diff --git a/owlps-positioner/src/accesspoint.cc b/owlps-positioner/src/accesspoint.cc
index 4e413f5..94f7de8 100644
--- a/owlps-positioner/src/accesspoint.cc
+++ b/owlps-positioner/src/accesspoint.cc
@@ -17,7 +17,6 @@
 #include "posexcept.hh"
 
 using namespace std ;
-using std::tr1::unordered_map ;
 
 
 
diff --git a/owlps-positioner/src/autocalibration.cc b/owlps-positioner/src/autocalibration.cc
index bbfdd95..b1a3490 100644
--- a/owlps-positioner/src/autocalibration.cc
+++ b/owlps-positioner/src/autocalibration.cc
@@ -25,7 +25,7 @@
 #include <sstream>
 
 using namespace std ;
-using std::tr1::unordered_map ;
+
 
 
 /* *** Static attribute definitions *** */
diff --git a/owlps-positioner/src/autocalibration.hh b/owlps-positioner/src/autocalibration.hh
index fcafc38..255a6d9 100644
--- a/owlps-positioner/src/autocalibration.hh
+++ b/owlps-positioner/src/autocalibration.hh
@@ -21,7 +21,7 @@ class Point3D ;
 #include "measurement.hh"
 
 #include <vector>
-#include <boost/tr1/unordered_map.hpp>
+#include <unordered_map>
 
 /**
  * The class Autocalibration contains the code used to generate single
@@ -38,7 +38,7 @@ private:
   } ;
 
   /// Current AP to generate a SS for
-  std::tr1::unordered_map<std::string, AccessPoint>::const_iterator rx ;
+  std::unordered_map<std::string, AccessPoint>::const_iterator rx ;
   /// Angle P-RX-O, O being the origin of the trigonometric circle
   float origin_angle ;
   /// Selected transmitter APs
@@ -50,19 +50,19 @@ private:
    */
   std::multimap<double,
       std::pair<double,
-      std::tr1::unordered_map<
+      std::unordered_map<
       std::string, AccessPoint>::const_iterator> >
       sorted_negative_angles ;
   /// Angles of the transmitter APs (after M on the trigonometric circle)
   std::multimap<double,
       std::pair<double,
-      std::tr1::unordered_map<
+      std::unordered_map<
       std::string, AccessPoint>::const_iterator> >
       sorted_positive_angles ;
   /// Characteristics of the virtual mobile
   double vmob_gain, vmob_pow ;
   /// Generated measurements' list
-  std::tr1::unordered_map<std::string, Measurement> measurements ;
+  std::unordered_map<std::string, Measurement> measurements ;
 
 protected:
   /// Number of generated "virtual" mobiles
@@ -78,7 +78,7 @@ protected:
   /// Computes the weight of the selected AP(s)
   void weight_aps(void) ;
   void init_ap(
-    std::map<double, std::pair<double, std::tr1::unordered_map<
+    std::map<double, std::pair<double, std::unordered_map<
     std::string, AccessPoint>::const_iterator> >::const_iterator s) ;
   /// Weights two APs according to their angles
   void weight_2_aps(void) ;
diff --git a/owlps-positioner/src/building.cc b/owlps-positioner/src/building.cc
index 3c31d09..9e29d59 100644
--- a/owlps-positioner/src/building.cc
+++ b/owlps-positioner/src/building.cc
@@ -19,8 +19,6 @@
 
 
 using namespace std ;
-using std::tr1::unordered_set ;
-using std::tr1::unordered_map ;
 
 
 
diff --git a/owlps-positioner/src/building.hh b/owlps-positioner/src/building.hh
index 3194a33..d01fd48 100644
--- a/owlps-positioner/src/building.hh
+++ b/owlps-positioner/src/building.hh
@@ -20,8 +20,8 @@ class Waypoint ;
 
 #include <string>
 #include <ostream>
-#include <boost/tr1/unordered_set.hpp>
-#include <boost/tr1/unordered_map.hpp>
+#include <unordered_set>
+#include <unordered_map>
 
 /// Represents a building, containing one or more Area
 class Building
@@ -29,9 +29,9 @@ class Building
 protected:
   std::string name ;
   /// List of Area contained in the Building
-  std::tr1::unordered_map<std::string, Area*> areas ;
+  std::unordered_map<std::string, Area*> areas ;
   /// List of Waypoint in the Building
-  std::tr1::unordered_set<Waypoint*> waypoints ;
+  std::unordered_set<Waypoint*> waypoints ;
 
 public :
   Building(const std::string &_name = "Unnamed building"):
@@ -46,9 +46,9 @@ public :
   /** @name Read accessors */
   //@{
   const std::string& get_name(void) const ;
-  const std::tr1::unordered_map<std::string, Area*>&
+  const std::unordered_map<std::string, Area*>&
   get_areas(void) const ;
-  const std::tr1::unordered_set<Waypoint*>& get_waypoints(void) const ;
+  const std::unordered_set<Waypoint*>& get_waypoints(void) const ;
   //@}
 
   /** @name Write accessors */
@@ -82,14 +82,14 @@ inline const std::string& Building::get_name() const
 }
 
 
-inline const std::tr1::unordered_map<std::string, Area*>&
+inline const std::unordered_map<std::string, Area*>&
 Building::get_areas() const
 {
   return areas ;
 }
 
 
-inline const std::tr1::unordered_set<Waypoint*>&
+inline const std::unordered_set<Waypoint*>&
 Building::get_waypoints() const
 {
   return waypoints ;
diff --git a/owlps-positioner/src/calibrationrequest.cc b/owlps-positioner/src/calibrationrequest.cc
index e643cb9..1b2a5d5 100644
--- a/owlps-positioner/src/calibrationrequest.cc
+++ b/owlps-positioner/src/calibrationrequest.cc
@@ -13,7 +13,6 @@
 
 
 #include "calibrationrequest.hh"
-#include "referencepoint.hh"
 
 
 
@@ -93,17 +92,3 @@ operator==(const CalibrationRequest &source) const
     direction == source.direction &&
     reference_point == source.reference_point ;
 }
-
-
-
-size_t hash_value(const CalibrationRequest &source)
-{
-  size_t seed = 0 ;
-
-  boost::hash_combine(seed, static_cast<Request>(source)) ;
-  boost::hash_combine(seed, source.direction) ;
-  if (source.reference_point != NULL)
-    boost::hash_combine(seed, *source.reference_point) ;
-
-  return seed ;
-}
diff --git a/owlps-positioner/src/calibrationrequest.hh b/owlps-positioner/src/calibrationrequest.hh
index 16ed47b..6a1ef53 100644
--- a/owlps-positioner/src/calibrationrequest.hh
+++ b/owlps-positioner/src/calibrationrequest.hh
@@ -15,10 +15,10 @@
 #ifndef _OWLPS_POSITIONING_CALIBRATIONREQUEST_HH_
 #define _OWLPS_POSITIONING_CALIBRATIONREQUEST_HH_
 
-class ReferencePoint ;
-
 #include "request.hh"
 #include "direction.hh"
+#include "referencepoint.hh"
+#include "posutil.hh"
 
 /// Represents a calibration Request sent by a mobile
 class CalibrationRequest: public Request
@@ -66,9 +66,6 @@ public:
   bool operator==(const CalibrationRequest &source) const ;
   bool operator!=(const CalibrationRequest &source) const ;
   //@}
-
-  /// Hashes a CalibrationRequest
-  friend std::size_t hash_value(const CalibrationRequest &source) ;
 } ;
 
 
@@ -118,4 +115,25 @@ operator!=(const CalibrationRequest &source) const
 
 
 
+namespace std
+{
+template<> struct hash<CalibrationRequest>
+{
+public:
+  size_t operator()(const CalibrationRequest &source) const
+  {
+    size_t seed = 0 ;
+
+    PosUtil::hash_combine(seed, static_cast<Request>(source)) ;
+    PosUtil::hash_combine(seed, source.get_direction()) ;
+    if (source.get_reference_point() != NULL)
+      PosUtil::hash_combine(seed, *source.get_reference_point()) ;
+
+    return seed ;
+  }
+} ;
+}
+
+
+
 #endif // _OWLPS_POSITIONING_CALIBRATIONREQUEST_HH_
diff --git a/owlps-positioner/src/direction.cc b/owlps-positioner/src/direction.cc
index 4fba2b5..cf239df 100644
--- a/owlps-positioner/src/direction.cc
+++ b/owlps-positioner/src/direction.cc
@@ -15,8 +15,6 @@
 #include "direction.hh"
 #include "posexcept.hh"
 
-#include <boost/functional/hash.hpp>
-
 
 
 /* *** Constructors *** */
@@ -80,10 +78,3 @@ Direction::operator std::string() const
     }
   return "Bad direction!" ;
 }
-
-
-
-size_t hash_value(const Direction &source)
-{
-  return boost::hash_value(source.direction) ;
-}
diff --git a/owlps-positioner/src/direction.hh b/owlps-positioner/src/direction.hh
index 67503f3..e07f55b 100644
--- a/owlps-positioner/src/direction.hh
+++ b/owlps-positioner/src/direction.hh
@@ -49,9 +49,6 @@ public:
   operator int(void) const ;
   operator std::string(void) const ;
   //@}
-
-  // Hashes a Direction
-  friend size_t hash_value(const Direction &source) ;
 } ;
 
 
@@ -94,4 +91,19 @@ inline Direction::operator int() const
 
 
 
+namespace std
+{
+template<> struct hash<Direction>
+{
+public:
+  size_t operator()(const Direction &source) const
+  {
+    hash<int> h ;
+    return h(source) ;
+  }
+} ;
+}
+
+
+
 #endif // _OWLPS_POSITIONING_DIRECTION_HH_
diff --git a/owlps-positioner/src/inputcsv.cc b/owlps-positioner/src/inputcsv.cc
index 0b17f1a..08fb030 100644
--- a/owlps-positioner/src/inputcsv.cc
+++ b/owlps-positioner/src/inputcsv.cc
@@ -20,10 +20,9 @@
 #include "configuration.hh"
 
 #include <iostream>
-#include <boost/tr1/unordered_map.hpp>
+#include <unordered_map>
 
 using namespace std ;
-using std::tr1::unordered_map ;
 
 
 
diff --git a/owlps-positioner/src/inputudpsocket.cc b/owlps-positioner/src/inputudpsocket.cc
index 68b62a0..758a62d 100644
--- a/owlps-positioner/src/inputudpsocket.cc
+++ b/owlps-positioner/src/inputudpsocket.cc
@@ -23,10 +23,9 @@
 #include <cstdio> // For perror()
 #include <unistd.h> // For close()
 #include <arpa/inet.h> // For inet_ntop()
-#include <boost/tr1/unordered_map.hpp>
+#include <unordered_map>
 
 using namespace std ;
-using std::tr1::unordered_map ;
 
 
 
diff --git a/owlps-positioner/src/minmax.cc b/owlps-positioner/src/minmax.cc
index 35ce7e9..1b12052 100644
--- a/owlps-positioner/src/minmax.cc
+++ b/owlps-positioner/src/minmax.cc
@@ -15,7 +15,7 @@
 #include "minmax.hh"
 #include "accesspoint.hh"
 
-using std::tr1::unordered_map ;
+using namespace std ;
 
 
 
diff --git a/owlps-positioner/src/minmax.hh b/owlps-positioner/src/minmax.hh
index dd1df40..885dc27 100644
--- a/owlps-positioner/src/minmax.hh
+++ b/owlps-positioner/src/minmax.hh
@@ -23,7 +23,7 @@ class MinMax: public TrilaterationMethod
 private:
   float min ;
   Point3D centre ;
-  std::tr1::unordered_map<AccessPoint*, float> const *ap_distances ;
+  std::unordered_map<AccessPoint*, float> const *ap_distances ;
 
   void iterate(float x, float y, float z) ;
 
@@ -45,9 +45,9 @@ public:
   ~MinMax(void) {}
 
   Point3D trilaterate(
-    const std::tr1::unordered_map<AccessPoint*, float> &_ap_distances) ;
+    const std::unordered_map<AccessPoint*, float> &_ap_distances) ;
   Point3D trilaterate_2d(
-    const std::tr1::unordered_map<AccessPoint*, float> &_ap_distances,
+    const std::unordered_map<AccessPoint*, float> &_ap_distances,
     float z) ;
 } ;
 
diff --git a/owlps-positioner/src/point3d.cc b/owlps-positioner/src/point3d.cc
index cd83585..7c52a71 100644
--- a/owlps-positioner/src/point3d.cc
+++ b/owlps-positioner/src/point3d.cc
@@ -17,7 +17,6 @@
 #include "posexcept.hh"
 
 #include <sstream>
-#include <boost/functional/hash.hpp>
 
 using namespace std ;
 
@@ -197,16 +196,3 @@ ostream& operator<<(ostream &os, const Point3D &p)
   os << "(" << p.x << ";" << p.y << ";" << p.z << ")" ;
   return os ;
 }
-
-
-
-size_t hash_value(const Point3D &source)
-{
-  size_t seed = 0 ;
-
-  boost::hash_combine(seed, source.x) ;
-  boost::hash_combine(seed, source.y) ;
-  boost::hash_combine(seed, source.z) ;
-
-  return seed ;
-}
diff --git a/owlps-positioner/src/point3d.hh b/owlps-positioner/src/point3d.hh
index 2772319..802a377 100644
--- a/owlps-positioner/src/point3d.hh
+++ b/owlps-positioner/src/point3d.hh
@@ -15,6 +15,8 @@
 #ifndef _OWLPS_POSITIONING_POINT3D_HH_
 #define _OWLPS_POSITIONING_POINT3D_HH_
 
+#include "posutil.hh"
+
 #include <string>
 #include <ostream>
 #include <cmath>
@@ -92,9 +94,6 @@ public:
 
   /// Displays a Point3D
   friend std::ostream& operator<<(std::ostream &os, const Point3D &p) ;
-
-  /// Hashes a Point3D
-  friend std::size_t hash_value(const Point3D &source) ;
 } ;
 
 
@@ -235,4 +234,24 @@ inline bool Point3D::operator>=(const Point3D &source) const
 
 
 
+namespace std
+{
+template<> struct hash<Point3D>
+{
+public:
+  size_t operator()(const Point3D &source) const
+  {
+    size_t seed = 0 ;
+
+    PosUtil::hash_combine(seed, source.get_x()) ;
+    PosUtil::hash_combine(seed, source.get_y()) ;
+    PosUtil::hash_combine(seed, source.get_z()) ;
+
+    return seed ;
+  }
+} ;
+}
+
+
+
 #endif // _OWLPS_POSITIONING_POINT3D_HH_
diff --git a/owlps-positioner/src/positioning.cc b/owlps-positioner/src/positioning.cc
index 2234388..e19a3f5 100644
--- a/owlps-positioner/src/positioning.cc
+++ b/owlps-positioner/src/positioning.cc
@@ -26,10 +26,9 @@
 #include <owlps.h>
 
 #include <iostream>
-#include <boost/tr1/unordered_set.hpp>
+#include <unordered_set>
 
 using namespace std ;
-using std::tr1::unordered_set ;
 
 
 
diff --git a/owlps-positioner/src/posutil.cc b/owlps-positioner/src/posutil.cc
index 9bbc538..d29cc7e 100644
--- a/owlps-positioner/src/posutil.cc
+++ b/owlps-positioner/src/posutil.cc
@@ -23,7 +23,6 @@
 #include <cmath>
 
 using namespace std ;
-using std::tr1::unordered_map ;
 
 
 
diff --git a/owlps-positioner/src/posutil.hh b/owlps-positioner/src/posutil.hh
index 77a6e41..a9048f4 100644
--- a/owlps-positioner/src/posutil.hh
+++ b/owlps-positioner/src/posutil.hh
@@ -17,7 +17,7 @@
 
 class Measurement ;
 
-#include <boost/tr1/unordered_map.hpp>
+#include <unordered_map>
 #include <boost/algorithm/string/case_conv.hpp>
 #include <stdint.h> // <cstdint> is not C++ 98 compliant
 
@@ -28,6 +28,12 @@ public:
   /// The speed of light, in m/s
   static const unsigned long LIGHT_SPEED = 299792458 ;
 
+  /** @name Hashes */
+  //@{
+  template <class T> static void hash_combine(
+    std::size_t &seed, const T &v) ;
+  //@}
+
   /** @name Maths */
   //@{
   /// Returns the radian value of \em degrees
@@ -42,12 +48,12 @@ public:
   //@{
   /// Mutually completes two Measurement lists with missing APs
   static void complete_with_dummy_measurements(
-    std::tr1::unordered_map<std::string, Measurement> &measurements1,
-    std::tr1::unordered_map<std::string, Measurement> &measurements2) ;
+    std::unordered_map<std::string, Measurement> &measurements1,
+    std::unordered_map<std::string, Measurement> &measurements2) ;
   /// Computes the similarity of two Measurement lists
   static float similarity(
-    std::tr1::unordered_map<std::string, Measurement> &measurements1,
-    std::tr1::unordered_map<std::string, Measurement> &measurements2) ;
+    std::unordered_map<std::string, Measurement> &measurements1,
+    std::unordered_map<std::string, Measurement> &measurements2) ;
   //@}
 
   /** @name Wi-Fi */
@@ -65,6 +71,18 @@ public:
 
 
 
+/* *** Hashes *** */
+
+
+template <class T> inline void PosUtil::
+hash_combine(std::size_t &seed, const T &v)
+{
+  std::hash<T> hasher;
+  seed ^= hasher(v) + 0x9e3779b9 + (seed << 6) + (seed >> 2) ;
+}
+
+
+
 /* *** Maths *** */
 
 
diff --git a/owlps-positioner/src/referencepoint.cc b/owlps-positioner/src/referencepoint.cc
index 35221ca..9e73bbd 100644
--- a/owlps-positioner/src/referencepoint.cc
+++ b/owlps-positioner/src/referencepoint.cc
@@ -17,7 +17,6 @@
 #include "stock.hh"
 
 using namespace std ;
-using std::tr1::unordered_map ;
 
 
 
@@ -397,15 +396,3 @@ ostream &operator<<(ostream &os, const ReferencePoint &rp)
 
   return os ;
 }
-
-
-
-/**
- * This is a simple call to hash_value(Point3D), because we do not want
- * to take care of the CalibrationRequest list to hash the
- * ReferencePoint.
- */
-size_t hash_value(const ReferencePoint &source)
-{
-  return hash_value(static_cast<Point3D>(source)) ;
-}
diff --git a/owlps-positioner/src/referencepoint.hh b/owlps-positioner/src/referencepoint.hh
index 3b708c2..2b1d682 100644
--- a/owlps-positioner/src/referencepoint.hh
+++ b/owlps-positioner/src/referencepoint.hh
@@ -24,7 +24,7 @@ class Request ;
 
 #include <vector>
 #include <ostream>
-#include <boost/tr1/unordered_map.hpp>
+#include <unordered_map>
 
 /// Represents a reference point in 3-D space
 class ReferencePoint: public Point3D
@@ -37,10 +37,10 @@ protected:
 
   /** @name Read accessors */
   //@{
-  std::tr1::unordered_map<std::string, Measurement>
+  std::unordered_map<std::string, Measurement>
   get_all_measurements(void) const ;
   /// Returns all the measurements sent by the given mobile
-  std::tr1::unordered_map<std::string, Measurement>
+  std::unordered_map<std::string, Measurement>
   get_all_measurements(const std::string &mac_transmitter) const ;
   //@}
 
@@ -105,9 +105,6 @@ public:
   /// Displays a ReferencePoint
   friend std::ostream &operator<<(
     std::ostream &os, const ReferencePoint &rp) ;
-
-  /// Hashes a ReferencePoint
-  friend std::size_t hash_value(const ReferencePoint &source) ;
 } ;
 
 
@@ -151,9 +148,30 @@ inline bool ReferencePoint::operator!=(const ReferencePoint &source) const
 
 
 
-struct reference_point_equal_to:
-  public std::binary_function<ReferencePoint, ReferencePoint, bool>
+namespace std
 {
+template<> struct hash<ReferencePoint>
+{
+public:
+  /**
+   * This is a simple call to the hash function for Point3D, because we
+   * do not want to take care of the CalibrationRequest list to hash the
+   * ReferencePoint.
+   */
+  size_t operator()(const ReferencePoint &source) const
+  {
+    hash<Point3D> h ;
+    return h(source) ;
+  }
+} ;
+
+template<> struct equal_to<ReferencePoint>
+{
+public:
+  /**
+   * We want to take into account only the coordinates when comparing
+   * two ReferencePoint in a container.
+   */
   bool operator()(const ReferencePoint &source1,
                   const ReferencePoint &source2) const
   {
@@ -161,6 +179,7 @@ struct reference_point_equal_to:
       static_cast<Point3D>(source1) == static_cast<Point3D>(source2) ;
   }
 } ;
+}
 
 
 
diff --git a/owlps-positioner/src/request.cc b/owlps-positioner/src/request.cc
index e904cb0..9aa0b84 100644
--- a/owlps-positioner/src/request.cc
+++ b/owlps-positioner/src/request.cc
@@ -15,12 +15,10 @@
 #include "request.hh"
 #include "calibrationrequest.hh"
 #include "referencepoint.hh"
-#include "mobile.hh"
 
 #include <sstream>
 
 using namespace std ;
-using std::tr1::unordered_map ;
 
 
 
@@ -30,7 +28,7 @@ using std::tr1::unordered_map ;
 Request::Request(
   const Mobile *_mobile,
   const Timestamp &_time_sent,
-  const std::tr1::unordered_map<string, Measurement> &_measurements
+  const unordered_map<string, Measurement> &_measurements
 ):
   type(OWL_REQUEST_UNDEFINED), nb_packets(1),
   mobile(const_cast<Mobile*>(_mobile)), time_sent(_time_sent),
@@ -40,7 +38,7 @@ Request::Request(
 }
 
 
-Request::Request(const std::tr1::unordered_map<string, Measurement>
+Request::Request(const unordered_map<string, Measurement>
                  &_measurements):
   type(OWL_REQUEST_UNDEFINED), nb_packets(1),
   mobile(NULL), measurements(_measurements), real_position(NULL)
@@ -51,7 +49,7 @@ Request::Request(const std::tr1::unordered_map<string, Measurement>
 
 Request::Request(
   const Timestamp &_time_sent,
-  const std::tr1::unordered_map<string, Measurement> &_measurements
+  const unordered_map<string, Measurement> &_measurements
 ):
   type(OWL_REQUEST_UNDEFINED), nb_packets(1),
   mobile(NULL), time_sent(_time_sent),
@@ -269,25 +267,3 @@ ostream& operator<<(ostream &os, const Request &r)
 
   return os ;
 }
-
-
-
-/**
- * The Mobile MAC address and the Timestamp are sufficient to identify
- * uniquely a Request.
- */
-size_t hash_value(const Request &source)
-{
-  size_t seed = 0 ;
-
-  boost::hash_combine(seed, source.type) ;
-  boost::hash_combine(seed, source.nb_packets) ;
-  boost::hash_combine(seed, source.time_sent) ;
-  boost::hash_combine(seed, source.time_received) ;
-  if (source.mobile)
-    boost::hash_combine(seed, source.mobile->get_mac_addr()) ;
-  if (source.real_position)
-    boost::hash_combine(seed, source.real_position) ;
-
-  return seed ;
-}
diff --git a/owlps-positioner/src/request.hh b/owlps-positioner/src/request.hh
index ddf7242..146bfc9 100644
--- a/owlps-positioner/src/request.hh
+++ b/owlps-positioner/src/request.hh
@@ -15,16 +15,16 @@
 #ifndef _OWLPS_POSITIONING_REQUEST_HH_
 #define _OWLPS_POSITIONING_REQUEST_HH_
 
-class Mobile ;
-
+#include "mobile.hh"
 #include "measurement.hh"
 #include "timestamp.hh"
+#include "posutil.hh"
 
 #include <owlps.h>
 
 #include <ctime>
 #include <vector>
-#include <boost/tr1/unordered_map.hpp>
+#include <unordered_map>
 #include <ostream>
 
 /// Represents a request sent by a Mobile
@@ -44,7 +44,7 @@ protected:
   /// List of Measurement of the request
   /** Note that this is not a pointer list, values are actually stored.
       The \em string parameter is the MAC address of the receiver AP. */
-  std::tr1::unordered_map<std::string, Measurement> measurements ;
+  std::unordered_map<std::string, Measurement> measurements ;
   /// \brief Real coordinates of the request (normally unavailable for a
   /// standard positioning request)
   Point3D *real_position ;
@@ -57,17 +57,17 @@ protected:
 public:
   Request(const Mobile *_mobile = NULL,
           const Timestamp &_time_sent = Timestamp(),
-          const std::tr1::unordered_map<std::string, Measurement>
+          const std::unordered_map<std::string, Measurement>
           &_measurements =
-            std::tr1::unordered_map<std::string, Measurement>()) ;
+            std::unordered_map<std::string, Measurement>()) ;
 
-  Request(const std::tr1::unordered_map<std::string, Measurement>
+  Request(const std::unordered_map<std::string, Measurement>
           &_measurements) ;
 
   Request(const Timestamp &_time_sent,
-          const std::tr1::unordered_map<std::string, Measurement>
+          const std::unordered_map<std::string, Measurement>
           &_measurements =
-            std::tr1::unordered_map<std::string, Measurement>()) ;
+            std::unordered_map<std::string, Measurement>()) ;
 
   Request(const Request &source) ;
 
@@ -81,7 +81,7 @@ public:
   const Timestamp& get_time_sent(void) const ;
   const Timestamp& get_time_received(void) const ;
   /// Returns all the measurements
-  const std::tr1::unordered_map<std::string, Measurement>&
+  const std::unordered_map<std::string, Measurement>&
   get_measurements(void) const ;
   /// Returns the measurement made by the AP \em mac_receiver, if any
   const Measurement*
@@ -96,7 +96,7 @@ public:
   void set_mobile(const Mobile *_mobile) ;
   void set_time_sent(const Timestamp &_time_sent) ;
   void received_now(void) ;
-  void set_measurements(const std::tr1::unordered_map
+  void set_measurements(const std::unordered_map
                         <std::string, Measurement> &_measurements) ;
   void set_real_position(const Point3D &_real_position) ;
 /// Reinitialises all attributes
@@ -125,9 +125,6 @@ public:
 
   /// Displays a Request
   friend std::ostream& operator<<(std::ostream &os, const Request &r) ;
-
-  /// Hashes a Request
-  friend std::size_t hash_value(const Request &source) ;
 } ;
 
 
@@ -166,7 +163,7 @@ inline const Timestamp& Request::get_time_received() const
 }
 
 
-inline const std::tr1::unordered_map<std::string, Measurement>&
+inline const std::unordered_map<std::string, Measurement>&
 Request::get_measurements(void) const
 {
   return measurements ;
@@ -214,7 +211,7 @@ inline void Request::received_now()
 
 
 inline void Request::
-set_measurements(const std::tr1::unordered_map<std::string, Measurement>
+set_measurements(const std::unordered_map<std::string, Measurement>
                  &_measurements)
 {
   measurements = _measurements ;
@@ -246,4 +243,33 @@ inline Request::operator bool() const
 
 
 
+namespace std
+{
+template<> struct hash<Request>
+{
+public:
+  /**
+   * The Mobile MAC address and the Timestamp shourd be sufficient to
+   * identify uniquely a Request, but we test everything.
+   */
+  size_t operator()(const Request &source) const
+  {
+    size_t seed = 0 ;
+
+    PosUtil::hash_combine(seed, source.get_type()) ;
+    PosUtil::hash_combine(seed, source.get_nb_packets()) ;
+    PosUtil::hash_combine(seed, source.get_time_sent()) ;
+    PosUtil::hash_combine(seed, source.get_time_received()) ;
+    if (source.get_mobile())
+      PosUtil::hash_combine(seed, source.get_mobile()->get_mac_addr()) ;
+    if (source.get_real_position())
+      PosUtil::hash_combine(seed, source.get_real_position()) ;
+
+    return seed ;
+  }
+} ;
+}
+
+
+
 #endif // _OWLPS_POSITIONING_REQUEST_HH_
diff --git a/owlps-positioner/src/stock.cc b/owlps-positioner/src/stock.cc
index e42bd71..6acfe74 100644
--- a/owlps-positioner/src/stock.cc
+++ b/owlps-positioner/src/stock.cc
@@ -21,8 +21,6 @@
 #include <iostream>
 
 using namespace std ;
-using std::tr1::unordered_map ;
-using std::tr1::unordered_set ;
 
 
 
@@ -36,9 +34,7 @@ unordered_map<string, Mobile> Stock::mobiles ;
 
 unordered_map<string, AccessPoint> Stock::aps ;
 
-unordered_set<ReferencePoint,
-              boost::hash<ReferencePoint>,
-              reference_point_equal_to> Stock::reference_points ;
+unordered_set<ReferencePoint> Stock::reference_points ;
 
 unordered_set<CalibrationRequest> Stock::calibration_requests ;
 
@@ -379,7 +375,7 @@ const ReferencePoint& Stock::
 find_create_reference_point(const ReferencePoint &point)
 {
   // unordered_set::insert() do all the job: see the documentation at
-  // http://boost.org/doc/libs/1_42_0/doc/html/boost/unordered_set.html
+  // http://en.cppreference.com/w/cpp/container/unordered_set/insert
   pair<unordered_set<ReferencePoint>::iterator, bool> ret =
     reference_points.insert(point) ;
   return *ret.first ;
diff --git a/owlps-positioner/src/stock.hh b/owlps-positioner/src/stock.hh
index a96c06d..73cbbd0 100644
--- a/owlps-positioner/src/stock.hh
+++ b/owlps-positioner/src/stock.hh
@@ -23,8 +23,8 @@
 #include "referencepoint.hh"
 #include "calibrationrequest.hh"
 
-#include <boost/tr1/unordered_map.hpp>
-#include <boost/tr1/unordered_set.hpp>
+#include <unordered_map>
+#include <unordered_set>
 
 /// Storage class
 class Stock
@@ -34,26 +34,24 @@ class Stock
 private:
   /// List of known Building
   /** The string key of the map is the Building name. */
-  static std::tr1::unordered_map<std::string, Building> buildings ;
+  static std::unordered_map<std::string, Building> buildings ;
 
   /// List of known Waypoint
-  static std::tr1::unordered_map<Point3D, Waypoint> waypoints ;
+  static std::unordered_map<Point3D, Waypoint> waypoints ;
 
   /// List of known Mobile
   /** The string key of the map is the Mobile MAC address. */
-  static std::tr1::unordered_map<std::string, Mobile> mobiles ;
+  static std::unordered_map<std::string, Mobile> mobiles ;
 
   /// List of known AccessPoint
   /** The string key of the map is the AccessPoint MAC address. */
-  static std::tr1::unordered_map<std::string, AccessPoint> aps ;
+  static std::unordered_map<std::string, AccessPoint> aps ;
 
   /// List of known ReferencePoint
-  static std::tr1::unordered_set
-  <ReferencePoint, boost::hash<ReferencePoint>, reference_point_equal_to>
-  reference_points ;
+  static std::unordered_set<ReferencePoint> reference_points ;
 
   /// List of known CalibrationRequest
-  static std::tr1::unordered_set<CalibrationRequest> calibration_requests ;
+  static std::unordered_set<CalibrationRequest> calibration_requests ;
 
   /** @name CalibrationRequest operations */
   //@{
@@ -126,7 +124,7 @@ public:
   static unsigned int nb_aps(void) ;
   /// Returns a reference to the AP list
   static
-  std::tr1::unordered_map<std::string, AccessPoint>& get_aps(void) ;
+  std::unordered_map<std::string, AccessPoint>& get_aps(void) ;
   /// Verify the existence of an AP
   static bool ap_exists(const std::string &mac) ;
   /// Reads the AccessPoint corresponding to a given MAC address
@@ -262,7 +260,7 @@ inline unsigned int Stock::nb_aps()
 
 
 inline
-std::tr1::unordered_map<std::string, AccessPoint>& Stock::get_aps()
+std::unordered_map<std::string, AccessPoint>& Stock::get_aps()
 {
   return aps ;
 }
diff --git a/owlps-positioner/src/timestamp.cc b/owlps-positioner/src/timestamp.cc
index c16fad4..a29817a 100644
--- a/owlps-positioner/src/timestamp.cc
+++ b/owlps-positioner/src/timestamp.cc
@@ -15,7 +15,6 @@
 #include "timestamp.hh"
 #include "configuration.hh"
 
-#include <boost/functional/hash.hpp>
 #include <iostream>
 
 using namespace std ;
@@ -250,10 +249,3 @@ inline Timestamp::operator owl_timestamp(void) const
   ret.tv_nsec = timestamp.tv_nsec ;
   return ret ;
 }
-
-
-
-size_t hash_value(const Timestamp &source)
-{
-  return boost::hash_value(static_cast<uint64_t>(source)) ;
-}
diff --git a/owlps-positioner/src/timestamp.hh b/owlps-positioner/src/timestamp.hh
index 54c5572..2afe2e8 100644
--- a/owlps-positioner/src/timestamp.hh
+++ b/owlps-positioner/src/timestamp.hh
@@ -276,4 +276,19 @@ inline Timestamp::operator uint64_t(void) const
 
 
 
+namespace std
+{
+template<> struct hash<Timestamp>
+{
+public:
+  size_t operator()(const Timestamp &source) const
+  {
+    hash<uint64_t> h ;
+    return h(source) ;
+  }
+} ;
+}
+
+
+
 #endif // _OWLPS_POSITIONING_TIMESTAMP_HH_
diff --git a/owlps-positioner/src/trilaterationalgorithm.cc b/owlps-positioner/src/trilaterationalgorithm.cc
index fc4e7fc..153c65f 100644
--- a/owlps-positioner/src/trilaterationalgorithm.cc
+++ b/owlps-positioner/src/trilaterationalgorithm.cc
@@ -19,7 +19,6 @@
 #include "posexcept.hh"
 
 using namespace std ;
-using std::tr1::unordered_map ;
 
 
 
diff --git a/owlps-positioner/src/trilaterationalgorithm.hh b/owlps-positioner/src/trilaterationalgorithm.hh
index 6dca069..502eda2 100644
--- a/owlps-positioner/src/trilaterationalgorithm.hh
+++ b/owlps-positioner/src/trilaterationalgorithm.hh
@@ -24,7 +24,7 @@ class TrilaterationAlgorithm: public virtual PositioningAlgorithm
 protected:
   const Request *request ;
 
-  std::tr1::unordered_map<AccessPoint*, float> ap_distances ;
+  std::unordered_map<AccessPoint*, float> ap_distances ;
   TrilaterationMethod *trilateration_method ;
 
   /** @name Operations */
diff --git a/owlps-positioner/src/trilaterationmethod.hh b/owlps-positioner/src/trilaterationmethod.hh
index efc8c0a..d3c3a5d 100644
--- a/owlps-positioner/src/trilaterationmethod.hh
+++ b/owlps-positioner/src/trilaterationmethod.hh
@@ -19,7 +19,7 @@ class AccessPoint ;
 
 #include "point3d.hh"
 
-#include <boost/tr1/unordered_map.hpp>
+#include <unordered_map>
 
 /// Super-class of all trilateration methods
 /**
@@ -35,11 +35,11 @@ public:
 
   /// Selects a point in 3D space
   virtual Point3D trilaterate(
-    const std::tr1::unordered_map<AccessPoint*, float> &ap_distances) = 0 ;
+    const std::unordered_map<AccessPoint*, float> &ap_distances) = 0 ;
 
   /// Selects a point in 2D space, given its vertical coordinate (z)
   virtual Point3D trilaterate_2d(
-    const std::tr1::unordered_map<AccessPoint*, float> &ap_distances,
+    const std::unordered_map<AccessPoint*, float> &ap_distances,
     float z) = 0 ;
 } ;
 
diff --git a/owlps-positioner/src/waypoint.cc b/owlps-positioner/src/waypoint.cc
index 42291f4..74d095b 100644
--- a/owlps-positioner/src/waypoint.cc
+++ b/owlps-positioner/src/waypoint.cc
@@ -18,7 +18,6 @@
 #include <sstream>
 
 using namespace std ;
-using std::tr1::unordered_set ;
 
 
 
diff --git a/owlps-positioner/src/waypoint.hh b/owlps-positioner/src/waypoint.hh
index abe7c66..b14f39d 100644
--- a/owlps-positioner/src/waypoint.hh
+++ b/owlps-positioner/src/waypoint.hh
@@ -19,7 +19,7 @@ class Building ;
 
 #include "point3d.hh"
 
-#include <boost/tr1/unordered_set.hpp>
+#include <unordered_set>
 #include <ostream>
 #include <stdexcept>
 
@@ -34,7 +34,7 @@ class Waypoint: public Point3D
 {
 protected:
   /// List of Building associated with the Waypoint
-  std::tr1::unordered_set<Building*> buildings ;
+  std::unordered_set<Building*> buildings ;
 
 public:
   Waypoint(const Building *_b = NULL, const float &_x = 0,
@@ -52,7 +52,7 @@ public:
   //@{
   /// #buildings's first element read accessor
   Building* get_1st_building(void) const ;
-  const std::tr1::unordered_set<Building*>& get_buildings(void) const ;
+  const std::unordered_set<Building*>& get_buildings(void) const ;
   //@}
 
   /** @name Write accessors */
@@ -95,7 +95,7 @@ inline Building* Waypoint::get_1st_building() const
 }
 
 
-inline const std::tr1::unordered_set<Building*>&
+inline const std::unordered_set<Building*>&
 Waypoint::get_buildings() const
 {
   return buildings ;
@@ -144,4 +144,25 @@ inline bool Waypoint::operator!=(const Waypoint &wp) const
 
 
 
+namespace std
+{
+template<> struct hash<Waypoint>
+{
+public:
+  /**
+   * This is a simple call to the hash function for Point3D, because a
+   * waypoints should have unique coordinates independently from the
+   * building they belong to (the coordinate system is supposed to be
+   * common to all the buildings).
+   */
+  size_t operator()(const Waypoint &source) const
+  {
+    hash<Point3D> h ;
+    return h(source) ;
+  }
+} ;
+}
+
+
+
 #endif // _OWLPS_POSITIONING_WAYPOINT_HH_
diff --git a/owlps-positioner/tests/building_test.hh b/owlps-positioner/tests/building_test.hh
index ca40335..d66e090 100644
--- a/owlps-positioner/tests/building_test.hh
+++ b/owlps-positioner/tests/building_test.hh
@@ -27,9 +27,9 @@ public:
     // Simple read accessors
     Building b1 ;
     TS_ASSERT_EQUALS(b1.get_name(), "Unnamed building") ;
-    std::tr1::unordered_map<std::string, Area*> areas1 ;
+    std::unordered_map<std::string, Area*> areas1 ;
     TS_ASSERT_EQUALS(b1.get_areas(), areas1) ;
-    std::tr1::unordered_set<Waypoint*> waypoints1 ;
+    std::unordered_set<Waypoint*> waypoints1 ;
     TS_ASSERT_EQUALS(b1.get_waypoints(), waypoints1) ;
 
     // Write & read accessors
diff --git a/owlps-positioner/tests/inputcsv_test.hh b/owlps-positioner/tests/inputcsv_test.hh
index d92c7d1..e2295c0 100644
--- a/owlps-positioner/tests/inputcsv_test.hh
+++ b/owlps-positioner/tests/inputcsv_test.hh
@@ -75,7 +75,7 @@ public:
     for (std::vector<AccessPoint>::const_iterator i = TestUtil::aps.begin() ;
          i != TestUtil::aps.end() ; ++i)
       {
-        std::tr1::unordered_map<std::string, Measurement>::const_iterator
+        std::unordered_map<std::string, Measurement>::const_iterator
         measurement_it1 =
           request1.get_measurements().find(i->get_mac_addr()) ;
         TS_ASSERT(request1.get_measurements().end() != measurement_it1) ;
@@ -100,7 +100,7 @@ public:
     for (std::vector<AccessPoint>::const_iterator i = TestUtil::aps.begin() ;
          i != TestUtil::aps.end() ; ++i)
       {
-        std::tr1::unordered_map<std::string, Measurement>::const_iterator
+        std::unordered_map<std::string, Measurement>::const_iterator
         measurement_it1 =
           request1.get_measurements().find(i->get_mac_addr()) ;
         TS_ASSERT(request1.get_measurements().end() != measurement_it1) ;
@@ -125,7 +125,7 @@ public:
     for (std::vector<AccessPoint>::const_iterator i = TestUtil::aps.begin() ;
          i != TestUtil::aps.end() ; ++i)
       {
-        std::tr1::unordered_map<std::string, Measurement>::const_iterator
+        std::unordered_map<std::string, Measurement>::const_iterator
         measurement_it1 =
           request1.get_measurements().find(i->get_mac_addr()) ;
         TS_ASSERT(request1.get_measurements().end() != measurement_it1) ;
diff --git a/owlps-positioner/tests/minmax_test.hh b/owlps-positioner/tests/minmax_test.hh
index a623b97..6f4b229 100644
--- a/owlps-positioner/tests/minmax_test.hh
+++ b/owlps-positioner/tests/minmax_test.hh
@@ -17,7 +17,7 @@ public:
         ap2(Point3D(10,0,0)),
         ap3(Point3D(0,10,0)),
         ap4(Point3D(5,5,4)) ;
-    std::tr1::unordered_map<AccessPoint*, float> ap_distances ;
+    std::unordered_map<AccessPoint*, float> ap_distances ;
     ap_distances[&ap1] = 7.071 ;
     ap_distances[&ap2] = 7.071 ;
     ap_distances[&ap3] = 7.071 ;
diff --git a/owlps-positioner/tests/referencepoint_test.hh b/owlps-positioner/tests/referencepoint_test.hh
index 6b81175..b8bdc1d 100644
--- a/owlps-positioner/tests/referencepoint_test.hh
+++ b/owlps-positioner/tests/referencepoint_test.hh
@@ -64,7 +64,7 @@ public:
     CalibrationRequest calibrationrequest1 ;
     Measurement measurement1(&ap1) ;
     measurement1.add_ss(-78) ;
-    std::tr1::unordered_map<std::string, Measurement> measurements ;
+    std::unordered_map<std::string, Measurement> measurements ;
     measurements["aa:bb:cc:dd:ee:ff"] = measurement1 ;
     calibrationrequest1.set_measurements(measurements) ;
     ReferencePoint referencepoint1 ;
diff --git a/owlps-positioner/tests/request_test.hh b/owlps-positioner/tests/request_test.hh
index 7b11825..fcd643b 100644
--- a/owlps-positioner/tests/request_test.hh
+++ b/owlps-positioner/tests/request_test.hh
@@ -11,7 +11,7 @@ public:
   {
     // Default constructor
     Request r1 ;
-    std::tr1::unordered_map<std::string, Measurement> measurements ;
+    std::unordered_map<std::string, Measurement> measurements ;
     Request r2(measurements) ;
     TS_ASSERT_EQUALS(r1, r2) ;
 
@@ -34,7 +34,7 @@ public:
     current_time.now() ;
     AccessPoint ap1(Point3D(1,2,3), "192.168.0.1", "aa:bb:cc:dd:ee:ff") ;
     Measurement meas1(&ap1) ;
-    std::tr1::unordered_map<std::string, Measurement> measurements ;
+    std::unordered_map<std::string, Measurement> measurements ;
     measurements["aa:bb:cc:dd:ee:ff"] = meas1 ;
     Mobile mob1 ;
     Request r1(&mob1, current_time, measurements) ;
@@ -68,7 +68,7 @@ public:
   {
     // ==
     struct timespec current_time ;
-    std::tr1::unordered_map<std::string, Measurement> measurements ;
+    std::unordered_map<std::string, Measurement> measurements ;
     Measurement meas1 ;
     measurements["aa:bb:cc:dd:ee:00"] = meas1 ;
     clock_gettime(CLOCK_REALTIME, &current_time) ;
diff --git a/owlps-positioner/tests/stock_test.hh b/owlps-positioner/tests/stock_test.hh
index a64d052..ead3495 100644
--- a/owlps-positioner/tests/stock_test.hh
+++ b/owlps-positioner/tests/stock_test.hh
@@ -129,7 +129,7 @@ public:
     CalibrationRequest calibrationrequest1 ;
     Measurement measurement1(&ap1) ;
     measurement1.add_ss(-23) ;
-    std::tr1::unordered_map<std::string, Measurement> measurements ;
+    std::unordered_map<std::string, Measurement> measurements ;
     measurements["aa:bb:cc:dd:ee:ff"] = measurement1 ;
     calibrationrequest1.set_measurements(measurements) ;
     TS_ASSERT_THROWS(Stock::closest_reference_point(calibrationrequest1),
diff --git a/owlps-positioner/tests/testutil.cc b/owlps-positioner/tests/testutil.cc
index b9b5bac..d476a82 100644
--- a/owlps-positioner/tests/testutil.cc
+++ b/owlps-positioner/tests/testutil.cc
@@ -9,7 +9,6 @@
 #include <sys/stat.h>
 
 using namespace std ;
-using std::tr1::unordered_map ;
 
 vector<AccessPoint> TestUtil::aps ;
 vector<Mobile> TestUtil::mobiles ;
diff --git a/owlps-positioner/tests/testutil.hh b/owlps-positioner/tests/testutil.hh
index 5b765a1..61c81f0 100644
--- a/owlps-positioner/tests/testutil.hh
+++ b/owlps-positioner/tests/testutil.hh
@@ -10,7 +10,7 @@
 
 #include <string>
 #include <vector>
-#include <boost/tr1/unordered_map.hpp>
+#include <unordered_map>
 
 class TestUtil
 {
@@ -40,8 +40,8 @@ public:
   static bool request_equals(const Request &first,
                              const Request &second) ;
   static bool measurements_unordered_map_equals(
-    std::tr1::unordered_map<std::string,Measurement> first,
-    std::tr1::unordered_map<std::string,Measurement> second) ;
+    std::unordered_map<std::string,Measurement> first,
+    std::unordered_map<std::string,Measurement> second) ;
   static bool measurement_equals(const Measurement &first,
                                  const Measurement &second) ;
 
diff --git a/owlps-positioner/tests/waypoint_test.hh b/owlps-positioner/tests/waypoint_test.hh
index cb4380c..9b5f71a 100644
--- a/owlps-positioner/tests/waypoint_test.hh
+++ b/owlps-positioner/tests/waypoint_test.hh
@@ -47,7 +47,7 @@ public:
     // Write & read accessors
     Building b2("My Second Building") ;
     wp1.add_building(&b2) ;
-    std::tr1::unordered_set<Building*> buildings ;
+    std::unordered_set<Building*> buildings ;
     buildings.insert(&b1) ;
     buildings.insert(&b2) ;
     TS_ASSERT_EQUALS(wp1.get_buildings(), buildings) ;