- Election-software - hio.mailmanlists.us

The first (only?) Electorama call: December 17
by Rob Lanphier 02 Dec '25

02 Dec '25

Hi folks, If you closely follow this list (either the EM list or the ES list), you may remember that I somewhat reluctantly suggested a periodic call for electoral-reform advocates that is vaguely neutral with regards to the food fights we frequently have about election methods, but may have a slight bias toward believing the Condorcet winner criterion is very important (if not paramount) among election method criteria. See below for my October message on the subject (both to EM and to ES): - EM: http://lists.electorama.com/pipermail/election-methods-electorama.com/2025-… - ES: https://hio.mailmanlists.us/archives/list/election-software@hio.mailmanlist… After I sent that message to both lists, there wasn't much of a response. Per the conversation several of us had today in a different video call, I'm going to host my first "Electorama!" call on Wednesday, December 17 at 2pm Pacific Standard Time, barring unforeseen complications or last minute rescheduling. Please learn more about how to RSVP and what next steps are here: https://electowiki.org/wiki/User:RobLa/Electorama_call Rob

2 2

Another electoral community call? (the "Electorama call")?
by Rob Lanphier 14 Oct '25

14 Oct '25

Hi folks, As some of you may know, I've been hosting a monthly "office hours" call every Tuesday at 2pm Pacific: https://electowiki.org/wiki/User:RobLa/Tuesday_at_2 It's often a small crowd and seldom more than show up for Sass's weekly call: https://electowiki.org/wiki/Sass_Open_Democracy_Discussion One semi-regular attendee at my monthly call is Kristofer Musterhjelm, though he's not the only electoral-reform person who has dropped by. The conversation on my call frequently gets DEEP in the weeds with respect to oddball corner cases when elections can go off the rails (as well as the interplay between geography and democracy, and other math-y/computer-y topics). It also sometimes ends up being a bit of a gossip session about the various people in the electoral reform movement, though I sometimes feel guilty for letting it go that way. Sometimes. Anyway, things can get a little awkward when alumni from Wikimedia Foundation or other former co-workers and friends/family of mine show up, because I can suddenly lose interest in talking about electoral.reform stuff (especially if it's someone I haven't seen in a while). Folks that I know from electoral reform stuff frequently want to talk about mathematical concepts that I barely understand, let alone my friends who haven't been mildly aware of many of these concepts for the past 30+ years. Also, Kristofer (and probably other Europeans) would like a time for the call that doesn't involve staying up until way-too-late to attend. My "Tuesday at 2" time was chosen because it VERY VAGUELY works for folks in western Europe, the US west coast, and Australia (among others), but rumor has it the globe is spherical, and there are times that suck for some folks in the global electoral community. Who knew? I see the community of folks that subscribe to this list (who I'll refer to as the "Electorama community") as the target audience for this call. Kristofer is less cardinal-tolerant than I am, and thus also doesn't want to stay up until 3am to talk to folks who tend to be biased toward cardinal methods (as many folks on Sass's call are). Though I find STAR to be an acceptable (even "very good") reform, Condorcet methods are my first love, and I find myself "flipping the idiot bit" on people who make specious arguments against Condorcet tallying (even if I don't say so out loud). Given how much many cardinal advocates like to hear the sound of their own voice and how often they make said specious arguments (mistaking "assertiveness" for "correctness"), I find myself frequently biting my tongue/stepping away from the keyboard when I read/hear their arguments. I've been promising Kristofer I'd send this email for weeks if not months now. I've been dragging my feet because I'm ambivalent about having another periodic call that I feel semi-obligated to attend. I'm hoping if we have another call, it'll be complementary to Sass's weekly call (not explicitly competitive to it). I'm not sure if the Electorama call should be weekly, fortnightly, monthly or some other time increment. For now, let's assume this will be fortnightly (i.e. every other week), but let's use when2meet to come to initial consensus: https://www.when2meet.com/?32866470-TyG8q Note that the host (me, for now) gets to choose the time, regardless what the vote on when2meet is. I've created a temporary electowiki page here for this call: https://electowiki.org/wiki/User:RobLa/Electorama_call If you're interested in joining this call, please let your opinion be known at the when2meet link above. when2meet is optimized for weekly meetings, but this is only a straw to get vague availability for everyone. I was very liberal about the times I said that I'm available, but I imagine if the group consensus seems to be at an awful time for me, I may ask someone else to host the call. We can use the "Talk:" page for the "User:RobLa/Electorama_call" page to discuss whether this should be weekly, fortnightly, or monthly. TIA! Rob

2 1

Updates to abif.electorama.com
by Rob Lanphier 19 Aug '25

19 Aug '25

Hi folks I pushed out many updates to https://abif.electorama.com late last night, and it's becoming a lot of fun to use. Some big changes: * Tabbed interface to switch between election methods on any given election * I've added approval voting * it is MUCH easier to just browse tags to find various elections now. I haven't added many new elections, but you may not have noticed many of the elections that were already there before, since the tag navigation was so bad. I did add one notable election: the NYC Democratic Party mayoral race of 2025: https://abif.electorama.com/id/NYC2025-Mayor-Primary-Dem Interestingly, by my count, it would seem that Andrew Cuomo lost in pairwise comparisons to THREE candidates (not just Zohran Mamdani). The November general election is going to be interesting.... The latest version of abif.electorama.com supports approval voting. An interesting bit: it converts ranked ballots to approval ballots. The algorithm uses a funky way of approximating reasonable-ish voter behavior extrapolated from their rankings, which I call the "favorite_viable_half" algorithm: find the candidate with the most first preferences and then determine the minimum number of figurative seats that would need to be open in order for the candidate to exceed the Hare quota with the given first-prefs (an estimate of viable candidates). Assume then that all candidates that the voter ranks above their respective quota of viable candidates are approved, and any ranked below their least favorite in their quota was not approved. Their quota: half of the viable candidates, rounded up. Of course, if they don't rank a candidate, then that candidate isn't approved. Since there isn't a jurisdiction (yet, that I know of) that allows voters to draw an approval line, the algorithm above is my best guess at where they would draw the line between approved and not-approved candidates. In the examples that I've looked at, it intuitively seems rational. For example, let's look at the 2024 SF mayoral race: https://abif.electorama.com/id/sf2024-mayor/approval#approval By the favorite_viable_half algorithm, Daniel Lurie (the winner of the RCV/IRV election) gets 50.1% approval. London Breed (the runner-up incumbent) gets 42.2% approval. That roughly matches what their pre-election approval ratings were, based on my cursory research. Breed had 55% disapproval and 40% approval before the election. It wouldn't be surprising if she netted the 2% difference in the voting booth because voters didn't approve of any of the dozen other candidates running against her. That 42.2% approval is an informed approximation; there were more voters that ranked Breed, but only 42.2% ranked her as one of their two-two favorite viable candidates (of the approximately 4 viable candidates in the election). The media here in SF had a tough time deciding if 4 or 5 of the 13 candidates were viable. The first publicized mayoral debate had 5 candidates, and the remaining debates had 4 candidates. Speaking as a voter who was asked to rank 13 candidates, I say to all y'all who are jealous: be careful what you wish for. The update to abif.electorama.com is all part of the upcoming 0.33 release of abiftool and awt. abiftool is the command-line tool for viewing/analyzing elections (and converting between election-result formats), and then awt is the web interface for abiftool that powers abif.electorama.com. It's all free/open source software, so feel free to download and try it out yourself. Patches/contributors welcome! Also, if you find any bugs (there are many), please file a report in the issue tracker: https://github.com/electorama/awt/issues Don't be bashful about filing feature requests as well. I've got a lot of bugfixing to do before the 0.33.0 release, but after that, I'll be looking for compelling features to implement. Thanks Rob

1 0

abiftool/awt 0.32.0: now with recent SF elections and caching!
by Rob Lanphier 22 Jul '25

22 Jul '25

Hi folks! I'm proud to announce abiftool v0.32.0 and awt v0.32.0, which are: - abiftool <https://electorama.com/abiftool> — a command-line tool for working with election files, converting from other formats into ABIF <https://electowiki.org/wiki/ABIF> (and vice versa), and tallying elections using many systems (Copeland/Condorcet - awt <https://electorama.com/awt> — the web front-end for abiftool. A live instance of awt can be found at abif.electorama.com. New! SF 2024 elections, FPTP support, caching, improved testing, and bug fixes Both awt and abiftool use the abiflib library found in the abiftool repository. Some important advancements in abiflib since the 0.2.0 <https://www.reddit.com/r/EndFPTP/comments/1ihxmw8/over_400_elections_now_at…> release of abiftool back in February 2025: * Handling of San Francisco's latest JSON-based CVRs (see the "sf2024" tag <https://abif.electorama.com/tag/sf2024>). * Initial implementation of First-Past-The-Post (FPTP) tabulation. * Many micro-features hidden in command-line options. * Substantial refactoring of abiflib. * General code cleanup and major improvements throughout. * Much more robust pytests and more of them. Additonally, here's a big improvement in awt * Caching! All prior versions computed the results of the static abif under abif.electorama.com/id/* <https://abif.electorama.com/id> dynamically, which was silly. As a result, the website was often dog slow. Now it is only cat slow. If you tried this out in February and had a poor experience because the many bugs and server timeouts in 0.2.0, come back and try it again. This version is *much* more reliable (he says, automatically jinxing awt to have a serious bug that is obvious to everyone but himself). Bugs, feature requests, other ways to get involved Speaking of bug discovery, bug reporting, and feature requests, there's no end of work to do on abiftool and awt, and your help would be greatly appreciated (even if you aren't a software developer). Please visit abif.electorama.com, and if you find any bugs or think of any features you like to see, file a ticket at github.com/electorama/awt/issues. If you find a problem, don't assume that anyone else knows about it -- getting something in the issue tracker is the best way to ensure someone deals with it. If you're a software developer and want to help, reach out to me; I'm easy to get in touch with (see robla.net and electorama.com) You can help shape the future direction of abiftool and awt: - There's a lot of user interface work that needs to happen with awt. I'm more of a backend developer and text-file twiddler (hence the appeal of ABIF to me), but I recognize many folks have less of tolerance for "ugly" user interfaces than I do. If you fancy yourself a front-end developer looking for a project to make an impact with, talk to me. - Many more formats can be added to and there are many formats that seem worth adding (both for conversion *to* and *from* ABIF). - Keep tweaking at it. There's lot's of smaller features that would be nifty to have (like better display of ties in IRV <https://github.com/electorama/awt/issues/7>). - Merging with other websites/codebases. This is by no means the first public election software (see also stablevoting.org, preflib.org, Votelib <https://github.com/simberaj/votelib>, rob-legrand.github.io <https://rob-legrand.github.io/ranked-ballot-voting-calculator/> and ranked.vote for just a few). There's already some integration/interoperability with some tools [e.g. with the ABIF reader in the pref_voting library <https://github.com/voting-tools/pref_voting/blob/main/pref_voting/io/reader…> or the experimental ABIF branch in Votelib <https://github.com/simberaj/votelib/tree/abif>), but the combinatorial aspects of interoperability between tools mean there's practically infinite work to do. There's a lot of different ways software-developer activitsts can spend their time. What's the *best* way? For that matter, what's a *good enough* way? Join the conversation! To discuss awt and abiftool (and election software more , a good mailing list to join is the election-software mailing list: - https://electorama.com/es ...or if you prefer chat, you can join the Electorama Discord server. - https://electorama.com/discord ...or just get the code and start hacking! Get the code! To get the source code, visit the GitHub projects for awt and abif below: - https://github.com/electorama/awt - https://github.com/electorama/abiftool ...or just visit abif.electorama.com. Rob

1 0

abiftool and awt version 0.31.0: SF 2024 elections, FPTP support, improved testing, and bug fixes
by Rob Lanphier 11 Jul '25

11 Jul '25

Hi folks, Y'all are the first to hear this. Or rather, you're the first to get this email. I've finally released abiftool v0.31.0 and awt v0.31.0. As a refresher: - abiftool <https://electorama.com/abiftool>-- this is a command-line tool for working with election files, converting from other formats into ABIF <https://electowiki.org/wiki/ABIF>, and tallying elections. - awt <https://electorama.com/awt>-- this is the web application version ofabiftool. A live instance ofawt can be found atabif.electorama.com Both awt and abiftool use the abiflib library found in the abiftool repository. Here are some important advancements in abiflib since the 0.2.0 release of abiftool back in February 2025: - Handling of San Francisco's latest JSON-based CVRs. - Initial implementation of First-Past-The-Post (FPTP) tabulation. - Substantial refactoring ofabiflib. - Much more robust pytests and more of them. - Many micro-features hidden in command-line options. - General code cleanup and major improvements throughout. There's a lot of features I would love to add toabiftoolandawt.I'd love your help (especially if you're a Python dev). There's a lot of user interface work that needs to happen withawt, and there are many formats I'd love to add. Even if you aren't a software developer, I'd love for you to visit abif.electorama.com, and if you find any bugs here: https://github.com/electorama/awt/issues To get the source code, visit the GitHub projects forÂ awtÂ andÂ abifÂ below: - https://github.com/electorama/awt - https://github.com/electorama/abiftool Rob

1 0

Release v0.2.0 of abiftool and awt
by Rob Lanphier 04 Feb '25

04 Feb '25

Hi folks, Today, I'm releasing v0.2.0 of "ABIF web tool" (awt) and abiftool. To refresh your memory, ABIF is "Aggregated Ballot Information Format", and is a format for expressing the aggregated results of an election.[1] The release notes for the respective releases can be found here: https://github.com/electorama/abiftool/releases/tag/v0.2.0 https://github.com/electorama/awt/releases/tag/v0.2.0 In short, the marquee feature of this release is the incorporation of compatibility with Brian Olson's "RCV Election Data" from https://bolson.org/voting/votedata/ , along with the display of this data here: https://abif.electorama.com/tag/from-bolson Brian's data significantly augments the modest collection of election data that I was providing before today. While I had slowly been adding other formats to abiftool, this is the first bulk conversion I've performed from another collection. I designed the user interface of the ABIF web tool such that it wouldn't COMPLETELY fall apart if I increased the number of elections, but now that there are over 400 elections shown, we're now testing the limits of the current interface. Please let me know your feedback, either here on this mailing list, or send a personal email to me at roblan(a)gmail.com . Rob [1] https://electowiki.org/wiki/ABIF

1 0

Facebook alternatives?
by Rob Lanphier 19 Jan '25

19 Jan '25

Hi folks, This is a bit off topic for the election-software list, but only a bit. At some point, someone needs to create a voting mechanism that implements many ranked and rated systems, but uses the API of a mainstream social network to filter out duplicate votes by allowing only one vote per account (perhaps limiting things further for social networks that don't mind it if someone sets up dozens or even hundreds of accounts on their system. I think the multi-account per user could be solved by having a group that one's has to be part of, or something along those lines. Still, which API/protocol should we use?Should we focus our efforts on one of the big mainstream corporate networks like Twitter's or Facebook's? Should we focus our efforts on the nascent AT:Protocol <https://en.wikipedia.org/wiki/AT_Protocol>? How about the relatively mature ActivityPub <https://en.wikipedia.org/wiki/ActivityPub>? Since Elon Musk and Mark Zuckerburg are going to be very special guests at Trump's second inauguration, there are many people abandoning Facebook. So, I'd like to share with y'all a wiki page that I'm building out (and would love some help with; just sign up for an account!). The page: https://myndmess.org/wiki/Facebook#Alternatives What are y'all using to communicate with your respective families? What do you wish they'd migrate to? Rob

1 0

Turning distances into coordinates
by Kristofer Munsterhjelm 09 Oct '24

09 Oct '24

(Oops, I had been meaning to write this a long time ago but didn't get around to do it.) Some time ago I suggested that one may use Vivaldi coordinates (https://en.wikipedia.org/wiki/Vivaldi_coordinates) with Kendall tau distance to sort voters into different "camps" based only on the voters' rankings. But the principal value of Vivaldi is that it's distributed, and there's no reason to use it if you're not going to do something distributed. There's a whole class of algorithms that try to solve this problem, which is called nonlinear dimensionality reduction. One example would be multidimensional scaling, https://en.wikipedia.org/wiki/Multidimensional_scaling; the Wikipedia page even has an example graph with voting patterns in the House of Representatives, showing that it can be used for voting analysis. Other examples include isomap and t-SNE. Either of these would probably be better than using Vivaldi :-) The Wikipedia page on nonlinear dimensionality reduction lists a number of other approaches: https://en.wikipedia.org/wiki/Nonlinear_dimensionality_reduction#Important_… and https://en.wikipedia.org/wiki/Nonlinear_dimensionality_reduction#Methods_ba…. -km

1 0

Algorithm for electoral regions from rankings?
by Rob Lanphier 31 Aug '24

31 Aug '24

Hi folks, How might one algorithmically go about generating a 2D placement of affinity groups when one only has ranking information? I've been considering writing something that does this for quite some time, ever since I manually generated this chart of the 2009 mayoral election in Burlington: https://electowiki.org/wiki/File:Burlington2009election-infosheet.png More recently, a discussion broke out on the Center for Election Science's Discord server on this topic. In particular, we started discussing what it would take to generate Yee diagrams from election results. There weren't answers there; there were just more questions. I have some ideas for how to do it (by a vaguely Monte-Carlo-ish evaluation, iterating over placement of candidates and voter affinity groups), but I haven't yet figured out a reasonably simple algorithm. I'm going to set this task aside for now, but if others have ideas, I'd love to see them. Rob

2 1

[Election-software] abiftool now supports SF elections (sorta)
by Rob Lanphier 07 Aug '24

07 Aug '24

Hi folks, I'm planning to start promoting my work on "abiftool" and "awt" some more. In case y'all aren't familiar with either of these, here's the URLs: awt (ABIF web tool): https://awt.electorama.com abiftool: https://github.com/electorama/abiftool Both of these use the same "abiflib" library to parse a variety of formats, transform those formats to ABIF (or "jabmod", which is the internal format that can be used as a bit of an API to abiflib), and then it spits out election results in a variety of ways. abiftool injustice many formats, and I'm happy to add more. It doesn't spit out many formats yet, but I'm happy to add other formats if the developers of those formats work with me to make it happen. If y'all aren't familiar with ABIF, please take a look at the ABIF page on electowiki: https://electowiki.org/wiki/ABIF I would love to get some collaborators on awt and abiftool for pretty much all of the features that are missing from either user interface for either of the tools that I started for ABIF handling. If you want to create an independent implementation (especially in another language besides Python), I'm really interested in that. I'm generally interested in collaborating with folks on software for processing historic elections and theoretical election examples that folks share online. Rob

1 0