Starred posts

Wei Zhong

Dec 27, 2024 23:17

service resumed.

Wei Zhong

Jul 19, 2024 18:48

Just sharing a piece of good news that I've secured another year of website sponsorship from Akamai (previously Linode). approach0.xyz will stay alive for another year.

4

Martin Sleziak

Oct 16, 2024 04:54

One possibility is to have a chat room devoted to searching for likely dupes. But it may not get much use since many users are motivated by the SE rep game and they get no rep for locating dupes but plenty of rep for posting fgtiw dupe answers. — Bill Dubuque Oct 12 at 22:19

Martin Sleziak

Oct 16, 2024 04:54

@BillDubuque There already exists a chatroom related to searching - I assume it could be suitable for this purpose, too? (Although looking at that room, one can see that it is not very active.) — Martin Sleziak yesterday

Martin Sleziak

Jan 7, 2024 07:30

Happy New Year!

3

Wei Zhong

Jan 19, 2024 19:05

@MartinR it is, I have got used to receiving notice here about the server. But as I am now having a full-time job during week days, I can only check this room in my spare time, otherwise I cannot fix server issues responsively even if I noticed the problem. Unfortunately this site is not my first priority right now.

2

Martin R

Jan 19, 2024 18:30

@WeiZhong Is this chatroom the preferred way to notify you of an Approach0 server problem? Or should we create an issue on the GitHub project? Or something else?

2

Wei Zhong

Jan 19, 2024 17:52

service resumed.

2

Wei Zhong

Nov 13, 2023 23:03

service resumed.

2

Soumik Mukherjee

Mar 15, 2024 06:08

^nvm, I got the answer

Soumik Mukherjee

Mar 15, 2024 05:59

Given an infinite subset $S$ of $\Bbb{N}$ and any polynomial $f\in K[t]$, does there always exist a polynomial $g\in K[t]$ such that if $fg=\sum_{i\geq0}a_it^i$ then $a_i=0 \forall i\not\in S$

Soumik Mukherjee

Mar 14, 2024 18:23

Given an infinite subset $S$ of $\Bbb{N}$ and any polynomial $f\in K[t]$, does there always exist a polynomial $g\in K[t]$ such that the coefficients of $fg$ are in $S$? Has this question been asked before?

Wei Zhong

Mar 2, 2024 03:28

I'm just checking in to keep the room going :)

Wei Zhong

Feb 7, 2024 19:09

I'm just checking in to keep the room going :)

Sine of the Time

Nov 21, 2023 19:40

$f(x)=e^{-|x|}$, I'm trying to compute $f*f$. Has this question being asked before?

Wei Zhong

Jun 7, 2021 11:28

@MartinR @Sil Since you asked for the filter feature before, I want invite you to have a very first test on the updated system.

5

Wei Zhong

Nov 13, 2023 22:17

It is because Linode had an maintenance on its infrastructure, I guess I just need to reboot everything.

Martin Sleziak

Oct 8, 2023 14:28

It seems that the SearchOnMath changed from "some results are hidden for non-subscribers" to "all results are hidden for non-subscribers". At least that's my impression based on a few searches that I've done recently.

Martin R

Dec 13, 2022 15:40

So the problem is known for 10 years, apparently nobody from the staff has an interest in fixing it.

2

Wei Zhong

Jun 15, 2021 05:50

@Sil Hey, preliminary results (shown on a draft task paper) show our team from approach0 obtains the best formula retrieval results in the CLEF-ARQMath 2021 Task! I am glad to tell everyone in this room.

4

Sil

Jun 3, 2021 09:54

It would be nice if the filter for site (e.g. site:math.stackexchange.com) was somehow quickly available/visible to the user, otherwise I am afraid that current users will not know about it

3

Wei Zhong

Jun 2, 2021 22:36

btw. I've implemented a few things recently, including: (1) \exact modifier for matching exact symbol(s) (2) field search, so you can specify searching field e.g., title, body or tags (3) being able to add AND or NOT specifiers on keyword(s) to filter things; (4) what comes for free is you can limit the source using modifier site:math.stackexchange.com.

3

Wei Zhong

May 5, 2021 18:48

Announcement: Because we are using approach0 to attend a math search competition, and to the best of my team interests, approach0 will resume service after May 12.

3

Sil

Jan 3, 2023 15:55

Is there a (possibly soft) question that would list mathematical papers with interesting/funny names? I found one very interesting today so I would like to add it anywhere at least closely related

Martin R

Dec 13, 2022 15:38

7

Q: Why does not $a < b$ render here?

On the MathJax demo page, entering a < b results in $a<b$. This is consistent with MathJax documentation. On Mathematics.SE the behavior is different: $a < b$. This becomes a problem when one copies formulas from a comment into an answer, as mentioned here. In the HTML source of comments, <...

Martin R

Dec 13, 2022 15:36

9

Q: Duplicate banner breaks LaTeX

On several recent occasions, after closing a question as a possible duplicate the automatic banner breaks the $\LaTeX$ requiring manual intervening. I don't recall it was like that before, and I suppose that something was changed in the way the system fetches the question's title. It does not br...

bug status-completed mathjax closing exact-duplicates

Martin R

Dec 8, 2022 09:30

Both $f'$ and $f^\prime$ can be used for derivatives in LaTeX. However, it seems that these expressions are not treated as equivalent in Approach0.

Wei Zhong

Jun 1, 2020 05:39

My Github sponsor account is just approved, here is my sponsor page: github.com/sponsors/t-k- Note that you may need to register a Gihub account to pay any amount. Also, Github sponsorship accepts paypal and credit cards, however, be aware that it is monthly subscription.

3

Bill Dubuque

Jun 24, 2021 05:02

@WeiZhong Thanks much for implementing the ability to restrict searches to Math.SE. This will make Approach0 much more useful for those of us who seek to better organize Math.SE (which is absolutely essential for its continued success).

2

Wei Zhong

Jun 22, 2021 06:46

Update: the "official webiste" will be switched to the new version in a few minutes.

2

Wei Zhong

Jun 7, 2021 11:40

(5) to use NOT clause to filter things: approach0.me/search/…

2

Wei Zhong

Jun 7, 2021 11:36

(4) to limit data source to MSE: approach0.me/search/… and limit data source to AoPS approach0.me/search/…

2

Wei Zhong

Jun 7, 2021 11:34

(3) to search certain keywords in only title field: approach0.me/search/…

2

Wei Zhong

Jun 7, 2021 11:33

(2) to search for posts of some tags: approach0.me/search/…

2

Wei Zhong

Jun 7, 2021 11:29

(1) \exact specifier for symbols: approach0.me/search/…

2

Martin R

Oct 20, 2022 07:02

I just discovered that in the result page of an Approach0 query, one can click on a tag below a search result, and this tag will be added to the query with "AND tag:xxx".
That is a useful feature to restrict a query quickly. Perhaps it is well-known, but I discovered it by accident.

Wei Zhong

May 12, 2021 12:19

Approach Zero service is resumed.

2

Sil

Sep 14, 2022 18:03

I would suggest that filtering results per site should be doable for example through checkbox, or in other more user friendly way..

Wei Zhong

Dec 1, 2019 16:34

Hi, a test instance of Approach0 v3 has been setup: 45.79.114.212/search

3

Wei Zhong

Dec 18, 2020 22:32

If you haven't tried Approach Zero for a while, try it now! Currently it has the biggest index (around 2 millions posts) and fastest retrieval time ever (more search workers and a very recent technical improvement). I cannot believe I have made it more efficient than ever, enjoy searching!

2

Wei Zhong

Dec 7, 2020 04:14

@Sil I think I cannot resist to put the new UI up (and I just did it). I will try out other color schemes later. Please forgive the colorful page for a while...

2

Martin R

Nov 21, 2020 15:58

@WeiZhong Thank you (once again) for your incredible work on Approach0. It is an invaluable tool to find related Q&As on Math Stack Exchange, so that they can be linked together, cleaning up the site a little bit.

2

Sil

Sep 22, 2020 12:11

Also I have created issue on github that serves as a feature request for adding filter by source (AoPS/MSE/...) github.com/approach0/search-engine/issues/29 . Not saying there will be anyone to implement this, but still I think this is an important feature not to be forgotten.

2

Martin Sleziak

May 9, 2022 04:35

This room has been relatively silent recently. Just in case it gets frozen, I will remind that moderators can unfreeze chatrooms - so you can ask some moderator (from any site) whether they would be willing to do so. See also: meta.stackexchange.com/tags/frozen-rooms/info and How do I unfreeze a frozen chat room?

Sil

Apr 9, 2022 08:39

@WeiZhong You probably already know about this but there is this project which contains abstracts and reviews of lots of math papers and they seem to be open to indexing and stuff, they even have some sort of their own formula search: zbmath.org/formulae

Sil

Mar 21, 2022 10:31

Okay nevermind, I have found what caused the issue, apparently it was this commit github.com/approach0/a0-crawlers/commit/…, if you recall thats the PR we were critical of :D I will make one line PR to fix this...

Koro

Mar 5, 2022 05:38

and you'll now see clear demarcation: what subsribers get and what non subscribers don't get.

Koro

Mar 5, 2022 05:32

@MartinSleziak I use search on math too and I saw their message that they were going to charge soon. And when they did introduce the subscription, I noted difference in the search results I got because I didn't have subscription.

Martin R

Mar 5, 2022 04:18

@MartinSleziak SearchOnMath now charges US$ 4.49 per month for a private subscription (searchonmath.com/terms-of-use). Without that, many search results are hidden.

Wolgwang

Mar 3, 2022 11:55

I am getting search result for $\sin A +\sin B+\sin C$ while searching for $\sin A +\sin B-\sin C$

In the search of a question

In the search of a question