![]() ![]() QWORD - the result - FNV1A_Pippip, the Y-axis is the hashes/s:įor example, I did a quick test with enwik9 (the first 1,000,000,000 bytes of Wikipedia XML dump) using the first power of 2 bigger than ALL POSITIONS, i.e. Since, speed is the most sought after property (second only to dispersion, speaking of up to 32bit hashtables fittable in RAM), I raised the granularity/order of FNV-1A from 1 octet up to 8 octets i.e. ![]() This would help tremendously when one has to instantly check whether the English text which is typed appears within a given corpus. Would appreciate more experienced coders sharing their vision on the matter.Īs an amateur, an old dream of mine is to have the ability to auto-complete (to have a predictor) any Latin (1.31 bytes long) chunk within a given text. The problem is that the latest dump is around 72GB in size. As a first layer/step, hashing is the answer, yes? According to Wikihow, using three hashtags in one Tweet is the absolute maximum, and doing so risks "raising the ire of the community.My wish is to find the best way to search words and phrases within the ever-growing English Wikipedia XML dump. Using two hashtags is acceptable, especially when one of the # tags includes an actual location, such as #SanDiego and #wildfires. The question "what is a hashtag" is an ongoing one among social media users, and the definition of a hashtag continues to evolve.Ĭurrently, it is acceptable to tag only significant posts that will contribute to the general conversation with one hashtag. When properly used, Twitter hashtags can be a powerful social media tool for business promotion and trend tracking.Īccording to The Twitter Rules, Twitter accounts will be deemed to be "spamming" if used to post numerous updates using a # that are unrelated to the hashtag topic or group, resulting in permanent suspension of the offending account.īecause hashtags are relatively new, and the Twitter community at large generally dictates what is the norm on the site the acceptable use of hashtags is constantly evolving. For example, users who want to set up a group for their running group might want to use a hashtag label that includes terms that group members would recognize, like #SFBayRoadrunners. Hashtags should be directly related to the topic. It's also important to keep hashtags brief, as the words and numbers prefixed with the # symbol are included in the 140-character limit per Tweet. These rules address issues like offensive and threatening language, as well as impersonating an individual, group or business.īefore deciding on a hashtag, users should do some research to see what keywords are available. Twitter users are free to develop and use their own hashtags as long as they fall within the Twitter rules set out by the company. Posters can include more than one hashtag within a single Tweet, so when searching for posts users can enter multiple hashtag terms, like #NewYork #Pizza. Users looking for the best fuel prices can search for #cheapgas and the #osama hashtag was especially popular in May 2011. For example, Twitter users can elect to follow all Tweets that include the hashtag #WhiteSox to receive updates about the Chicago White Sox baseball team. With an average of 140 million Tweets and half a million new accounts created every day, it is easy to see why users need some way of sorting through all these messages.Īny Tweet posted on a public account can be searched by anyone, and posters often use hashtags to help direct searches to their posts. The use of the pound symbol to categorize messages and define conversations spread quickly throughout the Twitter community, and is now an integral part of this fast-paced live information network.Īccording to Twitter, in 2011 over 10 percent of all Tweets now contain one or more hashtags. ![]() Twitter user Chris Messina ( first Tweeted with a hashtag symbol # in August 2007, as a way to define groups on the social media site. Posts that have the same keywords prefixed with the # symbol are grouped together in user searches, bringing a level of order to the frenzied chaotic world of Twitter. The hash mark, or pound symbol, (#) is now known by social media users as a "hashtag" or "hash tag". Thanks to the member-driven online information site Twitter, the lowly "pound" or "number" symbol "#" has been elevated to a new role. The hashtag is used to highlight keywords or topics within a Tweet, and can be placed anywhere within a post. Simply put, a hashtag is an easy way for people to categorize, find and join conversations on a particular topic. ![]()
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