It is important to include these in the "exactly-once" discussion... (hard to be exactly-once if messages are lost broker-side).

Also, great discussion from Coda Hale about "CA" systems here: http://codahale.com/you-cant-sacrifice-partition-tolerance/
http://en.wikipedia.org/wiki/Affirming_the_consequent
This is not a new device, just a new re-branding of an existing CES device:

"Invented by brilliant engineers Saul and Bernard Liss in the 1980's, the Fisher Wallace Stimulator® received FDA clearance in 1991 for the treatment of insomnia, anxiety, depression and pain. "

"After Dr. Liss passed away in 2006 at the age of 84, Charles Fisher and Martin Wallace purchased the patents to the device and named it the Fisher Wallace Stimulator®."
As the GP said, that's why you simply wait until they leave the house. In nearly all these cases, they're only looking for one person.
Its not about click bate,its about waking the sheeplike among us.
Question Everything the propaganda networks spew,head shot no blood lol http://www.veteranstoday.com/2015/01/12/fiasco-france-lie-to...

Also it is not down,redirect is all bbc-news.co.uk
This is interesting. I've also built a flashcard web app with spaced repetition (http://flashcardstash.com). I'm curious, why only the Dropdox login?
People espouse libertarian ideals because they are terrified of the power of the state and do not trust it. To go with this kind of defense, especially when you don't have many options, is not hypocritical. It's easy to say 'have some balls' from the safety of your keyboard.
As tansey said Big-O for the worst case would be O(inf), Best case is O(1), if n is the length of the list, because if the sort returns the speed is independent of the size of the list. The average case is a little harder, but based on the 140 character limit someone else mentioned, I would say that the average case would be O(inf) cause on average it probably wouldn't correctly sort the list.
Shame on you for being unable to empathize with engineers. Recruiting tactics in this industry should be made illegal as a form of harassment, and people like you aren't helping make that happen.
Big-O notation refers to the worst case runtime of an algorithm.

I have no idea where this misconception comes from.

Big-O notation is a type of bound on a function's growth rate. That function can represent anything. Best case performance, worst case performance, average case performance, memory usage, how many times you are likely to phone someone while you wait, etc.

The standard example showing this is that hash lookups are O(1) or O(n) depending on whether you are asking about the average case or the worst case.
...and you would be wrong. The papers he references in his talk are peer reviewed. The lecture, of course, is not :)
If you arrest people outside their house when they go for a walk, how on earth are they going to "flush the drugs down the toilet"?
Based on the likes chart, I've concluded my big 5 profile is "grumpy old fart that doesn't like anything".
The debt closet: student debtors are looking a lot like indentured servants
What's clear to you may not be clear to someone else.
http://en.wikipedia.org/wiki/Cranial_electrotherapy_stimulat...
I've been researching parts for a while relating to non-vibration based haptic output... so far what I've found are solenoid type devices, electro static output (TENS units for example) or resonant actuators, but things like tactile displays used for braile for example are too cumbersome in construction to really be useful as skin contact points.

anyways just an idea from another hacking type who'se been thinking about the subject.
Cops in the US are immune to civil liability for acts while on duty.