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  2. Forensic footwear evidence - Wikipedia

    en.wikipedia.org/wiki/Forensic_footwear_evidence

    If class characteristics, size match and randomly acquired characteristics found in the footwear outsole can also be found in the crime scene impressions: Investigators can determine that the specific piece created the crime scene impression. This relationship can be used as evidence to prove that the footwear's owner was at the crime scene.

  3. Forensic firearm examination - Wikipedia

    en.wikipedia.org/wiki/Forensic_firearm_examination

    [36]: 32 The three main class characteristics of all bullets are the lands and grooves, the caliber of the bullet, and the rifling twist. [37] All three can be tied directly to the type of barrel that was used to fire the bullet. [37] The lands and grooves of barrel are the bumps and valleys created when the rifling is created. The caliber is ...

  4. Category:Characteristic classes - Wikipedia

    en.wikipedia.org/wiki/Category:Characteristic...

    Pages in category "Characteristic classes" The following 10 pages are in this category, out of 10 total. ... Characteristic class; C. Chern class; Chern–Weil ...

  5. Fingerprint - Wikipedia

    en.wikipedia.org/wiki/Fingerprint

    Other contaminants such as oils found in cosmetics, drugs and their metabolites and food residues may be found in fingerprint residues. [6] A friction ridge is a raised portion of the epidermis on the digits (fingers and toes), the palm of the hand or the sole of the foot, consisting of one or more connected ridge units of friction ridge skin.

  6. Questioned document examination - Wikipedia

    en.wikipedia.org/wiki/Questioned_document...

    Its primary purpose is to provide evidence about a suspicious or questionable document using scientific processes and methods. Evidence might include alterations, the chain of possession, damage to the document, forgery, origin, authenticity, or other questions that come up when a document is challenged in court.

  7. Characteristic class - Wikipedia

    en.wikipedia.org/wiki/Characteristic_class

    Characteristic classes are elements of cohomology groups; [1] one can obtain integers from characteristic classes, called characteristic numbers. Some important examples of characteristic numbers are Stiefel–Whitney numbers , Chern numbers , Pontryagin numbers , and the Euler characteristic .

  8. Cladogram - Wikipedia

    en.wikipedia.org/wiki/Cladogram

    The characteristics used to create a cladogram can be roughly categorized as either morphological (synapsid skull, warm blooded, notochord, unicellular, etc.) or molecular (DNA, RNA, or other genetic information). [7] Prior to the advent of DNA sequencing, cladistic analysis primarily used morphological data.

  9. Bayes classifier - Wikipedia

    en.wikipedia.org/wiki/Bayes_classifier

    Suppose a pair (,) takes values in {,, …,}, where is the class label of an element whose features are given by .Assume that the conditional distribution of X, given that the label Y takes the value r is given by (=) =,, …, where "" means "is distributed as", and where denotes a probability distribution.