| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
2,000 pcs
|
2000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
| Category | |
| Manufacturer Name |
The GAUTHIER BM42 is categorized under New Products. This part provides details on the components of the BM25 formula, which has been a standard for search engines for the past 40 years. It breaks down the formula into its core elements: Inverse Document Frequency (IDF) and term importance within a document. The IDF is calculated as the total number of documents divided by the number of documents containing a specific term. The term importance within a document is further defined by a formula involving term frequency, hyperparameters k1 and b, document length, and average document length.
Key hyperparameters for the BM25 formula are specified, with k1 typically set to 1.5 and b set to 0.75 in most implementations. This information is presented as part of the BM42's technical specifications, offering insight into the mechanics of lexical search algorithms.
| Qty | Low | High |
|---|---|---|
| 1+ | $6.79 | $6.79 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The BM25 formula includes IDF(qi) multiplied by a term importance factor: (f(qi, D) * (k1 + 1)) / (f(qi, D) + k1 * (1 - b + b * (|D| / avgdl))).
IDF is calculated as the total number of documents divided by the number of documents containing the specific term qi.
Term importance in a document is calculated as (f(qi, D) * (k1 + 1)) / (f(qi, D) + k1 * (1 - b + b * (|D| / avgdl))).
In most implementations, k1 is set to 1.5 and b is set to 0.75.
The RoHS status is RoHS3 Compliant.
The Moisture Sensitivity Level (MSL) is 1 Unlimited.
The REACH status is REACH Unaffected.