Stopwords

Some neutral complementary words in a human language can be frequently used in texts. For example the english words are, it and was. Such neutral words could potentially distort a search result completely:

• A neutral word in the query can result in lots of irrelevant hits
• Due to its frequent occurrence in texts it can also be scored high, i.e. lots of the "top hits" are completely irrelevant.

Such words are called stopwords. A index field that is stopword-aware completely ignores these words. They are not indexed at all by the field (hence not part of the field's queryable data).

Index language is important

Stopwords are language-dependant. The index language determines what stopwords to use.

Swedish Stopwords

• alla, allt, att, av
• blev, bli, blir, blivit
• de, dem, den, denna, deras, dess, dessa, det, detta, dig, din, dina, ditt, du, då, där
• efter, ej, eller, en, er, era, ert, ett
• från, för
• ha, hade, han, har, henne, hennes, hon, honom, hur, här
• i, icke, ingen, inom, inte
• jag, ju
• kan, kunde
• man, med, men, mellan, mig, min, mina, mitt, mot, mycket
• ni, nu, någon, något, några, när
• och, om, oss
• på
• samma, sedan, sig, sin, sina, sitta, själv, skulle, som, så, sådan, sådana, sådant
• till
• under, upp, ut, utan
• vad, var, vara, varför, varit, varje, vars, vart, vem, vi, vid, vilka, vilkas, vilken, vilket, vår, våra, vårt
• åt
• än, är
• över

English Stopwords

• a, an, and, are, as, at
• be, but, by
• for
• if, in, into, is, it
• no, not
• of, on, or
• such
• that, the, their, then, there, these, they, this, to
• was, will, with