Get ZPAQ here. https://mattmahoney.net/dc/zpaq.html
The command to compress with order 0 and 1 CM is: zpaq a archive.zpaq inputfile -ms6.0c100.0c100.0.255m -m means method. s means streaming format. It has less overhead than journaling (x). 6 means 2^6 MB block size. If the block size is smaller than your input file then it will split the input and compress each block in a separate thread. This is faster but compression is worse. Also, most components are allocated memory equal to the block size, so using larger blocks reduces hash table collisions. This should not be an issue for low order models. 0 means no transform like LZ77 or BWT. c followed by 1-255 is a CM. 0 means ICM. You can try different numbers to get better compression. A CM maps a context hash directly to a bit probability. The prediction is updated by 1/count, where 100 is 1/4 the maximum count. For stationary sources like text, higher numbers work better. 0 means no special contexts. The only one that might be useful might be 1010, which means the count to the last occurrence of a 10 (line feed) for text based tables. 255 is the context mask (0xFF) which selects all of the bits of most recent whole byte. This is hashed together with the previous bits of the current byte. If you want order 2, use c100.0.255.255 and so on. m is the final mixer. -- Matt Mahoney, [email protected] On Sun, Dec 21, 2025, 1:02 AM <[email protected]> wrote: > https://encode.su/threads/342-paq8px?p=86059&viewfull=1#post86059 > The AI is telling me I can't run this with commands like that and that its > only for ZPAQ not version 67 linked above ... ? paq8px_v209fix1.exe > > Also wait, to be more specific, I want order 0 and order 1 mixed, with no > ICM / SSE etc. I just want to see what it's power is for the bare basic. > *Artificial General Intelligence List <https://agi.topicbox.com/latest>* > / AGI / see discussions <https://agi.topicbox.com/groups/agi> + > participants <https://agi.topicbox.com/groups/agi/members> + > delivery options <https://agi.topicbox.com/groups/agi/subscription> > Permalink > <https://agi.topicbox.com/groups/agi/Tf0bedfcd44454678-Mff9c0e06ca03362de73bae51> > ------------------------------------------ Artificial General Intelligence List: AGI Permalink: https://agi.topicbox.com/groups/agi/Tf0bedfcd44454678-Mfd15f1b9cfaf7d24dee86c45 Delivery options: https://agi.topicbox.com/groups/agi/subscription
